РУЧНОЙ ПОЛЕВОЙ ГИДРАВЛИЧЕСКИЙ ПРЕСС ДЛЯ КАЛИБРОВКИ ДАТЧИКОВ НАПРЯЖЕНИЯ ВО ЛЬДУ

Ручной полевой гидравлический пресс для калибровки датчиков напряжения во льду, содержащий камеру с рабочим поршнем и пуансоном, штуцеры для установки манометра и датчика давления, гидравлический усилитель, два горизонтальных задающих цилиндра с винтовой подачей поршней, отличающийся тем, что в состав пресса включен толстостенный стальной бокс, на котором закрепляется пресс, а внутри бокса вставлена подвижная стальная плита.

ПРЕСС ТЕХНОЛОГИЧЕСКИЙ

Заявляемая полезная модель относится к исследованию прочностных свойств твердых материалов путем приложения к ним механических усилий, более конкретно, для изготовления образцов в форме таблеток, которые необходимы для проведения спектрального анализа шлаков металлургического производства. Целью предполагаемой полезной модели является повышение производительности изготовления таблеток. Схема пресса включает в себя столик 1, каркас 2, нагружающее устройство 3 с поворотной траверсой 4, основание 5 с закрепленным на нем неуплотненным цилиндром одностороннего действия 6, корпус 11, в котором расположена прессформа 7; блок гидроаппаратуры 8 в составе предохранительного клапана, гидрораспределителя, сигнализирующего манометра и реле времени, установку насосную 9, колонны 10, плунжер прессующий 12, плунжер верхний 13, плунжер нижний 14, плунжер выталкивающий 15 и систему управления.

УСТАНОВКА ДЛЯ ИСПЫТАНИЯ ТРУБЧАТЫХ ОБРАЗЦОВ

Способ определения прочности льда в натурных условиях

Заявленный способ определения прочности льда в натурных условиях относится к ледоведению и ледотехнике. Заявленный способ определения прочности льда в натурных условиях заключается в определении локальной прочности льда в скважинах и прочности образцов льда, при этом прочность льда в скважинах и на образцах определяется в непосредственной близости друг от друга, а образцы льда отбираются из блока льда, вырезанного на всю толщину ледяного покрова и на уровнях, совпадающих с проведением испытаний в натурных условиях в скважинах. Технический результат заключается в повышении точности измерений прочности льда и достигается путем проведения статистически значимого количества измерений прочности льда в натурных условиях в скважинах (локальная прочность) и определения прочности ограниченного количества образцов, подготовленных из льда, вырезанного в месте проведения испытаний.

МАШИНА СИЛОВОСПРОИЗВОДЯЩАЯ ЭТАЛОННАЯ

Изобретение относится к метрологической технике, а именно к технике обеспечения единства измерения силы. Техническим результатом является упрощение конструкции устройства. Машина силовоспроизводящая эталонная состоит из нагружающего модуля, включающего силовую раму, образованную основанием с силовыми гидроцилиндрами с поршнями-колоннами и траверсой, реверсной рамы, соосной с силовой рамой и снабженной устройством установочного перемещения ее относительно траверсы силовой рамы, опирающейся на траверсу силовой рамы через посредство эталонного датчика силы сжатия, и соединяемую поверяемым датчиком силы растяжения с основанием, системы гидропривода нагружения системы управления, системы индикации силы нагружения штатного эталонного датчика силы, электрических и гидравлических линий связей агрегатов и блоков машины. Машина силовоспроизводящая эталонная снабжена расположенной в рабочей зоне силовой рамы дополнительной траверсой, жестко связанной посредством колон-стоек с основанием силовой рамы ...

МАШИНА СИЛОВОСПРОИЗВОДЯЩАЯ ЭТАЛОННАЯ

Машина силовоспроизводящая эталонная, состоящая из нагружающего модуля, включающего силовую раму, образованную основанием с силовыми гидроцилиндрами с поршнями-колоннами и траверсой, реверсной рамы, сосной с силовой рамой и снабженной устройством установочного перемещения ее относительно траверсы силовой рамы, опирающейся на траверсу силовой рамы через посредство эталонного датчика силы сжатия, и соединяемую поверяемым датчиком силы растяжения с основанием, системы гидропривода нагружения системы управления, системы индикации силы нагружения штатного эталонного датчика силы, электрических и гидравлических линий связей агрегатов и блоков машины, отличающаяся тем, что она снабжена расположенной в рабочей зоне силовой рамы дополнительной траверсой, жестко связанной посредством колон-стоек с основанием силовой рамы и образующей с нижней поперечиной реверсной рамы зону установки поверяемых датчиков силы (динамометров) сжатия.

Универсальная испытательная машина

Датчик напряжений

Изобретение относится к измерительной технике и предназначено для исследования постоянных или медленно меняющихся напряжений в упругих, вязко- упругих и сыпучих средах. Целью изобретел S,S н / / У v V S/Y , I ,, S//s т т 4J S Zs X ния является измерение касательных напряжений . Датчик содержит корпус, внутри которого размещены силовоспринимающая площадка 6, отделенная от корпуса зазором , заполненным упругой эластичной средой 8, 9, и связанная с корпусом посредством двух балок 7 с упругими шарнирами на концах, рычаг 19, шарнирно сое- диненый с силовоспринимэющей площадкой 6, корпусом, арретиром и задат- чиком компенсирующего усилия, выполнен- ным в виде двух сильфонов 14 и 15, размещенных симметрично-соосно и перпендикулярно оси рычгга 19. а на боковой поверхности площадки имеется выступ, изолированный от площадки, снабженный выводом и касающийся корпуса. 2 з.п.ф-лы. Зил. Y , I ,, 4J S Zs X fc ё ...

Гидравлический динамометр

Компенсационная диафрагменная месдоза

Устройство для измерения радиального давления контактных уплотнений

Устройство для синтеза речи

Устройство для измерения усилий, действующих на мост автомобиля

Силоизмерительный датчик

Установка для контроля упругости пружинных элементов

Прибор для определения сил сцепления модели с земляной формой

Пневматический интегратор усилия

Прибор для определения давления фрезы при ее работе

Прибор для оценки жесткости круглых пил

Динамометр для определения упругих свойств резины в процессе вулканизации методом газообразования

CПOCOБ OПPEДEЛEHИЯ ФAЗOBЫX ПEPEXOДOB ПEPBOГO POДA

Способ измерения нормальных напряжений в нелинейно-деформируемых упруго-пластичных средах

Устройство для измерения усилий затяжки резьбовых соединений

Устройство для измерения натяжения пленочных и тканевых материалов

Изобретение относится к измерительной технике и позволяет повысить точность измерения натяжения материалов . К испытываемому материалу 1 вакуумный стакан 2 прикладывается открытой частью, кромка которой выполнена в виде прямоугольника с соотношением сторон в пределах 2-3. Датчик деформации - индикатор часового типа 4, размещенный в дне стакана, измеряет величину прогиба материала 1. .внутри стакана 2, вызванного разрежением воздуха в нем. Необходимое разрежение поддерживается регулированием сечения отверстия 7 отсасывающей трубки 6 путем перемещения кольца 8. Ось чувствительного датчика деформации совмещена с продольной осью симметрии стакана 2. 3 ил. I сл в cpus.l ...

Датчик для определения напряжений в бетоне при его усадке

ДАТЧИК ДЛЯ ОПРЕДЕЛЕНИЯ НАПРЯЖЕНИЙ В БЕТОНЕ ПРИ ЕГО УСАДКЕ , содержащий корпус в виде цилршдрического кольца, амортизирзтощие прокладки , установленные на торцовых поверхностях корпуса, и преобразователь давления в электрический сигнал, отличающий ся тем, что, с целью повышения точности измерения, отношение наружного диаметра корпуса к его высоте находится в пределах 3-3,5.

Переключатель пределов измерения

Устройство для преобразования силы в давление

ПРИСПОСОБЛЕНИЕ К ПРОКАТНОМУ СТАНУ ДЛЯ ОПРЕДЕЛЕНИЯ ДАВЛЕНИЙ И ТРЕНИЯ ПРИ ПРОКАТКЕ

Прибор для определения деформативных свойств в бетонном массиве

Стенд для испытания ручных ударных инструментов

Гидравлический динамометр

Гидравлический преобразователь силы

Устройство для измерения контактных давлений

Устройство для измерения контактного усилия эластомерных уплотнений

Гидравлическая компенсационная месдоза

Установка для определения коэффициента удельного упругого отпора скальных пород

Устройство для измерения усилий в анкерной крепи

Гидродатчик

Способ испытания керамических изоляторов и устройство для его осуществления

Изобретение относится к области приборостроения и может быть использовано при испытании изоляторов на изгиб. .С целью повышения производительности процесса испытания изоляторов, одновременно с приложением к изолятору испытательной нагрузки осуществляется его вращение вокруг продольной оси в результате применения устройства, в котором рычаги с кулачковыми патронами снабжены приводом вращения, гидроцилиндры, создающие испытательную нагрузку, снабжены роликами, сопряженными со сферическими бандажами. 1 ил..

LASTABHAENGIGER BREMSKRAFTREGLER FUER DRUCKLUFTBREMSEN, INSBESONDERE FUER EISENBAHNFAHRZEUGE

KRAFTMESSGERAET FOR ANCHORS IN THE BUILDING INDUSTRY

DYNAMOMETER

SENSOR AND CONVERTER DEVICE

LOAD CELL AND HEREBY EQUIPPING BRAKE MECHANISM.

PROCEDURE AND DEVICE FOR THE PRODUCTION OF INSERTS OR SUCH A THING.

DYNAMOMETER.

WEICHENSTELLKRAFTBOLZEN MIT ASYMMETRISCHER KRAFTEINLEITUNG

HYDRAULIC KRAFTMESSER.

FORCE RECEIVER

INCREMENTAL APPLICATION OF DEAD WEIGHT MASSES

FORCE, TORQUE AND DISPLACEMENT SENSOR FOR MACHINE TOOLS

Verfahren und Vorrichtung zum Übertragen von Druckkräften.

Dispositif de mesure.

Einrichtung zum Messen von Kräften

Hydraulischer Kraftmessapparat.

Vorrichtung für das Messen veränderlicher Belastungen.

Verfahren zur Messung der im Material eines Baukörpers auftretenden Spannung.

Einrichtung zum Messen von Kräften

Verfahren zum Messen von Spannungen, Temperaturen, Porenwasserdruck, Dehnungen, Verschiebungen oder Fugenoeffnungen in Kunstbaustoffen und Vorrichtung zur Durchfuehrung des Verfahrens

Druckmessvorrichtung für Käsepressen.

Einrichtung zur Messung einer Last mittels eines gasförmigen Druckmediums und Verwendung der Einrichtung an einem Wägeapparat

Kraftmessdose

Hydraulischer Kraftmesser mit eingeschliffenem Stempel.

Anordnung zur Übertragung einer Kraft auf mindestens ein als Wandler ausgebildetes druckempfindliches Organ und Verfahren zur Herstellung der Anordnung

Vorrichtung zur Messung des radialen Auflagedruckes von Kolbenringen in ihrer Einbaulage

Messeinrichtung zur Messung einer Kraft und Verwendung derselben

Kraftmessdose zur Messung von statischen Kräften, insbesondere von Stützreaktionskräften an Eisenbahnfahrzeugen

Kraft-Druck-Umformer zur Erzeugung eines Drucksignales

Wiegevorrichtung

Dispositif de pesée piézométrique

Vorrichtung zum Geben von Signalen in Abhängigkeit vom Mittelwert einer veränderlichen Druckkraft

Kraftmesseinrichtung

Pressure cell.

BALANCE.

HYDRAULIC PRESSURE ABSORBER.

WEDGE-SHAPED OR CONICAL SENSOR FOR POWER MEASUREMENT.

Device of survey of the variation of the pressure reigning in a flexible tube filled up of liquid and employment of the device in an organ of pilotage of a vehicle.

Linvenzione concerne un dispositivo di rilevamento della variazione della pressione in un tubo (1) riempito di liquido nonché il suo impiego in un organo di pilotaggio di un veicolo quale motociclo, automobile, barca, aereo, ecc. Linvenzione è caratterizzata dal fatto che il tubo (1) è sigillato ermeticamente ad entrambe le estremità (2, 3) e che la pressione viene rilevata mediante un rilevatore di variazione della pressione (5) comprendente un estensimetro (6) agente direttamente sullesterno del tubo (1) ed in grado di trasformare le deformazioni di rigonfiamento del tubo (1), in un suo punto qualsiasi, in un valore elettrico significativo per la pressione regnante nel tubo (1) e dunque per la deformazione cui è stato sottoposto il tubo (1) in seguito al suo schiacciamento locale. Il vantaggio dellinvenzione consiste nella sua affidabilità, nel basso costo e nella possibilità di eseguire le opportune operazioni di manutenzione in modo semplice e rapido.

Device of survey of the variation of the pressure reigning in a flexible tube filled up of liquid and employment of the device in an organ of pilotage of a vehicle.

Linvenzione concerne un dispositivo di rilevamento della variazione della pressione in un tubo (1) riempito di liquido nonché il suo impiego in un organo di pilotaggio di un veicolo quale motociclo, automobile, barca, aereo ecc. Linvenzione è caratterizzata dal fatto che il tubo (1) è sigillato ermeticamente ad entrambe le estremità (2, 3) e che la pressione viene rilevata mediante un rilevatore di variazione della pressione (5) comprendente un estensimetro (6) agente direttamente sullesterno del tubo (1) ed in grado di trasformare le deformazioni di rigonfiamento del tubo (1), in un suo punto qualsiasi, in un valore elettrico significativo per la pressione regnante nel tubo (1) e dunque per la deformazione cui è stato sottoposto il tubo (1) in seguito al suo schiacciamento locale. Il vantaggio dellinvenzione consiste nella sua affidabilità, nel basso costo e nella possibilità di eseguire le opportune operazioni di manutenzione in modo semplice e rapido.

Hydraulic pressure absorber

The armature is a spring steel strip (11) inside the ducting (1) around a rigid tube (2) of e.g. brass. It may be bonded to the appropriate wall of the ducting (1), e.g. by vulcanisation. Alternatively it is be bonded to the outside of the top of the ducting, partially overlapping its two sides. A treadle (13) may be laid over a number of such transducers and connected to an arrangement for processing the pressure signals, e.g. for orthopaedic diagnosis. The such transducers may be arranged parallel to each other under a weightscale and connected in a pressure-difference circuit.

FORCE MEASURING DISK WITH INSERTED PRESSURE SENSOR.

ИЗМЕРИТЕЛЬ СИЛЫ

Измеритель силы имеет корпус с полостью, заполненной средой и соединенной с источником ее подачи, и кожух, который охватывает корпус. Кроме этого, полость плотно закрыта крышкой, соединена с манометром и краном сброса давления, а к кожуху прикреплены тензометрические датчики, соединенные с системой контроля.

