УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ МАССЫ ИСКУССТВЕННЫХ КРИСТАЛЛОВ В ПРОЦЕССЕ ИХ ВЫРАЩИВАНИЯ В АВТОКЛАВАХ ВЫСОКОГО ДАВЛЕНИЯ

1. Устройство для измерения массы искусственных кристаллов в процессе их выращивания в автоклавах высокого давления, содержащее герметичную камеру, две взаимодействующие магнитные системы, одна из которых установлена в герметичной камере и связана с изменяющейся массой, а другая, связанная с измерительным устройством, установлена в стакане из немагнитного материала, закрепленном в крышке герметичной камеры, отличающееся тем, что магнитная система, связанная с изменяющейся массой, закреплена на одном из плеч трехплечего рычага, при этом на двух других плечах рычага закреплены изменяющаяся масса и противовес, а магнитная система, установленная в стакане из немагнитного материала, связана с регистрирующим устройством и уравновешена грузиком. 2. Устройство для измерения массы кристалла в процессе их роста по п.1, отличающееся тем, что регистрирующее устройство выполнено в виде неподвижно закрепленной шкалы и стрелки, установленной на шкиве. 3. Устройство для измерения массы кристаллов в процессе их роста по п.1, отличающееся тем, что трехплечий рычаг закреплен на кронштейне, установленном на стакане из немагнитного материала посредством гибких элементов. 4. Устройство для измерения массы кристаллов в процессе их роста, по п. 3, отличающееся тем, что гибкие элементы выполнены в виде стальных лент. (19) RU (11) 19 917 (13) U1 (51) МПК G01G 1/02 (2000.01) G01G 7/00 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 2001105267/20 , 26.02.2001 (24) Дата начала отсчета срока действия патента: 26.02.2001 (46) Опубликовано: 10.10.2001 (72) Автор(ы): Абдрафиков С.Н., Мартыненко М.Е. (73) Патентообладатель(и): Абдрафиков Станислав Николаевич, Мартыненко Михаил Евгеньевич Ñòðàíèöà: 1 U 1 1 9 9 1 7 R U U 1 (57) Формула полезной модели 1. Устройство для измерения массы искусственных кристаллов в процессе их выращивания в автоклавах высокого давления, содержащее герметичную камеру, две взаимодействующие ...

Устройство дл измерени переменной массы твердого тела в герметичном объеме

ВЕСЫ С МАГНИТОЭЛЕКТРИЧЕСКИМ УРАВНОВЕШИВАНИЕМ ДЛЯ ИССЛЕДОВАНИЯ МАТЕРИАЛОВ

Изобретение предназначено для использования в массоизмерительной технике и направлено на решение задачи повышения точности измерения и чувствительности проведения исследований быстропротекающих процессов. Весы содержат стрелку 1, рамку 2, постоянный магнит 3, герметичные корпус 4, подвеску 5, сердечник 6, катушку 7, регистрирующий прибор в виде генератора звуковой частоты 8, преобразователя сигналов 9 и графопостроителя 10, а также пружину-токопровод 11 и источник питания. Сердечник 6 подвешен на конце стрелки 1, обратном концу, к которому подвешен груз, и связан через катушку 7 с регистрирующим прибором. Источник питания весов выполнен в виде источника стабилизированного напряжения 1, 2, а герметичный корпус, в котором размещен груз, подвешенный к стрелке, - в виде установленного на тележке 22 термостата цилиндрической формы с отверстиями на поверхности. 2 з. п. ф-лы, 1 ил.

ВЕСОИЗМЕРИТЕЛЬНЫЙ ДАТЧИК

Использование: измерение веса. Сущность изобретения: весоизмерительный датчик содержит высокочастотный генератор с положительной обратной связью, включающий в себя транзисторный каскад с индуктивно связанными между собой катушками без сердечников в эмиттерной и коллекторной цепях, а в качестве сердечника используется катушка индуктивности выходного каскада датчика. 1 ил.

ТРАНСПОРТНАЯ РЕЛЬСОВАЯ СИСТЕМА СО СРЕДСТВОМ ВЗВЕШИВАНИЯ

ВЕСОИЗМЕРИТЕЛЬНЫЙ ДАТЧИК

Датчик относится к измерительной технике и может быть использован для измерения. Изобретение способствует повышению точности и чувствительности. Датчик построен на основе высокочастотного генератора с положительной обратной связью. Генератор выполнен на транзисторе, в эмиттерной и коллекторной цепях которого включены индуктивно связанные между собой обмотки без сердечников. Третья обмотка также без сердечника установлена на подвижном элементе датчика с возможностью взаимодействия с обмоткой генератора и подключена к выходному каскаду датчика.

Цифровое весоизмерительное устройство

Весы

Устройство для демпфирования и предупреждения ошибочной регистрации к весам

Весы для измерения магнитной восприимчивости слабомагнитных веществ

Трехопорные электромагнитные весы

Цифровое весоизмерительное устройство

Изобретение относится к измерительной технике и позволяет повысить .быстродействие устройства, которое содержит компенсационную катушку 10, датчик перемещения 2, интегрирующий широтно-импульсный регулятор 5 тока компенсационной катушки 10, ключ 6 со стабилизатором 7 эталонного тока, накопительные счетчики 8, блок 9 индикации , узел 4 коррекции с развязывающим усилителем 11. Для повышения быстродействия в цифровую систему введены балансный модулятор 12, источник 15 опорного напряжения, узел 16 формирования сигнала коьшенсации помех, фазосдвигающую цепочку 22, узел 16 формирования сигнала компенс :сации помех содержит последовательно включенные разделительную цепь 18, (Л фильтр 21 нижних частот, широкополос ...

Устройство для взвешивания микрогрузов

Тензовесы

УСТРОЙСТВО ДЛЯ МОДЕЛИРОВАНИЯ ЭКСТРЕМАЛЬНЫХ ХАРАКТЕРИСТИК СИСТЕМ АВТОМАТИЧЕСКОГО РЕГУЛИРОВАНИЯ

Установка для исследования процесса сушки сыпучих материалов

Крутильные весы

Аналитические весы с электромагнитнымуровновешиванием

Устройство электромагнитной компенсации нагрузки для микровесов

Весы для взвешивания штучных изделий

Устройство для сортировки предметов по весовым группам

Весоизмерительный ролик

УСТРОЙСТВО ДЛЯ МОДЕЛИРОВАНИЯ СЕТЕВЫХ ГРАФИКОВ

Цифровые весы

Изобретение относится к области информационно-измерительной техники. Цель изобретения - повьшение быстродействия весов. Весы содержат чувствительный элемент 1, грузоприемиую площадку 2 с грузом 3, систему 4 подвески, преобразователь 5 некомпенсации , состоящий из светодиода 6, фотоприемника 7 и щелевой диафрагмы 8, магнитную систему 9, состоящую из постоянного магнита 10 и измерительной катушки 11, регистр, генератор 13, делитель 14 частоты, генератор 15, счетчик 16, компаратор 17, ключ 18, источник 19 тока компенсации груза и источник 20 компенсации тары, сумматор 21 и устройство 22 синхронизации . Введение новых элементов и образование новых связей между злемен- тами устройства позволяют производить непосредственное преобразование сигнала некомпенсации в сигнал уравновешивания . Частота следования импульсов на выходе компаратора 17 определяется из соотношения между частотой следования импульсов и собственной частотой подвижной части весов , чтобы обеспечить малую погрешность от пульсаций ...

Весы с электромагнитным уравновешиванием

Изобретение относится к весоизмерительной технике в частности к весам для измерения массы с автоматическим уравновешиванием. Цель изобретения - повышение точности и надежности работы весов. В установившемся режиме при измерении веса чувствительный элемент 1 находится в исходном положении. Световой поток от источника 13 света проходит через прорезь 12 флажка 11 и освещает часть фоточувствительных поверхностей двух фотоприемников 14, освещенность которых определяет величину на выходах 15 и 16. Разность этих сигналов преобразуется дифференциальным усилителем 17 и через блок 18 передачи поступает на вход регулятора 19, который изменяет ток катушки 9 электромагнита 10 силовой компенсации так, что сигнал на входе регулятора 19 равен нулю. При наложении груза 3 на грузоприемную площадку 2 чувствительный элемент 1 перемещается и положение прорези 12 флажка 11 изменяется, освещенность одного из фотоприемников 14 увеличивается, другого уменьшается, изменяется сигнал на выходе дифференциального усилителя ...

Микроаналитические весы

... 1. МИКРОАНАЛИТИЧЕСКИЕ ВЕСЫ, содержащие подвешенное на вертикальных pacTstxKBK коромысло с подвеской для грузоприемной чашки и с . датчиком отклонения, подключенным к блоку цифровой индикации, и систему автоматического уравновеипгаания коро мыслоа с жестко соединенным с кореь- мыслом элементом,-воспршгамакпшм компенсирукяцее усилие, н с узлом боткн компенсируюшего усилия, соеданенным с регулируемым всточнвком пенсапионного тока, отличаюш8 е с я тем, что, с целью повышения точности измерения за счет ясключвнвя обратного воздействия элемента, воспрянвмаюшего компевоирующее -усилие, в них элемент, воспринимающий компен- сируюшее усилие, выполнен в виде экфана , а узел выработки компенсирУвЛиего усилия - в виде регулируемого всточника света, расположенного над экраном. § 2. Весы по п. 1, о т л я ч а ю ш н е с я тем, что регулвру мый ник света выполнен в виде нескольких светонзлучакших элементов, чвспо ftoToрьк . равно чнслвг декад блояв цифровой И Hflff 1СЙИИ1К t ...

Устройство для измерения малых сил

Изобретение относится к динамометрической технике, а именно к автоматическим устройствам аналитического типа, применяемым для проведения физико-технических, термо-физических и термогравиметрических измерений. Цель изобретения - повышение точности. На грузоприемные площадки 16 и 17 в верхнем положении арретира 41 и его упоров 39 и 40 устанавливают исследуемый образец 18 и тарный груз 19, при этом после разарретирования угол отклонения коромысла 1 ΔY за счет подбора груза 19 устанавливают равным 0. Небольшие отклонения угла ΔY от нуля уравновешивают путем ввода тока J0от блока 36 установки нуля. Подъемом /опусканием/ гаек 7 и 8 добиваются положения безразличного равновесия коромысла 1, при котором показания АЦП 38 в любом положении выключателя 45 неизменны. После проверки точек начального равновесия включают устройство 44 физического воздействия, создающее электромагнитную силу FX, под действием которой коромысло 1 наклоняется и преобразователь 4 некомпенсации вырабатывает электрический сигнал ...

Самопишущий динамометр

Автоматические весы с электромагнитным уравновешиванием

Изобретение относится к весоизмерительной технике. Целью изобретения является повьшение точности взвешивания. Для этого коромысло 1 выполнено в виде двух параллельных электропроводяЕцИХ изолированных друг от друга стержней 2 и 3 и подвешено на электропроводящих растяжках 4 и 5. Электромагнитный компенсатор при этом вьтолнен в виде двух неподвижно закрепленных на основании весов электромагнитов 8 и 9 переменного тока, в зазорах между полюсами которых расположены соответственно две подвижные уравновешивающие катуш2си 6 и 7, жестко прикрепленные к подвешенному на растяжках 4 и 5 коромыслу 1 симметрично относительно его оси вращения. При наложении груза 12 на чашку 11 коромысло 1 отклоняется от положения равновесия. Взаимное положение катушки 6, одновременно являющейся генераторной, и приемной катушки 16 преобразователя отклонения изменяется, в результате чего переменный магнитньй поток касл ...

Трехопорные электромагнитные весы

Изобретение относится к весоизмерительной технике. Цель изобретения - увеличение верхнего предела измерения и повышение точности. Измеряемый груз устанавливают на грузоподъемную чашку 1 и его масса распределяется на упоры 3. Составляющие массы груза создают входные моменты, которые вызывают поворот прямоугольной рамы 6 на угол, определяемый угловой жесткостью утоненной перемычки 7. Этот поворот вызывает изменение зазоров между электродами 15 и 17, 16 и 18 емкостного датчика перемещения, что приводит к изменению емкостей, которые преобразуются массовой измерительной цепью в напряжение, которое усиливается, выпрямляется и выходной ток создает в обмотках силовой компенсации усилие, под действием которого подвижные чувствительные элементы, выполненные в виде пластин 4, поворачиваются в обратную сторону относительно поворота прямоугольной рамы 6. 2 ил.

Весоизмерительное устройство

Изобретение относится к измерительной технике и может быть использовано для создания эталонных и образцовых весов. Цель изобретения - повышение точности взвешивания. Весоизмерительное устройство содержит чувствительный элемент с датчиком некомпенсации 1, компенсирующую катушку 2, подключенную через ключ 5 к двум разнополярным генераторам тока 3 и 4, таймер 6, выход которого подключен к управляющему входу ключа 5, а тактовый вход - к выходу генератора 7, блок индикации 8 и блок обработки сигнала некомпенсации 9, состоящий из аналого-цифрового преобразователя 10, входом связанного с выходом датчика некомпенсации 1, а выходом - с первыми суммирующими входами сумматоров 11, 12 и 13 и с входом регистра сдвига 14. Выход регистра сдвига 14 непосредственно связан с двумя вычитающими, а через регистр сдвига 15 - с вторым суммирующим входом сумматора 11, третий суммирующий вход которого через регистр хранения 16 соединен с собственным выходом и вторым суммирующим входом сумматора 12. Выход сумматора ...

Весы с электромагнитным уравновешиванием

ВЕСЫ С ЭЛЕКТРОМАГНИТНЫМ . УРАВНОВЕШИВАНИЕМ, содержащие чувствительный элемент с грузоприемной чашкой , установленный на упругом подвесе , датчик перемещения, делитель напряжения , модулятор и последователь но соединенные конденсатор, усилитель и фазочувствительный демодулятор , подключенные через ключ, связанный с модулятором, к катушке силовой компенсации, установленной на чувствительном элементе, отличающиеся тем, что, с целью повышения точности за счет уменьшения погрешности масштабного коэффициента делителя напряжения, в них введены дополнительный делитель напряжения и два переключателя, причем вход первого переключателя подключен к выходу датчика перемещения, один -выход - к входу делителя напряжения , а другой выход - к входу дополнительного делителя, напряжения, один вход второго переключателя под (Л к/почен к выходу делителя напряжения второй вход - к выходу дополнительного де.7штеля напряжения, выход второго переключателя соединен с конден-: | сатором, а управляющие входы переключателей ...

Весы с электромагнитным уравновешиванием

ВЕСЫ ДЛЯ ТОЧНЫХ ВЗВЕШИВАНИЙ

Электромагнитные весы

Весоизмерительное устройство

ELEKTROMAGNETISCH KRAFTKOMPENSIERENDE PRAEZISIONSWAAGE

Electronic digital weighing scales - has transformer coupling factor varied by applied load controlling transmitted signal

Weighing scales, with a digital readout, have a weighing platform (1) connected to a carrier rod (2) which bears a ferrite core (3). This core operates on a transformer for an oscillator having primary (W1) and secondary (W2) windings to vary the transmitted signal amplitude by controlling the coupling factor. A resistor and capacitor (R, C) acts as the time constant for the oscillator, and a transistor (T2) serves as impedance converter. The alternating signal is fed to an operational amplifier (5) and rectified by a diode (D2) and integrated by a capacitor (C1). The DC signal controls a digital indicator by means of an intermediate analogue/digital converter (7).

Verfahren und Einrichtung zur Bestimmung des Gewichtes von Lebensmitteln in einem Mikrowellenherd

AN ELECTRONIC BALANCE

Elektrische Praezisionswaage

KAPAZITIVER POSITIONSDETEKTOR AN EINER ELEKTROMAGNETISCH KRAFTKOMPENSIERENDEN WAAGE

Elektromechanischer Wandler

Präzisionswaage

WAAGE

Registriervorrichtung fuer eine Quarzwendel-Feinwaage

Elektronischer Wägeaufnehmer

Für einen elektronischen Wägeaufnehmer (10) mit einer digitalen Signalverarbeitungseinheit, die zumindest einen Filter (12) mit Tiefpasscharakteristik enthält, mit dessen Hilfe aus dem Ausgangssignal des Wägeaufnehmers der Gleichanteil (m) ermittelt und daraus das Wägeergebnis abgeleitet wird, wird vorgeschlagen, dass von der digitalen Signalverarbeitungseinheit (19) zusätzlich ein erschütterungsabhängiges Signal ermittelt wird und dass elektronische Komponenten (18) vorhanden sind, die den Gleichanteil (m) in Abhängigkeit von der Größe des erschütterungsabhängigen Signals verändern. DOLLAR A Auf diese Weise lässt sich das Verhalten des Wägeaufnehmers gegenüber Erschütterungen und Vibrationen des Aufstellortes deutlich verbessern.

Electrical balance

In an electrical balance with a permanent-magnet system for generating a load-proportional counterforce, magnetic shielding has to be provided for high resolutions. In order to improve the shielding effect against low-retentivity material in the vicinity of the balance, it is proposed to install an additional small permanent magnet which influences the magnetic field in the air gap of the permanent-magnet system. When low-retentivity material approaches from the side of the additional permanent magnet, the latter acts in two ways: on the one hand, it weakens the field in the air gap of the permanent-magnet system in the conventional way, and on the other hand it improves the magnetic return of the additional permanent magnet and thereby increases its effect on the air gap of the permanent-magnet system. These two effects cancel themselves if the additional permanent magnet is dimensioned correctly.

Monolithischer Wägeblock

Die Erfindung betrifft einen monolithischen Wägeblock, der nach dem Prinzip der generativen Fertigung (3D-Druck) hergestellt ist.

Electronic weighing device with precision adjustment - has narrow neck section for separating angularly adjustable region on which transfer lever is fastened from rest of system carrier.

The weighing device has a system carrier (21), a movable weighing pan and a coupling element allowing the force exerted on the weighing pan to be transferred to the end of a transfer lever which supports a coil at its opposite end. The coil lies in the air-gap of a magnetic system attached to the system carrier. The latter has a neck section (44) for separating one part (42) for supporting the transfer lever from the remainder. The neck section defines a horizontal rotation axis parallel to the longitudinal axis of the transfer lever in the vertical symmetry plane, allowing limited, angular adjustment of the part supporting the transfer lever. ADVANTAGE - Allows adjustment without altering height position of lever or reducing stability of weighing system.

MESSWERTGEBER FUER ELEKTROMECHANISCHE PERSONENWAAGEN

Stueckzahlmesseinrichtung

ELEKTROMAGNETISCH KRAFTKOMPENSIERENDE WAAGE

Improvements in electrical circuit arrangements of electro-magnetic devices for indicating the magnitude of a deflection

... 701,091. Measuring bridges. BLACK & DECKER MANUFACTURING CO. June 30, 1948 [April 5, 1948], No. 17548/48. Class 37 [Also in Group XXXVIII] In a bridge circuit for indicating the deflections of a balance or scale of the kind described in Specification 698,793, [Group XXXVIII], an armature is displaced by a moving member of the scale between the poles of two magnetically cored coils to differentially vary their inductances. The coils 1, 2 are connected in series with fixed resistances 7, 8 as adjacent arms of an A.C. fed bridge whose remaining arms comprise the potentiometer 11 symmetrically in series with condenser 13 and condenser 14 each of which is in series with a pair of variable resistances correspondingly ganged in opposition and in tandem, respectively for zero and calibration adjustment, and the unbalance voltage between the junction of the coils and the potentiometer slider is applied through switch 24, 25 to an indicating circuit. The latter comprises two bridge rectifiers whose ...

ELECTRICAL BALANCE ASSEMBLIES

... 1391000 Digital weighing apparatus METTLER INSTRUMENTE AG 7 Dec 1972 [27 June 1972] 56577/72 Heading G4H [Also in Division G1] Weighing apparatus comprises a load carrier and a comparator 23 for comparing a predetermined threshold range with signals corresponding to oscillations of the load carrier about its rest position, a digital weight measurement being provided only when the measurement values lie within the range for the duration of at least one measuring period. The balance 10 which may be similar to that described in Specifications 1,324,499 or 1,331,737, is connected to a control circuit 11 which supplies an analogue weight signal to a digital voltmeter 12 of the dual ramp type and a balance condition monitor 14. The monitor 14 includes a differentiating circuit 17 and an integrating circuit 19, the outputs of which are compared in the comparator 23 with the range values from a reference voltage source 22. A store and time delay formed by flip-flops FF1, FF2 and FF3, FF4 receive ...

Improvements in or relating to weighing machines

... 727,063. Filling-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., LOVETT, A. E., WALLER, M. SALWAY-, and FORMAN, A. W. Aug. 31, 1953 [Aug. 30, 1952], No. 21855/52. Class 94 (1). [Also in Groups XVIII and XXX] In a machine for filling cartons with a predetermined weight of tacks, a conveyer belt 149 is intermittently actuated (see Group XXX) to position cartons 26 in turn under a shoot 28. Each carton receives the desired weight of tacks down shoot 28 from an automatic feed weighing machine (see Group XVIII). The cartons are finally moved off the conveyer belt onto a table 152. The operation of contacts by the balance beam completes the circuit of a solenoid provided an empty carton 26, is positioned immediately under the delivery shoot 28 thus closing contacts 214. The solenoid actuates a bell-crank lever to withdraw a stop and allow the weigh-pan to rotate under the weight of tacks and empty into shoot 28. The cartons are held on the conveyer belt by lugs 146, Fig. 9.

Electrical weighing apparatus

... 601,083. Electric weighing-apparatus. GROOT, M. J. DE. Oct. 9, 1945, No. 26335. Convention date, June 14, 1941. [Class 143] [Also in Group XXXVIII] A conductor supported in a magnetic or electric field is tensioned by a weight to be measured, and a current passed through the wire to deflect it in the field. The weight is then measured either by the deflection produced by a predetermined current or by the current or voltage needed to produce a predetermined deflection. Fig. 1 shows the conductor wire 1 supported between the poles 4, 5, of a permanent or electromagnet. Deflection of the wire is observed by means of a light source 8, and aligned optical projection systems 6, 7 located inside the poles 4, 5, which project an image of the wire on to a screen 9. The weight to be measured is suspended from the wire at 3, but in an alternative arrangement, Fig. 3, (not shown) the wire is supported at its ends in a horizontal position and loaded by the weight at an intermediate point. In this case ...