Устройство контроля напряжений капиллярно-пористых гигроскопических материалов в процессе гидротермической обработки

Устройство контроля напряжений капиллярно-пористых гигроскопических материалов в процессе гидротермической обработки содержит параметрический дистанционный преобразователь для контроля дифференциальной усадки по значениям усадки в средней и крайней точках кромки, дифференциальный емкостный преобразователь для измерения дифференциальной усадки, в котором неподвижные пластины конденсаторов закреплены на кромке доски. Подвижная пластина перемещается между неподвижным одним плечом рычага, второе плечо которого прижимается упором к одной, а ось - к другой точке контроля дифференциальной усадки.

Гидравлический силоизмеритель

... 1. Гидравлический силоизмеритель, содержащий заполненный жидкостью полый цилиндрический корпус, выполненный в виде жесткого стакана, герметизирующий элемент, чувствительный упругий элемент, нагружатель в виде ступенчатого цилиндрического поршня с верхней силоприемной ступенью и нижними силопередающими ступенями, контактирующими с жидкостью и чувствительным упругим элементом, наладочно-регулирующее и отсчетное устройства,отличающийся тем, что герметизирующий элемент и чувствительный упругий элемент совмещены в одной нежестко связанной с корпусом эластичной втулке, установленной в выполненной в корпусе расточке заподлицо с внутренним диаметром корпуса, поршень выполнен четырехступенчатым и дополнительно содержит верхнюю силоприемную ступень, выполненную в виде кольцеобразного торца, одна из нижних силопередающих ступеней выполнена конической и контактирует с коническим торцем эластичной втулки, а вторая выполнена в виде цилиндрического выступа и контактирует с жидкостью. Фиг. 2 ...

Un-disassembly pressure detector of hydraulic mechanical equipment

Vacuum suction type thoracic cavity liquid extracting and pressure testing machine

Liquid capsule type soil stress test device

Conversion control device for hydraulic pressure cracking ground stress measurement waterway

Pressure measuring device and method

Convergence monitoring system for deeply-covered horizontal duck-egg-shaped deformation operation tunnel

The invention provides a deep earthing transverse duck egg-shaped deformation operation tunnel convergence monitoring system, which comprises an annular steel sheet system, a reinforced concrete net rack, a pipe piece, a horizontal pulling telescopic arm system, an anchor rod connecting system, a frog-shaped supporting leg, a lateral supporting hydraulic cylinder, a hydraulic connecting system, a grouting system and a workbench, a reinforced concrete net rack is laid on the circumferential periphery of each duct piece in advance when the duct pieces are prefabricated, and during grouting construction operation, high-pressure composite cement grout of a grouting system is filled in a gap part between the outer wall of the horizontally-pulled tunnel duct piece and a soil layer; and the capability of controlling convergence deformation by stretching the duct pieces in the tunnel and pushing the duct pieces through external high-pressure grouting is achieved. The device has the advantages of ...

Device for the measurement of the hydraulic loads

Sophisticated dynamometer and its applications, in particular like apparatus of weighing

Intra-abdominal pressure sensor for human dummies

La présente invention concerne les capteurs de pression intra-abdominale 1 pour mannequin anthropomorphe 2. Le capteur selon l'invention se caractérise essentiellemnt par le fait qu'il comporte un support 10, des moyens de fixation 11 d'au moins un point 34 du support sur le mannequin 2, une enveloppe étanche 16 en un matériau relativement souple, des moyens pour fixer l'enveloppe sur le support, un fluide incompressible 24 remplissant l'enveloppe, et un détecteur 26 apte à délivrer à sa sortie 27 un signal d'information représentatif de la pression du fluide 24 dans l'enveloppe. Application, notamment, à l'étude des effets produits, par les ceintures de sécurité, sur la masse intra-abdominale des êtres humains dans les véhicules de transport comme les automobiles, les aéronefs, etc.

BALANCE, IN PARTICULAR BALANCE TO MEASURE the LOAD Of a WHEEL OF VEHICLE.

Device of dynamometric cell hydraulic with rubber disc

DEVICE OF MEASUREMENT FOR THE SEIZURE OF THE LOAD OF STAGE APPLIQUEE ON A STAGE OF CYLINDER

Le dispositif de mesure selon l'invention, destiné à saisir la charge de palier d'un palier de cylindre, présente deux surfaces de palier s'engageant l'une dans l'autre avec un ajustement à jeu. Sont prévus deux détecteurs comportant chacun au moins une chambre de pression pouvant être alimentée en pression par une source de fluide de pression P et chargeant les surfaces de palier. Dans au moins l'un des détecteurs, la chambre de pression est réalisée sous la forme d'une cavité de fluide de pression 15, 16 qui est reliée à un écoulement de retour 21 par l'intermédiaire de la fente 22, 23 formée entre les surfaces de palier. Les pressions régnant dans les chambres de pression constituent les valeurs de mesure à exploiter. Cela autorise une saisie simple et insensible aux pannes, de la charge de palier. The measuring device according to the invention, intended to capture the bearing load of a cylinder bearing, has two bearing surfaces engaging one with the other with a clearance adjustment. Two detectors are provided, each comprising at least one pressure chamber capable of being supplied with pressure by a source of pressure fluid P and charging the bearing surfaces. In at least one of the detectors, the pressure chamber is produced in the form of a pressure fluid cavity 15, 16 which is connected to a return flow 21 via the slot 22, 23 formed between bearing surfaces. The pressures in the pressure chambers constitute the measurement values to be used. This allows simple and fault-tolerant entry of the bearing load.

LOAD CELLS PARTICULARLY FOR DETERMINING COMPRESSION FORCES IN MINE SUPPORTS

Sensor pad for controlling airbag deployment and associated support

A weight sensing pad for controlling activation of an automobile airbag, the weight sensing pad comprising a bladder member having an interior volume defined by first and second sheets perimetrically bonded together, wherein the interior volume of the bladder member is subdivided into a plurality of cells by a plurality of small, substantially circular welds between the first and second sheets, the plurality of cells being in fluid communication with each other; and a fluid contained within the interior volume of the bladder member, whereby the automobile airbag is activated upon a change in pressure caused by displacement of a volume of the fluid in the interior volume of the bladder.

Method of determining the static force developed by a servo-control

The present invention relates to a method of determining the static force developed by a servo-control ( 10 ) having an actuator ( 20 ) and a hydraulic distributor control valve ( 30 ), said actuator ( 20 ) including at least one cylinder ( 21 ) and a slidable element ( 25 ). The instantaneous travel speed of said slidable element ( 25 ) relative to said cylinder ( 21 ) is measured and said static force is determined with the help of: the following first relationship when the instantaneous travel speed is positive: F = F max * [ 1 - ( V 2 V max 2 ) ] the following second relationship when the instantaneous travel speed is negative: F = - F max * [ 1 - ( V 2 V max 2 ) ] where F represents the instantaneous static force developed by the servo-control ( 10 ), F max represents the predetermined maximum static force, V 2 represents the measured instantaneous travel speed raised to the second power, and V 2 max represents the maximum travel speed of said slidable element ( 25 ) relative to said cylinder ( 21 ) raised to the second power.

DEVICE FORMING A PRESSURE SENSOR, METHOD FOR PRODUCING SUCH A SENSOR AND APPLICATION IN THE PRODUCTION OF A TOUCH SCREEN

A device forming a pressure sensor is provided. The device includes: a substrate made of electrical insulation material including a first reservoir, a second reservoir in communication with the first reservoir and of which two internal walls are each equipped with an electrode, and a flexible membrane made of an electrical insulation material, including a protuberance and secured to the substrate so as to enable movement of the protuberance between a position in which it is at a distance from a liquid filling the first reservoir and at least one second position in which it exerts a pressure on the liquid, thus discharging it at least partially from the first reservoir toward the second reservoir with mechanical contact with the two electrodes, the mechanical contact of the liquid with the electrodes establishing a resistance or capacitance between the electrodes. Application in the production of a touch screen is also provided. 1. A pressure sensor device comprising:a substrate comprising an electrical insulation material, said substrate further comprising a first reservoir, a second reservoir in communication with the first reservoir and of which two internal walls are each equipped with an electrode;a flexible membrane comprising, an electrical insulation material, said flexible membrane comprising a protuberance and secured to the substrate so as to enable movement of the protuberance between a position in which it is at a distance from a liquid filling the first reservoir and at least one second position in which it exerts a pressure on the liquid, thus discharging it at least partially from the first reservoir toward the second reservoir with mechanical contact with the two electrodes, said mechanical contact of the liquid with the two electrodes establishing a resistance or capacitance between the two electrodes.2. The device according to claim 1 , wherein the electric insulation substrate has such a thickness that it is flexible.3. The device according to ...

FORCE CALCULATING SYSTEM

The force calculation system of the present invention is provided with: an air blowing unit for blowing air at a predetermined pressure; a flow passage for air blown from air blowing unit; a sensing unit for changing the ease of flow of air that flows through a flow passage by deforming when an external force is given; a storage unit for storing in advance the flow volume-force correspondence information showing the correspondence between the magnitude of the force received by the sensing unit and the flow volume at which air blown from air blowing unit flows through the flow passage; and a processing unit for calculating the magnitude of external force received by the sensing unit, on the basis of the flow volume of air flowing through the flow passage as measured by a flow volume meter; and the flow volume-force correspondence information stored in the storage unit. 1. A force calculation system comprising:an air blowing unit for blowing air at a predetermined pressure,a flow passage connected to the air blowing unit for blowing air,a sensing unit arranged in an end portion of the flow passage on a side opposite to the air blowing unit wherein an ease of flow of air is changed by deformation due to an external force,a flowmeter measuring flow volume of air flowing through the flow passage,a memory unit for storing in advance information of a correspondence relation between a strength of an external force at the sensing unit and the flow volume of air flowing through the flow passage from the air blowing unit, anda processing unit for calculating the strength of the external force applied to the sensing unit based on the flow volume of air flowing through the flow passage as measured by the flowmeter and the information of the correspondence relation stored by the memory unit,wherein the sensing unit comprises an aperture tucking the flow passage down,the aperture is made of an elastic body wherein a width of the aperture is changed by the external force,the flow ...

COMPLIANT TACTILE SENSOR WITH FLUID-FILLED, SPONGE-LIKE MATERIAL

A compliant tactile sensor may include sponge-like material, a flexible skin, and a fluid pressure sensor. The flexible skin may have a shape, absorb fluid, compress in response to force applied to the sponge-like material, and decompress and return to its original shape when the force is removed. The flexible skin may cover an outer surface of the sponge-like material. The fluid pressure sensor may sense changes in pressure in fluid that is within the sponge-like material caused by a force applied to the flexible skin. 1. A compliant tactile sensor comprising:sponge-like material that has a shape, that absorbs fluid, that compresses in response to force applied to the sponge-like material, and that decompresses and returns to its original shape when the force is removed;a flexible skin covering an outer surface of the sponge-like material; anda fluid pressure sensor that senses changes in pressure in fluid that is within the sponge-like material caused by a force applied to the flexible skin.2. The compliant tactile sensor of further comprising a fenestration that connects the sponge-like material to the fluid pressure sensor and allows fluid to flow between the sponge-like material and the fluid pressure sensor.3. The compliant tactile sensor of wherein the sponge-like material is an open-cell foam.4. The compliant tactile sensor of wherein the flexible skin is made of the same material as the foam and is integral to the sponge-like material.5. The compliant tactile sensor of wherein the sponge-like material is an engineered material that has a repeating pattern of cells.6. The compliant tactile sensor of wherein the flexible skin constitutes a coating on the sponge-like material.7. The compliant tactile sensor of wherein the flexible skin is impermeable to the fluid.8. The compliant tactile sensor of wherein the sponge-like material and the flexible skin are both permeable to the fluid claim 1 , but wherein the permeability of the flexible skin to the fluid is ...

BLOW COUNT OPTIMIZATION

A method of compacting soil via a base machine, the base machine having ram material provided at at least one cable and having a regulation/control apparatus, includes raising the ram material from the land area to be compacted, with a zero point being stored at which no slackline is present. The method further includes raising the ram material to a lift height, carrying out a compaction procedure by dropping the ram material from a drop height onto the land area to be compacted, again raising the ram material from the land area to be compacted, with a further zero point being stored at which no slackline is present, determining and storing a compaction progress, and repeating the previous steps until the compaction progresses of each of a predefined number of consecutive compaction procedures are smaller than or equal to a predefined minimum progress. 1. A method of compacting soil via a base machine having a ram material provided at at least one cable and having a regulation/control apparatus , the method comprising:raising the ram material from a land area to be compacted, with a zero point being stored at which no slackline is present;raising the ram material to a lift height;carrying out a compaction procedure by dropping the ram material from a drop height onto the land area to be compacted;again raising the ram material from the land area to be compacted, with a further zero point being stored at which no slackline is present;determining and storing a compaction progress; andrepeating the previous steps until the compaction progresses of a predefined number of consecutive compaction procedures are each smaller than or equal to a predefined minimum progress.2. The method in accordance with claim 1 , further comprising alerting an operator of the base machine claim 1 , via a display claim 1 , when the compaction progresses of the predefined number of consecutive compaction procedures is smaller than or equal to the predefined minimum progress.3. The method in ...

Pneumatic-based tactile sensor

A pneumatic-based tactile sensor according to an exemplary embodiment of the present invention includes: a tactile sense transmitting pneumatic unit for generating pneumatic pressure by an external load applied to a first side; and a tactile sense receiving sensor unit for measuring the load by transforming a magnitude of pneumatic pressure of the tactile sense transmitting pneumatic unit into a displacement.

A RESISTIVE MICROFLUIDIC PRESSURE SENSOR

A resistive microfluidic pressure sensor is provided which comprises a first layer comprising a microfluidic channel with a carbon-based conductive liquid and a second layer comprising at least two electrodes, the at least two electrodes being adapted to measure resistance of the carbon-based conductive liquid upon deformation of the microfluidic channel as a result of a change in force applied on a surface of the sensor. 1. A resistive microfluidic pressure sensor comprising:a first layer comprising a microfluidic channel, the microfluidic channel comprising a carbon-based conductive liquid; anda second layer comprising at least two electrodes, the at least two electrodes being adapted to measure resistance of the carbon-based conductive liquid upon deformation of the microfluidic channel as a result of a change in force applied on a surface of the sensor.2. The sensor according to claim 1 , wherein carbon-based conductive liquid comprises: graphene claim 1 , graphene oxide claim 1 , reduced graphene oxide claim 1 , graphite claim 1 , fullerene claim 1 , carbon nanotubes claim 1 , carbon black claim 1 , functionalised carbon-based nanomaterials claim 1 , or a combination thereof.3. The sensor according to or claim 1 , wherein the carbon-based conductive liquid is graphene oxide is ≧3.0 mg/mL.4. The sensor according to any preceding claim claim 1 , wherein the sensor is flexible.5. The sensor according to any preceding claim claim 1 , wherein the first layer and the second layer are of the same or different material claim 1 , and are formed from an elastomeric material.6. The sensor according to any preceding claim claim 1 , wherein the first layer and the second layer are of the same or different material claim 1 , wherein the material comprises silicone rubber claim 1 , latex rubber claim 1 , nitrile rubber claim 1 , polyurethane (PU) claim 1 , polyvinylidene fluoride (PVDF) claim 1 , ethylene vinyl acetate (EVA) claim 1 , polyvinyl alcohol (PVA) claim 1 , ...

Tension Meter for Measuring a Mechanical Tension Along a Longitudinal Direction in a Well and Related Subassembly and Method

Tension meter ( 82 ) for measuring a mechanical tension (F 1 ) along a longitudinal direction (L) between a first element ( 84 ) and a second element ( 80 ) deployed in a well containing a fluid ( 50 ) having a fluid pressure, the tension meter comprising:—a bar ( 108 ) comprising a first portion ( 152 ), a second portion ( 154 ), and a measurement portion ( 156 ), and—a hollow member ( 110 ) defining a first chamber ( 169 ) surrounding the measurement portion, the bar being free to expand within the hollow member under the mechanical tension (F 1 ) to be measured. The measurement portion includes at least one strain gauge ( 172 ). The tension meter includes first sealing elements for keeping the first chamber at a first chamber pressure, the measurement portion being subject to a compression force (F 2 ) due to a difference between the fluid pressure and the first chamber pressure. The tension meter includes means for converting the fluid pressure into a traction force (F 3 ) applied on the second portion ( 154 ), wherein the compression force (F 2 ) and the traction force (F 3 ) compensate. Related subassembly and method.

METHOD FOR MEASURING PRESSURES IN A HIGH PRESSURE CELL BY MONITORING CONTINUOUS CHANGES IN PHYSICAL PROPERTIES OF GEO2-SIO2 SOLID SOLUTION

A method for the measurement of pressure in high temperature and high pressure processes includes the steps of providing at least a first material compound and at least a second material compound. The at least first and second compounds are mixed to form a material sample. The material sample is loaded into a device and the device and material sample are subjected to a high pressure of up to about 10 GPa and a high temperature of up to about 2000° C. to form the material sample into a solid crystalline solution. The material sample is recovered for analysis and the composition of the crystalline solid solution is measured to determine the pressure ex situ. 1. A method of measuring pressure in high temperature and high pressure processes comprising the steps of:providing a material sample;loading the material sample into a device;subjecting the device and material sample to a high pressure of up to about 10 GPa and a high temperature of up to about 2000° C. to form the material sample into a solid crystalline solution;recovering the material sample for analysis; andmeasuring the composition of the crystalline solid solution to determine the pressure ex situ.2. The method of claim 1 , wherein the step of providing a material sample further comprises providing a quantity of SiOpowder claim 1 , providing a quantity of GeOpowder claim 1 , and mixing the SiOand GeOpowders to form the material sample.3. The method of claim 1 , wherein pressure and temperature are held constant for a pre-determined time up to 120 minutes.4. The method of claim 2 , wherein the SiOpowder and the GeOare either crystalline or amorphous.5. The method of claim 1 , further comprising combining the SiOpowder and the GeOpowder as a glass prior to high pressure treatment.6. The method of claim 2 , wherein the SiOpowder and the GeOpowder mixture is derived from sol-gel techniques by reacting alkoxides of Si and Ge.7. The method of claim 2 , wherein the step of measuring comprises measuring the amount ...

CONTROL METHOD FOR OIL PUMP

A system and method of controlling an automotive electric oil pump are provided. The method of controlling an oil pump can minimize power consumption of a vehicle and improve the fuel efficiency accordingly by learning the performance of the electric oil pump and operating the electric oil pump based on performance. 1. A method of controlling an oil pump , comprising:determining, by a controller, whether learning conditions for learning a necessary revolutions per minute (RPM) based on a quality of an electric oil pump are satisfied;operating, by the controller, the electric oil pump at an RPM for a standby state based on a current oil temperature, when the learning conditions are satisfied;measuring, by the controller, hydraulic pressure generated when the electric oil pump is operated at predetermined leaning-objective RPM from the standby state generated in the operation of the electric oil pump; andgenerating, by the controller, a new learning map proportional to a difference between the hydraulic pressure measured in the measuring of hydraulic pressure and the hydraulic pressure of predetermined standard maps, by comparing the measured hydraulic pressure with the hydraulic pressure of the standard maps.2. The method of claim 1 , wherein a sensor is configured to measure hydraulic pressure generated by the electric oil pump in the measuring of hydraulic pressure and the sensor is a hydraulic pressure sensor configured to receive hydraulic pressure from the electric oil pump claim 1 , is mounted on a hydraulic device operated at hydraulic pressure different from the hydraulic pressure discharged from the electric oil pump in operation claim 1 , and is configured to sense control pressure of the hydraulic device that is in operation.3. The method of claim 2 , wherein in the determination of whether learning conditions are satisfied claim 2 , the method includes:determining, by the controller, the pressure for operating the hydraulic device is not measure since the ...

FELLED TREE LEAN CONTROL SYSTEM AND METHOD

A controlled lean system for a tree feller-buncher includes a sensor configured to measure an orientation of a boom coupled to the tree feller-buncher, and a felling head operably connected to the boom. A controller is operable to detect a cut tree carried by the felling head and to estimate a quantity of tree lean needed to reduce torsional load during rotation of the boom while carrying the cut tree based at least in part on the measured orientation of the boom. 1. A controlled lean system for a tree feller-buncher , the system comprising:a first sensor configured to measure an orientation of a boom coupled to the tree feller-buncher;a felling head operably connected to the boom; anda controller operable to detect a cut tree carried by the felling head and to estimate a quantity of tree lean based at least in part on the measured orientation of the boom, wherein the controller is further operable to control rotation of the felling head with respect to the boom in a first direction to implement the estimated quantity of tree lean.2. The controlled lean system of claim 1 , wherein the quantity of tree lean is between zero degrees and five degrees.3. The controlled lean system of claim 1 , wherein the boom includes a wrist adapter operably connected to the felling head claim 1 , wherein the controller is operable to control rotation of the felling head with respect to the wrist adapter.4. The controlled lean system of claim 1 , wherein the controller is operable to detect deceleration of rotation of the boom and is operable to control rotation of the felling head with respect to the boom in a second direction claim 1 , opposite the first direction claim 1 , to decelerate rotation of the boom.5. The controlled lean system of claim 1 , wherein the controller is operable to estimate a quantity of tree lean necessary to reduce a torsional load on the boom by a predetermined value.6. The controlled lean system of claim 1 , further comprising:an arm position detection ...

Force sensing carriage for load carrying vehicle

A force sensing carriage for a load carrying vehicle with lift capability has a first carriage component, a second carriage component and at least one bladder filled with a fluid at a predetermined pressure positioned between the second carriage component and the first carriage component. The first carriage component is configured for mounting to the load carrying vehicle. The second carriage component is for contacting a load to be moved and is positionable in alignment with the first carriage component. The bladder at least partially supports the second carriage component in an operating position in which a portion of the second carriage component is spaced away from the first carriage component. Forces exerted on the bladder by the second carriage component increase pressure in the bladder. An indicator circuit with an indicator indicates a warning if a predetermined threshold pressure is exceeded.

METHOD FOR MONITORING THE PRESSURE IN A DEVICE FOR PNEUMATICALLY ADJUSTING A SEAT IN A TRANSPORTATION MEANS

The invention relates to a method for monitoring the pressure in a device for the pneumatic adjustment of a seat in a transportation means, in particular in a motor vehicle. The device comprises a plurality of cushions () which are able to be filled with air and which are connected via respective valves () to a common preliminary pressure volume (), wherein a pressure sensor () is provided for measuring the pressure (p) in the preliminary pressure volume () and the preliminary pressure volume () is coupled to a compressor () for supplying compressed air without a non-return valve being connected therebetween. For the purpose of monitoring the pressure in a respective cushion (), a predefined pressure is set in the preliminary pressure volume by way of operation of the compressor () and/or by way of air discharge from the preliminary pressure volume () via at least one leak, with the valve () between the respective cushion () and the preliminary pressure volume () closed, wherein the predefined pressure deviates from a target pressure (p p . . . , p) in the respective cushion () by at most 10% of the target pressure and/or at most 50 hPa. After the setting of the predefined pressure, the valve () between the respective cushion () and the preliminary pressure volume () is opened and the pressure in the preliminary pressure volume () is measured via the pressure sensor (). If the measured pressure (p) deviates from the target pressure (p p . . . , p), the measured pressure (p) is set to the target pressure (p p . . . , p) by way of operation of the compressor () and/or by way of air discharge from the preliminary pressure volume () via the at least one leak. 1. A method for monitoring the pressure in a device for the pneumatic adjustment of a seat in a transportation means , wherein the device comprises a plurality of cushions configured to be filled with air and coupled via respective valves to a common preliminary pressure volume , wherein a pressure sensor is ...

FLUID PRESSURE BASED END EFFECTOR FORCE TRANSDUCER

A surgical instrument is provided that includes an elongated shaft; an end effector located at the distal end of the shaft includes first and second jaws having opposing working faces and a pivot axis; at least one of the first and second jaws is mounted to rotatably pivot about the pivot axis. A fluid filled sac includes a first bladder portion and a second bladder portion and a tube portion extending between the first and second bladder portions; the first bladder portion is located at a working face of the first jaw; a sensor is operatively coupled to the second bladder portion to produce a sensor signal indicative of fluid pressure within the fluid filled sac. 1. A surgical instrument comprising:an elongated shaft including a proximal end and a distal end;an end effector located at the distal end of the shaft and including first and second jaws having opposing working faces and a pivot axis, wherein at least one of the first and second jaws is mounted to rotatably pivot about the pivot axis between an open position and a closed position;a fluid filled sac including a first bladder portion and a second bladder portion and a tube portion extending between the first and second bladder portions;wherein the first bladder portion is located at a working face of the first jaw;a sensor operatively coupled to the second bladder portion produce a sensor signal indicative of fluid pressure within the fluid filled sac.2. The surgical instrument of claim 1 ,wherein the working face of the jaw defines a recess sized to provide a snug interfit with the first bladder portion.3. The surgical instrument of claim 1 ,wherein the first bladder portion is disposed upon the working surface of the jaw; further including:a flexible diaphragm fit about the first jaw and the first bladder portion to hold the first bladder portion in place at the working face of the first jaw.4. The surgical instrument of claim 1 ,wherein the sensor is disposed within the elongated shaft.5. The surgical ...

Elastomeric Pressure Transduction Based User Interface

Disclosed herein are electronic devices having a deformable surfaces through which a user can provide inputs to the device by applying a force such as a pinch or a squeeze. A particular embodiment is an earpiece with the deformable surface part of an elongate section extending from an earbud. The deformable surface includes an incompressible hyperelastic material and a pressure sensor. The pressure sensor includes a pressure sensing element and a void defined between the pressure sensing element and the incompressible hyperelastic material. An applied force is transferred by the incompressible hyperelastic material to compress the void and change an internal pressure thereof. The changed pressure is detected by the pressure sensor, and can result in changed operation of the electronic device. 1. An earpiece , comprising: ["an earbud configured for placement in a user's ear; and", 'an elongate section extending from the earbud and having a deformable surface and a non-deformable surface;, 'a housing defining,'}a speaker disposed in the earbud;a deformable input section contained within the elongate section and disposed between the deformable surface and the non-deformable surface;a pressure sensor mechanism having a pressure sensing element; and a void between the incompressible hyperelastic material and the pressure sensing element is defined within the sealed region;', 'a force applied by the user to the deformable surface is transferred by the incompressible hyperelastic material from the housing to the void to alter a pressure in the void; and', 'the pressure sensing element is operable to detect the pressure in the void., 'an incompressible hyperelastic material contained within a sealed region within the deformable input section; wherein2. The device of claim 1 , wherein the incompressible hyperelastic material comprises silicone.3. The device of claim 1 , wherein the void contains a compressible gas.4. The device of claim 1 , wherein:the applied force causes a ...

Three dimensional structure with sensor capability

This invention relates to a device for sensing interaction with its surrounding environment, the device including: a plurality of sensing points ( 11 ); a plurality of detectors ( 12 ), each associated with one of said sensing points ( 11 ) and located remotely therefrom; a plurality of channels ( 14 ) which connect said sensing points ( 11 ) to said detectors ( 12 ) and provide a communication pathway therebetween; and communication media filling the channels, wherein each detector ( 12 ) is in communication with the associated sensing point or points ( 11 ) through one of said channels ( 14 ) and the medium in said channel ( 14 ) is arranged to transmit, transfer or transduce an interaction of the sensing point ( 11 ) with its surrounding environment to the detector ( 12 ) through the channel ( 14 ). The invention also relates to prosthetics which incorporate such devices. The devices according to the present aspect integrate sensing points and sensors within the structure of the device rather than adding an extra sensing layer to the structure and can overcome the traditional problems associated with the wiring when providing sensors on a robot arm or prosthetic.

Agricultural System

A gauge wheel load sensor is provided for an agricultural planter having a row unit that includes a pivotably mounted gauge wheel and a down pressure controller for controlling the down pressure on at least a portion of the row unit. The load sensor includes a mechanical element mounted for movement in response to the downward force applied to the row unit; a fluid-containing device containing a movable element coupled to the mechanical element for changing the fluid pressure in response to the movement of the mechanical element; and a transducer coupled to the fluid-containing device for producing an output signal in response to changes in the fluid pressure. An energy storage device, such as an accumulator, may be coupled to the fluid-containing device for receiving a limited amount of fluid in response to changes in the fluid pressure to damp pressure spikes in the output signal of the transducer. 1. A gauge wheel load sensor for an agricultural planter having a row unit that includes a pivotably mounted gauge wheel and a down pressure controller for controlling the down pressure on at least a portion of the row unit , said load sensor comprisinga mechanical element mounted for movement in response to the downward force applied to the row unit,a fluid-containing device containing a movable element coupled to said mechanical element for changing the fluid pressure in response to the movement of said mechanical element, anda transducer coupled to said fluid-containing device for producing an output signal in response to changes in said fluid pressure.2. The gauge wheel load sensor of in which said mechanical element is a ram in a hydraulic cylinder containing pressurized fluid claim 1 , and said ram is coupled to said gauge wheel so that said ram is moved within said cylinder in response to vertical movement of said gauge wheel.3. The gauge wheel load sensor of in which said ram is coupled to said gauge wheel so that said ram is advanced within said cylinder to ...