WEIGHING APPARATUS

... 1346759 Transistor pulse generators AUTOPACK Ltd 26 May 1971 [17 March 1970] 12815/70 Heading H3T [Also in Division G1] A weighing apparatus comprises a balance beam 10, Fig. 1, carrying a soft iron armature 11, 12 at each end, associated with coils 13, 14 respectively, connected in the feedback circuits of a multivibrator 15, whereby the mark and space intervals are determined by the inductances of coils 13, 14.

WEIGHING MACHINE

Mass transducer

Apparatus for screening capsules using velocity measurements

WEIGHING APPARATUS

... 1,271,085. Screw conveyer. AUTOPACK Ltd. 23 July, 1969 [17 May, 1968], No. 23541/68. Heading B8A. [Also in Division G1] Articles to be weighed are sequentially fed by a screw 18 (Fig. 1) to a rotating table 10 and each located on one of a series of weighing platforms 17 (Fig. 2) so that it displaces the movable electrode 22 of a variable capacitor, whose capacitance is converted to a D.C. voltage for charging a corresponding series of memory capacitors.

Load measuring system

... 1,115,259. Capacitive load cells. GENERAL DYNAMICS CORPORATION. March 6, 1967 [May 20, 1966], No. 10472/67. Heading G1N. A force or load measuring capacitive transducer comprises a pair of load receiving resilient steel plates 11, 14 (Fig. 1) held apart by a plurality of elastically deformable columns 15 which may be integral with the upper or lower plate and are uniformly distributed over the load bearing area thereof. In the spaces between the columns a capacitor plate 19 and an insulating block 20 are fixed to the upper plate and a capacitor plate 17 and insulating block 18 to the lower plate. A layer of resilient dielectric material 21 is sandwiched between the capacitor plates. Under applied load the columns are compressed and the spacing between the capacitor plates is varied. The capacitor may be connected in a bridge circuit to provide an indication of the load. Alternatively in Fig. 6 (not shown), the load sensing capacitor and a reference capacitor are connected in a differential ...

COMPACT FORCE TRANSDUCER WITH MECHANICAL MOTION AMPLIFICATION

Weighing machine with built-in calibrating means.

A weighing machine, operable on the principle of electromagnetic force compensation, comprises a weighing pan (3) for reception of a load to be weighed, a coil (11) through which a current flows and arranged in the field of a permanent magnet system (10) for the production of a counterforce balancing the load, a built-in, calibrating weight (18) which can be lowered, as shown, to load the weighing system, and an electronic evaluating system (26-28) providing an indication of the weighing result. The calibrating weight (18) does not need to be adjusted to a particular weight during manufacture since a storage element (17), in which the weight value of the calibrating weight (18) is digitally stored, is included in the electronic evaluating system. Calibration at some time after manufacture is carried out by lowering the calibrating weight and comparing the then measured value with the previously stored value. The calibration load can be applied via a lever, Fig. 3 (not shown). ...

Position sensor

For producing readings representative of the position of a fluid-powered actuator a magnetic position-sensing system is used which is out of contact with the actuator's ram 28 and is completely united with the actuator's cylinder. The sensing system uses a periodic magnetic field pattern 30 on the ram 28 itself and a number of magnetic field detectors 32, 34 placed in an end plate 24 of the actuator clear of the ram's outer face. The true position of the ram within one period of the magnetization pattern is measured by electrical interpolation based on output signals of the different magnetic field detectors. The magnetic field pattern 30 may be induced in the material of the ram itself, or in a strip or layer of magnetisable material applied to or embedded in, the ram. The pattern 30 may be helical as shown, or may consist of axially-displaced rings of alternate polarity. ...

Cross sectional area measuring device

A device for continuously measuring the cross-sectional area and/or weight per unit length of hot metal billet rod or bar comprises an RF oscillator (2) having a coil (1) consisting of a single turn which forms part of the tuned circuit of the oscillator. The oscillator (2) is operable to transmit electrical signal representative of coil impedance to a microprocessor (5) via a counter/ timer device (6). As billets pass through the coil, the resonant frequency of the oscillator increases by an amount equivalent to the billet cross-sectional area and the increase is recorded by the timer device (6) and passed as an input to the microprocessor for computation. A second coil and oscillator may be arranged coaxially with the path of the rod but spaced from the first coil. The coil may be hollow and coolant passed therethrough. ...

ELECTRONIC WEIGHING MACHINE

Weighing system

A weighing system includes a weighing pan 212 connected to a rigid armature 226 by a mechanical filter constraining the armature to motion along a reference axis 216 with respect to a housing and damping out transient forces along this axis resulting from the placement of objects on the pan. The mechanical filter includes spring and damping 218 elements that provide a low-pass filter, that is, one that efficiently and quickly eliminates high-frequency oscillations. In one form, the mechanical filter couples the pan to the armature. Because of this connection, friction in the mechanical filter does not result in frictional errors in the weighing measurement. In another form, a mechanical linkage couples the armature to the housing. A force transducer 10, comprising a pair of complementary opposed surfaces having a mutual separation which is related to the force across the transducer, is coupled between the armature and the housing. Coupled to the transducer is a position sensor 244 which ...

WEIGHING ELECTRICALLY

A food weight measurement device comprises a table 4 for carrying a foodstuff, a pivotable electrode plate 20 for receiving the food weight, the pivotable electrode plate being pivotably moved responsive to the food weight against a spring 23, a fixed electrode plate 18 for providing electrical signals corresponding to the food weight in by forming a capacitor with the pivotable electrode plate, and an output circuit responsive to the fixed electrode plate for outputting electrical signals representative of the food weight. The device is incorporated in a microwave oven. ...

Apparatus for the themogravimetric determination of the distillation curve for liquids

... 924,406. Analysing materials. F. PAULIK, J. PAULIK, and L. ERDY. May 5, 1961, No. 16442/61. Addition to 865,074. Class 40 (1). The liquid evaporation testing apparatus described in the parent Specification is provided with a double-walled evaporation chamber 6 evacuated between the walls. This allows the temperature of the air space outside chamber 6 to vary by 20‹ to 30‹ C. from that inside the chamber without invalidating the measurements. Chamber 6 may also be provided with an inner heat-reflecting coating.

A balance

A flat weighbridge has a load platform supported by either two one-armed or two two-armed levers arranged at least partly beneath the load platform, wherein one lever is bifurcated to define two spread apart sides and each of the sides bears a supporting device for the load platform, while the other lever bears only one supporting device for the load platform.

BALANCE

Improvements relating to weighing scales

... 368,280. Weighing-apparatus. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Toledo Scale Manufacturing Co. ; Monroe Street, Toledo, Ohio, U.S.A.) Nov. 21, 1930, No. 35151. [Class 143.] Indicatinq - mechanism.-A weighing - scale adapted to indicate electrically at a distance includes a plurality of pairs of relatively movable and inductively related members forming an electromagnetic system such that the movements of one member of a pair are reproduced as synchronous movements of one member of another pair, one member being mechanically connected to a weighing-mechanism and the other member being operatively connected with an indicating device to indicate the position of, or load on, the weighing- mechanism. A shaft 36 of the pendulous resistant 33 of a weighing-scale is provided with single-phase rotor windings 52b and is arranged axially of a cylindrical stator 52 having three-phase field windings 51. The position of the stator relative to the rotor is adjustable by screws 56, 57. The ...

SAMPLING & WEIGHING APPARATUS

Apparatus for Thermoanalytically Testing Substances.

... 1,176,709. Thermoanalytical apparatus. MAGYAR TUDOMANYOS AKADEMIA. 7 June, 1967 [7 June, 1966], No. 26396/67. Heading B1X. The gaseous decomposition products obtained by testing substances in a thermoanalyis apparatus are progressively absorbed in a suitable liquid and continuously estimated by automatic titration, the titrating equipment being connected to a mathematical differentiator, e.g. a suitable induction circuit or a transformer, so that a simultaneous continuous record is obtained both of the titration reading with time and of the rate of change of the titration reading with time. These results may be time correlated with other conventionally obtained parameters such as temperature, weight change, rate of weight change and rate of change of entholpy to obtain a profile of the course of the thermal decomposition reaction.

Method and apparatus for weighing loads

... 440,244. Weighing-apparatus. BAERMANN, M., 30, Deutscher Ring, and DYNAMIT AKT.-GES. VORM. A. NOBEL & CO., Troisdorf Bez, both in Cologne, Germany. June 5, 1935, No. 16353. Convention date, June 9, 1934. [Class 143] In a weighing-apparatus the load is balanced by the magnetic force exerted on an armature guided by adjustable rollers and free to move without any mechanical support, in the field of a permanent magnet, the position attained under load being an indication of the weight. As shown, an armature 3 situated between the poles of a permanent horse-shoe magnet 2 is guided by rollers 5 and carries a similarly guided rod 6 of non-magnetic material supporting the scale pan 8. A load on the pan depresses the armature, and a rack 9 actuates the indicating pointer 11 to indicate the weight. In order to obtain evenly divided graduations on the scale 12 the pole shoes or the armature may be rounded off or the armature may be hollowed out. An adjustable magnetic byepass may be provided on the ...

Improvements in or relating to methods and apparatus for weighing substances in sealed-off containers

... 902,718. Automatic control systems. SARTORIUS-WERKE A.G. Nov. 18, 1960 [Nov. 18, 1959], No. 39621/60. Class 38 (4). [Also in Groups XVIII and XL (b)] Apparatus for weighing substances in a sealedoff space comprises a balance with its load side divided into two mechanically unconnected pendent parts, the lower of which can be located in a sealed-off container 10 and the upper outside, and with a magnetic system for quasirigidly coupling together the upper and lower parts by magnetic attraction, controlled to maintain a constant gap between the upper and lower pendent parts by electronic means. The part of the magnetic system in the upper pendent part comprises a magnet 4, polepiece 5, core 6, indicator coil 8 and control coil 9, all in a soft iron pot-shaped member 7. The part of the magnetic system in the lower pendent part comprises a magnet 11 in a soft iron potshaped member 12 which is soldered to a copper plate 13. Mounted on the base of the pot 12 is a rod 14 which, from a hook 15, ...

LOAD TRANSDUCER

A balance

An electromagnetically compensated precision scale has a load support guided for parallel movement by a guide assembly comprising upper and lower guides defining a triangular shape in plan connected to a housing and to the load support by flexible couplings, and wherein the guides are one-piece and define a vertical joint at the triangle apex, thereby reducing inaccurate readings caused by thermal effects.

ELECTROMAGNETICALLY COMPENSATING WEIGHING OR DYNAMOMETER APPARATUS

... 1529768 Analogue to digital conversion SARTORIOUS-WERKE GmbH 21 June 1976 [24 June 1975] 25646/76 Heading H3H [Also in Division G1] Apparatus for this comprises, in the working gap of a magnet coil 12 associated with a moveable part and deflectable from a preadjusted position by a force; a compensation circuit, which comprises a position indicator 14, power amplifier 20 and coil 12 which allows a compensation current proportional to the deflection through coil 12; an A/D converter and digital indicator (both in 28); and in series store 54, with its input coupled to the A/D converter ouput, and D/A converter 56 with its output connected to coil 12, thereby to form a taring circuit in parallel with the compensation circuit except for coil 12. In the embodiment of Fig. 1, the A/D converter is connected across resistor 24. Upon operation of 60 control unit 58 causes device 52 to add the values supplied by A/D converter. The value obtained is stored in 54 and fed to D/A converter 56 to supply ...

BALANCING RECEIVER

ANLAGE ZUM RUECKHALTEN VON AUSLAUFENDEN, DIE UMWELT VERUNREINIGENDEN FLUESSIGKEITEN

MECHANISM FOR THE MEASUREMENT OF THE MASS FLOW OF A LIQUID

PROCEDURE FOR MEASURING THE LENGTH VARIATION OF A FEATHER/SPRING AND FEATHER/SPRING WITH APPROPRIATE SENSOR

DEVICE FOR WEIGHING EQUALCONSTITUTED OF BALANCING GOODS

WEIGHT SENSOR

CAPACITIVE POWER ANALYZER WITH MULTILEVEL DIELECTRIC FOR EXTENDED RANGE

WÄGEZELLE FOR AN ELECTRONIC BALANCE.

PROCEDURE FOR SHIELDING FROM ELECTROMAGNETIC BALANCES.

DEVICE FOR CONTACTLESS COUPLING A HAENGENDEN OF FLOATING ILS TO FORCE MEASURING INSTRUMENT.

WEIGHT-DETECTING DEVICE

Transport rail system with weighing means

The invention relates to a transport rail system (1) capable of detecting a weight of a rail vehicle (2). The transport rail system (1) comprises one or more rails (3a, 3b) and one or more sensors (7) for measuring a magnetic property. At least one of the sensors (7) is adapted to measure a change of a magnetic property in order to determine a weight bearing on one or more of the rails (3a, 3b), the change of the magnetic property being caused by stress exerted on the rail (3a, 3b) by said weight. Said transport rail system (1) is characterized in that one or more of the sensors (7) are adapted to measure the change of a magnetic property of the rail (3a, 3b) itself and/or that one or more sensors (7) are adapted to measure the change of a magnetic property of a supporting structure (4a, 4b) of the rail (3a, 3b). The invention allows providing a transport rail system (1) at a lower price as the complexity of such a system may be lowered.

OVEN INCLUDING WEIGHING APPARATUS

ELECTRONIC BALANCE

ELECTRIC BALANCES HAVING DIGITISATION ERROR REDUCING LOOP

A control circuit which feeds a control signal to a comparator to determine the duration of pulses of constant current to the compensating means for an electric balance having electromagnetic coil means, is modified to include an additional entirely loop, to minimise digitisation error arising from the need to cut off each current pulse just after the comparator produces a cut-off signal. The fluctuation of the display when the scale operates at high resolution in relation to the frequency of timing marking used for counting the lengths of current pulses and producing a digital indication is reduced by including an integrator arranged to be controlled by the synchroniser and to supply an error voltage combined with the control signal voltage at the input to the comparator. The mechanical inertia of the load-receiver is excluded sufficiently so that digitisation error can be cancelled out relatively rapidly.

DEVICE FOR MEASURING LOADS, ESPECIALLY TRANSIENT LOADS

A device for sensing or measuring loads, especially transient loads, such as a load imposed by a wheel of a vehicle driving over the device. The device comprising two electrically conductive plates and an intermediate dielectric and elastomeric or elastic material. A series of steel wires is embedded in a central plane of the dielectric material. Said threads are connected together electrically at one end. The wires form one capacitor electrode while another electrode is formed by the plates. The variation in the capacitance is linearly proportional to the magnitude of the applied load. The two plates are pressed towards each other in order to create a mechanical preload in the intermediate material, in order to give said linear proportionality.

METHOD AND APPARATUS FOR THE MEASUREMENT OF THE PROPERTIES OF SHEET- OR FOIL-LIKE MATERIAL OF LOW ELECTRICAL CONDUCTIVITY

... (57) This publication describes a measurement method and an apparatus for determining the moisture content of sheet- or foil-like materials (l) of high moisture content and low electrical conductivity. According to the invention, ground planes (3) are adapted on both sides of the material (1) to be measured; between each ground plane (3) and the material (l) to be measured, at least one center conductor (2) is adapted approximately parallel to the material (I) to be measured in order to form a quasi-TEM transmission line resonator; electromagnetic RF energy is fed into the quasi-TEM transmission line resonator so that the electromagnetic quasi-TEM waves propagate in the plane of the material (l) to be measured, and the resonator supports for the transverse and longitudinal waves such resonant modes whose resonant frequencies and Q's are dependent on the properties of the material (1) to be measured; the resonant frequencies and related Q's are measured, and these are used for determining ...

УСТРОЙСТВО ДЛЯ ОПРЕДЕЛЕНИЯ МАССЫ В НЕДОСТУПНОМ ДЛЯ ПРЯМОГО ИЗМЕРЕНИЯ ОБЪЕМЕ

1. Устройство для определения массы в недоступном для прямого измерения объеме, содержащее герметичную камеру, системы взаимодействующих магнитов, одна из которых связана с изменяющейся массой и установлена внутри камеры, другая - вне ее, отличающееся тем, что магнитная система, связанная с изменяющейся массой, закреплена посредством упругого элемента на неподвижной опоре, кроме того, в герметичной камере установлен стакан из немагнитного материала, закрепленный в ее крышке, с размещенной в нем второй магнитной системой, связанной со стержнем, при этом они установлены с возможностью поступательного перемещения внутри стакана и соединены со следящим приводом. 2. Устройство для определения массы в недоступном для прямого измерения объеме по п.1, отличающееся тем, что неподвижная опора закреплена на стакане из немагнитного материала. 3. Устройство для определения массы в недоступном для прямого измерения объеме по п.1, отличающееся тем, что стержень соединен со следящим приводом посредством упругого элемента. (19) RU (11) 16 553 (13) U1 (51) МПК G01G 7/00 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 2000115887/20 , 20.06.2000 (24) Дата начала отсчета срока действия патента: 20.06.2000 (46) Опубликовано: 10.01.2001 (72) Автор(ы): Абдрафиков С.Н., Мартыненко М.Е., Толкачев В.Н. (73) Патентообладатель(и): Абдрафиков Станислав Николаевич Ñòðàíèöà: 1 U 1 1 6 5 5 3 R U U 1 (57) Формула полезной модели 1. Устройство для определения массы в недоступном для прямого измерения объеме, содержащее герметичную камеру, системы взаимодействующих магнитов, одна из которых связана с изменяющейся массой и установлена внутри камеры, другая - вне ее, отличающееся тем, что магнитная система, связанная с изменяющейся массой, закреплена посредством упругого элемента на неподвижной опоре, кроме того, в герметичной камере установлен стакан из немагнитного материала, закрепленный в ее крышке, с размещенной в нем ...

ПЕРЕМНОЖИТЕЛЬ СИГНАЛОВ

Перемножитель сигналов, содержащий операционный усилитель, инвертирующий вход которого через первый масштабный резистор подсоединен к источнику первого сигнала, к которому подключен второй масштабный резистор, третий масштабный резистор, включенный в цепь отрицательной обратной связи операционного усилителя, ключ, подсоединенный к другому выводу второго масштабного резистора, генератор напряжения треугольной формы, компаратор и фильтр нижних частот, выход которого является выходом перемножителя, отличающийся тем, что общая точка второго масштабного резистора и ключа соединена с неинвертирующим входом операционного усилителя, а выход последнего соединен с входом фильтра нижних частот, второй вывод ключа подсоединен к земляной шине, выход генератора напряжения треугольной формы подключен к инвертирующему входу компаратора, а к неинвертирующему входу последнего подсоединен источник второго сигнала, выход компаратора через логический инвертор подключен к входу управления ключа. (19) RU (11) 21 827 (13) U1 (51) МПК G01G 7/00 (2000.01) G01D 1/10 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 2001122510/20 , 14.08.2001 (24) Дата начала отсчета срока действия патента: 14.08.2001 (46) Опубликовано: 20.02.2002 (72) Автор(ы): Казаков М.К., Маслова Е.И., Краснов Д.А. (73) Патентообладатель(и): Ульяновский государственный технический университет U 1 2 1 8 2 7 R U Ñòðàíèöà: 1 U 1 (57) Формула полезной модели Перемножитель сигналов, содержащий операционный усилитель, инвертирующий вход которого через первый масштабный резистор подсоединен к источнику первого сигнала, к которому подключен второй масштабный резистор, третий масштабный резистор, включенный в цепь отрицательной обратной связи операционного усилителя, ключ, подсоединенный к другому выводу второго масштабного резистора, генератор напряжения треугольной формы, компаратор и фильтр нижних частот, выход которого является выходом перемножителя, ...

Устройство для размагничивания рельсов

Полезная модель относится к устройствам магнитной обработки рельсов, рельсовых плетей и изолирующих стыков. Устройство для размагничивания рельсов содержит источник электропитания и средства для магнитной обработки, установленные на раме рельсовой тележки, снабженной устройством для ее перемещения и механизмом регулирования зазора между средствами размагничивания и рельсами, при этом тележка опирается на два колеса, установленные на одной линии друг за другом, механизм регулирования зазора между средствами размагничивания и рельсами выполнен в виде пластин, с которыми связано одно из колес тележки с возможностью изменения положения колеса по высоте относительно рамы, между колесами на раме размещены средства для магнитной обработки, выполненные в виде постоянных магнитов, закрепленных равномерно на периферии диска, установленного в одной плоскости с колесами тележки и соединенного кинематически с мотор-колесом, размещенным на раме тележки и подключенным к источнику электропитания через блок управления. Технический результат – оптимизация технологии магнитной обработки рельсов и изолирующих стыков. 4 з.п. ф-лы, 2 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 184 408 U1 (51) МПК G01G 7/00 (2006.01) H01F 13/00 (2006.01) B60L 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01G 7/00 (2006.01) (21)(22) Заявка: 2018127527, 26.07.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 24.10.2018 (56) Список документов, цитированных в отчете о поиске: RU 133532 U1, 20.10.2013. RU (45) Опубликовано: 24.10.2018 Бюл. № 30 1 8 4 4 0 8 R U (54) Устройство для размагничивания рельсов (57) Реферат: Полезная модель относится к устройствам магнитной обработки рельсов, рельсовых плетей и изолирующих стыков. Устройство для размагничивания рельсов содержит источник электропитания и средства для магнитной обработки, установленные на раме рельсовой тележки, снабженной устройством для ее перемещения и ...