LOAD SENSOR-EQUIPPED BEARING DEVICE

A bearing raceway ring () disposed near a mounting section () is disposed on the outer periphery of a circular cylinder section (). A fluid-sealed chamber () in which a measurement liquid is hermetically enclosed is provided between a first member () and the bearing raceway ring () which is disposed near the mounting section (). Pressure acting on the fluid to be measured changes as the bearing raceway ring () moves in the cylinder-axis direction, the bearing raceway ring () being disposed near the mounting section (). The fluid-sealed chamber () is provided with a pressure sensor () capable of detecting a change in the pressure of the fluid to be measured. 1. A load sensor-equipped bearing device comprising:a first member having a mounting part to be fixed to a vehicle-side and a cylindrical part protruding from the mounting part;a second member fixed to an end portion of the cylindrical pan of the first member in a cylinder-axis direction and disposed at a wheel-side;a pair of bearing raceway rings interposed between the first member and the second member and configured to rotatably support an axial load about the cylindrical part serving as an axis center, anda rolling element incorporated between the pair of bearing raceway rings,wherein the bearing raceway ring disposed close to the mounting pan is disposed on an outer periphery of the cylindrical part,wherein a fluid-sealed chamber in which a fluid to be measured is hermetically enclosed is provided between the first member and the bearing raceway ring disposed close to the mounting part,wherein a pressure acting on the fluid to be measured changes as the bearing raceway ring disposed close to the mounting part moves in the cylinder-axis direction, andwherein the fluid-sealed chamber is provided with a pressure sensor capable of detecting the change in the pressure of the fluid to be measured.2. The load sensor-equipped bearing device according to claim 1 ,wherein the first member is a cylinder configuring a ...

Integrated Force Sensor

The present invention discloses an integrated force sensor, characterized in comprising: a substrate, flexible through-cavities formed on the substrate, and a flexible skin covering the flexible through-cavities, wherein a lug boss is formed on the substrate; the flexible through-cavities are divided into two segments under the action of the lug boss, one end of the flexible through-cavities is connected with a pressure sensor used to measure the internal pressure of the flexible through-cavities, and the other end of the flexible through-cavities is communicated with outside air. In the invention, the force to be measured changes the gas pressure by changing the shape of an object and detects the magnitude of the force to be measured by detecting the gas pressure. Besides, the overloaded pressure can be released through the pressure release mechanism, without affecting the safety of the film of the pressure sensor or resulting in permanent damage to film.

FORCE MEASURING DEVICE FOR A SYSTEM FOR CRIMPING AN ELEMENT ON A PART

A Device for measuring a force applied by a fitting apparatus provided with a threaded rod having an external or internal thread, includes a hydraulic chamber containing a fluid; a piston configured to slide inside the hydraulic chamber; a threaded connector fixed to the piston, the threaded connector having a thread configured in such a way that the threaded rod screws onto the threaded connector, so that the threaded rod can impose an axial force on the piston resulting in travel of the piston in the hydraulic chamber; and a pressure gauge communicating with the hydraulic chamber, configured to measure a pressure inside the hydraulic chamber created by the axial force applied on the piston by the threaded rod. 19-. (canceled)10. A device for measuring a force applied by a fitting apparatus of an element to be crimped , said fitting apparatus being provided with a threaded rod having an internal or external thread , device comprising:a hydraulic chamber comprising a fluid and extending along a longitudinal axis;a piston configured to slide inside the hydraulic chamber along said longitudinal axis;a threaded connector fixed to the piston, the threaded connector having an external or internal thread configured in such a way that the threaded rod screws onto the threaded connector so that the threaded rod can impose an axial force on the piston resulting in travel of the piston, along the longitudinal axis, inside the hydraulic chamber;a pressure gauge communicating with the hydraulic chamber and configured to measure a pressure inside the hydraulic chamber created by the axial force applied on the piston by the threaded rod of the fitting apparatus.11. The device according to claim 10 , comprising a display connected to the pressure gauge and configured to transpose the pressure measured by the pressure gauge into an axial force value.12. The device according to claim 10 , comprising an anvil designed to receive a counter-support of the fitting apparatus so as to ...

OPTICAL SENSOR DEVICE, SENSOR APPARATUS AND CABLE COMPRISING SUCH DEVICE

The invention relates to an optical sensor device comprising a reference body, an optical fiber including an intrinsic fiber optic sensor, and a hydraulic transmission system. The hydraulic transmission system is connected to the reference body such that an input portion and an output portion are movable with respect to the reference body. The optical fiber is connected with a first connecting portion to the output portion of the hydraulic transmission system and with a second connecting portion to an element exterior to the hydraulic transmission system. The intrinsic sensor is positioned between the first and second connecting portion. The input portion is arranged for receiving an input action and the hydraulic transmission system is arranged for converting the input action to a sensing action applied to the optical fiber by the output portion such as to modify strain in the optical fiber dependent on said input action. 1. An optical sensor device , comprising:a reference body;an optical fiber including an intrinsic fiber optic sensor; anda hydraulic transmission system including an input portion in hydraulic communication with an output portion,wherein the hydraulic transmission system is connected to the reference body such that the input portion and output portion are movable with respect to the reference body,wherein the optical fiber is connected with a first connecting portion thereof to the output portion of the hydraulic transmission system and with a second connecting portion thereof to an element exterior to the hydraulic transmission system, wherein the intrinsic fiber optic sensor is positioned between the first connecting portion and the second connecting portion,wherein the input portion of the hydraulic transmission system is arranged for receiving an input action and the hydraulic transmission system is arranged for converting the input action received by the input portion of the hydraulic transmission system to a sensing action applied to the ...

BIOLOGICAL INFORMATION ACQUISITION DEVICE

A seat portion includes a first layer, a second layer, and a third layer that are stacked sequentially from the surface side to the inner side of the seat portion. The second layer has a higher stiffness than the third layer, and the first layer has a lower stiffness than the third layer. A pressure sensitive part has a pressure sensitive-part body arranged between the first layer and the second layer. 1. A biological information acquisition device comprising:a seating article having a backrest and a seat portion;a pressure sensitive part arranged in the seat portion, and configured to receive pressure caused by a motion of a seated user; andan information acquisition part configured to acquire biological information of the seated user based on the pressure received by the pressure sensitive part, whereinthe seat portion includes a first layer, a second layer, and a third layer that are stacked sequentially from a surface side to an inner side of the seat portion, 'the first layer has a lower stiffness than the third layer, and', 'the second layer has a higher stiffness than the third layer,'}the pressure sensitive part has a pressure sensitive-part body arranged between the first layer and the second layer.2. The biological information acquisition device of claim 1 , whereinthe pressure sensitive part includes a pressure sensitive tube whose internal pressure changes in response to the motion of the seated user, andthe pressure sensitive-part body includes a tube body arranged between the first layer and the second layer.3. The biological information acquisition device of claim 2 , whereinthe seat portion includes a fourth layer arranged inward of the third layer and having a higher stiffness than the third layer, andthe fourth layer has a notch that holds a portion of the pressure sensitive tube.4. The biological information acquisition device of claim 1 , whereinthe seat portion has a surface inclined downwardly toward the backrest.5. The biological information ...

CONTACT DETECTION DEVICE

A contact detection device detects pressure over a wide range, be applied to even a three-dimensional structure, and detect predetermined contact pressure or more. 1. A contact detection device , comprising:a base with a particular shape;a foamed synthetic resin body covering the base, the foamed synthetic resin body comprising a piece of foamed synthetic resin or a plurality of pieces of foamed synthetic resin being stacked and bonded together, the foamed synthetic resin forming into a particular shape;a reinforced layer defining a predetermined volume space to prevent compressed air in the volume space from leaking through the base and the foamed synthetic resin body to open air, the volume space being on either or both of the base and the foamed synthetic resin, the base and the foamed synthetic resin being opposite each other; andat least one flow sensor detecting flow rate (liter/second) from the volume space to open air.2. A contact detection device according to claim 1 ,wherein the base with the particular shape comprises a piece of the foamed synthetic resin or a plurality of pieces of the foamed synthetic resin being stacked and bonded together.3. A contact detection device as in claim 1 ,wherein the reinforced layer reduces unevenness including a beads line and a vent hole on a cut surface and increases density on the cut surface, the cut surface resulting from a cutting of a piece of the foamed synthetic resin or a plurality of pieces of the foamed synthetic resin being stacked and bonded together.4. A contact detection device as in claim 1 ,wherein the volume space contains a space holder comprising an elastomeric member, the elastomeric member comprising foamed synthetic resin including open cells and thus having ventilation, the elastomeric member having punched holes formed by punching holes at once or one by one in the foamed synthetic resin and thus having a grid shape, a quadrilateral shape, a fine shark skin, polka dots, or checks.5. A contact ...

FLUID WEIGHT DETECTION DEVICE

A device and associated method of use may each generally be directed to a device capable of continually measuring the weight of various fluids in real-time by having at least a pneumatic bladder positioned within an enclosure and contacting a fluid. The pneumatic bladder may be connected to a sensing device that can act to measure a weight of the fluid.

REVERSIBLE FORCE MEASURING DEVICE

A reversible force measuring device that can comprise at least one cavity, at least one load receiving area, and at least one indicating material; wherein the indicating material moves in or out of the at least one cavity as its volume changes to indicate the magnitude and/or direction of the applied loads. A reversible force measuring device that can comprise at least one cavity, at least one load receiving area, and at least one indicating material; a fastener causes the indicating material to move in and out of the at least one cavity to indicate the magnitude and/or direction of the applied loads. A reversible force measuring device comprising at least two independent cavities, at least one load receiving area, and at least one indicating material; wherein the difference in volume changes indicates the force as the indicating material moves in or out of the at least two cavities. 1. A reversible force measuring device comprising:at least one cavity,at least one cavity wall,at least one of a fastener component and a load cell component,at least one load receiving area, andat least one indicating material;wherein the at least one cavity is a space defined by the at least one cavity wall, wherein applying force to the at least one load receiving area causes a reversible volumetric change of the at least one cavity on the at least one of a fastener component and a load cell component and wherein the reversible volumetric change of the at least one cavity causes the at least one indicating material to move in or out of the at least one cavity to indicate the magnitude and/or direction of the applied force.2. A reversible force measuring device as claimed in claim 1 , further comprising:at least one indicator hole,at least one indicator channel, andat least one of a channel cover and a tube;wherein the at least one indicator hole is connected with the at least one cavity,wherein the at least one of a channel cover and a tube is made of transparent or semi-transparent ...

Pressure sensing device, pressure sensing system and pressure switch using same

A pressure sensing device includes an elastic tube defming a chamber and an opening in one or each of two opposite ends thereof in communication with the chamber, and a pressure sensor component sealed in the opening in one or each end of the elastic tube for detecting a change in air pressure in the chamber when the elastic tube is compressed by an external pressure. The pressure sensing device can be used under a waterproof or dustproof environment, or embedded in a bed mattress or seat cushion and incorporated with a signal processor for detecting changes in the biophysical condition of the user, or embedded in a floor mat and incorporated with light and/or sound generating device for reminding your home or store that someone is coming in or going out. Thus, the pressure sensing device has the characteristics of simple structure, practical applicability and wide application range.

PRECISION DETECTION DEVICE FOR FORCE STANDARD MACHINE, FORCE VALUE COMPARISON MACHINE AND PRECISION DETECTION METHOD FOR FORCE STANDARD MACHINE

A precision detection device for a force standard machine includes a first hydraulic cylinder, a pipeline and a force loading device. A liquid medium is disposed in, the first hydraulic cylinder, and a liquid level area of the liquid medium is a known Value. The pipeline is a hollow tubular structure, and a first end of the pipeline is communicated with the liquid medium in the first hydraulic cylinder. The force loading device acts on the liquid medium, in the first hydraulic cylinder to produce a pressure increment or a pressure intensity increment on the, liquid medium. A force value comparison machine and a precision detection method for a force standard machine are also provided. 126. A precision detection device for a force standard machine , comprising a first hydraulic cylinder () , a pipeline () and a force loading device , wherein{'b': '2', 'a liquid medium is disposed in the first hydraulic cylinder (), and a liquid level area of the liquid medium is a known value;'}{'b': 6', '6', '2, 'the pipeline () is a hollow tubular structure, and a first end of the pipeline () is communicated with the liquid medium in the first hydraulic cylinder (); and'}{'b': '2', 'the force loading device acts on the liquid medium in the first hydraulic cylinder () to produce a pressure increment or a pressure intensity increment on the liquid medium.'}28828. The device according to claim 1 , further comprising a first measurement device () claim 1 , wherein the first measurement device () is configured to measure a pressure value or pressure intensity value on a liquid level of the first hydraulic cylinder (); and a measurement precision value of the first measurement device () is a known value.310102102102810. The device according to claim 2 , further comprising a first piston () claim 2 , wherein an end surface of the first piston () contacts with the liquid level of the liquid medium in the first hydraulic cylinder (); the first piston () slides in the first hydraulic ...

Contact detecting device

To yield fixed output as electrical signal when any positions of volume space is subjected to external pressure and the external pressure is detected. A contact detecting device includes a mounted base 60 with a predetermined shape, a design foam 10 that is bonded to the mounted base and covers it, and a limiter 7 that is mounted on the mounted base 60 or the design foam 10 . The contact detecting device further includes a predetermined volume space 4 defined by the mounted base 60 , the design foam 10 , and the limiter 7 . The contact detecting device further includes a sensor SEN that detects external pressure applied to the volume space 4 through the determination of the physical variation of the volume space 4 . The physical variation of the volume space 4 is detected through the sensor determining, for example, variation in flow rate, flow velocity, or volume. In particular, the contact detecting device detects two-dimensional or three-dimensional contact on any position.

DEVICE FOR MONITORING HORIZONTAL EXTRUSION FORCE OF ROOF ROCK STRATA AND METHOD USING THE SAME

A device includes a pressure measuring segment, a connecting rod, a hydraulic pump, a pressure gauge, a high-pressure oil pipe, a pressure control valve, a tray, a push rod and a connection casing. The pressure measuring segment is on the connecting rod, a front end of the push rod is connected with the connecting rod, the tray is at a rear end of the push rod, the connection casing is connected with the tray. The pressure measuring segment includes a main pipe, a hydraulic bladder, a fixing ring, a barrier sheet, an outer pillow housing and a connection sleeve. Both ends of the hydraulic bladder are sleeved on the main pipe, an oil inlet is in communication with the hydraulic bladder, the outer pillow housing is sleeved on the main pipe, the connection sleeve is wrapped around the outer pillow housing. 1. A device for monitoring a horizontal extrusion force of roof rock strata , comprising: a pressure measuring segment , a connecting rod , a hydraulic pump , a pressure gauge , a high-pressure oil pipe , a pressure control valve , a tray , a push rod and a connection casing , wherein the connecting rod is connected with the pressure measuring segment , a front end of the push rod is connected with the connecting rod , a rear end of the push rod passes through the tray , and the connection casing is connected with the tray; the high-pressure oil pipe is connected with the hydraulic pump and protrudes to the pressure measuring segment through inner cavities of the push rod and the connection rod;the pressure measuring segment comprises a main pipe, a hydraulic bladder, a fixing ring, a barrier sheet, an outer pillow housing and a connection sleeve; both ends of the hydraulic bladder are sleeved on the main pipe by the fixing rings, and an oil inlet is disposed on the main pipe to be in communication with the hydraulic bladder; the outer pillow housing is sleeved on the main pipe, the connection sleeve is wrapped around an outer side of the outer pillow housing, and ...

REVERSIBLE FORCE MEASURING DEVICE

A reversible force measuring device for ascertaining the magnitude and/or direction of an applied load and having a cavity containing an indicating material such as a fluid, with the cavity configured such that when a load is applied to the device, it causes a reversible volumetric change to the cavity. This change causes the indicating material to move in or out of the cavity in a quantity which corresponds to the magnitude and/or direction of the applied load. By measuring the movement of the indicating material, a user can determine the magnitude and/or direction of the applied load. The device may include a component which generates an electrical signal from the measured movement and transmits this signal to another device to control the tensioning of one or more fastener components and or make other analytical measurements by combining this measurement with other measurements like torque and or angle. 1. A reversible force measuring device , comprisingat least one of a fastener component and a load cell component;at least one load receiving area integral with the at least one of the fastener component and the load cell component;at least one cavity disposed in the at least one of the fastener component and the load cell component and containing indicating material, wherein said at least one cavity and the at least one load receiving area are cooperatively configured such that the application of force to the at least one load receiving area causes a reversible volumetric change of the at least one cavity that causes the indicating material to move in or out of the at least one cavity to indicate the magnitude and/or direction of the applied force; anda sensing component configured to measure the movement of the indicating material.2. The reversible force measuring device of claim 1 , wherein said sensing component is configured to transmit a signal related to a measurement of the movement of the indicating material over a network.3. The reversible force ...

MULTI-AXIS FORCE SENSING SOFT ARTIFICIAL SKIN

A sensor including a layer having viscoelastic properties, the layer comprising a void, the void filled with a fluid; and optionally, a more rigid sensing element embedded within the layer. When a force is applied to a surface of the sensor, the shape of the void changes, causing the electrical resistance of the fluid in the void to change. When included, the more rigid sensing element can bear upon the void to cause the electrical resistance of the fluid in the void to change. A direction and intensity of the force can be determined by measuring the change of the electrical resistance of different voids positioned about the sensing element. The layer can be an elastomer, preferably silicone rubber. The fluid can be a conductive liquid, preferably Eutectic Gallium Indium. The sensing element can be plastic and can have a “Joystick” shape. The voids can take the form of channels or microchannels having a predefined pattern and/or shape. 1. A multi-axis sensor comprising:a layer of flexible material having a defined thickness and a contact surface;one or more substantially rigid sensing elements embedded within the flexible material, each sensing element including a substantially planar portion and at least one projecting portion extending substantially perpendicular to the planar portion, the planar portion being oriented substantially parallel to at least a portion of the contact surface;at least one microchannel in the flexible material extending near the planar portion of at least one of the rigid sensing elements, such that a force applied to the contact surface causes the rigid sensing element to move relative to the microchannel and cause the microchannel to change in a cross-sectional dimension; anda conductive fluid disposed in the at least one microchannel, wherein electrical resistance of the conductive fluid in the at least one microchannel changes as a function of the change in orientation of the rigid sensing element.2. The multi-axis sensor according to ...

Elastomeric Pressure Transduction Based User Interface

Disclosed herein are electronic devices having a deformable surfaces through which a user can provide inputs to the device by applying a force such as a pinch or a squeeze. A particular embodiment is an earpiece with the deformable surface part of an elongate section extending from an earbud. The deformable surface includes an incompressible hyperelastic material and a pressure sensor. The pressure sensor includes a pressure sensing element and a void defined between the pressure sensing element and the incompressible hyperelastic material. An applied force is transferred by the incompressible hyperelastic material to compress the void and change an internal pressure thereof. The changed pressure is detected by the pressure sensor, and can result in changed operation of the electronic device.

PROPULSION DEVICE FOR AN AIRCRAFT, SUCH AS A TURBOPROP

The invention concerns a propulsion device () comprising a torque generator () driving an output shaft () via a power gearbox (), the output shaft () being rotatably coupled to a thruster (), said power gearbox () being fixed on a frame () by means of suspension means (), said suspension means including hydraulic torque recovery means comprising at least a first hydraulic system () and a second hydraulic system () spaced from each other, each hydraulic system () having a pressure chamber whose volume varies according to the position of the housing () of the power gearbox () relative to the frame (), the pressure chambers of the hydraulic systems () being connected by a capillary so that a hydraulic fluid is able to flow from one pressure chamber to another via the capillary. 19.-. (canceled)1012343547814151515151818947181815191818192018181953abababab. A propulsion device () for an aircraft , such as a turboprop , comprising a torque generator () driving an output shaft () via a power gearbox () , the output shaft () being rotatably coupled to a propeller () , said power gear box () being fixed on a frame () by means of suspension means ( , , ) , said suspension means including hydraulic torque recovery means comprising at least a first hydraulic system () and a second hydraulic system () spaced from each other , each hydraulic system () including a pressure chamber ( , ) whose volume varies according to the position of the housing () of the power gearbox () relative to the frame () , the pressure chambers ( , ) of the hydraulic systems () being connected by a capillary () so that a hydraulic fluid is able to flow from one pressure chamber () to the other () via the capillary () , characterized in that it includes means () for measuring the pressure of the hydraulic fluid within at least one of the pressure chambers ( , ) and/or within the capillary () and means for determining the torque transmitted to the thruster () through the output shaft () , in particular as a ...

Method for estimating an external force acting on an electrohydrostatic actuator

The invention concerns a method for estimating an external force acting on an electrohydrostatic actuator, the actuator comprising a ram including a first chamber, a second chamber and a piston located between the first chamber and the second chamber, a pump capable of injecting fluid into the chambers for controlling a movement of the piston, and an electric motor driving the pump, the method comprising steps of: estimating, by means of at least one state observer ( 21, 22 ), a dynamic component and a static component of a difference in equivalent fluid pressure between the first chamber and the second chamber from a rotational speed of the electric motor, a position of the piston and a supply current of the electric motor, estimating the external force by means of a post-processing module ( 23 ) as a combination of the estimated dynamic component and static component of the difference in fluid pressure.

VEHICLE WEIGHT MEASUREMENT DEVICE

A weight measuring device includes: a bottom plate () in contact with an arm of a suspension; a piston () capable of pressing a diaphragm () forming an oil chamber () on an upper surface side of the bottom plate; a pressure sensor () for detecting a pressure of measurement fluid (R) in the oil chamber on a lower surface side of the bottom plate; an oil discharge hole portion () which communicates an inner side of the oil chamber with the atmosphere side and is capable of discharging excess hydraulic oil in the oil chamber; and a sealing portion () which is provided in the oil discharge hole portion and seals the oil discharge hole portion after discharging the excess measurement fluid (R) and equilibrating an internal pressure to the atmospheric pressure in a state of no load. 1. A weight measuring device for a vehicle comprising:a movable body which is moved by a resilient force of a spring;a diaphragm which is pressure-deformable by the movement of the movable body;an oil chamber which is filled with a predetermined measurement fluid and whose internal pressure is capable of being changed by pressing of the diaphragm;a pressure sensor capable of detecting a pressure change in the oil chamber;a mounting portion to which the pressure sensor is mounted and which cooperates with the diaphragm to form the oil chamber;an annular collar which seals and fixes a surface portion of the diaphragm which is the surface portion closer to an outer diameter by pinching the surface portion with the mounting portion;an oil discharge hole portion, formed in the mounting portion, capable of discharging excess hydraulic oil in the oil chamber to the atmosphere side; anda sealing portion which is formed by sealing the oil discharge hole portion discharging the excess hydraulic oil.2. The weight measuring device for a vehicle according to claim 1 , wherein:the movable body includes a cylindrical portion sliding contact with the collar, and the movable body is moved at an inner diameter ...

MUSCLE CONTRACTION DETECTION SENSOR

A muscle contraction detection sensor for detecting a muscle contraction that includes: a substrate to be mounted facing a muscle to be detected; at least two pressing members that are disposed on the substrate and are to be pressed against the muscle; and at least two reaction force detection units configured to detect respective reaction forces received by the pressing members, wherein the pressing members include a first pressing member and a second pressing member, the reaction force detection units include a first reaction force detection unit and a second reaction force detection unit, a muscle contraction is detected based on a change in a difference between, or a change in ratios of, the reaction force received by the first pressing member detected by the first reaction force detection unit and the reaction force received by the second pressing member detected by the second reaction force detection unit.

ZERO-STRAIN SOIL PRESSURE SENSOR

A zero-strain soil pressure sensor includes a shell provided with a hydraulic oil cavity and a cavity located below the hydraulic oil cavity, a processor, an outer elastic film arranged at the upper end of the hydraulic oil cavity, an inner elastic film arranged between the hydraulic oil cavity and the cavity, an outer strain bridge circuit connected with the outer elastic film, an inner strain bridge circuit connected with the inner elastic film, a piston communicated with the hydraulic oil cavity, and a driving mechanism connected with the piston. The outer strain bridge circuit, the inner strain bridge circuit and the driving mechanism are electrically connected with the processor. The invention has the beneficial effect that the piston is driven by the driving mechanism to control the oil pressure in the hydraulic oil cavity, external soil pressure is balanced through the oil pressure to keep the outer elastic film in an non-deforming state all the time, and only the inner elastic film is deformed, so that the soil arch effect and soil displacement are avoided, and thus the liquid pressure measured by the inner elastic film is the soil pressure, and the measurement result is more accurate. 1. A zero-strain soil pressure sensor , comprising a shell provided with a hydraulic oil cavity and a cavity located below the hydraulic oil cavity , a processor , an outer elastic film arranged at an upper end of the hydraulic oil cavity , an inner elastic film arranged between the hydraulic oil cavity and the cavity , an outer strain bridge circuit connected with the outer elastic film , an inner strain bridge circuit connected with the inner elastic film , a piston communicated with the hydraulic oil cavity , and a driving mechanism connected with the piston , wherein the outer strain bridge circuit , the inner strain bridge circuit and the driving mechanism are all electrically connected with the processor.2. The zero-strain soil pressure sensor according to claim 1 , ...

AN INTEGRATED SYSTEM AND METHOD FOR MEASURING DEFORMATIONS AND/OR STRESSES IN ONE-DIMENSIONAL ELEMENTS

An integrated measuring system () comprises a structural element () for building constructions, having an internal cavity (), hermetically closed to contain a compressible fluid (), and a measuring system () for measuring stresses and/or deformations on the structural element (), measuring system () whereby it is possible to measure the pressure and temperature of the fluid () so as to measure a change in fluid pressure and determine a variation of the volume of the cavity () resulting from an action (F) imparted to the structural element (). 19. Integrated measuring system () , comprising:{'b': 10', '10', '14', '20', '14', '16, 'a structural element (), adapted to be incorporated in a building construction and elongated in a longitudinal direction, said structural element () having an internal cavity () hermetically closed or closable by means of closure means (), said internal cavity () being filled with a compressible fluid ();'}{'b': 12', '10', '18', '14', '12', '16', '14', '14', '10, 'a measurement system (), adapted to measure deformations and/or stresses on the structural element () along said longitudinal direction, the system comprising a pressure measuring device () in contact with the fluid in the internal cavity (), said measurement system () further comprising a device for measuring the temperature of the fluid () and/or the temperature of the inner wall of the cavity (), in such a way that the system is able to determine a volume variation of the cavity () by measuring a pressure and temperature variation of the fluid resulting from an action (F) imparted to the structural element (),'}{'b': '14', 'wherein the cavity () extends along a direction substantially perpendicular with respect to said longitudinal direction.'}2141110. A system according to claim 1 , wherein the cavity () intersects a central longitudinal axis () of the structural element ().31410. A system according to or claim 1 , wherein the cavity () passes through the structural element ...

User interface system and method

One embodiment of the user interface system comprises: A tactile layer defining a tactile surface touchable by a user and plurality of deformable regions operable between a retracted state, wherein the deformable regions are flush with an undeformable region of the tactile layer; and an expanded state, wherein the deformable regions are proud of the undeformable region. A substrate joined to the undeformable region and defining a fluid port per deformable region and a fluid channel. A displacement device displacing the fluid through the fluid channel and the fluid ports to transition the deformable regions from the retracted state to the expanded state. A first and a second pressure sensor detecting changes in fluid pressure within the fluid due to a force applied to a particular deformable region. A processor determining the particular deformable region to be location of the input force based upon the detected fluid pressure changes.

SHAVING SYSTEMS

Replaceable shaving assemblies are disclosed that include a blade unit, an interface element configured to removeably connect the blade unit to a handle, on which the blade unit is pivotably mounted, and a return element disposed between the blade unit and interface element. The return element serves as interface piece, connector and pivot all in one. Shaving systems including such shaving assemblies are also disclosed, as are methods of using such shaving systems. 120.-. (canceled)21. A replaceable shaving assembly comprising:a blade unit having a longitudinal axis;an interface element configured to removeably connect the blade unit to a handle, on which the blade unit is pivotably mounted, the interface element including an elastomeric return element in the form of one or more fingers extending from the interface element in a direction generally perpendicular to the longitudinal axis of the blade unit, the return element being configured to provide a return force between the blade unit and the handle; andone or more support features located on the blade unit that act as a stop for a distal end of the return element;wherein the interaction of the support feature(s) with the return element provides a return force between the blade unit and the handle throughout the range of the angle of the blade unit with respect to the handle.22. The shaving assembly of wherein the return element is configured to bias the blade unit towards a rest position with respect to a pivot axis that is generally parallel to the longitudinal axis of the blade unit.23. The shaving assembly of claim 21 , wherein the return element comprises a thermoplastic elastomer or thermoplastic urethane.24. The shaving assembly of wherein the interface element comprises a substantially rigid portion defining a cavity configured to receive a distal end of the handle.25. The shaving assembly of wherein the return element is molded onto or attached to the substantially rigid portion of the interface element. ...

PRESSURE ADAPTIVE SENSING SYSTEM AND METHOD

A pressure adaptive sensor system has at least one transmitting antenna and at least one receiving antenna adapted to receive a signal from at least one transmitting antenna. A measurement of received signals is used in order to determine pressure of an operable portion of the electrode on an object. The determined pressure is used by a pressure actuator to alter a contact profile when an electrode is in contact with skin or a surface. 1. A sensing system , comprising:a plurality of transmitting antennas operably connected to a signal generator, the signal generator adapted to transmit a plurality of frequency orthogonal signals on each one of the plurality of transmitting antennas;a plurality of receiving antennas operably connected to a processor, the plurality of receiving antennas adapted to receive at least one of the plurality of frequency orthogonal signals transmitted by the plurality of transmitting antennas;a processor adapted to process measurements of the plurality of frequency orthogonal signals received in order to determine information regarding a body part, wherein at least one received plurality of frequency orthogonal signals is processed to determine a measurement that provides an indication of pressure on the body part; anda pressure actuator adapted to modify contact with the body part based on the indication of pressure on the body part.2. The sensing system of claim 1 , wherein the sensing system is part of a wearable adapted to be placed on a wrist.3. The sensing system of claim 1 , wherein the measurement that provides an indication of pressure on the body part is a measurement of impedance.4. The sensing system of claim 1 , wherein the measurement that provides an indication of pressure on the body part is a measurement of voltage taken.5. The sensing system of claim 1 , wherein the pressure actuator comprises a material that changes physical properties using electric charge.6. The sensing system of claim 1 , wherein the pressure actuator ...