WEIGHING CELL BASED ON THE PRINCIPLE OF ELECTROMAGNETIC FORCE COMPENSATION WITH OPTOELECTRONIC POSITION SENSOR

A weighing cell based on the principle of electromagnetic force compensation. A permanent magnet system is mounted on a base part and includes an air gap within which is suspended a coil that is connected to a load receiver through a force-transmitting mechanism. The coil carries an electrical compensation current when the weighing cell is in operation. An optoelectronic position sensor is also included, and its signal corresponds to the deflection of the coil from a zero position which occurs as a result of placing a load on the load receiver. A closed-loop controller regulates the compensation current in response to the sensor signal in such a way that the coil and the load receiver that is connected to it are returned to their zero position by the electromagnetic force that is acting between the coil and the permanent magnet. 1. A weighing cell based on the principle of electromagnetic force compensation , comprisinga stationary base part;a load receiver constrained to the base part in guided movement and serving to receive the weight force of a weighing load;a permanent magnet system mounted on the base part, said permanent magnet system having an air gap;a coil suspended in the air gap with guided mobility and adapted to conduct an electrical compensation current when the weighing cell is in operation;a force-transmitting mechanism connecting the load receiver to the coil;an optoelectronic position sensor comprising a light emitter and a light receiver that are mounted on the base part with an interstitial space between them and a shutter vane that traverses said interstitial space and participates in the movement of the coil, the light emitter being mounted in a centered position on the connecting line between two first fastening locations of a first carrier element that is arranged on the base part, and/or the light receiver being mounted in a centered position on the connecting line between two second fastening locations of a second carrier element that is ...

DEVICE AND METHOD FOR THE ADJUSTMENT OF AN ECCENTRIC LOAD ERROR IN A PARALLEL-GUIDING MECHANISM

A parallel-guiding mechanism () has a movable parallel leg (), a stationary parallel leg (), a first parallel-guiding member () and a second parallel-guiding member (). The parallel legs and the parallel-guiding members are connected to each other by flexure pivots, in the form of narrow material connections. There is at least one adjustment zone (). An adjustment flexure fulcrum () is arranged between a flexure pivot () and a parallel leg. The adjustment zone is connected to the first lever end () of an adjustment lever (). The adjustment flexure fulcrum forms the lever fulcrum () of the adjustment lever, which has an elastic domain with a section modulus that is smaller than a section modulus of the adjustment flexure fulcrum. 1. A parallel-guiding mechanism , comprising:a movable parallel leg;a stationary parallel leg;a first and a second parallel-guiding member, the parallel-guiding members constraining the movable parallel leg in guided movement relative to the stationary parallel leg;flexure pivots that connect the parallel legs and the parallel-guiding members to each other, the flexure pivots being in the form of narrow material connections;at least one adjustment zone, each of which has a corresponding adjustment flexure fulcrum, arranged between one of the flexure pivots and one of the parallel legs; andan adjustment lever corresponding to, and connected to, each of the adjustment zones, each adjustment lever having a first lever end with the corresponding adjustment flexure fulcrum forming a fulcrum therefor, such that an elastic sector of the adjustment lever has a section modulus which is smaller than the section modulus of the corresponding adjustment flexure fulcrum.2. The mechanism of claim 1 , wherein:at least one of the at least one adjustment zones is divided into a pair of adjacent adjustment zone parts, each of the adjacent adjustment zone parts having a corresponding adjustment flexure fulcrum, each of the adjacent adjustment zone parts ...

POSITION INDICATOR

A position indicator includes a capacitor having a capacitance that changes in correspondence to a force applied to one end part of a housing. The capacitor is configured by a pressure detecting chip that includes a first electrode and a second electrode disposed opposite to the first electrode with a predetermined distance defined therebetween to have capacitance Cv formed between the first electrode and the second electrode. The capacitance Cv changes when the force applied to the one end part of the housing is transmitted to the first electrode to thereby change a relationship (e.g., the distance) between the two electrodes. A pressure transmitting member having predetermined elasticity is disposed on the first electrode such that the force applied to the one end part of the housing is transmitted to the first electrode of the semiconductor element via the pressure transmitting member. 1. A position indicator comprising:a housing having a first end part and a second end part;a capacitor having a capacitance that changes in correspondence to a force applied to the first end part of the housing, the capacitor being configured by a semiconductor element that includes a first electrode and a second electrode disposed opposite to the first electrode at a predetermined distance from the first electrode to have a capacitance formed between the first electrode and the second electrode, wherein the capacitance changes in correspondence to a change in a relationship between the first and second electrodes caused by the force applied to the first end part of the housing and transmitted to the first electrode;a pressure transmitting member that has predetermined elasticity and transmits the force to the first electrode of the semiconductor element; anda pressing member that transmits the force applied to the first end part of the housing to the pressure transmitting member having the predetermined elasticity;wherein the force applied to the first end part of the housing is ...

WEIGHING CELL BASED ON THE PRINCIPLE OF ELECTROMAGNETIC FORCE COMPENSATION WITH OPTOELECTRONIC POSITION SENSOR

A weighing cell based on the principle of electromagnetic force compensation and having an optoelectronic position sensor that includes a light source, a light receiver, and a shutter vane. The light receiver functions to generate a position sensor signal corresponding to a deflection of the shutter vane from a zero position which occurs as a result of placing a load onto a load receiver of the weighing cell. A controller functions to regulate compensation current in response to the position sensor signal in such a way that the shutter vane and the movable parts of the weighing cell connected to the shutter vane are returned to the zero position by the electromagnetic force between a coil and permanent magnet system of the weighing cell. 1. Weighing cell based on the principle of electromagnetic force compensation , comprising:a stationary base part;a load receiver constrained to the base part with guided mobility and serving to accept the weight force of a weighing load;a permanent magnet system with an air gap;a coil that is movably suspended in the air gap and, when operating in a weighing mode, conducts a flow of a compensation current;a force-transmitting mechanical connection between the load receiver and the coil; a light source and a light receiver arranged facing each other across a space interval such that center points of the light source and the light receiver define an optical axis, and', 'a shutter vane that is solidly connected to the force-transmitting connection, the shutter vane movably arranged at a shutter distance on the optical axis between the light source and the light receiver, the shutter distance lying in a subsection of the space interval that is adjoining to the light receiver and extends over no more than one-third of the space interval;', 'wherein, the light receiver is adapted to generate a position sensor signal corresponding to a deflection of the shutter vane from a zero position which is caused by placing the load onto the load ...

FORCE-MEASURING CELL WITH A FORCE-COMPENSATING COIL

A multi-layered electromagnetic coil for a force-measuring system is based upon the principle of electromagnetic force compensation, as is a method for manufacturing the coil. The coil has a multifilar, specifically bifilar, wiring arrangement of coil wires. Preferably, the coil wires have a substantially rectangular cross-sectional profile. The cross-sectional profile of the coil wire is designed for achieving the densest possible packing of the windings in the coil can be achieved. 1. A force-measuring cell , based on the principle of electromagnetic force compensation , the cell comprising:a force-transmitting device with a parallel guiding mechanism having a stationary part and a vertically-movable part, pivotably connected to each other so that a load received by one of the parts causes relative movement of the parts;a permanent magnet system, arranged in fixed connection with one of the parts, the permanent magnet system including an air gap;a multi-layered electromagnetic coil, connected to the other part and arranged for movement in the air gap, the coil comprising an at least bifilar arrangement wound from a wire combination that comprises a first and a second coil wire and an insulating coating that holds the respective coil wires together in fixed position while electrically isolating the respective coil wires from each other, each of the first and second coil wires having a rectangular cross-sectional profile; anda force compensation circuit, comprising a device that measures the position of the part connected to the electromagnetic coil and, based on the position, applies a compensation current to one of the coil wires so that the coil is held in the same position or returned to the same position after a change in the load occurs.2. The cell of claim 1 , wherein:the cross-sectional profile is a rounded rectangular shape, with the shorter sides being formed in a biconvex shape and the longer sides being flattened.3. The cell of claim 1 , wherein:the ...

WINDSHIELD FOR A PRECISION BALANCE

A precision balance provided with a windshield having at least one wall element (), which is provided with an electrically conductive coating (), and having an electrical connection () for the coating. An electrical test device () is additionally provided, which is integrated into the precision balance and with which it is possible to check whether the coating () is connected to the electrical connection (). 1. A precision balance having a windshield which comprises at least one wall element provided with an electrically conductive coating and comprising an electrical connector for the coating , an electrical testing device which is integrated into the precision balance and which is configured to test whether the coating is connected to the electrical connector.2. The precision balance as claimed in claim 1 , comprising a plurality of wall elements claim 1 , wherein the coatings of the wall elements are electrically connected in series.3. The precision balance as claimed in claim 1 , comprising a plurality of wall elements claim 1 , wherein the coatings of the wall elements are electrically connected in parallel.4. The precision balance as claimed in claim 1 , wherein claim 1 , in the absence of contacting of the coating of at least one wall element claim 1 , the electrical testing device emits a signal to at least one of: output an optical warning signal claim 1 , output an acoustic warning signal interrupt a subsidiary process of the precision balance.5. The precision balance as claimed in claim 1 , wherein the testing device is configured to determine an electrical resistance between at least one test contact claim 1 , which contacts the coating claim 1 , and the electrical connector.6. The precision balance as claimed in claim 5 , wherein the at least one wall element is displaceable between a closed position and an open position claim 5 , and at least one of the testing contacts is arranged to engage with the electrically conductive coating only in the closed ...

MULTICAPACITOR FORCE/MOMENT SENSOR ARRAYS

A multicapacitor sensor system facilitates the measurement of applied shear and moment forces. In one disclosed configuration, moments may be detectable in x, y and z directions, resulting in a full, 3-axis load cell with 6 degrees of freedom. The system may further include electrical circuitry to generate electrical drive pulses, sense amplify and buffer the voltages induced on the sense plates, and compute applied forces. An array of multicapacitor sensors that can be addressed individually without cross-talk and globally produce a map of forces and moments applied to the whole array. A MEMS implementation enables in vivo application. 1. A multicapacitor sensor system , comprising:a drive plate or plates in the case of an array defining an electrically conductive pattern having a center point, the pattern including at least two orthogonal electrodes and at least one electrode extending radially outwardly from the center point;an electrically conductive sensor pattern including at least one electrode parallel to each of the orthogonal electrodes and at least two electrodes parallel to each electrode extending radially outwardly from the center point; and a) Forces applied to the system in the x and y directions may be detected by changes in the capacitance between the orthogonal electrodes of the drive plate pattern and the electrodes of the sense plate pattern parallel to the orthogonal electrodes, and', 'b) Moments applied to the system around the z direction may be detected by changes in the capacitance between the electrode extending radially outwardly from the center point of the drive plate pattern and the electrodes of the sense plate pattern parallel to the electrode extending radially outwardly., 'a compressible, elastic dielectric material separating the drive and sensor patterns, whereby the drive and sensor patterns and dielectric define a two-dimensional plane with x and y directions and a z direction perpendicular to the plane, and2. The ...

FORCE DETECTING MAT WITH MULTIPLE SENSOR TYPES

A flexible force or pressure sensing mat includes a first sheet of electrically conductive first paths, a second sheet of electrically conductive second paths, and a sensing layer positioned between the first and second sheets. The first and second conductive paths are oriented transversely to each other, and the locations of their intersections define individual sensing areas or sensors. The sensing layer is made from materials that have first and second electrical characteristics—such as capacitance and resistance—that vary in response to physical forces exerted thereon. A controller repetitively measures the multiple electrical characteristics of each sensor in order to produce a near real time pressure distribution map of the forces sensed by the mat. The mat can be used on a patient support surface—such as a bed, cot, stretcher, recliner, operating table, etc.—to monitor and help reduce the likelihood of a patient developing pressure ulcers. 1. A flexible force sensing mat comprising:a first sheet having a plurality of first conductive paths supported thereon;a layer of sensing material positioned in contact with said first conductive paths, said layer of sensing material having first and second electrical characteristics that vary in response to physical forces exerted thereon;a second sheet positioned in contact with said layer of sensing material on a side of said layer of sensing material opposite said first sheet, said second sheet having a plurality of second conductive paths supported thereon, said plurality of second conductive paths being transverse to said plurality of first conductive paths; anda controller adapted to detect changes in both said first and second electrical characteristics when force is applied to said force sensing mat.2. The mat of wherein said first sheet claim 1 , said second sheet claim 1 , and said layer of sensing material are all elastically stretchable.3. The mat of wherein said first and second sheets are made of nylon.4. ...

Vehicle occupant classification systems and methods

Techniques are disclosed for systems and methods to detect and/or classify a vehicle occupant, such as a passenger seated within the cockpit of a vehicle. An occupant classification system includes an occupant weight sensor, an occupant presence sensor, and a logic device configured to communicate with the occupant weight sensor and the occupant presence sensor. The logic device is configured to receive occupant weight sensor signals from the occupant weight sensor and occupant presence sensor signals from the occupant presence sensor, determine an estimated occupant weight and an occupant presence response based, at least in part, on the occupant weight sensor signals and the occupant presence sensor signals, and determine an occupant classification status corresponding to the passenger seat based, at least in part, on the estimated occupant weight and/or the occupant presence response.

DIAGNOSTIC METHOD FOR A WEIGHING CELL

A force-measuring device () with a parallelogram linkage has a measurement transducer coupled to it. A coil () of the transducer has guided mobility in a magnet system () and can carry an electric current (). A position sensor () detects the deflection of the coil () from a balanced position relative to the magnet system when a load is placed on the force-measuring device. The electric current () flowing through the coil (), by way of the interaction between the coil and the magnet system, returns the coil and the movable parallel leg to the balanced position. A system-characterizing means () is established in a processor unit (). The system-characterizing means and an unchangeable system reference means () are compared to determine the functionality of the device. The functionality is verified by the magnitudes of the electric current and the deflection of the coil from its balanced position. 1. A method for verifying a functionality of a force-measuring device which works according to the principle of electromagnetic force compensation , the force measuring device comprising a stationary parallel leg , a movable parallel leg which receives the load of a weighing object , two parallel guides that connect the stationary and movable parallel legs , a measurement transducer that is coupled to the parallel leg through a force-transmitting connection and comprises a coil that is arranged with guided mobility in a magnet system and that can carry an electric current , a position sensor , arranged to detect a deflection of the coil from a balanced position relative to the magnet system , the deflection occurring as a result of placing a load on the movable parallel leg , such that an electric current flows through the coil by way of the electromagnetic force acting between the coil and the magnet system to return to , or to maintain in , the balanced position the coil and the movable parallel leg , which is connected to either the coil or the magnet system , the method ...

PRESSURE SENSOR AND DISPLAY DEVICE INCLUDING THE SAME

A pressure sensor including: a first conductor; a second conductor spaced apart from the first conductor, and positioned so as to form a capacitance with the first conductor; and an elastic member positioned between the first conductor and the second conductor, in which the capacitance varies according to a pressure applied to one or more of the first conductor and the second conductor, and the first conductor has a shape different from that of the second conductor. 1. A pressure sensor , comprising:a first conductor;a second conductor spaced apart from the first conductor, and positioned so as to form a capacitance with the first conductor; andan elastic member positioned between the first conductor and the second conductor,wherein the capacitance varies according to a pressure applied to one or more of the first conductor and the second conductor, andwherein the first conductor has a shape different from that of the second conductor.2. The pressure sensor of claim 1 , wherein the first conductor includes:a plurality of loop-type conductive lines; anda plurality of connection conductive lines connected to the loop-type conductive lines.3. The pressure sensor of claim 2 , wherein the loop-type conductive lines include:a first loop-type conductive line;a second loop-type conductive line positioned outside the first loop-type conductive line;a third loop-type conductive line positioned outside the second loop-type conductive line; anda fourth loop-type conductive line positioned outside the third loop-type conductive line.4. The pressure sensor of claim 3 , wherein the connection conductive lines extend from the first loop-type conductive line to the fourth loop-type conductive line.5. The pressure sensor of claim 4 , wherein the first conductor further includes auxiliary conductive lines extending from the second loop-type conductive line to the fourth loop-type conductive line.6. The pressure sensor of claim 4 , wherein the first conductor further includes a ...

Monitor

An animal monitor comprising a microcontroller; at least one three-axis accelerometer; an energy source; a charger; and a communications system, including a wireless transmitter and receiver.

Electromagnetically Force-Compensating Force-Measuring Apparatus

An electromagnetically force-compensating force-measuring apparatus () that includes a force dependent support coil () and an integrating analog/digital converter (′) that converts the coil current (I) into a digital output signal. A current/voltage converter () is connected downstream of the support coil (), the output of the current/voltage converter being connected to a measurement voltage input () of the analog/digital converter (′) and to the input of a voltage amplifier (). The resistance value of a first heating resistor (R) is equal to the resistance value of the support coil (), the resistance value of a second heating resistor (R) is equal to the conversion factor (R) of the current/voltage converter () and the gain factor of a voltage amplifier () is equal to the ratio of the resistance value of the first heating resistor to the resistance value of the second heating resistor. 2. The force-measuring apparatus as claimed in claim 1 ,whereinthe current/voltage converter comprises a converter resistor connected in series between the support coil and the input of the A/D converter, and a difference amplifier connected in parallel to the current/voltage converter.3. The force-measuring apparatus as claimed in claim 1 ,whereinthe inverter is a component of a power compensation circuit within the A/D converter. This is a Continuation of International Application PCT/EP2013/000838, with an international filing date of Mar. 20, 2013, which in turn claims priority to German Patent Application 10 2012 103 037.5, filed Apr. 10, 2012. The entire disclosures of both these related applications are incorporated into the present application by reference.The invention relates to an electromagnetically force-compensating force-measuring apparatus, comprisingDigital force-measuring devices operating according to the principle of electromagnetic force compensation, for example digital balances, have long been known. EP 2 253 944 A1 discloses a digital balance of this type. ...

ELECTRONIC DEVICE FOR DETECTING THE WEIGHT OF CAPSULES FOR PHARMACEUTICAL PRODUCTS

An electronic device for detecting the weight of a capsule for a pharmaceutical product is provided with: a plurality of detection electrodes, which face a respective one of a plurality of sectors into which the capsule is divided in a main extension direction thereof, each one of the detection electrodes forming a respective detection capacitor with a common plate defined by a capsule-holding element which holds the capsule; and an electronic circuit having a plurality of detection stages, each operatively coupled to a respective one of the detection electrodes so as to detect, in an independent and exclusive manner, a capacitive variation of the respective detection capacitor and to generate a respective output quantity, which is a function of the capacitive variation and indicative of the weight of the respective sector of the capsule. 1101. An electronic device () for detecting the weight of a capsule () for a pharmaceutical product , comprising:{'sub': 1', '2', 'n', '1', '2', 'n', 't1', 't2', 'tn, 'b': 1', '5', '2', '1, 'i': 'b', 'a plurality of detection electrodes (S, S, . . . , S), which are designed to face a respective one of a plurality of sectors into which said capsule () is divided in a main extension direction thereof, each one of said detection electrodes (S, S, . . . , S) being designed to form a respective detection capacitor (C, C, . . . , C) with a common plate () defined by a capsule-holding element () designed to hold said capsule (); and'}{'b': 12', '14', '1, 'sub': 1', '2', 'n', '1', '2', 'n', 't1', 't2', 'tn', 'out1', 'out2', 'outn', '1', '2', 'n, 'an electronic circuit () including a plurality of detection stages (), each operatively coupled to a respective one of said detection electrodes (S, S, . . . , S) and configured to detect, in an independent and exclusive manner, a capacitive variation (ΔC, ΔC, . . . , ΔC) of the respective detection capacitor (C, C, . . . , C) and to generate a respective output quantity (V, V, . . . , V), which ...

FINGER PRINT AND PRESSURE DUAL SENSOR AND METHOD OF MANUFACTURING THE SAME

A finger print and pressure dual sensor includes first electrodes disposed on a substrate and extending in a first direction, and source electrodes and drain electrodes disposed to face each other in the first direction; channel regions disposed on the substrate and electrically connected to the source electrode and drain electrode; a first dielectric layer disposed on the substrate, covering the first electrodes, the source electrodes, and the drain electrodes and having first openings for exposing the channel region; second electrodes disposed on the first dielectric layer and extending in a second direction; a second dielectric layer disposed on the first dielectric layer, covering the second electrodes and having second openings for exposing the channel region; gate electrodes disposed on the second dielectric layer, extending in the second direction and disposed on the channel region; and a cover layer disposed on the second dielectric layer and covering the gate electrodes. 1. A finger print and pressure dual sensor comprising:first electrodes disposed on a substrate and extending in a first direction, and source electrodes and drain electrodes disposed to face each other in the first direction;channel regions disposed on the substrate and electrically connected to the corresponding source electrode and drain electrode;a first dielectric layer disposed on the substrate, covering the first electrodes, the source electrodes, and the drain electrodes and having first openings for exposing the channel region;second electrodes disposed on the first dielectric layer and extending in a second direction;a second dielectric layer disposed on the first dielectric layer, covering the second electrodes and having second openings for exposing the channel region;gate electrodes disposed on the second dielectric layer, extending in the second direction and disposed on the channel region so as to correspond to the channel region; anda cover layer disposed on the second ...

SENSOR INCLUDING ELECTRICAL TRANSMISSION-LINE PARAMETER THAT CHANGES RESPONSIVE TO VEHICULAR LOAD

An apparatus includes a sensor assembly. The sensor assembly includes a transmission-line assembly having an electrical transmission-line parameter configured to change, at least in part, in response to reception, at least in part, of a vehicular load of a moving vehicle moving relative to a vehicular roadway to the transmission-line assembly positionable, at least in part, relative to the vehicular roadway. 1a force receiving element with a first surface for receiving a force and a second flat surface;a deformable element connected to the force receiving element and a flat strip; anda gap defined by the distance between the second flat surface and the flat strip;wherein, when a force is applied to the first surface, the gap between the second surface and the flat strip decreases.. A sensor, comprising: This application is a Continuation of U.S. patent application Ser. No. 15/839,432, filed Dec. 12, 2017, which is a Continuation of U.S. patent application Ser. No. 14/196,765, filed Mar. 4, 2014, now U.S. Pat. No. 9,880,045, which is a Continuation-in-Part of U.S. patent application Ser. No. 13/835,797, filed Mar. 15, 2013, which is now U.S. Pat. No. 9,429,463, which claims priority from U.S. Provisional Application No. 61/772,138, filed Mar. 4, 2013, the entire content of which is expressly incorporated hereinto by reference.The embodiments disclosed herein relate generally to intelligent transportation systems.Intelligent transportation systems may involve data collection, toll collection, vehicle classification, weigh in motion (WIM), and other traffic monitoring or traffic management systems.For example, WIM systems are used to detect and weigh vehicles in motion in order to enhance the operation of road systems in a safer and more efficient manner.A WIM system uses one or more sensors to obtain information about a vehicle as it is sensed by the sensor, typically as the vehicle moves over the sensor. Some information may be measured directly from a sensor, and ...

Functional Case for Portable Electronic Device

A functional case for a portable electronic device. There is a case that is adapted to be coupled to the portable electronic device, one or more sensors built into the case, wherein the sensors are configured to detect the weight of an item placed onto the case and wherein the sensors output sensor data, and a processor that is functionally coupled to the sensors, for receiving sensor output data and determining the weight of the item, and transmitting the weight to a display associated with the case or associated with another device. 1. A functional case for a portable electronic device , comprising:a case that is adapted to be coupled to the portable electronic device;one or more sensors built into the case, wherein the sensors are configured to detect the weight of an item placed onto the case and wherein the sensors output sensor data; anda processor that is functionally coupled to the sensors, for receiving sensor output data and determining the weight of the item, and transmitting the weight to a display associated with the case or associated with another device.2. The functional case of claim 1 , wherein the case is constructed and arranged to hold an insertable module.3. The functional case of claim 2 , wherein the insertable module comprises a breathometer or a thermometer or a mechanical device.4. The functional case of claim 1 , wherein the sensors comprise piezoelectric sensors.5. The functional case of claim 1 , wherein the sensors comprise strain-based weighing sensors.6. The functional case of claim 1 , wherein the case has four corners and there are four weight sensors claim 1 , one built into each corner of the case.7. The functional case of claim 1 , wherein the portable electronic device comprises an app that is enabled to turn on the sensors via wireless commands sent to the processor of the case.8. The functional case of claim 7 , wherein the app automatically commands the portable electronic device to disable the sending or reception of ...

Measuring device for a capsule filler machine for pharmaceutical capsules

A measuring device for a capsule filler machine for pharmaceutical capsules comprising at least one block, provided with a plurality of seats, suitable to house a plurality of bottoms of capsules to be filled is provided. The block is provided with capacitive electronic devices, which are suited to detect parameters concerning the tare of each bottom, parameters concerning the quantities and the types of the products inserted into each bottom, and parameters concerning the filling/emptying of the seats, so as to control, in particular, the filling steps carried out to fill the capsule bottoms with the products.

Force-Sensitive Fingerprint Sensing Input

An object can depress an input device, such as, for example, a function button in an electronic device. A resistive element having a mechanically resistive force can be disposed to resist the depression or movement of the input device. One or more electrodes can be disposed to provide a measure of capacitance based on the depression of the input device. A shield can be disposed to reduce the parasitic capacitance between the one or more electrodes and the object. The electronic device can include a fingerprint sensor operably connected to at least one of the one or more electrodes. 1. An electronic device , comprising:an input device depressible in response to an object;a resistive element having a mechanically resistive force, the resistive element disposed to resist depression of the input device; andone or more electrodes disposed to provide a measure of capacitance based on a depression of the input device.2. The electronic device as in claim 1 , wherein the input device comprises a function button.3. The electronic device as in claim 1 , further comprising a shield that reduces parasitic capacitance between the one or more electrodes and the object.4. The electronic device as in claim 1 , wherein the resistive element comprises an elastomeric substance disposed to resist depression of the input device.5. The electronic device as in claim 1 , further comprising a fingerprint sensor operably connected to at least one electrode.6. The electronic device as in claim 2 , wherein the function button comprises a stack of layers claim 2 , the stack of layers including a lens disposed over an insulator.7. The electronic device as in claim 6 , wherein a shield is included in the stack of layers and is disposed between the lens and the insulator.8. The electronic device as in claim 7 , wherein the one or more electrodes include a first electrode disposed on a first side of the resistive element and a second electrode disposed on a second side of the resistive element claim ...

FORCE-SENSING CAPACITOR ELEMENTS, DEFORMABLE MEMBRANES AND ELECTRONIC DEVICES FABRICATED THEREFROM

Force-sensing capacitor elements and deformable membranes useful in electronic devices that include touch screen displays or other touch sensors. The deformable membranes, generally, include a first, second, and third layers with a first arrangement of a plurality of first structures interposed between the first and third layers and a second arrangement of one or more second structures interposed between the second and third layers. Electrodes may be included proximate to or in contact with one or more of the major surfaces of the first, second, and third layers or embedded within one or more of the second and third layers of the deformable membranes, yielding force-sensing capacitor elements. The electrodes proximate to or in contact with the one or more of the major surfaces of the first and second layers or embedded within one or more of the second and third layers may be one or more plurality of electrodes. 1. A deformable membrane for a force-sensing capacitor element comprising:a first layer having first and second major surfaces;a second layer having first and major second surfaces;a third layer having first and second major surfaces interposed between the second major surface of the first layer and the second major surface of the second layer;a first arrangement comprising a plurality of first structures, with corresponding first void regions, interposed between the second major surface of the first layer and the first major surface of the third layer, wherein each first structure has a first surface facing the second major surface of the first layer and a second surface facing the first major surface of the third layer, and wherein the first structures of the first arrangement have corresponding imaginary axes aligned perpendicular to and running through the centroids of their first surfaces;a second arrangement comprising one or more second structures, with corresponding second void regions, interposed between the second major surface of the second layer ...

FORCE SENSOR

A cylindrical annular detector is disposed at the periphery of the columnar body fixed at a central part of the upper surface of a supporting substrate. A space between the columnar body and the annular detector is connected by a thin flexible connection member (diaphrapm). A washer-shaped insulation substrate is disposed on the upper surface of the supporting substrate, individual fixed electrodes are formed on the upper surface thereof, and they constitute capacitive elements together with a displacement electrode which is composed of the lower surface of the annular detector. Upon exertion of an external force on the annular detector, the flexible connection member deflects to cause displacement, which is detected as change in capacitance value of the capacitive element. 1. A force sensor comprising:a supporting substrate;an annular detector which is disposed above the supporting substrate;a columnar body which extends upward from a central part of an upper surface of the supporting substrate;a flexible connection member which connects the columnar body with the annular detector;detection elements, each of which outputs a measurement value according to displacement of the annular detector with respect to the supporting substrate; anda detection circuit which detects an exerted external force on the basis of the measurement value;the force sensor having such functions that when an external force is exerted on the annular detector in a state that the supporting substrate is fixed, the flexible connection member undergoes deflection, by which the annular detector gives displacement to the supporting substrate and the detection circuit detects the external force on the basis of change in the measurement value resulting from the displacement, andthe force sensor further comprising:an external protrusion portion which protrudes further outside from an outer circumferential part of the annular detector; anda displacement control portion which is fixed at a position ...

Force transducer forming a capacitive load cell

A force transducer, in particular a load cell, includes a spring body that deforms when loaded with a force or load to be measured. Two support parts, which are separated by a gap, are moved out of a position of rest. A capacitive displacement detector is used to detect the relative movement of the support parts, where the capacitor includes two electrode combs that are each held on one of the support parts and includes a multiplicity of electrode fingers. The electrode combs are configured designed and mounted on the two support parts such that the electrode fingers of the one electrode comb pass into the finger interspaces of the other electrode comb when the spring body is loaded so that the force transducer is resistant to overloading.

VISCO-POROELASTIC ELASTOMER-BASED CAPACITOR TYPE TACTILE SENSOR

A visco-poroelastic elastomer-based capacitor type tactile sensor includes a first electrode, an active layer formed on a top surface of the first electrode and made of a visco-poroelastic elastomer, a second electrode formed on a top surface of the active layer, and a controller configured to provide an electric field generated orthogonal to an extension direction of the first electrode and the second electrode between the first electrode and the second electrode. In proportion to an external pressure applied to the tactile sensor, a concentration of effective ions present at the interfaces between the active layer and the first and second electrodes is increased. 1. A visco-poroelastic elastomer-based capacitor type tactile sensor , comprising:a first electrode;an active layer formed on a top surface of the first electrode and made of a visco-poroelastic elastomer;a second electrode formed on a top surface of the active layer; anda controller configured to provide an electric field generated orthogonal to an extension direction of the first electrode and the second electrode between the first electrode and the second electrode,wherein in proportion to an external pressure applied to the tactile sensor, a concentration of effective ions present at the interfaces between the active layer and the first and second electrodes is increased.2. The visco-poroelastic elastomer-based capacitor type tactile sensor of claim 1 ,wherein the active layer is formed including an elastomer with viscoelastic behavior and an ionic liquid with poroelastic behavior caused by fluidity and includes therein segments which partition the inside of the active layer and isolate ions at a predetermined concentration, and a concentration of effective ions on the surface of the active layer applied with pressure is adjusted by an external pressure.3. The visco-poroelastic elastomer-based capacitor type tactile sensor of claim 2 ,wherein when the partitioned areas are deformed by the external ...

FOLDABLE SCALE

The miniaturized pocket sized foldable scale is of a thin material/substrate, and a utilization of the same. The scale has an embedded/plugged in electronic circuit with WI-FI capability, and tactile sensors, which change of conductance when put under pressure/load is a linear function converted into weight. 1. A pocket size foldable scale , having at least one of embedded miniature electronics , and plug in miniature electronics , comprising:at least one flexible thin substrate foldable tactile sensor, having a thickness in the range of 0.21 mm to 5 mm, outputting signals which are linear to weight due to at least one of a change of conductance, and resistance, when an object is weighed on said scale;said miniaturized electronic scale circuit comprising at least the following components an amplifier connected to said tactile sensor, which receives and amplifies said output sensor signals, said amplifier being connected to an analog to digital converter, which is connected to at least one of a WI-FI, near field communication, and Bluetooth transmitter, being able to transmit obtained scale signals to a device with a receiver for said scale signals, said scale electronics comprising a miniaturized battery powering said components.220. A scale according to claim 1 , wherein said scale is embedded in a thin plastic cover () being washable for further use or disposable after utilization.3. A scale according to claim 1 , wherein said scale is embedded in a disposable material other than plastic claim 1 , and to be disposed after utilization.4. A utilization of a pocket size foldable scale claim 1 , having at least one of embedded miniature electronics claim 1 , and plug in miniature electronics claim 1 , to guide persons to eat food in a regulated sound manner comprising:a flexible thin substrate foldable tactile sensor having a thickness in the range of 0.3 mm to 5 mm, outputting signals which are linear to weight due to at least one of a change of conductance, and ...

ELECTRONIC BALANCE

Provided is an electronic balance of electromagnetic force type including a weight automatic loading mechanism which can place and remove a weight by its own mechanism without use of either an external balance weight or a built-in balance weight. An electronic balance of electromagnetic force type is provided with a beam equilibrium setting unit that sets two or more equilibrium states of the beam position detecting unit. By making conversion ratios of upper and lower light receiving circuits nonequivalent, an imaginary weight is generated by utilizing the operating principle of the electromagnetic balance of electromagnetic force type. 14-. (canceled)6. An electronic balance of electromagnetic force type , comprising:a Roberval mechanism that guides weight transmission from a weighing pan;a beam that is swayed while being guided by the Roberval mechanism;a beam position detecting unit that comprises a movable electrode, fixed at a tip end of the beam, movable upward and downward in interlock with the beam; and immovable electrodes arranged in upper and lower sides of the movable electrode and each fixed; anda beam equilibrium setting unit that sets the beam position detecting unit in two or more equilibrium states by changing a conversion coefficient of one capacitance/voltage converter for detecting a capacitance between the upper immovable electrode and the movable electrode into a value that is different from a conversion coefficient of the other capacitance/voltage converter for detecting a capacitance between the lower immovable electrode and the movable electrode.7. The electronic balance of electromagnetic force type according to claim 5 , whereinthe electronic balance further comprises a performance confirming means that checks repetition performance of the balance by changing the beam position detecting unit alternately between two states among the two or more equilibrium states.8. The electronic balance of electromagnetic force type according to claim 5 , ...

RESISTIVE-CAPACITIVE DEFORMATION SENSOR

A deformation sensing apparatus comprises an elastic substrate, a first strain-gauge element formed on a first surface of the elastic substrate, and configured to output a first signal in response to a strain applied in a first direction, and a second strain-gauge element formed on a second surface of the elastic substrate opposite to the first surface, and configured to output a second signal in response to a strain applied in the same first direction. 1. A deformation sensing apparatus comprising:an elastic substrate;a first strain-gauge element formed on a first surface of the elastic substrate, and configured to output a first signal in response to a strain applied in a first direction;a second strain-gauge element formed on a second surface of the elastic substrate opposite to the first surface, and configured to output a second signal in response to a strain applied in the same first direction.2. The deformation sensing apparatus of claim 1 , wherein:the first strain-gauge element has two distinct terminals, a first terminal and a second terminal;the first signal is measurable across the first and second terminals of the first strain-gauge element;the second strain-gauge element has two distinct terminals, a third terminal and a fourth terminal; andthe second signal is measurable across the third and fourth terminals of the second strain-gauge element.3. The deformation sensing apparatus of claim 1 , wherein:the elastic substrate comprises a flexible, electrically-insulating dielectric material; andthe deformation sensing apparatus is configured to output a third signal responsive to an applied deformation, the third signal being measurable between a terminal of the first strain-gauge element and a terminal of the second strain-gauge element.4. The deformation sensing apparatus of claim 3 , further comprising:a measurement circuit configured to measure the first signal from the first strain-gauge element and the second signal from the second strain-gauge ...

PIEZOCAPACITIVE TYPE PRESSURE SENSOR WITH POROUS DIELECTRIC LAYER

According to the present disclosure, there is provided a piezocapacitive type pressure sensor including a first electrode layer, a second electrode layer spaced apart from the first electrode layer, and a dielectric layer formed between the first electrode layer and the second electrode layer, wherein the dielectric layer is made of a porous elastomer. 1. A piezocapacitive type pressure sensor , comprising:a first electrode layer;a second electrode layer spaced apart from the first electrode layer; anda dielectric layer formed between the first electrode layer and the second electrode layer,wherein the dielectric layer is made of a porous elastomer.2. The piezocapacitive type pressure sensor according to claim 1 , wherein the first electrode layer has a first base made of a flexible electrically insulating material claim 1 , and a first electrode pattern made of an electrically conducting material formed on one surface of the first base claim 1 , andthe second electrode layer has a second base made of a flexible electrically insulating material, and a second electrode pattern made of an electrically conducting material formed on one surface of the second base, facing the first electrode pattern.3. The piezocapacitive type pressure sensor according to claim 2 , wherein the first base and the second base are made of an elastomer.4. The piezocapacitive type pressure sensor according to claim 2 , wherein the first electrode pattern and the second electrode pattern are made up of carbon nanotube bundles as a conducting material.5. The piezocapacitive type pressure sensor according to claim 1 , wherein the dielectric layer has porosity of from 60% to 80%. This application claims priority under 35 U.S.C. §119 to Korean Patent Application No. 10-2015-0124360, filed on Sep. 2, 2015, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety.This invention has been published in the 17Korea MEMS Conference ( ...

Warehouse System Capable of Detecting Load Quantity Variations by Using Gravity Sensors

A warehouse system includes N carriers, N gravity sensor sets, a scale device, and a computer device. Each carrier is used for disposing at least one load. Each gravity sensor set is disposed below each carrier for detecting a loading weight of each carrier. The scale device is disposed below the N carriers and the N gravity sensor sets for detecting a total weight of the N carriers, the N gravity sensor sets, and all loads. The computer device is coupled to the N gravity sensor sets and the scale device for generating load quantity variations by using the N gravity sensor sets and the scale device. 1. A warehouse system comprising:N carriers, each carrier configured to dispose at least one load;N gravity sensor sets, each gravity sensor set disposed below the each carrier and configured to detect a loading weight of the each carrier;a scale device disposed below the N carriers and the N gravity sensor sets and configured to detect a total weight of the N carriers, the N gravity sensor sets, and all loads; anda computer device coupled to the N gravity sensor sets and the scale device and configured to generate load quantity variations;wherein when load quantities of M carriers of the N carriers are changed, M gravity sensor sets disposed below the M carriers generate M weight change signals, the computer device generates load quantity variations of the M carriers according to the M weight change signals and a variation of the total weight, M and N are two positive integers and N≥M.2. The warehouse system of claim 1 , wherein the each gravity sensor set comprises at least two gravity sensors claim 1 , and the at least two gravity sensors are uniformly distributed below a lower surface of the each carrier.3. The warehouse system of claim 1 , wherein the computer device comprises:a memory configured to save a weight of single load disposed on the each carrier; anda processor coupled to the memory and configured to generate the load quantity variations of the M carriers ...

GRIP SENSOR

Embodiments of the present invention provide robust capacitive grip sensors that may be used in a variety of applications, including single-handed and double-handed grips, such as but not limited to barbells. Apparatus as disclosed herein and efficiently measure the presence of a human grip without requiring deformation of a gripped surface area. 12.-. (canceled)3. A grip sensor as in claim 11 , wherein the plurality of first processors is included in a processor hub.4. A grip sensor as in claim 3 , wherein the processor hub includes a battery.5. A grip sensor as in claim 3 , wherein the processor hub is electrically coupled to a source of power.610.-. (canceled)11. A grip sensor useable on an elongated substrate having first and second ends claim 3 , the grip sensor comprising:an inner electrically non-conductive layer disposed on the substrate;a plurality of first strands of electrically conductive material disposed, so as to be spaced apart, on the inner electrically non-conductive layer adjacent to the first end of the substrate;a plurality of second strands of electrically conductive material disposed, so as to be spaced apart, on the inner electrically non-conductive layer adjacent to the second end of the substrate;an outer electrically non-conductive layer disposed on the inner electrically non-conductive layer with the plurality of first strands of electrically conductive material and the plurality of second strands of electrically conductive material being located between the inner electrically non-conductive layer and the outer electrically non-conductive layer;a plurality of first processors, each associated with one of the first strands of electrically conductive material, the plurality of first processors each configured to detect capacitance in the respective first strand of electrically conductive material and compare the detected capacitance against a predetermined threshold to determine an above or below state of capacitance, representable in ...

Cart Weight Sensing System

Described in detail herein are a system and an apparatus for detecting weight in cart. A display and reader coupled to a cart can scan and decode a identifier of a machine-readable element associated with a physical object. The cart can transmit the identifier to a computing system the computing system can query the database to retrieve a stored weight of the physical object. The physical object be placed in the basket of the cart and a transducer coupled to the cart and determine the weight of the physical object of the cart. The computing system can determine physical object placed in the basket is the same as the last scanned physical object in response to determining the weight of most recently scanned physical object is within a predetermined threshold of the weight of the physical object in the basket. 1. A weight sensing system , the system comprising ,a first cart, the first cart including a frame, a basket supported by the frame, two front casters supporting the frame, and two rear casters supporting the frame, each of the front two caster and the rear two caster including a housing configured to be coupled to the frame and a wheel rotatable coupled to the housing; and a battery configured to power the electric circuit;', 'a plurality of transducers, at least one of the plurality of transducers being disposed in the housing of each of the two front caster and the two rear caster, the plurality of transducers being configured to output electrical signals in response to pressure;', 'a reader mounted on the frame or the basket, the reader being configured to read machine-readable elements associated with physical objects being placed on the first cart; and', 'a controller operatively coupled to the battery, the plurality of transducers, and the reader, the controller being configured to control the reader to read the machine-readable elements, receive the electrical signals output by the plurality of transducers; and, 'an electric circuit distributed ...

POT MAGNET FOR A MOVING COIL ARRANGEMENT IN AN ELECTRONIC BALANCE

A pot magnet () for a moving coil () of an electronic balance operating using the electromagnetic compensation principle includes: a pot base () and a pot wall () rising vertically from the pot base, and a permanent magnet structure () disposed within the pot wall and having an annular gap thereto, which structure has a permanent magnet body () arranged on the pot base side and a pole plate () connected to the surface thereof facing away from the pot base side. The pole plate is fixed by a rigid mechanical connection independent of the permanent magnet body to the pot base at a predetermined distance therefrom and the permanent magnet body is bonded to the pole plate on a surface facing the pot base without contacting the pot base. 1. Pot magnet for a moving coil arrangement of an electronic balance operating on an electromagnetic compensation principle , said pot magnet comprising:a pot base and a pot wall rising perpendicularly from the pot base, anda permanent magnet structure, disposed within and defining an annular gap to the pot wall,wherein the permanent magnet structure comprises a permanent magnet body arranged on a side of the structure that faces the pot base, and a pole plate connected to a surface of the permanent magnet body that faces away from the pot base,wherein the pole plate is fixed by a rigid mechanical connection, independent of the permanent magnet body, to the pot base at a predetermined distance from the pot base, andwherein the permanent magnet body is glued to the pole plate on a surface of the pole plate that faces the pot base without contact to the pot base.2. Pot magnet as claimed in claim 1 ,wherein the mechanical connection between the pole plate and the pot base comprises a bolt passing through the permanent magnet body without contact to the permanent magnet body and having a first end connected to the pot base and having a second end connected to the pole plate.3. Pot magnet as claimed in claim 2 ,wherein the bolt is formed as a ...