Device for measuring the preload of two cylinders set against one another

Load indicating assembly

A portable load indicating assembly usable to weigh a vehicle by gauging the weight supported by each ground wheel, the load indicating assembly having a resiliently deformable member positioned between a support base and a load platen and indicating means sensitive to the deformation of said resiliently deformable member caused by a load on said platen, the indicating means being calibrated to indicate the weight on said platen.

Load indicating assembly

Force sensor assembly with integrated rigid, movable interface for transferring force to a responsive medium

A force sensor assembly incorporates an integrated plunger to provide an economical assembly which can be calibrated and mounted as a single unit. The force sensor assembly utilizes a retainer to movably capture a solid interface within an opening in the retainer. The solid interface includes a flange positioned within the assembly below the retainer opening. The flange dimensions are greater than the retainer opening to retain the solid interface within the assembly. The retainer is attached to a housing body having a gel filled cavity underlying the retainer opening. A diaphragm free floats on the gel within the housing body and contacts the solid interface. The gel transmits a force exerted on the diaphragm from the solid interface to a pressure sensor mounted at the base of the housing body cavity. A ceramic substrate having an integrated resistor network supports the pressure sensor and an amplifier. The pressure sensor and accompanying electronic components provide a conditioned electrical signal corresponding to the force applied to the solid interface.

Fluid-pressure operated device

Dispenser and method for precision calculating liquid level in syringe

본 발명은 시린지(Syringe) 내에 충진된 액체를 토출시키기 위한 기체를 공급하는 압축 기체원과 제1배관을 통해 연결되는 제1비례제어밸브; 일측이 상기 제1비례제어밸브와 제2배관을 통해 연결되고, 타측이 상기 시린지와 제3배관을 통해 연결되어, 상기 제1비례제어밸브를 통해 조정된 압력을 갖춘 기체의 상기 시린지로의 공급 여부를 결정하는 토출 밸브; 상기 제1배관 내지 제3배관 중 특정 배관상의 일측에 설치되어 설치지점을 지나는 기체의 압력을 감지하는 제1압력센서; 상기 제1배관 내지 제3배관 중 상기 제1압력센서의 설치지점과 상기 압축 기체원 사이 특정 배관상의 일측에 설치되어 설치지점을 지나는 기체의 압력을 감지하는 제2압력센서; 및 상기 제1압력센서 및 제2압력센서를 통해 감지되는 시간별 압력값을 이용한 제1압력 적분값 및 제2압력 적분값을 기반으로 토출 회차별 상기 시린지 내에 남은 액체잔량 추정값을 보정 산출하여, 산출된 액체잔량 추정값에 따라 상기 토출 밸브의 개폐 상태를 제어하는 제어모듈;를 포함하여 시린지 내 액체 잔량에 따른 미세 정량 토출 기능을 구비한 디스펜서 및 이를 통한 시시린지 내 액체잔량 정밀 산출 방법 방법에 관한 것이다. The present invention provides a first proportional control valve connected through a first pipe and a compressed gas source for supplying a gas for discharging a liquid filled in a syringe (Syringe); One side is connected to the first proportional control valve and the second pipe, and the other side is connected to the syringe and the third pipe, and the gas having the pressure adjusted through the first proportional control valve is supplied to the syringe. a discharge valve to determine whether or not; a first pressure sensor installed on one side of a specific pipe among the first to third pipes to sense the pressure of the gas passing through the installation point; a second pressure sensor installed on one side of a specific pipe between the installation point of the first pressure sensor and the compressed gas source among the first to third pipes to sense the pressure of the gas passing through the installation point; And based on the first pressure integral value and the second pressure integral value using the pressure values for each time detected by the first pressure sensor and the second pressure sensor, the estimated value of the remaining amount of liquid remaining in the syringe for each discharge time is corrected and calculated. A dispenser having a micro-quantitative discharge function according to the remaining amount of liquid in a syringe, including a ...

标定系统

公开了一种标定系统。标定系统包括：标定台，用于固定测试螺栓的第一端并为拉伸器提供支撑；泵站，用于为所述拉伸器提供液压压力；压力传感器，用于测量所述液压压力；力传感器，用于测量所述拉伸器对所述测试螺栓施加的力；控制器，根据所述压力传感器测量的液压压力计算所述泵站施加给所述拉伸器的作用力，并将所述泵站施加给所述拉伸器的作用力与所述力传感器测量的力进行比较。根据本发明的实施例的标定系统能够保证拉伸器及其拉伸泵站的精度，进而保证螺栓连接的强度和可靠性。

圧力変換器

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Гидравлический датчик напряжений для ледяного покрова

Изобретение относится к оборудованию и измерительной технике и может быть использовано для измерения направленных напряжений во льду. Устройство включает плоский приемный элемент с внутренней полостью и датчик давления, заполненные жидкостью. При этом плоский приемный элемент содержит сменную соединительную трубку и подключен через разветвитель к внешнему измерительному устройству с установленными на нем датчиком давления и манометром и к компенсационному внешнему регулятору давления. Технический результат заключается в повышении точности измерения направленных напряжений во льду, который достигается за счет сохранения постоянной чувствительности устройства во всем рабочем диапазоне измерений. 1 з.п. ф-лы, 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 765 802 C1 (51) МПК G01L 1/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G01L 1/02 (2021.05) (21)(22) Заявка: 2020139205, 27.11.2020 (24) Дата начала отсчета срока действия патента: Дата регистрации: 03.02.2022 (45) Опубликовано: 03.02.2022 Бюл. № 4 (54) Гидравлический датчик напряжений для ледяного покрова (57) Реферат: Изобретение относится к оборудованию и измерительному устройству с установленными измерительной технике и может быть на нем датчиком давления и манометром и к использовано для измерения направленных компенсационному внешнему регулятору напряжений во льду. Устройство включает давления. Технический результат заключается в плоский приемный элемент с внутренней повышении точности измерения направленных полостью и датчик давления, заполненные напряжений во льду, который достигается за счет жидкостью. При этом плоский приемный элемент сохранения постоянной чувствительности содержит сменную соединительную трубку и устройства во всем рабочем диапазоне измерений. подключен через разветвитель к внешнему 1 з.п. ф-лы, 1 ил. R U 2 7 6 5 8 0 2 (56) Список документов, цитированных в отчете о поиске: SU 1633295 A1, 07.03.1991. RU 2254464 C1, 20.06.2005. ...

Dynamometric device for system for component pressing on part

FIELD: machine building. SUBSTANCE: present invention relates to the field of crimping devices for the nuts and studs on the part, particularly, crimping devices performing the force attachment. Device (10) for measuring force, applied by means of fastening device (20) of crimped element, wherein said device is provided with threaded rod (21) having internal or external thread, wherein device comprises: hydraulic chamber (11), containing fluid (11') and extending along longitudinal axis (Ox); piston (12) made with possibility of sliding inside hydraulic chamber (11) along axis (Ox); threaded connector (13), attached to piston (12), wherein threaded connector (13) has external or internal thread made such that threaded rod (21) is screwed on threaded connector (13), as a result of which threaded rod (21) can apply axial force (Fa) to piston (12), forming movement of piston (12) along axis (Ox), inside hydraulic chamber (11); pressure gauge (14), communicating with hydraulic chamber (11) and configured to measure pressure (P) inside hydraulic chamber (11) created by axial force (Fa), applied to piston (12) by means of threaded rod (21) of fastening device (20), stop (17), configured to receive opposite support (22) of fastener (20) for securing fastener (20) to device (10) by screwing threaded rod (21) on threaded connector (13) and resting opposite stop (22) in stop (17). EFFECT: technical result is creation of a dynamometric device suitable for crimping devices using force, which is compact, mobile and is made with possibility of reliable and effective measurement of maximum force. 8 cl, 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 728 818 C2 (51) МПК G01L 5/24 (2006.01) G01L 1/02 (2006.01) B25B 29/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G01L 1/02 (2019.02); G01L 5/24 (2019.02); G01L 7/166 (2019.02) (21)(22) Заявка: 2017144023, 18.05.2016 (24) Дата начала отсчета срока действия патента: ...

DYNAMOMETRIC DEVICE FOR THE SYSTEM FOR THE RELIEF OF ITEM ON A DETAIL

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 144 023 A (51) МПК G01L 5/24 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017144023, 18.05.2016 (71) Заявитель(и): БЁЛЬХОФФ ОТАЛУ С.А. (FR) Приоритет(ы): (30) Конвенционный приоритет: 18.05.2015 FR 1554436 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 18.12.2017 R U (43) Дата публикации заявки: 18.06.2019 Бюл. № 17 (72) Автор(ы): МАКШИЕРАЛЬДО, Давид (FR), ГАРГАЛЛО, Жорди (FR), МАТТЛЕР, Клод (FR) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2016/185134 (24.11.2016) A Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Устройство (10) для измерения силы, прилагаемой посредством крепежного устройства (20) обжимаемого элемента, причем упомянутое крепежное устройство предусмотрено с резьбовым стержнем (21), имеющим внутреннюю или наружную резьбу, причем устройство содержит: - гидравлическую камеру (11), содержащую текучую среду (11') и проходящую вдоль продольной оси (Ox); - поршень (12), выполненный с возможностью скольжения внутри гидравлической камеры (11) вдоль продольной оси (Ox); - резьбовой соединитель (13), прикрепленный к поршню (12), причем резьбовой соединитель (13) имеет наружную или внутреннюю резьбу, выполненную таким образом, чтобы резьбовой стержень (21) навинчивался на резьбовой соединитель (13), в результате чего резьбовой стержень (21) может прилагать осевую силу (Fa) к поршню (12), образуя перемещение поршня (12) вдоль продольной оси (Ox), внутри гидравлической камеры (11); - манометр (14), сообщающийся с гидравлической камерой (11) и выполненный с возможностью измерения давления (P) внутри гидравлической камеры (11), созданного посредством осевой силы (Fa), приложенной к поршню (12) посредством резьбового стержня (21) крепежного устройства (20). Стр.: 1 A 2 0 1 7 1 4 4 0 2 3 (54) ДИНАМОМЕТРИЧЕСКОЕ УСТРОЙСТВО ДЛЯ СИСТЕМЫ ДЛЯ ОБЖИМАНИЯ ...

User interface system and method

One embodiment of the user interface system comprises: A tactile layer defining a tactile surface touchable by a user and plurality of deformable regions operable between a retracted state, wherein the deformable regions are flush with an undeformable region of the tactile layer; and an expanded state, wherein the deformable regions are proud of the undeformable region. A substrate joined to the undeformable region and defining a fluid port per deformable region and a fluid channel. A displacement device displacing the fluid through the fluid channel and the fluid ports to transition the deformable regions from the retracted state to the expanded state. A first and a second pressure sensor detecting changes in fluid pressure within the fluid due to a force applied to a particular deformable region. A processor determining the particular deformable region to be location of the input force based upon the detected fluid pressure changes.

an loading apparatus of transferable

PURPOSE: A movable loading system is provided to simplify assembly, dismantlement and transport, to use for various loading structures and to heighten safety and load bearing capacity. CONSTITUTION: The movable loading system(100) comprises a main frame(110), a center frame(120) fixed on the central top of the main frame(110), H-steel support frames(130,130a,131,131a) installed slantingly between intermediate tops of the main frame(110), right and left tensile bars(140,140a) installed on the right and left tops of the main frame(110), and many steel strands(150) tensioning the right, left tensile bars(140,140a) over a steel strand bracket(125) on the center frame(120).

Patent JPH0131581B2

Flexible force sensor capable of sensing muscle hardness and muscle hardness detection method

本发明公开了传感器领域的一种可感知肌肉硬度的柔性力传感器及肌肉硬度的检测方法，柔性力传感器包括柔性电路板，柔性电路板的表面设置有力感知模块，力感知模块包括多个内部腔体封装气敏元件的微气囊，且每个微气囊朝向肌肉的外侧形成有感知肌肉硬度的力感知触头，气敏元件与柔性电路板电连接。通过将弹性绑带固定在肢体处，使柔性力传感器与肌体接触并保持相对固定，变换肌体的肌肉硬度状态，气敏元件可以基于力感知触头的受力获取微气囊内部腔体变化的气压值。本发明的柔性力传感器具有易穿戴性，可通过阵列式的力触头来获取人体肌肉的力触觉矩阵信息，结合相应的机器学习方法，可获取准确的肌肉状态信息。

Measuring method of hydrogen insertion and measuring method of hydrogen diffusivity

본 실시예에 의한 수소 장입량 연산 방법은 기지 질량의 시료가 위치하는 챔버에 미리 설정된 초기 압력으로 수소 가스를 주입하는 수소 가스 주입 단계와, 수소 가스가 시료에 장입되어 압력이 평형 상태를 이룰 때의 평형 압력을 측정하는 평형 압력 측정 단계와, 수소 가스의 압력 변화율로부터 시료의 수소 장입량을 연산하는 수소 장입량 연산 단계를 포함한다. The hydrogen loading amount calculation method according to this embodiment includes a hydrogen gas injection step of injecting hydrogen gas at a preset initial pressure into a chamber in which a sample of a known mass is located, and the hydrogen gas is charged into the sample and the pressure is equalized. It includes an equilibrium pressure measuring step of measuring the equilibrium pressure, and a hydrogen loading amount calculating step of calculating the hydrogen loading amount of the sample from the pressure change rate of the hydrogen gas.

Noise reducing type vacuum blender

The present invention relates to a noise reduction type vacuum blender. More specifically, the noise reduction type vacuum blender can reduce the noise generated in a vacuum space when operating the blender and grinding a food product in a vacuum. According to the present invention, the noise reduction type vacuum blender includes: a driving body having a motor mounted therein; a storage member which is detachably coupled to the upper part of the driving body and has a storage unit formed on the inside to store food products; a blade which is arranged in the storage unit and is connected to the motor to grind the food products stored in the storage unit; a chamber member which covers the exterior of the storage member and is coupled to the driving member detachably; and a first check valve which is mounted on the storage member and selectively connects the storage unit and the inside of the chamber member to be opened only when air is discharged from the storage unit to the outside. A vacuum unit is formed between the exterior of the storage member and the inside of the chamber member. Air in the vacuum unit and the storage member is removed by using a vacuum pump.