TACTILE SENSOR

A tactile sensor includes a first substrate including a plurality of first electrodes, a second substrate including a plurality of second electrodes corresponding to the plurality of first electrodes, and a dielectric substance disposed between the first substrate and the second substrate, wherein a second electrode corresponding to any one of the first electrodes is offset in one direction with respect to the any one of the first electrodes while a second electrode corresponding to another first electrode neighboring the any one of the first electrodes is offset in another direction. 1. A tactile sensor comprising:a first substrate including a plurality of first electrodes;a second substrate including a plurality of second electrodes corresponding to the plurality of first electrodes; anda dielectric substance disposed between the first substrate and the second substrate,wherein a second electrode corresponding to any one of the first electrodes is offset from the any one of the first electrodes in one direction while a second electrode corresponding to another first electrode neighboring the any one of the first electrodes is offset from the another first electrode in a different direction.2. The tactile sensor of claim 1 , wherein the any one of the first electrodes and the second electrode corresponding to the any one first electrode are line symmetrical to the another first electrode and the second electrode corresponding to the another first electrode.3. The tactile sensor of claim 1 , wherein the first electrodes and the second electrodes corresponding to each other only partially overlap.4. The tactile sensor of claim 1 , whereina capacitance between at least part of the first electrodes and second electrodes corresponding to the at least part of the first electrodes changes when a shearing force is applied to the first substrate in a first direction, andthe capacitance between the at least part of the first electrodes and the corresponding second electrodes ...

WEIGHING DEVICE AND HARVEST COLLECTING APPARATUS

A weighing device for detecting the weight force of a pressed bale on a roll includes a bearing device of the roll. At least one weighing means is integrally disposed in the bearing device. 1. A weighing device for detecting the weight force of a pressed bale on a roll , comprising:a bearing device of the roll; andat least one weighing means integrally disposed in the bearing device.2. The weighing device of claim 1 , wherein the weighing means comprises a bearing pin.3. The weighing device of claim 1 , wherein the weighing means comprises at least one sensor.4. The weighing device of claim 3 , wherein the at least one sensor comprises a Hall effect sensor.5. The weighing device of claim 1 , wherein the weighing means is fixedly received at one end in a carrier flange claim 1 , the carrier flange configured to be connected to a frame of a harvest collecting apparatus.6. The weighing device of claim 1 , wherein the weighing means extends from a carrier flange into a hollow interior of the roll.7. The weighing device of claim 1 , wherein the weighing means is received in the interior of the roll by a bearing supporting the roll.8. The weighing device of claim 1 , wherein the roll is rotatable about the bearing device or the weighing means.9. The weighing device of claim 1 , further comprising a sleeve through which the weighing means extends claim 1 , the sleeve being fixedly received by a carrier flange.10. The weighing device of claim 9 , wherein claim 9 , in case of an overload claim 9 , means for connecting the roll to the carrier flange.11. The weighing device of claim 10 , further comprising a gap defined between a bearing pin and the sleeve.12. The weighing device of claim 11 , wherein claim 11 , in the case of an overload claim 11 , the gap is reduced such that the weighing means bears against the sleeve.13. The weighing device of claim 11 , wherein the gap is defined between the roll and the carrier flange such that in the event of an overload claim 11 , the ...

FLEXIBLE SENSORS AND RELATED SYSTEMS FOR DETERMINING FORCES APPLIED TO AN OBJECT, SUCH AS A SURGICAL INSTRUMENT, AND METHODS FOR MANUFACTURING SAME

Methods of manufacturing a flexible force sensor include forming a first sensor part providing a plurality of spaced first electrode plates in an electrically non-conductive material. A second sensor part is also formed and includes a plurality of second electrode plates in an electrically non-conductive material. The second electrode plates are identical to the first electrode plates at least in terms of spacing. The first part is assembled to the second part such that each of the first electrode plates are aligned with and parallel to, yet spaced from, respective ones of the second electrode plates, establishing a plurality of capacitive sensing components. The first electrode plates are movable relative to the corresponding second electrode plates, establishing a variable gap therebetween. The sensor parts can be ring-shaped. The sensor parts can be formed via MEMS techniques, with the non-conductive material being a polymer. 1forming a first sensor part including a plurality of first electrode plates in a non-conductive material, the first electrode plates being circumferentially spaced from one another;forming a second sensor part including a plurality of second electrode plates in a non-conductive material, the second electrode plates being identical to the first electrode plates in at least shape and circumferential spacing; andassembling the first sensor part to the second sensor part such that respective ones of the first electrode plates are aligned with and spaced from respective ones of the second electrode plates to establish a plurality of capacitive sensing components;wherein the first electrode plate of each of the sensing components is movable relative to the corresponding second electrode plate to establish a variable gap therebetween.. A method of manufacturing a flexible force sensor, the method comprising: This application is a continuation of U.S. application Ser. No. 13/391,514, filed May 2, 2012 and entitled “Flexible Sensors and Related ...

SYSTEM AND METHOD FOR MEASURING MOVING VEHICLE INFORMATION USING ELECTRICAL TIME DOMAIN REFLECTOMETRY

Systems, apparatus and methods are provided for measuring moving vehicle information. Moving vehicle information may be measured by a sensor configured to respond to one or more wheels of the moving vehicle, where one or more of the wheels change the characteristic impedance of the sensor at the wheel's contact location. An electrical time domain reflectometry signal processing system which is capable of measuring the change in the impedance of the sensor and converting the impedance change to a signal may be connected operatively to the sensor. A data-processing system receives the signal and extracts the moving vehicle information therefrom. 1. A system for measuring moving vehicle information of a moving vehicle , comprising:an electrical time domain reflectometry signal processing system being capable of measuring a change in an impedance of a sensor, and also being capable of converting the change in the impedance of the sensor to a signal; anda data-processing system being capable of extracting the moving vehicle information from the signal.2. The system of claim 1 , wherein:the sensor is configured to respond to at least one wheel of the moving vehicle, where said at least one wheel causes the change in the impedance of the sensor.3. The system of claim 2 , wherein:the moving vehicle information comprises any one of a wheel pressure and a wheel-sensor contact dimension.4. The system of claim 3 , wherein:the wheel-sensor contact dimension comprises at least one of a width of a wheelsensor contact, a location of the wheel-sensor contact along the sensor, and a wheelsensor contact duration.539-. (canceled). This application is related to and claims domestic priority benefits under 35 USC § 119(e) from U.S. Provisional Patent Application Ser. No. 61/772,138 filed on Mar. 4, 2013, the entire content of which is expressly incorporated hereinto by reference.This application is related to and claims domestic priority benefits under 35 USC § 119(e) from U.S. Utility ...

CAPACITIVE SHEAR FORCE SENSOR AND METHOD FOR FABRICATING THEREOF

A capacitive shear force sensor and a method for fabricating thereof are provided. The capacitive shear force sensor includes a first electric field shielding layer, a second electric field shielding layer, a driving electrode, a first sensing electrode, a second sensing electrode and a dielectric layer. The second electric field shielding layer is disposed under the first electric field shielding layer. The driving electrode is disposed between the first electric field shielding layer and the second electric field shielding layer. The first and the second sensing electrodes are disposed between the driving electrode and the second electric field shielding layer. The dielectric layer is disposed between the driving electrode and the first sensing electrode, and between the driving electrode and the second sensing electrode. The first sensing electrode and the driving electrode form a first capacitor. The second sensing electrode and the driving electrode form a second capacitor. 1. A capacitive shear force sensor , comprising:a first electric field shielding layer, having a lower surface;a second electric field shielding layer, having an upper surface, wherein the second electric field shielding layer is disposed under the first electric field shielding layer;a driving electrode, disposed under the lower surface of the first electric field shielding layer, and disposed between the first electric field shielding layer and the second electric field shielding layer;a first sensing electrode, disposed on the upper surface of the second electric field shielding layer, and disposed between the driving electrode and the second electric field shielding layer, wherein the first sensing electrode and the driving electrode form a first capacitor;a second sensing electrode, disposed on the upper surface of the second electric field shielding layer, and disposed between the driving electrode and the second electric field shielding layer, wherein the second sensing electrode does ...

FORCE/TORQUE SENSOR THAT MINIATURIZATION IS AVAILABLE

A force/torque sensor includes a ground unit having an internal space, a sensor unit positioned within the internal space and including a plurality of electrodes generating capacitances with the ground unit, and a support unit combined with a portion of the ground unit and supporting the sensor unit. 1. A force/torque sensor comprising:a ground unit including a sensing part, a base part, and a deformable part connecting the sensing part and the base part and elastically deformed, and wherein the ground unit has an internal space extending to a portion of the sensing part while passing through the base part and the deformable part;a sensor unit positioned within the internal space corresponding to the sensing part, and wherein the sensor unit includes a plurality of electrodes generating capacitances with the ground unit; anda support unit combined with the base part and supporting the sensor unit.2. The force/torque sensor of claim 1 , wherein the support unit has a through-hole to allow a portion of the sensor unit to communicate with the outside of the ground unit.3. The force/torque sensor of claim 1 , wherein the deformable part is formed by cutting out a portion of a side surface of the ground unit.4. The force/torque sensor of claim 1 , wherein the support unit includes a first part combined with the base part and a second part connecting the first part and the sensor unit claim 1 , wherein the first part has a sectional area corresponding to the internal space of the base part such that the first part is fitted into the internal space claim 1 , and wherein the sensor unit has a smaller sectional area than the first part such that the sensor unit is spaced apart from the ground unit in a widthwise direction of the ground unit.5. The force/torque sensor of claim 4 , wherein the second part has a smaller sectional area than the first part in the widthwise direction claim 4 , and wherein the sensor unit has a length enough to be spaced apart from the ground unit ...

Conveyor belt measuring system

A conveyor belt and a sensing system for sensing various conditions on a conveyor belt. The belt includes an array of sensing elements embedded in the belt to measure belt conditions. The sensing elements form parts of passive resonant circuits that each include a capacitor and an inductive coil. The capacitor or the inductive coil can be a sensing element. Measuring circuits external to the belt are inductively or capacitively coupled to the resonant circuits in the belt as they pass closely by. The sensing elements change the resonant frequency of their resonant circuits as a function of the sensed conditions. Frequency detectors in the measuring circuits measure that frequency change and convert it into a functionally related value used to determine a belt condition. Exemplary conditions include temperature, pressure, humidity, spillage, and product weight.

System and Method for Automatically Determining the Weight of Foods

The present invention relates to a system () for preparing foods (), comprising a housing () for receiving the food (), a recognition device () for recognizing at least one food carrier () couplable with the system (), and thereby recognizing the weight of the food carrier (), as well as a determining device () for determining the tare weight of the food based on the detected weight of the food carrier (). 116-. (canceled)17. A system for preparing foods , comprising a housing for receiving the food , a recognition device for recognizing at least one food carrier couplable with the system , and thereby recognizing the weight of the food carrier , as well as a determining device for determining the tare weight of the food based on the detected weight of the food carrier.18. The system according to claim 17 ,whereinthe system comprises a weighing device for weighing the food carrier together with foods stored thereon or therein, and the determining device is configured for determining the weight of the food, based on a subtraction of the detected weight of the food carrier from at least the weighed weight of the food carrier and the food stored thereon or therein.19. The system according to claim 18 ,whereinthe weighing device comprises at least one strain gauge.20. The system according to claim 17 ,whereinthe system is configured as a cooking device for cooking the food.21. The system according to claim 17 ,wherein{'b': '200', 'the recognition device comprises a code scanner for recognizing a code on the food carrier (), and thereby for recognizing the food carrier, wherein the code scanner.'}22. The system according to claim 17 ,whereinthe recognition device comprises a camera for recognizing the shape of the food carrier, and thereby to recognize the food carrier.23. The system according to claim 17 ,whereinthe recognition device comprises an NFC module for recognizing the food carrier.24. The system according to claim 17 ,whereinthe recognition device comprises a ...

Systems and Methods for Determining Stock Quantities Using a Capacitive Inventory Sensor

Systems and methods are provided for a capacitive inventory sensor. A system includes a track configured for retaining items. A first conducting plate is positioned along a portion of the track, and a second conducting plate is positioned in parallel with the first conducting plate along a portion of the track. The second conducting plate is positioned a distance from the first conducting plate, and the second plate is configured to have the items placed on top of the second plate. The system further includes a capacitance sensor configured for connection to the first and second conducting plates, where the capacitance sensor is configured to measure a capacitance between the first and second conducting plates, and where the capacitance varies based on a number of items positioned on the sensor track. 1. A capacitive inventory sensor system , comprising:a track configured for retaining items, wherein the track includes a front portion, and wherein the track includes a pusher that is configured to move along the track and to push the items toward the front portion of the track as items are removed from the track;a stationary first conducting plate positioned along a length of the track;a stationary second conducting plate positioned along a length of the track;a moveable third conducting plate connected to the pusher, wherein a face of the third conducting plate is positioned opposite a face of the first conducting plate and a face of the second conducting plate such that the moveable third conducting plate overlaps a portion of the first conducting plate and a portion of the second conducting plate;a capacitance sensor configured to measure a combined capacitance formed among the first conducting plate, the second conducting plate, and the third conducting plate, wherein the measured capacitance varies based on a position of the pusher along the track.2. The sensor system of claim 1 , further comprising a data processor configured to determine a number of items ...

Inventory control system

A weight sensing system for retail shelves includes multiple shelves having an electrical communication and power distribution system, and weight sensors located on the top surfaces of the shelves and coupled to the electrical communication and power distribution system for detecting the placement of retail products on the shelves. A controller monitors real-time at-the-shelf inventory and issues alerts when a retail product becomes out-of-stock, is anticipated to become out-of-stock, or is misplaced on a shelf. Collection of real-time inventory data enables comprehensive inventory control at the shelf and in storage areas.

DYNAMIC WEIGHING MACHINE

A dynamic weighing machine that comprises a set of buckets, a series of bucket-carrying supports and a transport system that moves the supports along at least one horizontal straight path, the buckets being able to adopt a weighing position (B) on their support in which the bucket is slightly raised with respect to the support, and the buckets comprising first and second sliding means, each one arranged on one side of the bucket and the machine has a weighing station with a scale with first and second rail means between which buckets in transit can pass through the weighing station when they adopt their weighing coupling position (B), sliding while being supported by their first and second sliding means, like a bogie. 110034562103321001023101. A dynamic weighing machine () that comprises a set of buckets () , each bucket having two sides ( , ) and a bottom (); a series of bucket-carrying supports (); and a transport system () that continually moves the supports along a path that comprises at least one horizontal straight path; the supports and buckets of the machine being prepared for their mutual coupling with limited vertical movement capacity of the bucket () with respect to the support () , such that each bucket can adopt at least two coupling positions , one of which is a supporting position (A) , in which the weight of the container rests on the support , and the other being a weighing position (B) , in which the bucket is slightly raised with respect to the support , where both coupling positions allow the support to carry the bucket with it while being transported , comprising the weighing machine (); a weighing station () for the buckets () arranged on said horizontal straight path; a loading station () for loading products in the buckets , arranged upstream from the weighing station; and a selective unloading station for products loaded in the buckets , arranged downstream from the weighing station; the machine being characterized in that{'b': 3', '10', ' ...

CAPACITIVE MICRO-ELECTRO-MECHANICAL FORCE SENSOR AND CORRESPONDING FORCE SENSING METHOD

A MEMS force sensor has: a substrate; a fixed electrode coupled to the substrate; and a mobile electrode suspended above the substrate at the fixed electrode to define a sensing capacitor, the mobile electrode being designed to undergo deformation due to application of a force to be detected. A dielectric material region is set on the fixed electrode and spaced apart by an air gap from the mobile electrode, in resting conditions. The mobile electrode comes to bear upon the dielectric material region upon application of a minimum detectable value of the force, so that a contact surface between the mobile electrode and the dielectric material region increases, in particular in a substantially linear way, as the force increases. 1. A MEMS force sensor comprising:a substrate;a fixed electrode coupled to the substrate; anda mobile electrode suspended above the substrate and facing the fixed electrode, mobile electrode and the fixed electrode defining a sensing capacitor, the mobile electrode being configured to undergo deformation in response to a force; anda dielectric material located on the fixed electrode and spaced apart from the mobile electrode by an air gap when the mobile electrode is in a rest condition,wherein the mobile electrode includes a contact surface that is configured to contact the dielectric material in response to the force, wherein an area of the contact surface increases as the force increases.2. The sensor according to claim 1 , wherein the dielectric material has a dielectric constant that is higher than a dielectric constant of air.3. The sensor according to claim 1 , wherein the dielectric material comprises silicon nitride.4. The sensor according to claim 1 , wherein the mobile electrode is configured to abut the dielectric material in response to a force of a minimum threshold value.5. The sensor according to claim 4 , wherein the contact surface increases in a substantially linear way with the force claim 4 , causing a corresponding ...

DEVICE FOR MEASURING SUPERFINE PARTICLE MASSES

A device for measuring superfine particles masses includes an exposure system with at least two measurement chambers having an identical geometry. Each measurement chamber has a deposition surface for the superfine particles which each have an aerosol feed line. The aerosol feed line has an outlet region to feed an aerosol onto the deposition surface, a means for generating a potential difference between the superfine particles in the aerosol and the deposition surface, and a grid arranged above the deposition surface. The outlet region has a widened outlet cross section having a constant distance from the deposition surface. At least one deposition surface is arranged on a piezoelectric crystal as a superfine balance. A first potential corresponding to a ground potential is present at each deposition surface. A second potential having a potential difference of at least 200 V in relation to the first potential is present at each grid. 111-. (canceled)12. A device for measuring a mass of superfine particles , the device comprising: a deposition surface for the superfine particles,', 'an aerosol feed line directed to each deposition surface, the aerosol feed line comprising an outlet region for feeding an aerosol onto the deposition surface,', 'a means for generating a potential difference between the superfine particles in the aerosol and the deposition surface, and', 'a grid arranged above the deposition surface, the grid being configured to completely span the outlet region,', 'wherein,', 'the outlet region comprises a widened outlet cross section which is configured to have a constant distance from the deposition surface over its entire circumference so as to form a circumferential gap nozzle and so that a suction volume is arranged concentrically around the aerosol feed line, and', 'at least one deposition surface is arranged on a piezoelectric crystal as a superfine balance,', 'wherein,', 'a first potential corresponding to a ground potential is present at each ...

Container filling machine with weighing device and weighing method

The present disclosure is directed to a machine for filling at least one container with a pourable product. The machine includes a conveyor; at least one filling unit configured to engage the at least one container; and a weighing device coupled to the at least one filling unit and configured to provide weighing information related to a weight of the at least one container during a filling operation. The weighing device includes a support unit having a supporting arm configured to hold the at least one container and configured to be elastically deformed as a function of the weight of the at least one container being filled; and a sensing unit configured to provide a contactless sensing, wherein the sensing unit is configured to detect a distance from the supporting arm to a portion of the machine facing the supporting arm, the weight of the container being a function of the distance.

FORCE SENSOR MODULE FOR APPLYING A PRELOAD FORCE TO A FORCE SENSOR

An example force sensor module for a touch-sensitive electronic device can include a force sensor, a bias assembly and an opposing bias assembly that is coupled to the bias assembly. The bias assembly can have a top wall and a plurality of side walls extending from the top wall. The top and side walls can define a chamber. The force sensor can be arranged between the bias assembly and the opposing bias assembly within the chamber. Additionally, the bias and opposing bias assemblies can be configured to apply a preload force to the force sensor, which is approximately equal to a spring force exerted between the bias and opposing bias assemblies. 1. A force sensor module for a touch-sensitive electronic device , comprising:a force sensor;a bias assembly comprising a top wall and a plurality of side walls extending from the top wall, the top wall and the side walls defining a chamber configured to receive the force sensor therein; andan opposing bias assembly coupled to the bias assembly, the force sensor being arranged between the bias assembly and the opposing bias assembly within the chamber, and the bias assembly and the opposing bias assembly exerting a spring force there between, wherein the bias assembly and the opposing bias assembly are configured to apply a preload force to the force sensor approximately equal to the spring force.2. The force sensor module of claim 1 , wherein the bias assembly further comprises a bottom wall having an opening formed therein claim 1 , and wherein the opposing bias assembly engages within the opening.3. The force sensor module of claim 2 , wherein the bottom wall comprises a plurality of bottom wall sections claim 2 , each of the bottom wall sections having a beveled end and extending from one of the side walls claim 2 , respectively claim 2 , and wherein the opening is arranged between the beveled ends of the bottom wall sections.4. The force sensor module of claim 3 , wherein the opposing bias assembly engages between the ...

Weigh module with parallel-guiding mechanism module

A parallel-guiding mechanism in accordance with the present invention comprises a load-receiving portion for receiving a load of a to be weighed object; a fixing portion including an end portion, an extending portion extending forwardly from the end portion and mounting portions extending forwardly from the extending portion, and parallel-guiding members connecting the load-receiving portion to the fixing portion. The mounting portions include a first mounting portion and a second mounting portion. A receiving space is formed between the first mounting portion, the second mounting portion and the extending portion for receiving at least a portion of the load-receiving portion. A containing space for receiving the extending portion is formed between the parallel-guiding members, the load-receiving portion and the end portion. The parallel-guiding members include an upper parallel-guiding member and a lower parallel-guiding member. The load-receiving portion, the fixing portion and the parallel-guiding members are formed integrally of one piece of solid material.

MONOLITHIC WEIGHING SYSTEM AND METHOD FOR PRODUCING SAME

A monolithic weighing system () includes a plurality of levers (), which are joined together by thin-section joints (). The levers, on the one hand, and the thin-section joints, on the other hand, are made of different materials or material combinations; and the levers, adjoining one of the thin-section joints on both sides thereof, have a first material (), and the thin-section joint has a second material () which is different from the first material. An associated method includes (i) an additive manufacturing process, in which different materials, including the first and second material (), are applied in layers and are joined to form a single-piece weighing system blank (), wherein the weighing system blank () has prospective lever regions () and prospective thin-section joint regions (), and (ii) subsequent subtractive finishing of the weighing system blank at least on the prospective thin-section joint regions to obtain the weighing system. 2. Monolithic weighing system claim 1 , as claimed in claim 1 ,wherein the subtractive finishing is carried out mechanically.3. Monolithic weighing system claim 2 , as claimed in claim 2 ,wherein the subtractive finishing is carried out by milling.4. Monolithic weighing system claim 1 , as claimed in claim 1 ,wherein the subtractive finishing is carried out laser-optically.5. Monolithic weighing system claim 1 , as claimed in claim 1 ,wherein the subtractive finishing is carried out by electrical discharge machining.6. Monolithic weighing system claim 1 , as claimed in claim 1 ,wherein one of the prospective thin-section joint regions and ones of the prospective lever regions adjoining the prospective thin-section joint region on both sides thereof, have two outer layers of the first material and, lying therebetween, an inner layer of the second material; andwherein, during a final machining process, the outer layers in the prospective thin-section joint region are completely removed while the inner layer is at least ...

BOARD ANALYSIS SUPPORTING METHOD AND BOARD ANALYSIS SUPPORTING SYSTEM

A board analysis supporting method comprising the following to be executed by an information processing device: board analyzing processing of setting a surface on which a component is mounted on a predetermined board, and calculating strain generated in the board from which the component has been removed, based on three-dimensional structure data indicating the board from which the component has been removed, and data indicating a predetermined force; and strain calculating processing of calculating the calculated strain on the set surface as strain of the component mounted on the set surface. 1. A board analysis supporting method comprising the following to be executed by an information processing device:board analyzing processing of setting a surface on which a component is mounted on a predetermined board, and calculating strain generated in the board from which the component has been removed, based on three-dimensional structure data indicating the board from which the component has been removed, and data indicating a predetermined force; andstrain calculating processing of calculating the calculated strain on the set surface as strain of the component mounted on the set surface.2. The board analysis supporting method according to claim 1 , wherein in the strain calculating processing claim 1 , the information processing device calculates as the strain of the component claim 1 , a difference between a distance between predetermined substance points on the set surface before application of the predetermined force claim 1 , and a distance between the predetermined substance points on the set surface after application of the predetermined force.3. The board analysis supporting method according to claim 1 , wherein when it is determined that the calculated strain of the component exceeds a predetermined threshold value claim 1 , the information processing device executes result displaying processing of specifying a component mounted in a position corresponding to ...

Parallelogram Linkage Structure for a Scale

Monolithic linkage structure having a base body and a load receiver guided in a Z direction relative to the base body by a plurality of parallel guide elements, wherein at least one parallel guide element is connected, via a first joint, on a first end to the base body and, via a second joint, on a second end distanced from the first end in an X direction to the load receiver, wherein the base body is configured on both sides of a plane, which extends in the Z direction and in an X direction, and wherein at least one parallel guide element has, on at least one outer surface facing away from the plane between the first joint and the second joint, at least one recess penetrating the at least one parallel guide element in the Z direction, through which projects a base body portion of the base body. 1. A monolithic parallelogram linkage structure for a scale , comprising a base body and a load receiver guided in a Z direction relative to the base body by a plurality of parallel guide elements ,a) wherein at least one parallel guide element is connected, via a first joint, on a first end to the base body and, via a second joint, on a second end distanced from the first end in an X direction to the load receiver,b) wherein the base body is configured on both sides of a plane, which extends in the Z direction and in an X direction preferably running perpendicular thereto, andc) wherein at least one parallel guide element has, on at least one outer surface facing away from the plane between the first joint and the second joint, at least one recess penetrating the at least one parallel guide element in the Z direction, through which projects a base body portion of the base body.2. The parallelogram linkage structure as in claim 1 , wherein a first portion of the at least one parallel guide element extends from the first joint to the at least one recess claim 1 , and the base body completely surrounds the first portion along an imaginary outer plane parallel to the plane.3. ...

STRETCHABLE ELECTRONIC STRUCTURES FORMED OF THIN FILMS INTEGRATED WITH SOFT HETEROGENEOUS SUBSTRATE

Stretchable electronic structure comprising one intrinsically fragile thin film integrated on or within a soft heterogeneous substrate. The invention also relates to a process for manufacturing such a structure. 1. A stretchable electronic structure comprising one intrinsically fragile thin film integrated on or within a soft heterogeneous substrate.2. The structure according to wherein said film is made of a sub-100 nm thick layer deposited by thermal evaporation on said heterogeneous substrate.3. The structure according to wherein said film is made of metal such as gold.4. Structure according to wherein said substrate comprises two portions claim 1 , with one being an elastic matrix (e.g. a rubbery material) and the other one being a mechanically softer domain (e.g a soft elastomer claim 1 , a gel or air) claim 1 , said soft domains being distributed within the matrix.5. The structure according to wherein said elastic matrix is a polyurethane foam (FPF).6. A pressure sensor using the structure of .7. The pressure sensor according to comprising a layer made of FPF sandwiched between two fragile thin films.8. A process for manufacturing a structure as defined in comprising a step consisting in the preparation of a soft multi-domain material where the domains are defined by highly contrasted stiffness.9. The process according to wherein said soft multi-domain material is FPF. The invention relates to stretchable electronic structures integrated on or within an elastic substrate.The invention is a stretchable electronic structure comprising an intrinsically fragile thin film integrated on or within a soft heterogeneous substrate. By doing so, one can tailor the mechanical properties of the thin film(s) without compromising on its (their) electrical properties.The <> is defined as a material of a maximum thickness of 1 μm. The term <> associated with <> refers to either ductile (e.g. metal) or brittle (e.g. silicon) materials, which ...

BALANCE WITH FREE-FLOATING WEIGHING PAN

A balance () has a weighing pan () that is held in a predetermined free-floating and constant position relative to translatory and rotary displacements in the six degrees of freedom during use. At least six position sensors are used to measure the position of the weighing pan in all three dimensions. A weighing mechanism having at least six electromagnetic mechanisms () generate compensation forces (F-F) that act on the weighing pan by sending currents through a force coil () associated with an associated permanent magnet. The weight of an object on the weighing pan is determined from the amounts of current flowing in the respective force coils to maintain the weighing pan in position. 1. A balance , comprising:a weighing pan;at least six position sensors, arranged to measure the position of the weighing pan in all three dimensions;a weighing mechanism with at least six electromagnetic mechanisms, each of which includes at least one permanent magnet and at least one force coil, such that the weighing mechanism generates compensation forces to act, through currents sent to each force coil, in each of the six translatory and rotatory degrees of freedom on the weighing pan, based upon the orientation and position of each force coil relative to the weighing pan;a regulating unit to regulate the individual currents flowing in the force coils, wherein the compensation forces, through the sum of their respective moments, hold the weighing pan in a constant, predefined and free-floating position relative to the six degrees of freedom; andan arithmetic unit provided with software to calculate the weighing result based on the amounts of current flowing in the respective force coils.2. The balance of claim 1 , wherein the at least six electromagnetic mechanisms are arranged relative to each other in a manner that distributes the weight of the weighing pan essentially uniformly over the at least six electromagnetic mechanisms.3. The balance of claim 2 , wherein the weighing pan ...

SENSOR INCLUDING ELECTRICAL TRANSMISSION-LINE PARAMETER THAT CHANGES RESPONSIVE TO VEHICULAR LOAD

An apparatus includes a sensor assembly. The sensor assembly includes a transmission-line assembly having an electrical transmission-line parameter configured to change, at least in part, in response to reception, at least in part, of a vehicular load of a moving vehicle moving relative to a vehicular roadway to the transmission-line assembly positionable, at least in part, relative to the vehicular roadway. 1. A sensor , comprising:a force receiving element with a first surface for receiving a force and a second flat surface;a deformable element connected to the force receiving element and a flat strip;a gap defined by the distance between the second flat surface and the flat strip;wherein, when a force is applied to the first surface, the gap between the second surface and the flat strip decreases.2. The sensor of claim 1 , further wherein claim 1 , the second flat surface and the flat strip are electrically conductive.3. The sensor of claim 2 , further wherein claim 2 , the second flat surface and the flat strip are substantially parallel.4. The sensor of claim 1 , further wherein claim 1 , the deformable element is elastically deformable.5. The sensor of claim 4 , further wherein claim 4 , the connection between the deformable element and the flat strip is electrically insulated.6. The sensor of claim 1 , further wherein claim 1 , when the force is removed from the first surface the gap between the second surface and the flat strip increases.7. The sensor of claim 1 , further wherein claim 1 , the first surface is flat claim 1 , and claim 1 , the first surface and the second surface are substantially parallel.8. The sensor of claim 1 , further comprising claim 1 , a signal connector connected to the second flat surface and the flat strip.9. The sensor of claim 1 , further comprising claim 1 , a signal terminator connected to the second flat surface and the flat strip.10. The sensor of claim 1 , further wherein claim 1 , the sensor is operative with an electrical ...

LOAD CELL

A load cell comprising an elastic body having a base, a flexible membrane that is adapted to yield upon application of a load to the membrane, a sensor for measuring the load applied to the membrane, at least one connector having a first end that is connected to the membrane and a second end that is connected to the sensor. The connector is configured to transmit a mechanical force that is applied to the membrane to the sensor. The connector can be attached to the membrane and/or the sensor by way of at least one pivotal connection. 1. A load cell comprisingan elastic body having a base;a flexible membrane having a configuration capable of yielding upon application of a load to said membrane;at least one sensor having a configuration capable of measuring the load applied to said membrane; andat least one connector having a first end that is connected to said membrane and a second end that is connected to said sensor, where said connector having a configuration capable of transmitting a mechanical force that is applied to said membrane to said sensor, said first end being attached to said membrane and/or said second end being attached said sensor by way of at least one pivotal connection.2. The load cell of claim 1 , wherein said sensor includes a first sensor part that has a first end that is fixed to said elastic body of said load cell and a free second end.3. The load cell of claim 2 , wherein said connector is connected to said second end of said first sensor part claim 2 , so that movement of said membrane is transmitted to said second end of said first sensor part.4. The load cell of claim 1 , wherein said sensor includes a second part claim 1 , said second part includes a capacitive measuring device.5. The load cell of claim 4 , wherein said capacitive measuring device includes at least one electrode.6. The load cell of further comprises a capacitive measurement circuit.7. The load cell of claim 1 , wherein said sensor includes at least one electrode claim 1 , ...

WEIGHT SCALE, METHOD OF MEASURING WEIGHT, AND ANIMAL LITTER BOX

A weight scale includes a load cell, an amplifier, and an A/D converter and further includes a CPU that: sets up the amplifier for a first measurement range and a first amplification factor and causes the amplifier to amplify an output voltage of the load cell and the A/D converter to convert an output of the amplifier from analog to digital, to obtain a first weight value of the measurement target; and sets up the amplifier for a second measurement range narrower than the first measurement range and a second amplification factor larger than the first amplification factor and then causes the amplifier to amplify an output voltage of the load cell and the A/D converter to convert an output of the amplifier from analog to digital, to obtain a second weight value of the measurement target. 1. A weight scale comprising:a load sensor;an amplifier;an A/D converter; and in a preceding weight measurement on a measurement target, set up the amplifier for a first measurement range and a first amplification factor and cause the amplifier to amplify an output voltage of the load sensor and the A/D converter to convert an output of the amplifier from analog to digital, to obtain a first weight value of the measurement target; and', 'in a succeeding weight measurement on the measurement target, set up the amplifier for a second measurement range narrower than the first measurement range and a second amplification factor larger than the first amplification factor and then cause the amplifier to amplify the output voltage of the load sensor and the A/D converter to convert an output of the amplifier from analog to digital, to obtain a second weight value of the measurement target., 'a control unit configured to2. The weight scale according to claim 1 , further comprising a first memory unit that stores a weight value of the measurement target claim 1 , whereinthe control unit, in weight measurement on the measurement target, sets up the amplifier for the second measurement range ...

CAPACITIVE DETECTION DEVICE AND SYSTEM FOR USE IN VEHICLE INTERIOR

A capacitive detection device and capacitive detection system for use in a vehicle interior includes at least one electrically conductive wire, at least partially attached to a component of the vehicle interior, and at least one electrically conductive layer that is arranged in close proximity to the at least one electrically conductive wire, compared to a potential minimum distance to a vehicle occupant, wherein a galvanic connection between the at least one electrically conductive layer and the at least one electrically conductive wire is avoided. 1. A capacitive detection device for use in a vehicle interior , comprisingat least one electrically conductive wire, at least partially attached to a component of the vehicle interior,a signal generating unit provided for generating a time-varying output signal and for applying the time-varying output signal to each electrically conducting wire of the at least one electrically conductive wire,at least one electrically conductive layer that is arranged to at least partially overlap the at least one electrically conductive wire in a direction perpendicular to a portion of an outer surface of the component that is closest to the at least one electrically conductive layer, wherein a galvanic connection between the at least one electrically conductive layer and the at least one electrically conductive wire is avoided, a minimum distance between a portion of the outer surface of the component to the at least one electrically conductive wire and', {'b': '2', 'a minimum distance (d) between the portion of the outer surface of the component to the at least one electrically conductive layer'}], 'wherein the ratio of the lesser of'}{'b': '1', 'to the minimum distance (d) between the at least one electrically conductive wire and the at least one electrically conductive layer at a location of the portion of the outer surface of the component is larger than or equal to 2.0 at least for a major portion of the part of the at least one ...

TOUCH SYSTEM CONFIGURED ON METAL SURFACE WITH X-Y AND FORCE DETECTION

A sensitive precision detector to sense user given control input in terms of activation on a cover plate by moving the finger with an easy touch, or with a force vertically or with a force in circular or elliptical movements on the surface of the cover plate.

DISPLACEMENT DETECTION TYPE SIX-AXIS FORCE SENSOR

A displacement detection type six-axis force sensor. The force sensor includes a first end portion; a second end portion; an intermediate portion; a first connecting portion elastically connecting the first end portion to the intermediate portion with first three-degrees of freedom; a second connecting portion elastically connecting the second end portion to the intermediate portion with second three-degrees of freedom; a first detecting part detecting relative displacement between the first end and intermediate portions, accompanied by elastic deformation of the first connecting portion; and a second detecting part detecting relative displacement between the second end and intermediate portions, accompanied by elastic deformation of the second connecting portion. The intermediate portion and the first and second connecting portions are disposed such that a force applied to the first or second end portion is applied to both of the first and second connecting portions without propagating through the intermediate portion. 1. A six-axis force sensor comprising:a first end portion;a second end portion;an intermediate portion between the first end portion and the second end portion;a first connecting portion that elastically connects the first end portion to the intermediate portion with first three-degrees of freedom;a second connecting portion that elastically connects the second end portion to the intermediate portion with second three-degrees of freedom;a first detecting part that detects a relative displacement between the first end portion and the intermediate portion, accompanied by elastic deformation of the first connecting portion, and outputs, based on the said relative displacement, a first detection value used for acquiring a first force component in a direction of a first axis, a second force component in a direction of a second axis orthogonal to the first axis, and a third moment component about a third axis orthogonal to both of the first axis and the ...

DISPLACEMENT DETECTION TYPE FORCE-DETECTION STRUCTURE AND DISPLACEMENT DETECTION TYPE FORCE SENSOR

A displacement detection type force-detection structure. The force-detection structure includes a first end portion; a second end portion; a connecting portion elastically connecting the first and second end portions with three degrees of freedom; a detecting part detecting relative displacement between the first and second end portions accompanied by elastic deformation of the connecting portion. The detecting part includes a first differentially-detecting section detecting a relative movement between the first and second end portions along a first axis as first movement data by using signals reverse in phase; a second differentially-detecting section detecting a relative movement between the first and second end portions along a second axis as second movement data by using signals reverse in phase; and a third differentially-detecting section detecting a relative rotation between the first and second end portions about a central axis along a third axis as rotation data by using signals reverse in phase. 1. A force-detection structure comprising:a first end portion;a second end portion;a connecting portion that elastically connects the first end portion to the second end portion;a detecting part that detects a relative displacement between the first end portion and the second end portion, accompanied by elastic deformation of the connecting portion, and outputs, based on the said relative displacement, a detection value used for acquiring a first force component in a direction of a first axis, a second force component in a direction of a second axis orthogonal to the first axis, and a moment component about a third axis orthogonal to both of the first axis and the second axis, of a force applied to the first end portion or the second end portion; wherein a first differentially-detecting section that detects, in a differential manner, a relative movement between the first end portion and the second end portion along the first axis as first movement data by using ...

METHOD AND APPARATUS FOR MEASURING MASS BASED ON TORQUE EQUILIBRIUM

A method and an apparatus for measuring mass based on torque equilibrium, including a main blade for supporting and balancing a lever and parts arranged on the lever; a displacement measuring device for measuring a position of the lever; an electromagnetic torquer for balancing the apparatus after a balance weight is coarsely loaded during measuring; a product tooling on which a product to be measured is arranged and fixedly connected. The product tooling is fixed on a slider which freely slides along a guide rail; a locking block is provided to lock the product after the product slides in place; the guide rail is fixed on the level; a laser displacement sensor is provided to measure a displacement of the product along the guide rail; a lifting mechanism is provided to lift the lever and parts arranged on the lever to separate from the main blade. 1. An apparatus for measuring mass based on torque equilibrium , comprising:a main blade for supporting and balancing a lever and parts arranged on the lever;a displacement measuring device for measuring a position of the lever;an electromagnetic torquer for balancing the apparatus after a balance weight is coarsely loaded during measuring;a product tooling on which a product to be measured is arranged and fixedly connected;wherein the product tooling is fixed on a slider which freely slides along a guide rail; a locking block is provided to fixedly lock the product after the product slides in place; the guide rail is fixed on the level; a laser displacement sensor is provided to measure a displacement of the product along the guide rail; a lifting mechanism is provided to lift the lever and the parts arranged on the lever to separate from the main blade; a load cell is provided above the lifting mechanism and is configured to measure mass and center of mass of the product, such that the balance weight with an appropriate mass is loaded by an automatic loading system; and a minor blade is provided to provide an accurate ...

WEIGH MODULE

Aweigh module with a load-receiving portion, a fixing portion, and a parallel guide portion also has a lever system with a first lever and a second lever. An additional portion of the load-receiving portion extends towards the fixing portion. An extension of the fixing portion extends towards the load-receiving portion. A first end of the first lever is connected by joints to the additional portion and the extension portion. A first end of the second lever is connected by joints to the second end of the first lever and to the extension portion. All joints are of a thin sheet structure. The second end of the second lever is configured for connection to a magnetic system. The weigh module is manufactured integrally. The use of the structure according to the present invention can meet design requirements of large range and small size of sensors. 1. Aweigh module , comprising:a load-receiving portion;a fixing portion, the load-receiving portion having an additional portion that extends towards the fixing portion and the fixing portion having an extension portion that extends towards the load-receiving portion;a parallel guide portion that connects the load-receiving portion to the fixing portion and a first end of the first lever is connected to the additional portion and to the extension portion, with joints thereof being both of a thin sheet structure;', 'a second end of the first lever is connected to a first end of the second lever, which is further connected to the extension portion, with joints thereof also being both of a thin sheet structure; and', 'a second end of the second lever is configured for connection to a magnetic system; and, 'a lever system, arranged in a space defined by the load-receiving portion, the fixing portion and the parallel guide portion, such that a gap is formed between the additional portion and the extension portion and a gap is also formed between the lever system and the additional portion and the extension portion, the lever system ...

Capacitive Pressure Sensor With Reduced Parasitic Capacitance

System, apparatus and method for capacitive sensing, where a sensor includes an upper and lower housing, each respectively equipped with upper and lower pressure ports. The lower housing is electrically coupled to an active shield. An insulating material is provided on or near a conductive diaphragm for insulating the conductive diaphragm from the lower housing. The insulating material may be an insulator or a dielectric material, where a sensing electrode is positioned such that the sensing electrode extends laterally across at least a portion of the insulating material, and is separated from the insulating material by a predetermined distance to form an air gap. 1. A capacitive pressure sensor , comprising:an upper housing comprising an upper pressure port;a lower housing comprising a lower pressure port, said lower housing being coupled to an active shield;a conductive diaphragm positioned between the upper and lower housing;an insulator, positioned in the pressure sensor to insulate the conductive diaphragm from the lower housing;a sensing electrode positioned in the lower housing, wherein the sensing electrode extends laterally across at least a portion of the conductive diaphragm, and is separated from the conductive diaphragm by a predetermined distance.2. The capacitive pressure sensor of claim 1 , wherein the conductive diaphragm is electrically coupled to the upper housing3. The capacitive pressure sensor of claim 1 , wherein the upper housing and conductive diaphragm are electrically coupled to a common reference.4. The capacitive pressure sensor of claim 1 , wherein the sensing electrode is further coupled to a drive circuit via an electrical conductor.5. The capacitive pressure sensor of claim 1 , wherein the upper and lower housings are constructed from one of stamping claim 1 , casting claim 1 , and machined passivated metal.6. The capacitive pressure sensor of claim 1 , further comprising a capacitance-to-digital converter claim 1 , operatively ...

APPARATUS FOR DETECTING A FORCE EFFECT AND A METHOD FOR DETECTING A FORCE EFFECT

An apparatus for detecting a force effect comprises two electrical conductors which run at a distance from one another, a deformable spacer which is arranged between the two electrical conductors, a first measuring device which is electrically connected to one end of the two electrical conductors in each case and an electrical component which is electrically connected to the respective other end of the two electrical conductors. The first measuring device is designed to detect a change in a variable which can be measured by the measuring device, which change is caused by a change in the distance between the two electrical conductors which is caused by a force effect at at least one place along the two electrical conductors, in order to detect the force effect. 1. An apparatus for detecting a force effect , comprising:two electrical conductors that run at a distance from one another;a deformable spacer arranged between the two electrical conductors;a first measuring device electrically connected to one end of each of the two electrical conductors; andan electrical component electrically connected to the respective other end of the two electrical conductors,wherein the first measuring device is configured to detect a change in a variable that can be measured by the measuring device, wherein the change is caused by a change in the distance between the two electrical conductors caused by a force effect at at least one place along the two electrical conductors, in order to detect the force effect.2. The apparatus as claimed in claim 1 , wherein the first measuring device is configured to record a test signal dependent on the electrical component using at least one of the two electrical conductors in a test mode claim 1 , such that functionality of the apparatus can be assessed on the basis of the recorded test signal.3. The apparatus as claimed in claim 1 , wherein the electrical component comprises a second measuring device claim 1 , both the first and second measuring ...