Noise reducing type vacuum blender

The present invention relates to a vacuum blender with reduced noise and, more specifically, to a vacuum blender with reduced noise which can reduce noise produced when operating a blender while grinding food in a vacuum state. According to the present invention, the vacuum blender with reduced noise comprises: an accommodation member in which food is accommodated; a first check valve mounted on the accommodation member; a chamber member to cover the accommodation member; and a second check valve mounted on the chamber member. A vacuum unit is formed between the accommodation member and the chamber member. When a vacuum pump arranged on the outside operates while a suction hose of the vacuum pump is coupled to the second check valve, air in the vacuum unit is discharged to the outside by the second check valve and the vacuum pump, and the first check valve is opened by a vacuum pressure to discharge air in the accommodation member to the outside through the first check valve, the vacuum unit, and the second check valve by the vacuum pump.

Dynamometer

1509687 Weighing device HAENNI & CIE AG 11 July 1975 [17 July 1974] 29342/75 Heading G1W A weighing device comprises a base 40, a plurality of elastically deformable tubular spring elements 37 on the base, the elements having an elliptical crosssection with the smaller axis extending perpendicular to the base, a load platform 38 resting on the elements 37, and a volume gauge 52 connected to the interiors of the elements 37, the elements 37 being filled with liquid and the gauge 52 indicating the weight induced displacement of liquid out of the elements. Each element 37 may enclose a bar (39) which has a coefficient of expansion less than that of the liquid to provide temperature compensation.

Weighing method

an loading apparatus of transferable

본 발명은 토목 건축구조물의 말뚝, 토목 건축구조물의 슬래브, 교량의 상판, 도로면, 각종 교량용 거더로 사용되는 스틸박스, 피씨 비임, 피씨 박스 등과 같은 각종 토목 건축 구조물의 하중 구조물에 대하여 내구력과 안전성을 측정하는 재하(載荷)시험방법에 사용되는 이동식 재하장치에 관한 것으로, 재하장치의 구성을 일정길이를 갖는 수평의 메인프레임을 기본부재로 하여 그 상단에 중앙프레임과 다수개의 경사형 보강프레임들과 메인프레임의 양측단 간을 중앙프레임에 대하여 긴장시키는 긴장부재 들에 의하여 삼각 트러스 형태의 조립식 강재 구조물로 형성함을 특징으로 하여, 종래의 재하장치들에 비하여 조립 및 해체, 이동이 가능하여 단위 부재의 하중 구조물에 현장에서 직접적으로 현장재하시험이 가능하게 하며, 또한 반복사용과 반복재하에 의하여 정,동적 재하시험이 기능하게하여 재하시험의 경제성을 높여주고, 구조적인 안전성을 가져서 재하시험의 수행과정에서 안전사고의 위험성이 없고 재하시험의 신뢰도를 높일 수 있는 이동식 재하장치를 제공함에 특징이 있는 것이다.

Automatic mode brake device of a rail vehicle

Device for measuring power in target striking

The present invention relates to a device for accurately and prcising measuring power at a time when striking is performed on a target such as an electronic body protector used in martial arts matches, sparring for practice, martial arts training, and the like as well as a striker used in striking training, exercise practice, and the like by professional athletes or ordinary people. According to the present invention, an air pocket-type target is applied as the target such as the striker and the electronic body protector, the power applied to the target is detected based on the detection of a change in the volume of the air pocket during the striking, and the power is measured based on an impact force applied to the target, which results in the realization of a novel power measurement system for striking-based scoring. As a result, scoring efficiency can be improved based on the accurate and precise measurement of the power during the striking. In addition, fair evaluation can be performed in relation to various competition events and even ordinary people can be interested in the exercise practice by the device for measuring the power during the target striking.

Detector for changes in length or interval

System for managing core stability excercise

코어안정화 운동 관리 시스템이 개시된다. 상기 코어안정화 운동 관리 시스템은 복근이 수축되어 압력센서를 밀어내는 힘을 감지하는 적어도 하나의 감지부, 상기 복근이 최대로 수축된 경우 상기 감지부에서 측정된 최대값을 수신하여 상기 최대값의 1/n(n은 실수)인 기준값을 산출하고, 상기 기준값을 대응하는 구간마다 디스플레이장치에 표시하는 기준값제어부 및 상기 복근의 수축과 이완에 따라 상기 감지부에서 감지된 측정값을 수신하여 상기 기준값이 표시되는 상기 디스플레이장치에 상기 측정값을 표시하는 측정값제어부를 구비할 수 있다.

Liquid-filled soil stress test device and test method

本发明涉及一种液囊式土应力测试装置，包括囊式应力壳体、保护管和变送转化器：囊式应力壳体内填充有应力传递介质，传递介质为液态介质，囊式应力壳体与土体的接触面为圆弧形；变送转化器将传递介质传递的应力直接生成应力信号，并通过信号线缆输出，变送转化器与囊式应力壳体密封连接；保护管安装于变送转化器的外侧，端头分别开口而引出信号线缆，另一端头与囊式应力壳体密封连接。本发明还公开了一种液囊式土应力测试装置的测试方法。本发明的优点体现在：能够实现与土体全方向的接触，并充分感知单元土体应力变化情况；能够随土体变形而改变形状，具有较大的土体变形适应性。可准确测试应力变化状态。

Method for evaluating external force acting on electrohydrostatic drive

FIELD: physics. SUBSTANCE: invention relates to a method for evaluating an external force acting on an electrohydrostatic drive, wherein the drive comprises a hydraulic cylinder, comprising a first chamber, a second chamber and a piston located between the first chamber and the second chamber; pump configured to inject fluid into chambers to control piston movement; and electric motor, which drives pump; wherein the method includes steps of: with the help of at least one status observer (21, 22) estimating a dynamic component and a static component of the equivalent fluid pressure difference between the first chamber and the second camera based on the rotation speed of the electric motor, position of the piston and electric motor feed current using post-processing module (23) evaluating the external force as a combination of the estimated dynamic component and the static component of the fluid pressure difference. EFFECT: technical result is possibility of determining external force acting on electrohydrostatic drive without resorting to use of sensors measuring pressure difference in hydraulic cylinder chambers or external force. 12 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 709 707 C2 (51) МПК G01L 1/02 (2006.01) G01L 1/08 (2006.01) G01L 15/00 (2006.01) G01L 13/00 (2006.01) F15B 11/028 (2006.01) F15B 19/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G01L 1/02 (2019.08); G01L 1/08 (2019.08); G01L 15/00 (2019.08); G01L 13/00 (2019.08); F15B 11/028 (2019.08); F15B 19/00 (2019.08) (21)(22) Заявка: 2017144005, 18.05.2016 18.05.2016 Дата регистрации: Приоритет(ы): (30) Конвенционный приоритет: 18.05.2015 FR 1554437 (43) Дата публикации заявки: 18.06.2019 Бюл. № 17 (56) Список документов, цитированных в отчете о поиске: DE 102006052810 A1, 15.05.2008. DE 102010007042 A1, 11.08.2011. EP 271744 A3, 09.11.1988. US 7424937 B2, 16.09.2008. (45) Опубликовано: 19.12.2019 Бюл. № 35 (86) Заявка PCT: EP 2016/ ...

Pressure responsive measuring apparatus

Measuring method of variable-stroke flexible force sensor based on pneumatic variable stiffness

本发明公开了一种基于气动变刚度的可变量程柔性力传感器的测量方法，其内容是：当传感器受到拉伸时，柔性基体受拉变形，将需要检测的电阻值转化为电压值输出电压信号，如没超过传感器的当前量程，测量结果为精确值；当传感器受力过大时，基体拉伸变形大于20％时，传感器信号的非线性明显增加，如测量超过当前量程，向传感器输入一定压力的气体，增加其整体刚度，使其在受到大载荷力的情况下依然能使基体中微承载通道中的变形保持在线性区，在增加了传感器测量量程的同时也提高了测量的精度；重复所述进行信号检测、判断及变刚度过程，直到检测到传感器在其变形线性区输出的信号为止，最后根据最终输出信号与通入的气体压力可得到待测量的力的大小。

User interface system and method

One embodiment of the user interface system comprises: A tactile layer defining a tactile surface touchable by a user and plurality of deformable regions operable between a retracted state, wherein the deformable regions are flush with an undeformable region of the tactile layer; and an expanded state, wherein the deformable regions are proud of the undeformable region. A substrate joined to the undeformable region and defining a fluid port per deformable region and a fluid channel. A displacement device displacing the fluid through the fluid channel and the fluid ports to transition the deformable regions from the retracted state to the expanded state. A first and a second pressure sensor detecting changes in fluid pressure within the fluid due to a force applied to a particular deformable region. A processor determining the particular deformable region to be location of the input force based upon the detected fluid pressure changes.

Testing adaptor for testing leakage of channel valve of air compressor

이 발명은 두께방향으로 다수의 관통공(17)들이 형성되어 있는 밸브시트(12)와, 전면을 상기 밸브시트(12)에 맞댄 채로 후면에서 스프링에 의해 밀리고 있도록 구성된 밸브작동세트(15)와, 상기 밸브작동세트(15)의 스프링을 지지하고 상기 밸브시트(12)에 형성된 다수의 관통공(17)들을 통해 상기 밸브작동세트(15)의 스프링력을 극복하고 밀려나온 유체가 통과할 관통공(18)들이 형성되어 있는 밸브정지판(14) 및, 상기 밸브작동세트(15)의 스프링력을 조절하여 밸브개방압력을 조정할 수 있는 밸런서를 포함하는 밸브몸체(16)를 구비하고, 상기 밸브몸체(16)의 밸브시트(12)측이나 밸브정지판(14)측에 부착되는 밸브헤드(11)를 포함하는 채널밸브(10A,10B)의 누설 및 정상작동여부를 용이하게 시험할 수 있게 하기 위해, 압력원에 연결되고 상기 밸브몸체(16)의 밸브정지판(14)측에 조립되어 모든 채널에 동시에 가압유체를 주입할 수 있게 형성된 주입부(21) 및, 상기 밸브몸체(16)의 밸브시트(12)측에 밀착되어 상기 밸브몸체(16)를 통한 유체의 누설여부를 확인할 수 있는 감지부(22)를 포함하는 것을 특징으로 하는 시험용 어댑터를 제공하며, 상기 감지부(22)는 압력게이지(28)를 부가적으로 포함하여 누압여부를 감지하도록 구성될 수 있다. The present invention provides a valve seat (12) having a plurality of through holes (17) formed in a thickness direction, and a valve operating set (15) configured to be pushed by a spring at the rear side with the front surface facing the valve seat (12); In order to support the spring of the valve operation set 15 and to overcome the spring force of the valve operation set 15 through the plurality of through holes 17 formed in the valve seat 12, the fluid to be pushed out passes through. And a valve body 16 including a valve stop plate 14 having balls 18 formed therein, and a balancer for adjusting a valve opening pressure by adjusting a spring force of the valve operation set 15, The leakage and normal operation of the channel valves 10A and 10B including the valve head 11 attached to the valve seat 12 side or the valve stop plate 14 side of the valve body 16 can be easily tested. Valve stop of the valve body 16 connected to a pressure source for The injection unit 21 is assembled to the plate 14 side and formed to inject the pressurized fluid into all the channels at the same time, and close to the valve seat 12 side of the valve body 16 to close the valve body 16 It provides a test adapter characterized in that it comprises a detection unit 22 that can determine whether the leakage of the fluid through, the detection ...

Patent RU2017144005A3

ВИ“? 2017144005” АЗ Дата публикации: 26.09.2019 Форма № 18 ИЗИМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2017144005/28(075584) 18.05.2016 РСТ/ЕР2016/061117 18.05.2016 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 1554437 18.05.2015 ЕК Название изобретения (полезной модели): [Х] -как заявлено; [ ]- уточненное (см. Примечания) СПОСОБ ОЦЕНКИ ВНЕШНЕЙ СИЛЫ, ДЕЙСТВУЮЩЕЙ НА ЭЛЕКТРОГИДРОСТАТИЧЕСКИЙ ПРИВОД Заявитель: САФРАН ЭЛЕКТРОНИКС ЭНД ДИФЕНС, ЕК 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) СО. 1/02 (2006.01) СОТ. 15/00 (2006.01) Е15В 11/028 (2006.01) СО. 1/08 (2006.01) СО. 13/00 (2006.01) Е15В 19/00 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) 011. 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): Е-Габгагу, ЕАРАТГУ, Езрасепе, Соофе, Соозе Раеп($, 7-Р1а Ра, КТРК5, РАТЕМТСОРЕ, Ра еагсВ, Оцез{е]-Огри, КОРТО, ИЗРТО 6. ДОКУМЕНТЫ, ...

METHOD FOR EVALUATING EXTERNAL FORCE ELECTROHYDROSTATIC ACTUATOR

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 144 005 A (51) МПК G01L 1/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017144005, 18.05.2016 (71) Заявитель(и): САФРАН ЭЛЕКТРОНИКС ЭНД ДИФЕНС (FR) Приоритет(ы): (30) Конвенционный приоритет: 18.05.2015 FR 1554437 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 18.12.2017 R U (43) Дата публикации заявки: 18.06.2019 Бюл. № 17 (72) Автор(ы): ФЕЛИСТ, Нирина (FR), ДЕЛЬБЕК, Скотт (FR), МЕРИ, Ксавье (FR) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2016/184898 (24.11.2016) R U (54) СПОСОБ ОЦЕНКИ ВНЕШНЕЙ СИЛЫ, ДЕЙСТВУЮЩЕЙ НА ЭЛЕКТРОГИДРОСТАТИЧЕСКИЙ ПРИВОД (57) Формула изобретения 1. Способ (120) оценки внешней силы, действующей на электрогидростатический привод (1), характеризующийся тем, что привод содержит гидроцилиндр (4), включающий в себя первую камеру (14), вторую камеру (15) и поршень (7), находящийся между первой камерой (14) и второй камерой (15), насос (3), выполненный с возможностью нагнетания текучей среды в камеры (14,15) для управления перемещением поршня (7), и электрический двигатель (2), приводящий в действие насос (3), при этом внешняя сила является осевой силой, действующей на гидроцилиндр (4), при этом способ содержит этапы, на которых (121,122) при помощи по меньшей мере одного наблюдателя состояния (21,22) оценивают динамическую составляющую и статическую составляющую эквивалентной разности давлений текучей среды между первой камерой (14) и второй камерой (15) на основании скорости вращения электрического двигателя (2), положения поршня (7) и тока питания электрического двигателя (2), (123) при помощи модуля (23) пост-обработки оценивают внешнюю силу как комбинацию указанных оценочных динамической составляющей и статической составляющей разности давлений текучей среды. 2. Способ по п. 1, который содержит этапы, на которых (121) при помощи первого наблюдателя состояния (21) оценивают динамическую составляющую эквивалентной ...

Indirect Compression Load Test Method of PC Pile Using Reaction Pile

[목적] 본 발명은 강관 말뚝에만 적용가능한 것으로 알려진 간접압축재하시험법을 PC콘크리트 말뚝에서도 효과좋게 적용할 수 있게 개발한 PC콘크리트 말뚝의 간접압축재하시험법을 제공하려는 것이다. [구성] 하나의 시험말뚝과 그 주변에 산재한 다수의 반력말뚝을 선정하여 항두정리하고, 개개의 반력말뚝내에 콘크리트를 타설함과 동시에 앵커를 매설하여 굳힌 다음에 상기 앵커를 기존의 간접압축재하시험법에 따라 설치한 메인빔 위에 걸친 서브빔과 연결한 후 메인빔을 떠받치고 있는 잭에 유압을 가하여 재하시험하는 것이다.