METHOD FOR MEASURING BASIS WEIGHT, METHOD FOR MANUFACTURING LAMINATED FILM, AND DEVICE FOR MEASURING BASIS WEIGHT

To measure the mass per unit area of an applied layer in a layered film while preventing a measurement error from being caused by thickness unevenness, a per-unit-area-mass measuring device () includes a light projector () configured to project light having a center wavelength of 405 nm, a light projector () configured to project light having a center wavelength of 850 nm, light receivers () configured to receive light having been transmitted through a separator (), and a control section () configured to calculate the mass per unit area of a heat-resistant layer () on the basis of the respective transmitted-light intensities of the light having a center wavelength of 405 nm and the light having a center wavelength of 850 nm. 1. A method for measuring a mass per unit area of an applied layer in a layered film including a base film and the applied layer provided on the base film ,the method comprising:a light-transmitting step of causing measurement light to be transmitted through the layered film, the measurement light including a first beam having a center wavelength at a first wavelength and a second beam having a center wavelength at a second wavelength different from the first wavelength;a light-measuring step of measuring respective transmitted-light intensities of the first and second beams of the measurement light having been transmitted through the layered film; anda calculating step of calculating the mass per unit area of the applied layer on a basis of the transmitted-light intensities.2. A method for measuring a mass per unit area of an applied layer in a layered film including a base film and the applied layer provided on the base film ,the method comprising:a light-transmitting step of causing measurement light to be transmitted through the layered film;a light-measuring step of (i) separating, into a first beam having a first wavelength and a second beam having a second wavelength different from the first wavelength, the measurement light having been ...

SYSTEM COMPRISING A CELLULAR NETWORK OF CAPACITIVE PRESSURE AND SHEAR-STRESS SENSORS AND MANUFACTURING PROCESS

Disclosed is a system and to a process for manufacturing a system including a network of sensors including a sheet of dielectric material that is elastically deformable under compressive and shear stress, each cell of the network including a first capacitive sensor for sensing normal pressure in a first direction, a second capacitive sensor for sensing shear stress in a second direction and a third capacitive sensor for sensing shear stress in a third direction. Each capacitive sensor includes a first electrode fixed to the first side of the sheet of dielectric material and a second electrode fixed to the second side of the sheet of dielectric material, the first electrodes of the capacitive sensors of a given cell being connected in series to a first electrically conductive track connecting a row of cells of the network of sensors. 112-. (canceled)13. A pressure sensor network system , comprising:a sheet of dielectric material elastically deformable in compression and shear, the sheet of dielectric material having a first face and a second face, whereinthe sensor network system includes:a network comprising a plurality of pressure sensor cells, the cells being arranged in at least three rows and at least three columns, each cell comprising a first capacitive sensor for sensing normal pressure in a first direction (Z),each capacitive sensor being consisted of a first electrode fixed to the first face of the sheet of dielectric material and a second electrode fixed to the second face of the sheet of dielectric material,said first electrode of the capacitive normal-pressure sensor of a cell being connected in series to a first electrically conductive track connecting a row of cells of the sensor network;the second electrode of the capacitive normal-pressure sensor of a cell being connected to a second electrically conductive track connecting a column of capacitive normal-pressure sensors of the sensor network;and wherein the sensor network system comprises addressing ...

FORCE-SENSING CAPACITOR ELEMENTS, DEFORMABLE MEMBRANES AND ELECTRONIC DEVICES FABRICATED THEREFROM

Force-sensing capacitor elements and deformable membranes useful in electronic devices that include touch screen displays or other touch sensors. The deformable membranes, generally, include a first, second, and third layers with a first arrangement of a plurality of first structures interposed between the first and third layers and a second arrangement of one or more second structures interposed between the second and third layers. Electrodes may be included proximate to or in contact with one or more of the major surfaces of the first, second, and third layers or embedded within one or more of the second and third layers of the deformable membranes, yielding force-sensing capacitor elements. The electrodes proximate to or in contact with the one or more of the major surfaces of the first and second layers or embedded within one or more of the second and third layers may be one or more plurality of electrodes. 1. A force-sensing capacitor element comprising: a first layer having first and second major surfaces,', 'a second layer having first and second major surfaces,', 'a third layer having first and second major surfaces interposed between the second major surface of the first layer and the second major surface of the second layer,', 'a first arrangement comprising a plurality of first structures, with corresponding first void regions, interposed between the second major surface of the first layer and the first major surface of the third layer, wherein each first structure has a first surface facing the second major surface of the first layer and a second surface facing the first major surface of the third layer, and', 'a second arrangement comprising one or more second structures, with corresponding second void regions, interposed between the second major surface of the second layer and the second major surface of the third layer, wherein each of the one or more second structures has a first surface facing the second major surface of the second layer and a ...

BEARING, IN PARTICULAR FOR A MAGNETIC LEVITATION ASSEMBLY

A magnetic bearing assembly () comprises a first magnet assembly () for generating a first quadrupole magnetic field in a first plane and a second magnet assembly () for generating a second quadrupole magnetic field in a second plane. The second plane is arranged parallel to the first plane. The quadrupole magnetic fields exhibit in each case in the planes magnetic field axes arranged at an angle to one another between four poles. A longitudinal axis (A) is defined at right angles hereto by the centres of the quadrupole magnetic fields. At least one diamagnetic element () is arranged on the longitudinal axis (A). The first and second magnet assemblies () are arranged relative to one another in such a way that the first and the second quadrupole magnetic fields are rotated towards one another about the longitudinal axis (A) by an angular amount which is not a whole-number multiple of 90°. Such a bearing arrangement can be used in particular in a magnetic levitation assembly () with a lifting assembly (). 1one first magnet assembly for generating a first quadrupole magnetic field in a first plane, and a second magnet assembly for generating a second quadrupole magnetic field in a second plane, wherein the quadrupole magnetic fields comprise in each case in the planes magnetic field axes arranged at an angle to one another between four poles,wherein the second plane is arranged parallel to the first plane, and a longitudinal axis at right angles to this is defined by the centres of the quadrupole magnetic fields,and at least one diamagnetic element which is arranged on the longitudinal axis,wherein the first and second magnet assemblies are arranged relative to one another in such a way that the first and the second quadrupole magnetic fields are rotated in relation to one another about the longitudinal axis by an angular amount which is not a whole number multiple of 90°.. A bearing assembly, comprising: This application is a continuation of U.S. patent application ...

ABSOLUTE MASS BALANCE

An absolute mass balance determines an absolute mass of an object and includes: a dual diameter wheel including: a balance fulcrum; and a balance beam disposed on the balance fulcrum and including: a main mass arm and a counter mass arm; a main mass receiver that receives the object; a main magnet system including: a first main coil that produces a first magnetic field; a second main coil that produces a second magnetic field; and a permanent magnet that produces a third magnetic field that interacts with the first magnetic field and the second magnetic field; a displacement measuring system that provides a null position of the dual diameter wheel and measures a velocity of the main magnet system; and a driving motor including: an eddy current damper that provides a constant velocity of the main mass receiver; and a counter mass magnet system. 1. An absolute mass balance for determining an absolute mass of an object , the absolute mass balance comprising: a balance fulcrum on which the dual diameter wheel pivots; and', a main mass arm in mechanical communication with the balance fulcrum; and', 'a counter mass arm laterally disposed proximate to the main mass arm and in mechanical communication with the balance fulcrum;, 'a balance beam disposed on the balance fulcrum and that pivots about the balance fulcrum, the balance beam comprising], 'a dual diameter wheel comprisinga main mass receiver in mechanical communication with the main mass arm and that receives the object and that moves with the main mass arm; a first main coil in mechanical communication with the main mass receiver and the main mass arm, interposed between the main mass receiver and the dual diameter wheel, and that produces a first magnetic field and that moves with the main mass arm;', 'a second main coil in mechanical communication with the main mass receiver and the main mass arm, interposed between the main mass receiver and the first main coil, and that produces a second magnetic field, the ...

CAPACITIVELY COUPLED SENSOR SYSTEM FOR CONVEYOR BELTS

A sensor system for a conveyor belt comprising a sensor stage on the conveyor belt and a stationary drive and detection stage external to the conveyor belt in the belt carryway. In an exemplary version, the sensor stage includes a capacitor sensor whose capacitance varies with the weight of a load atop a pressure platform at the belt's conveying surface. An oscillator in the drive and detection stage drives the capacitor sensor through capacitors formed when plates in the sensor stage in the advancing conveyor belt overlap stationary plates in the drive and detection stage during the belt's passage along the carryway. The corresponding plates in the belt and the carryway have different longitudinal dimensions to ensure constant plate overlap area of longer duration and despite lateral belt-tracking offset. The drive and detection stage detects the capacitance of the sensor and converts it into a weight value. 1. A conveyor-belt measuring system comprising:a conveyor belt having a top side and a bottom side; an oscillator producing a drive signal;', 'a first external capacitor plate positioned near the bottom side of the conveyor belt and connected in series with the oscillator;', 'a second external capacitor plate positioned near the bottom side of the conveyor belt;', 'a detector connected to the second external capacitor plate;, 'a drive and detection stage external to the conveyor belt and includinga first belt capacitor plate mounted in the conveyor belt near the bottom side of the conveyor belt;a second belt capacitor plate mounted in the conveyor belt near the bottom side of the conveyor belt;wherein the first belt capacitor plate and the first external capacitor plate are aligned to form a drive capacitor when the second belt capacitor plate and the second external capacitor plate are aligned to form a communication capacitor;a sensor mounted in the conveyor belt and connected in series between the drive capacitor and the communication capacitor;wherein the ...

GRIP SENSOR

Embodiments of the present invention provide robust capacitive grip sensors that may be used in a variety of applications, including single-handed and double-handed grips, such as but not limited to barbells. Apparatus as disclosed herein and efficiently measure the presence of a human grip without requiring deformation of a gripped surface area. 1. A grip detecting system for independently detecting extent of left hand and right hand engagement with spaced-apart first and second locations of an article for a user of the article , the system comprising:a plurality of first strands of electrically conductive material located on the article at the first location;a plurality of second strands of electrically conductive material located on the article at the second location;a first outer electrically non-conductive layer covering the plurality of first strands of electrically conductive material;a second outer electrically non-conductive layer covering the plurality of second strands of electrically conductive material;a plurality of first processors, each associated with one of the first strands of electrically conductive material, the plurality of first processors each configured to detect capacitance in the respective first strand of electrically conductive material and compare the detected capacitance against a predetermined threshold to determine an above or below state of capacitance, wherein output of the plurality of first processors collectively indicates the extent of engagement by the left hand of the user with the first location of the article; and,a plurality of second processors, each associated with one of the second strands of electrically conductive material, the plurality of second processors each configured to detect capacitance in the respective second strand of electrically conductive material and compare the detected capacitance against a predetermined threshold to determine an above or below state of capacitance, wherein output of the plurality of ...

Weighing Method Of Touchscreen Terminal, And Touchscreen Terminal

Embodiments of the present invention provide a weighing method of a touchscreen terminal, and a touchscreen terminal. When a to-be-weighed object is placed in a preset area of a touchscreen of a touchscreen terminal, a reported first capacitance value and reported coordinates of a compensation point are obtained. The first capacitance value is compensated according to a compensation relationship, the coordinates of the compensation point, and the first capacitance value to obtain a second capacitance value. In this way, no additional external structure is needed for the touchscreen terminal, making the touchscreen terminal convenient to carry.

Digital linearization in a weighing cell

A force exerted by a load is determined in a force-measuring device ( 1 ) operating under electromagnetic force compensation. The device includes a measurement transducer ( 18, 118 ) with a coil ( 20, 120 ) movably immersed in a magnet system ( 19, 119 ) and a force-transmitting mechanical connection between a load-receiving part ( 12, 112 ) and the coil or magnet system. A position sensor ( 21, 28 ), also part of the device, determines a displacement of the coil from its settling position relative to the magnet system ( 19, 119 ) which occurs when the load is placed on the load-receiving part. An electrical current ( 24 ) flowing through the coil generates an electromagnetic force between the coil and the magnet system whereby the coil and the load-receiving part are returned to, and/or held at, the settling position. The magnitude of current and the amount of displacement are used to determine the weight force exerted by the load.

FULL-AUTOMATIC DYNAMIC TOBACCO MOISTURE ANALYSIS CLIMATE CHAMBER

A full-automatic dynamic tobacco moisture analysis climate chamber comprises an enclosed constant-temperature constant-humidity cabin, which is communicated with an air temperature and humidity processor to form an air circulation loop; a weighing platform is disposed inside the constant-temperature constant-humidity cabin, a sample delivery hanger is hung inside the constant-temperature constant-humidity cabin, at least one placement carrier is disposed below the sample delivery hanger, a sample vessel is placed on the placement carrier, the sample delivery hanger is further connected to a drive mechanism outside the constant-temperature constant-humidity cabin and the drive mechanism drives the sample delivery hanger to perform operations, to place the sample vessel on the weighing platform for weighing. The climate chamber, can minimize the test period, minimize intermediate links and human operation errors, and obtain a moisture content change rule of a tobacco sample as an important basis for performance evaluation of a tobacco humectant. 1. A full-automatic dynamic tobacco moisture analysis climate chamber , characterized in that , it comprises an enclosed constant-temperature constant-humidity cabin , the constant-temperature constant-humidity cabin is communicated with an air temperature and humidity processor through two air delivery pipelines to form an air circulation loop , the air delivery pipeline is provided with a blower; a weighing platform is disposed inside the constant-temperature constant-humidity cabin , the weighing platform is connected to a weighing sensor of an electron balance via a straight tube that penetrates a housing of the constant-temperature constant-humidity cabin , the electron balance is located outside the constant-temperature constant-humidity cabin; a sample delivery hanger is hung inside the constant-temperature constant-humidity cabin , at least one placement carrier is disposed below the sample delivery hanger , a sample ...

AIRCRAFT LANDING GEAR

An aircraft undercarriage has an axle for carrying at least one wheel. The undercarriage further includes a magnetic measurement target and at least one magnetic movement sensor cooperating with the magnetic measurement target to measure bending of the axle. The magnetic measurement target has a body that extends inside the axle and includes a fastener end fastened to one end of the axle. The body also include a target surface that extends over an inside surface of the body. The magnetic movement sensor is positioned inside the axle to measure movement of the target surface. 1. An aircraft undercarriage , comprising:an axle configured to carry at least one wheel; anda magnetic measurement target; andat least one magnetic movement sensor cooperating with the magnetic measurement target to measure bending of the axle, wherein the magnetic measurement target includes a body that extends inside the axle, the body including a fastener end fastened to one end of the axle and a target surface that extends over an inside surface of the body, the magnetic movement sensor being positioned inside the axle to measure movement of the target surface.2. The aircraft undercarriage according to claim 1 , wherein the magnetic movement sensor is positioned inside a central portion of the axle.3. The aircraft undercarriage according to claim 2 , wherein the magnetic movement sensor is mounted on a support fastened to the central portion of the axle claim 2 , the support extending through an opening formed in the central portion of the axle.4. The aircraft undercarriage according to claim 1 , wherein the body has a main portion in the form of a portion of a hollow cylinder.5. The aircraft undercarriage according to claim 1 , wherein a slot is formed in the body in an axial direction claim 1 , the slot separating two longitudinal portions of the body claim 1 , each longitudinal portion of the body presenting a target surface that extends over an inside surface of the longitudinal portion ...

Waage mit Überlastdiagnose

A device and method for detection of an overload on a scale which operates by the principle of electromagnetic force compensation The device and method employing, in addition to the measurement voltage arising across a measurement resistor of the scale, an auxiliary voltage that is different from the measurement voltage The auxiliary voltage being tapped at the input to the compensation coil of the scale or at the output of the compensation coil 111-. (canceled)12. A scale which operates by the principle of electromagnetic force compensation , the scale including:(a) a magnet;(b) a compensation coil movable relative to the magnet;(c) an output stage having an output connected to the compensation coil to supply an electrical current to the compensation coil to maintain the position of the compensation coil relative to the magnet;(d) a measurement resistor connected in series with the compensation coil between the compensation coil and a reference voltage;(e) an auxiliary measurement voltage node located between the output of the output stage and the compensation coil or between the compensation coil and the measurement resistor to provide an auxiliary measurement voltage; and(f) wherein a measurement resistor voltage across the measurement resistor is representative of a weight measurement value for the scale when a load force within a first load force range is introduced onto a load receiving element of the scale, and the auxiliary measurement voltage indicates an overload case when a load force outside the first load force range is introduced onto the load receiving element of the scale.13. The scale of :(a) further including a first A/D converter and a signal switching arrangement operable to switch between a first input of the first A/D converter and a second input of the first A/D converter;(b) wherein the first input of the first A/D converter is coupled to the measurement resistor voltage; and(c) wherein the second input of the first A/D converter is coupled ...

WEIGHING APPARATUS AND METHOD FOR OPERATING THE WEIGHING APPARATUS

An assembly of a load cell with an armature joined thereto and an electromagnet. The electromagnet and the armature are separately fixed and they are arranged such that a magnet force which is opposite to a deflection during a weighing procedure and which reduces a deflection caused by an impact momentum of an object to be weighed is exerted to the load cell when the electromagnet is activated. 1. A weighing assembly for weighing an object , the assembly comprising:a load cell experiencing a weight deflection, the weight deflection comprising a first deflection during weighing of the object and a second deflection caused by an impact momentum of the object during weighing of the object, andan electromagnet comprising an armature, the armature fixed to the load cell, the electromagnet not being fixed to the load cell;wherein the electromagnet and the armature are arranged such that when actuating the electromagnet a magnetic force is applied to the load cell, the magnetic force being opposite to the first deflection and reducing the second deflection.2. A weighing apparatus for weighing an object , the weighing apparatus comprising: a load cell experiencing a weight deflection, the weight deflection comprising a first deflection during weighing of the object and a second deflection caused by an impact momentum of the object during weighing of the object, and', the armature fixed to the load cell,', 'the electromagnet not being fixed to the load cell, the electromagnet and the armature are arranged such that when actuating the electromagnet a magnetic force is applied to the load cell,', 'the magnetic force being opposite to the first deflection and reducing the second deflection; and, 'an electromagnet comprising an armature,'}], 'a weighing assembly comprising'}a control device connected to the load cell and to the electromagnet and adapted to control the electromagnet.3. The weighing apparatus according to claim 2 , wherein the electromagnet is arranged in such a ...

CAPACITANCE TYPE SENSOR

A capacitance type sensor includes: a dielectric layer made of a polymer; an elongated front-side electrode placed on a front side of the dielectric layer; an elongated back-side electrode placed on a back side of the dielectric layer; a front-side wiring connected to the front-side electrode; a back-side wiring connected to the back-side electrode; and a plurality of detection portions formed between the front-side electrode and the back-side electrode. Each of the front-side electrode and the back-side electrode has an elongated electrode body containing a binder and a conductive material, and an extended wiring portion extending in a longitudinal direction of the electrode body and having lower volume resistivity than the electrode body, and the front-side wiring and the back-side wiring have lower volume resistivity than the electrode body. 1. A capacitance type sensor , comprising:a dielectric layer made of a polymer;an elongated front-side electrode placed on a front side of the dielectric layer;an elongated back-side electrode placed on a back side of the dielectric layer;a front-side wiring connected to the front-side electrode;a back-side wiring connected to the back-side electrode; anda plurality of detection portions formed between the front-side electrode and the back-side electrode which face each other in a front-back direction,the capacitance type sensor being capable of detecting surface pressure distribution based on a change in capacitance of the detection portion, characterized in thateach of the front-side electrode and the back-side electrode has an elongated electrode body containing a binder and a conductive material, and an extended wiring portion extending in a longitudinal direction of the electrode body and having lower volume resistivity than the electrode body, andthe front-side wiring and the back-side wiring have lower volume resistivity than the electrode body.2. The capacitance type sensor according to claim 1 , whereinthe extended ...

Weighing apparatus

A weighing apparatus is provided that quantifies an impact load based on an electrical output from a mass sensor to prevent damage to the mass sensor by disclosing the degree of impact to a user. The weighing apparatus includes a weighing unit on which an object is placed and a mass sensor that receives the mass×acceleration of gravity of the object as a load and measures mass from an electrical signal corresponding to displacement of an internal structure of the apparatus. The apparatus quantifies and records the amount of the displacement, and determines acceleration by a numerical calculation from the displacement data. The obtained acceleration quantifies the amount of impact applied on the weighing apparatus by the object, and may be used to warn the user when the weighing apparatus is in danger of damage.

FORCE-TRANSMITTING MECHANISM WITH A SEPARATE LEVER ARM EXTENDING TO A POSITION SENSOR

The force-transmitting mechanism () includes a parallel-motion guide mechanism with a movable parallel leg (), a stationary parallel leg, and at least two parallel-guiding members (), wherein the parallel legs and the parallel-guiding members are connected to each other by flexure pivots and the movable parallel leg is constrained to the stationary parallel leg in guided mobility by the parallel-guiding members. The force-transmitting mechanism further includes a force-transmitting lever () which is pivotally supported on a fulcrum pivot () arranged on the stationary parallel leg, with a first lever arm () having a force-transmitting connection to the movable parallel leg by way of a coupling member (), and a second lever arm () to which a measurement transducer () can be attached through a force-transmitting connection. The second lever arm includes a first partial lever arm (A) and a second partial lever arm (B), wherein the first partial lever arm is designed to receive the compensation force generated by the measurement transducer, and the second partial lever arm is designed for the detection of a displacement of the pivotally supported force-transmitting lever relative to a null reference of a position sensor (). 1. A mechanism for transmitting force in a force-measuring device based on the principle of electromagnetic force compensation , the mechanism comprising:a parallel-motion guide mechanism with a movable parallel leg, a stationary parallel leg, and at least two parallel-guiding members;flexure pivots that connect the parallel legs and the parallel-guiding members to each other, with the movable parallel leg constrained to the stationary parallel leg in guided mobility by the parallel-guiding members;a force-transmitting lever that is pivotally supported on a fulcrum pivot arranged on the stationary parallel leg with a first lever arm having a force-transmitting connection to the movable parallel leg by way of a coupling member, and a second lever arm ...

SENSOR, INPUT APPARATUS, AND ELECTRONIC DEVICE

A sensor includes a base material, a first elastic layer provided on the base material, and a sensor body which is provided on the first elastic layer and includes an electrostatic capacitive sensing part, and the base material and the first elastic layer are bonded such that an area corresponding to the sensing part becomes a non-bonded area. 1. A sensor comprising:a base material;a first elastic layer provided on the base material; anda sensor body which is provided on the first elastic layer and includes an electrostatic capacitive sensing part, whereinthe base material and the first elastic layer are bonded such that an area corresponding to the sensing part becomes a non-bonded area.2. The sensor according to claim 1 , whereinthe sensor body includes:a first reference electrode layer provided on the first elastic layer;a second reference electrode layer provided apart from the first reference electrode layer;a sensor electrode layer which is provided between the first reference electrode layer and the second reference electrode layer and includes the sensing part;a first support layer provided between the first reference electrode layer and the sensor electrode layer; anda second support layer provided between the second reference electrode layer and the sensor electrode layer.3. The sensor according to claim 2 , wherein the first elastic layer is configured to be pressed against the sensor body such that the first reference electrode layer can be pushed up toward the sensing part.4. The sensor according to claim 2 , wherein the first support layer has a first space between the first reference electrode layer and the sensing part claim 2 , andthe second support layer has a second space between the second reference electrode layer and the sensing part.5. The sensor according to claim 4 , wherein the sensor body further includes at least one of a first structure which is provided in the first space and is lower than a height of the first support layer and a ...

Load Detector

A load detector includes a housing having a height direction, and a load sensor provided within the housing. The load detector further includes a base platform, an elastic beam and an elastic member, the base being floatingly supported on the housing by the elastic beam, and the elastic member being provided on the base platform for receiving a load force. With the load force is applied to the elastic member, the elastic beam and the elastic member are simultaneously elastically deformed in the height direction, and the load force is transmitted to the load sensor via the base platform. The base platform is floatingly supported on the housing by the elastic beam, so that a high sensitivity of the load sensor may be enabled and the load sensor may be prevented from damage caused by excessive load.

FORCE SENSOR AND MULTIAXIAL FORCE/TORQUE SENSOR USING THE SAME

Provided herein is a method and apparatus describing a force sensor that includes a ground unit that is a grounded conductor that changes its position according to an external force, and including a flat panel module that is a conductor of a flat panel shape, and a protruding module that is a conductor protruding from a lower surface of the flat panel module, a substrate of a flat panel shape arranged in a predetermined distance from the lower surface of the flat panel module, and having a hole through which the protruding module may be inserted, a first electrode formed on an upper surface of the substrate, to generate a capacitance together with the flat panel module upon receiving power, and a second electrode formed on the substrate, to generate a capacitance together with the protruding module upon receiving power. 1. A force sensor comprising:a ground unit that is a grounded conductor that changes its position according to an external force, and including a flat panel module that is a conductor of a flat panel shape, and a protruding module that is a conductor protruding from a lower surface of the flat panel module;a substrate of a flat panel shape arranged in a predetermined distance from the lower surface of the flat panel module, and having a hole through which the protruding module may be inserted;a first electrode formed on an upper surface of the substrate, to generate a capacitance together with the flat panel module upon receiving power; anda second electrode formed on the substrate, to generate a capacitance together with the protruding module upon receiving power.2. The force sensor according to claim 1 ,wherein the distance between the protruding module and the first electrode is greater than the distance between the protruding module and the second electrode even when the position of the ground unit changes according to the external force.3. The force sensor according to claim 1 ,wherein the distance between the protruding module and the second ...

CAPACITANCE MEASURING DEVICE AND CAPACITANCE MEASUREMENT METHOD FOR DIELECTRIC ELASTOMER

A present invention provides a device capable of properly measuring the capacitance of a dielectric elastomer by variably manipulating the voltage applied to the dielectric elastomer. A capacitance estimating unit acquires current detection values at a plurality of sampling times in a current reduction period in which, when an output voltage of a power source changes, an energizing current of a dielectric elastomer increases and then gradually decreases according to the change in the output voltage, and estimates the capacitance of the dielectric elastomer on the basis of a model representing a correlation between the time-dependent change of the energizing current and the capacitance of the dielectric elastomer in the current reduction period, and the current detection values.

PRESSURE MEASUREMENT SYSTEMS AND METHODS WITH MOISTURE VAPOR CONTROL

In various embodiments, a support system includes a cover sheet with pressure-sensing mat. 1. A cover comprising:a spacer material comprising a first surface, a second surface and a thickness measured between the first surface and the second surface, the spacer material capable of absorbing ambient moisture;a vapor permeable material proximal to the first surface of the spacer material; anda pressure-sensing mat proximal to the second surface of the spacer material and capable of determining a change in thickness of the spacer material, the pressure-sensing mat is operatively associable with the spacer material and an air mover to regulate air flow through the spacer material based on the determined change in spacer material thickness in order to facilitate removal of moisture from the spacer material.2. The cover of claim 1 , wherein the air mover is configured to provide an air flow through the spacer material.34-. (canceled)5. The cover of claim 2 , wherein the air mover is configured to increase the air flow from an initial airflow at a time of pressure detection to a second air flow if the pressure-sensing mat detects a pressure above a threshold value that is representative of a spacer material compression sufficient to restrict air flow through the spacer material.6. (canceled)7. The cover of wherein the pressure-sensing mat comprises a first electrical conductor claim 1 , a second electrical conductor claim 1 , and a compressible dielectric between the first electrical conductor and the second electrical conductor.8. The cover of claim 7 , wherein the first electrical conductor is proximal to a lower surface of the pressure-sensing mat and the second electrical conductor is proximal to an upper surface of the pressure-sensing mat.9. (canceled)10. The cover of claim 1 , further comprising an indicator configured to provide an indication if the pressure-sensing mat detects a pressure above a threshold value.1112-. (canceled)13. The cover of claim 1 , wherein ...

PARALLEL REDUNDANT CAPACITIVE SENSING DEVICE

A capacitive detection device includes a set of several detection electrodes for each carrying out capacitive detection at a detection location. Each detection electrode is formed by at least a first measurement electrode and a second measurement electrode. The device also includes first detection electronics forming, with the first measurement electrodes, a first measurement channel, independent from a second measurement channel formed by second detection electronics with the second measurement electrodes. 1. A device for capacitive detection of an object , comprising: a set of capacitive detection electrodes , each carrying out a capacitive detection for a detection location of a detection surface , each detection electrode comprising at least one first and one second independent electrodes , called measurement electrodes , said device also comprising:first detection electronics for the first measurement electrodes of said assembly, forming with said first measurement electrodes a first detection channel, to polarize said first measurement electrodes at an alternating potential, called excitation potential, different from a ground potential, and measure a signal relative to a capacitance, called electrode-object capacitance, between each first measurement electrode and said object; andsecond detection electronics for the second measurement electrodes of said assembly, forming with said second measurement electrodes a second detection channel, to polarize said second measurement electrodes at said excitation potential and measure a signal relative to an electrode-object capacitance between each second measurement electrode and said object.2. The device according to claim 1 , characterized in that claim 1 , for at least one detection electrode claim 1 , the first and second measurement electrodes are juxtaposed in a non-interleaved manner.3. The device according to claim 1 , characterized in that claim 1 , for at least one detection electrode:one of the first and ...

Electromagnetic force balance

The coil that is installed on a lever is obtained from a flat coil, which is wound flat so as to generate upper and lower winding regions that are parallel to the direction that the lever extends along a vertical surface that is parallel to the direction that the lever extends. The magnetic circuit is provided with multiple plate-shaped permanent magnets that face the upper and lower winding regions of the flat coil and are magnetized in a direction that is orthogonal to the vertical surface, and yoke members that induce lines of magnetic force of the permanent magnets so that a magnetic flux of an orientation that is orthogonal to the vertical surface is generated.

BEARING, IN PARTICULAR FOR A MAGNETIC LEVITATION ASSEMBLY

A magnetic bearing assembly () comprises a first magnet assembly () for generating a first quadrupole magnetic field in a first plane and a second magnet assembly () for generating a second quadrupole magnetic field in a second plane. The second plane is arranged parallel to the first plane. The quadrupole magnetic fields exhibit in each case in the planes magnetic field axes arranged at an angle to one another between four poles. A longitudinal axis (A) is defined at right angles hereto by the centres of the quadrupole magnetic fields. At least one diamagnetic element () is arranged on the longitudinal axis (A). The first and second magnet assemblies () are arranged relative to one another in such a way that the first and the second quadrupole magnetic fields are rotated towards one another about the longitudinal axis (A) by an angular amount which is not a whole-number multiple of 90°. Such a bearing arrangement can be used in particular in a magnetic levitation assembly () with a lifting assembly (). 2. Bearing assembly according to claim 1 , with which the first and the second quadrupole magnetic fields are rotated in relation to one another by 5° to 85°.3. Bearing assembly according to claim 1 , with whichthe first and/or the second magnet assemblies comprise a number of magnetic segment elements arranged around the centre.4. Bearing assembly according to claim 3 , with whichthe magnetic segment elements are magnetized in the tangential and/or radial direction.5. Bearing assembly according to claim 3 , with which the magnetic segment elements are arranged in a Halbach array.6. Bearing assembly according to claim 3 , with whichthe magnet segment elements are configured in such a way that they extend by an angle region of the same size about the longitudinal axis,and the angular amount of the rotation corresponds to a whole-number multiple of the angle region of a magnet segment element.7. Bearing assembly according to claim 1 , with whicha third magnet assembly ...

WORKPIECE ALIGNMENT SYSTEM HAVING PRESSURE SENSORS FOR ASSESSING ALIGNMENT OF A WORKPIECE WITH A FIXTURE

The present disclosure is directed toward a workpiece alignment system that includes a fixture configured to receive a workpiece, and multiple sensors disposed at different locations along the fixture. Each of the sensors is configured to detect a force applied to the sensor and to output a signal indicative of the force applied. Based on the signal, the system determined whether a workpiece is aligned on the fixture. 1. A workpiece alignment system comprising:a fixture configured to receive a workpiece; anda plurality of sensors disposed at different locations along the fixture, wherein each of the sensors is configured to detect a force applied to the sensor and to output a signal indicative of the force applied.2. The workpiece alignment system of further comprising a controller communicably coupled to the plurality of sensors and configured to determine whether the workpiece is aligned on the fixture based on the signals from the plurality of sensors.3. The workpiece alignment system of claim 2 , wherein the controller is a programmable logic controller.4. The workpiece alignment system of wherein:the plurality of sensors are resistive pressure sensors, and the signal generated by the sensors are indicative of a resistance, andthe controller is configured to determine that the workpiece is aligned with a given pressure sensor in response to the resistance of the pressure sensor exceeding a predetermined contact threshold.5. The workpiece alignment system of claim 2 , wherein for each of the plurality of sensor claim 2 , the controller is configured to determine that the workpiece is aligned with the sensor in response to the force being applied to the sensor exceeding a predetermined threshold.6. The workpiece alignment system of claim 5 , wherein the controller is configured to determine that the workpiece is aligned on the fixture in response to the workpiece being aligned with each of the plurality of sensors.7. The workpiece alignment system of claim 1 , ...

COMPACT DIRECT MEASURING SYSTEM

An electromagnetic force-compensation direct measuring system () has a load receiver (), which is connected to a force-compensation device () via a power-transmission linkage. The system has a multipart parallel guide mechanism, which has at least two parallel-guiding members () spaced apart by the power-transmission linkage. The force-compensation device has at least one permanent magnet () and a coil () electrically connected to a controllable electrical circuit. At least one parallel-guiding member is electrically integrated in the controllable electrical circuit. The power-transmission linkage is designed as a single-part coil body () such that the coil is arranged on the coil body between the parallel-guiding members and is electrically connected to the controllable electrical circuit.

FORCE-SENSING CAPACITOR ELEMENTS, DEFORMABLE MEMBRANES AND ELECTRONIC DEVICES FABRICATED THEREFROM

The present disclosure relates to deformable membranes and force-sensing capacitor elements useful, for example, in electronic devices that include, for example touch screen displays or other touch sensors. The deformable membranes, generally, include a first, second and third layers, with a first arrangement of a plurality of first structures interposed between the first and third layers and a second arrangement of a plurality of second structures interposed between the second and third layers. At least a portion, but not all, of the plurality of first structures have first and/or second surfaces that each overlap through the thickness of the deformable membrane with one or more of the first surfaces or with one or more of the second surfaces of the plurality of second structures. Electrodes or one or more electrode pairs are incorporated into the deformable membrane layer(s) to form force-sensing capacitors. The present disclosure also relates to methods of making deformable membranes and force-sensing capacitor elements, and electronic devices, e.g. touch screen displays that include the deformable membranes and force-sensing capacitor elements. 1. A deformable membrane comprising:a first layer having first and second major surfaces;a second layer having first and second major surfaces;a third layer having first and second major surfaces interposed between the second major surface of the first layer and the second major surface of the second layer;a first arrangement comprising a plurality of first structures, with corresponding first void regions, interposed between the second major surface of the first layer and the first major surface of the third layer, wherein each first structure has a first surface facing the second major surface of the first layer and a second surface facing the first major surface of the third layer; and i) from about 1% to about 99% of the plurality of first structures have first surfaces that each overlap through the thickness of the ...

TEMPERATURE MODULATED THERMOGRAVIMETRIC ANALYSIS

A sample is analyzed by temperature-modulated thermogravimetric analysis (TMTGA), using a thermogravimetric analysis (TGA) instrument. The TGA instrument comprises a furnace arranged in a furnace housing and an electronic balance with a load receiver arranged in a balance housing, wherein the load receiver extends into the furnace housing. A measuring position is arranged at one end of the load receiver within the furnace housing. A control unit controls the balance and/or the furnace. The TMTGA method includes at least using the TGA instrument to subject the sample to a temperature program that varies the temperature of the furnace and provides temperature-time setpoints for controlling the sample temperature, measuring the mass change of the sample as a function of time, and determining at least one kinetic parameter of the sample based on mass change. The temperature program may be stochastic and/or event-controlled in nature. 2. The method of claim 1 , further comprising the step of determining the sample temperature as a function of time using a temperature sensor arranged in the vicinity of the measurement position.3. The method of claim 1 , wherein:the temperature program includes at least a stochastic program; andthe characteristic time of modulation of the stochastic temperature perturbation fluctuates randomly.4. The method of claim 3 , wherein:the stochastic temperature perturbation comprises pulse sequences, each having a pulse length that represents the characteristic time of modulation, each pulse length generated by a random number generator to be between a predetermined minimum and a predetermined maximum.5. The method of claim 1 , wherein:the temperature program includes at least a stochastic program; andthe temperature program varies an intensity of the stochastic temperature perturbation.6. The method of claim 1 , wherein:the temperature program includes at least an event-controlled program; and the characteristic time of modulation, and', 'the ...

OPTICAL FINGERPRINT SENSOR WITH FORCE SENSING CAPABILITY

A device is provided to include a display panel and an optical sensor module. The optical fingerprint sensor can detect an contact input and generate a signal indicative of an image of the fingerprint and to generate a signal indicative of a biometric marker different form the fingerprint. The generated sensor signal includes the signal indicative of the image of the fingerprint and the signal indicative of the biometric marker different from the fingerprint. The optical sensor module can capture different fingerprint patterns at different times to monitor time-domain evolution of the fingerprint ridge pattern deformation that indicates time-domain evolution of a press force from the contact input. The sensing circuitry can process the generated sensor signal to determine whether the contact input associated with the fingerprint belongs to a finger of a live person. 1. An electronic device having an optical fingerprint sensing module , comprising:a display panel that displays images and contents and receives user contact inputs; andan optical sensor module placed underneath the display panel and configured to detect a presence of a received contact input associated with a fingerprint to generate a first signal indicative of an image of a spatial pattern of the fingerprint and a second signal indicative of a biometric marker that is different from the spatial pattern of the fingerprint and represents a property of a live person, the optical sensor module including an optical sensor array positioned to receive reflected probe light that carries information of the received contact input and to produce an optical sensor signal,wherein the optical sensor module captures different fingerprint patterns at different times to monitor time-domain evolution of the fingerprint ridge pattern deformation that indicates time-domain evolution of a press force from the contact input.2. The device of claim 1 , wherein the optical sensor module is structured to measure returned probe ...

FORCE SENSOR

The present invention is to provide a capacitive force sensor that is inexpensive but highly sensitive, and is hardly affected by temperature changes and in-phase noise in the use environment. 1. A force sensor comprising:a deformable body that includes a force receiving portion and a fixed portion, and is elastically deformed by a force acting on the force receiving portion;a displacement body that is connected to the deformable body, and is displaced by elastic deformation caused in the deformable body; anda detection circuit that detects an applied force, in accordance with a displacement caused in the displacement body,whereinthe deformable body includes:a tilting portion that has a longitudinal direction and is disposed between the force receiving portion and the fixed portion;a first deformable portion formed in curved shape, the first deformable portion connecting the force receiving portion and the tilting portion; anda second deformable portion formed in curved shape, the second deformable portion connecting the fixed portion and the tilting portion,the first deformable portion is disposed on one side of the tilting portion,the second deformable portion is disposed on the other side of the tilting portion,a connecting portion between the first deformable portion and the tilting portion, and a connecting portion between the second deformable portion and the tilting portion differ in position in the longitudinal direction of the tilting portion,the displacement body includes a displacement portion that is connected to the tilting portion and is at a distance from the fixed portion, the displacement portion being displaced by a tilting movement of the tilting portion, andthe detection circuit includes a capacitive element disposed at the displacement portion, and detects an applied force in accordance with a change in a capacitance value of the capacitive element.2. The force sensor according to claim 1 , wherein the displacement body includes a beam that ...

SENSING POLYMER STRUCTURAL BODY

A sensing polymer structural body includes a structural body, a sensor, and a power generating portion. The structural body is made of a polymer material. The sensor is embedded in the structural body and is deformed together with the structural body by an external force, that the sensor being configured to output a signal in accordance with the deformation. The power generating portion is deformed together with the structural body by the external force, and the power generating portion is configured to generate electric energy based on the deformation. The sensor is provided inside the structural body in a linear direction or in a planar direction. The sensor and the power generating portion are disposed such that the sensor and the power generating portion are deformable based on the deformation of the structural body. 1. A sensing polymer structural body comprising:a structural body made of a polymer material;a sensor that is embedded in the structural body and is deformed together with the structural body by an external force, that the sensor being configured to output a signal in accordance with the deformation; anda power generating portion that is embedded in the structural body and is deformed together with the structural body by the external force, that the power generating portion being configured to generate electric energy based on the deformation, whereinthe sensor is provided inside the structural body in a linear direction or in a planar direction, and the sensor and the power generating portion are disposed at positions at which the sensor and the power generating portion are deformable in accordance with the deformation of the structural body.2. The sensing polymer structural body according to claim 1 , wherein the sensor and the power generating portion are disposed overlapping with each other in a direction of the external force.3. The sensing polymer structural body according to claim 1 , wherein the sensor and the power generating portion each ...

DIELECTRIC GEOMETRY FOR CAPACITIVE-BASED TACTILE SENSOR

A dielectric for a capacitive-based tactile sensor of the type having a pair of spaced apart conductive plates with the dielectric conductively therebetween, comprises a body of a non-rigid dielectric polymeric material. The body is shaped into a microstructure defined by a plurality of members adapted to extend from one of the conductive plates to the other. Some of the members comprises a first feature shaped to have a first end surface and a second end surface. Second features are integral with the first feature and project from the second end surface. A cross-section area of each of the second features is substantially smaller than a cross-section area of the first feature at the second end surface. A height of the first feature in a distance between the conductive plates is substantially greater than a height of the second features. A capacitive-based tactile sensor with the dielectric is also provided. 1. A dielectric for a capacitive-based tactile sensor of the type having a pair of spaced apart conductive plates with the dielectric conductively therebetween , the dielectric comprising: a first feature shaped to have a first end surface and a second end surface;', 'at least two second features integral with the first feature and projecting from the second end surface;', 'a cross-section area of each of the second features being substantially smaller than a cross-section area of the first feature at the second end surface; and', 'a height of the first feature in a distance between the conductive plates being substantially greater than a height of the second features., 'a body of a non-rigid dielectric polymeric material, the body being shaped into a microstructure defined by a plurality of members adapted to extend from one of the conductive plates to the other, at least some of the members comprising2. The dielectric according to claim 1 , wherein the first feature is generally shaped as a truncated cone.3. The dielectric according to claim 1 , wherein the ...

PRESSURE DETECTION STRUCTURE AND TERMINAL DEVICE

The present application discloses a pressure detection structure and a terminal device. The pressure detection structure includes a cover, a display screen, a pressure sensor and a middle frame, the display screen and the cover being sequentially stacked in the middle frame from bottom to top; wherein: the pressure sensor is fixed to the display screen; the display screen includes a lower glass layer, an LED light emitting layer and an upper glass layer which are sequentially stacked from bottom to top; and the pressure sensor is positioned beneath the lower glass layer. Thus, the tolerance to be controlled mainly lies in the thickness of the gap layer inside the display screen, and the flatness of the pressure sensor. Hence, the assembling tolerance is reduced, and the stability, reliability and consistency of pressure detection by the terminal device are improved. 1. A pressure detection structure , comprising:a cover;a display screen;a pressure sensor; anda middle frame;the display screen and the cover being sequentially stacked in the middle frame from bottom to top;wherein: the pressure sensor is fixed to the display screen; the display screen comprises a lower glass layer, an LED light emitting layer and an upper glass layer which are sequentially stacked from bottom to top; and the pressure sensor is positioned under the lower glass layer.2. The pressure detection structure according to claim 1 , wherein: a pressure-deformable gap layer is arranged between the pressure sensor and the lower glass layer.3. The pressure detection structure according to claim 2 , wherein: the gap layer is a flexible filler layer claim 2 , the flexible filler layer being connected to the lower glass layer; and the pressure sensor is connected to the flexible filler layer.4. The pressure detection structure according to claim 2 , wherein: an edge of the pressure sensor is adhered to the lower glass layer claim 2 , the gap layer is a gap formed between the pressure sensor and the ...