Mechanical force to fluid pressure transducer - has force applied to flap valve restricting egress of fluid from conduit in which pressure varies accordingly

A manometric transducer converts a mechanical force (F) applied to an actuating surface (30) into a fluid pressure signal (P). A primary high pressure source (P1) feeds a conduit (12) through a constriction (16) at one end. At the opposite end a flap valve (22) restricts the escape of fluid through an expanded orifice (22). Mechanical force on the flap valve brings about a pressure rise in the conduit which is available as an output pressure signal at take off point (26).

FORCE MEASURING DEVICE

Parking brake pressure monitoring device - is fitted inside master brake cylinder to warn if pressure insufficient for hold-off

The master operating cylinder is fitted with a sensor which monitors the brake pressure by the effect on the sealing gaskets of the cylinder. The monitor operates electric contacts when a set pressure is reached, which corresponds to a set brake pressue. This pressure level is chosen as the minimum level required to operate the hold-off brake cylinders. The hold-off cylinders are usually locked in the 'off' position and are released for parking control. The electric contacts operate a control light so that the driver can easily see if there is sufficient pressure to operate the parking brake safely.

WEIGHING DEVICE FOR PARTICULARLY MEASURING WITH HIGH PRECISION OF LARGE WEIGHT

EFFORT MEASURING DEVICE FOR A CRIMPING SYSTEM OF AN ELEMENT ON A WORKPIECE

Le dispositif de mesure (10) d'un effort appliqué par un appareil de pose (20) muni d'une tige filetée (21) ayant un filetage externe ou interne, comporte : - une chambre hydraulique (11) comportant un fluide (11') ; - un piston (12) configuré pour coulisser à l'intérieur de la chambre hydraulique (11) ; - un connecteur fileté (13) fixé au piston (12), le connecteur fileté (13) ayant un filetage configuré pour que la tige filetée (21) se visse sur le connecteur fileté (13), de sorte que la tige filetée (21) puisse imposer un effort axial (Fa) sur le piston (12) entraînant une course du piston (12), dans la chambre hydraulique (11); - un manomètre (14) communiquant avec la chambre hydraulique (11), configuré pour mesurer une pression (P) au sein de la chambre hydraulique (11) créée par l'effort axial (Fa) appliqué au piston (12) par la tige filetée (21). The measuring device (10) for a force applied by a laying device (20) provided with a threaded rod (21) having an external or internal thread comprises: - a hydraulic chamber (11) comprising a fluid (11) '); a piston (12) configured to slide inside the hydraulic chamber (11); a threaded connector (13) fastened to the piston (12), the threaded connector (13) having a thread configured so that the threaded rod (21) is screwed onto the threaded connector (13), so that the threaded rod (21) ) can impose an axial force (Fa) on the piston (12) causing a stroke of the piston (12), in the hydraulic chamber (11); a pressure gauge (14) communicating with the hydraulic chamber (11), configured to measure a pressure (P) within the hydraulic chamber (11) created by the axial force (Fa) applied to the piston (12) by the rod Threaded (21).

METHOD FOR ESTIMATING AN EXTERNAL FORCE EXERCISING AN ELECTROHYDROSTATIC ACTUATOR

PRESSURE SENSOR FOR ANTHROPOMORPHIC MANNEQUINS

Dynamometric device

METHOD FOR DETERMINING THE INTEGRITY OF A PLUG OF A PETROLEUM WELL

L'invention concerne un procédé de détermination de l'intégrité d'un bouchon (12) d'un puits pétrolier (10), le procédé comportant les étapes suivantes : - modélisation numérique d'au moins une caractéristique structurelle du bouchon (12), au cours du temps, lors de la solidification du bouchon (12) dans les conditions de profondeur ; - détection, au cours du temps, de la formation d'un micro-annulaire (25) et/ou de la détérioration du bouchon (12) en fonction de l'au moins une caractéristique structurelle du bouchon (12) par rapport à un critère de formation d'un micro-annulaire (25) et/ou de rupture ; - lorsque la formation d'un micro-annulaire (25) est détectée, modélisation numérique d'au moins une caractéristique structurelle du bouchon (12), au cours du temps, lors de la solidification du bouchon (12) dans les conditions de profondeur en fonction de l'évolution dimensionnelle du micro-annulaire (25) au cours du temps ; et - si le micro-annulaire (25) s'étend entre deux points critiques (A-D) du puis (10) et/ou si le bouchon (12) est détérioré, détection d'un défaut sur le bouchon (12). The invention relates to a method for determining the integrity of a plug (12) of a petroleum well (10), the method comprising the following steps: - numerical modeling of at least one structural characteristic of the plug (12) , over time, during the solidification of the plug (12) under the conditions of depth; - detecting, over time, the formation of a micro-annular (25) and / or the deterioration of the plug (12) according to the at least one structural characteristic of the plug (12) with respect to a criterion of formation of a micro-annular (25) and / or rupture; - When the formation of a micro-annular (25) is detected, numerical modeling of at least one structural feature of the plug (12), over time, during the solidification of the plug (12) under the conditions of depth according to the dimensional evolution of the ...

Device for measuring power in target striking

The present invention relates to a device for accurately and prcising measuring power at a time when striking is performed on a target such as an electronic body protector used in martial arts matches, sparring for practice, martial arts training, and the like as well as a striker used in striking training, exercise practice, and the like by professional athletes or ordinary people. According to the present invention, an air pocket-type target is applied as the target such as the striker and the electronic body protector, the power applied to the target is detected based on the detection of a change in the volume of the air pocket during the striking, and the power is measured based on an impact force applied to the target, which results in the realization of a novel power measurement system for striking-based scoring. As a result, scoring efficiency can be improved based on the accurate and precise measurement of the power during the striking. In addition, fair evaluation can be performed in relation to various competition events and even ordinary people can be interested in the exercise practice by the device for measuring the power during the target striking.

Force measurement in hostile medium like high temperature

The force detector has a piston (7) with one end (71) submitted to the force to be measured. The other piston end (72) exerts force on a liquid (17), its pressure being detected by a sensor (6), outside the hostile medium. The separation between the sensor and the second piston end defines a liquid filled volume, compressed by the piston. The hostile medium may be at an elevated temperature and the second piston end separated from the liquid by an elastic membrane (15). This produces a closed volume between piston and membrane which may be filled with glass or silica balls, of about 0.1 mm diameter. The piston may slide in a cylinder (8), separated by a container (22) formed by the membrane.

Scale intended in particular to measure the loads transmitted by the wheels of a vehicle

Measuring device for stress in coating and operation method

本发明提供一种镀层内应力的测量装置及操作方法，属于内应力检测技术领域。该装置包括：电源装置，为电镀提供电压；电镀装置，包括镀槽、阳极板、阴极等；自动温控装置，包括温控箱、加热管、热电偶等，为镀液以及工作液提供恒温环境；应力测量装置，包括工作腔体、毛细管等；支架；摄像机，对毛细管液面刻度进行监测；计算机，自动读取摄像机提供的照片中毛细管液面刻度变化值，经过软件处理将电信号转化为内应力值，最后显示为镀层内应力随时间变化的曲线。本发明结构简单，方便携带，操作简便，检测结果准确，不损伤破坏镀层。

Patent FR2135987A5

INTRA-ABDOMINAL PRESSURE SENSOR FOR ANTHROPOMORPHIC MANNEQUIN.

METHOD FOR ESTIMATING AN EXTERNAL FORCE EXERCISING AN ELECTROHYDROSTATIC ACTUATOR

L'invention concerne un procédé d'estimation d'une force extérieure s'exerçant sur un actionneur électrohydrostatique, l'actionneur comprenant un vérin incluant une première chambre, une deuxième chambre et un piston situé entre la première chambre et la deuxième chambre, une pompe propre à injecter du fluide dans les chambres pour commander un déplacement du piston, et un moteur électrique entrainant la pompe, le procédé comprenant des étapes de : - estimer au moyen d'au moins un observateur d'état (21, 22), une composante dynamique et une composante statique d'un écart de pression équivalent de fluide entre la première chambre et la deuxième chambre à partir d'une vitesse de rotation du moteur électrique, d'une position du piston et d'un courant d'alimentation du moteur électrique, - estimer la force extérieure au moyen d'un module de post-traitement (23) comme une combinaison de la composante dynamique et de la composante statique de l'écart de pression de fluide estimées. The invention relates to a method for estimating an external force exerted on an electrohydrostatic actuator, the actuator comprising a jack including a first chamber, a second chamber and a piston located between the first chamber and the second chamber, a pump adapted to inject fluid into the chambers for controlling a movement of the piston, and an electric motor driving the pump, the method comprising steps of: - estimating by means of at least one state observer (21, 22), a dynamic component and a static component of a fluid equivalent pressure difference between the first chamber and the second chamber from a rotational speed of the electric motor, a piston position and a feed stream of the electric motor, - estimating the external force by means of a post-processing module (23) as a combination of the dynamic component and the static component of the pressure difference of estimated fluid.

Hydraulic weighing device

SENSOR INTENDED FOR MEASURING STRESS OR WEIGHT LOADS

L'INVENTION CONCERNE UN CAPTEUR CONSISTANT EN UN CORPS SOUPLE DANS SA LONGUEUR ET IMMUABLE DANS SA SECTION TRANSVERSALE, DISPOSE ENTRE UN PLATEAU DE RECEPTION DE L'EFFORT APPLIQUE ET UN PLATEAU D'APPUI, LEDIT CORPS RENFERMANT UN LIQUIDE TRANSFORMATEUR DE L'EFFORT EN PRESSION ET ETANT RELIE A UN TRANSMETTEUR DE PRESSION. UN CAPTEUR D'EFFORT HYDRAULIQUE SUIVANT L'INVENTION, UTILISE SEUL OU EN PARALLELE AVEC D'AUTRES CAPTEURS SEMBLABLES TRANSFORME UN POIDS, UNE CHARGE OU UN EFFORT EN PRESSION ET PERMET, GRACE AU TRANSMETTEUR DE PRESSION, D'OBTENIR UN SIGNAL CONTINU EXPLOITABLE ET MESURANT AVEC PRECISION L'EFFORT APPLIQUE. THE INVENTION CONCERNS A SENSOR CONSISTING OF A BODY FLEXIBLE IN ITS LENGTH AND IMMUTABLE IN ITS CROSS SECTION, HAS BETWEEN AN APPLIED EFFORT RECEPTION PLATE AND A SUPPORT PLATE, THIS BODY CONTAINING A LIQUID TRANSFORMING THE EFFORT IN PRESSURE AND BEING CONNECTED TO A PRESSURE TRANSMITTER. A HYDRAULIC EFFORT SENSOR FOLLOWING THE INVENTION, USED ALONE OR IN PARALLEL WITH OTHER SIMILAR SENSORS, TRANSFORMS A WEIGHT, A LOAD OR A FORCE INTO PRESSURE AND ALLOWS, THANKS TO THE PRESSURE TRANSMITTER, TO OBTAIN AN OPERABLE CONTINUOUS SIGNAL AND ACCURATELY MEASURING THE APPLIED EFFORT.

METHOD FOR DETERMINING THE STATIC EFFORT DEVELOPED BY A SERVOCOMMANDE

The method involves determining instantaneous travel speed of a slidable element relative to a cylinder of a servo-controller (10). Static forces are determined using a specific equation when the instantaneous travel speed is positive and using another specific equation when the instantaneous travel speed is negative, where the equations contain parameters representing instantaneous static force developed by the servo-controller and other parameters representing maximum travel speed of the slidable element.

The Micro Flow Sensor and Hydrophone Using the Same

본 발명은 깊은 물속에서 발생하는 미세한 유체유동의 변화를 직접적으로 감지하여 유체유동의 크기와 방향을 모두 감지할 수 있도록 하는 미세 유체유동센서에 관한 것으로서, The present invention relates to a microfluidic flow sensor that can directly detect the change in the microfluidic flow occurring in deep water to detect both the magnitude and the direction of the fluid flow. 외부의 유체유동을 감지할 수 있도록 돌출 형성되고 유체유동에 의해 휘어지며, 직경에 비해 상대적으로 길이가 긴 고폭비를 갖는 미세 감응 구조물(11)과; 상기 미세 감응 구조물(11)이 설치된 지지 구조물(13)에 설치되고 상기 미세 감응 구조물(11) 하단의 사방에 각각 접합되어 상기 미세 감응 구조물(11)의 움직임에 따른 압력변화를 감지하는 4개의 응력센서(12);를 포함하며, 수십 내지 수백 ㎛ 크기의 미세한 유체유동을 감지하는 것을 특징으로 한다. A fine sensitive structure 11 protruded to be able to detect external fluid flow and bent by fluid flow, and having a high width ratio having a relatively long length compared to the diameter; Four stresses installed on the support structure 13 on which the micro-sensitized structure 11 is installed and bonded to four sides of the bottom of the micro-sensitized structure 11 to sense pressure changes according to the movement of the micro-sensitized structure 11. Sensor 12, including, it is characterized in that for detecting a fine fluid flow of several tens to hundreds of ㎛ size. 따라서, 미세 유체유동의 방향 및 크기를 계산할 수 있으므로 유체유동 감지의 신뢰성이 향상된다. 그리고, 이 미세 유체유동센서를 통해 진동파의 형태로 전달되는 수중소음을 측정하는 수중청음기를 구성할 수 있다. Therefore, the direction and magnitude of the microfluidic flow can be calculated, thereby improving the reliability of the fluidic flow sensing. In addition, it is possible to configure the hydrophone to measure the noise in the water delivered in the form of vibration waves through the microfluidic flow sensor. 미세 유체유동, 수중청음기, 패시브소나, 미세감응구조물, 고폭비, 진동파, 응력센서, 휨모멘트 Microfluidic fluid, hydrophone, passive sonar, microsensitized structure, high width ratio, vibration wave, stress sensor, bending moment

Vacuum measuring system

본 발명은 진공 측정 시스템에 관한 것으로 특히, 정확한 진공 측정을 위한 캐패시터 압력계의 구성에 관한 것이다. 이를 위한 본 발명의 진공 측정 시스템은 챔버, 챔버에 각각 연결된 진공 센서와 대기압 센서, 펌프와 챔버를 연결해 주는 제1공기 밸브, 챔버와 캐패시터 압력계를 연결해 주는 제2공기 밸브, 제1공기 밸브와 제2공기 밸브를 제어하는 제1제어부, 진공 정도에 따른 압력을 전기적 신호로 변환해 주는 캐패시터 압력계, 캐패시터 압력계의 두 출력을 비교하는 비교부, 비교부의 출력을 제어하는 제2제어부를 포함하는 것을 특징으로 한다.

Residual prestress messuring apparatus and tube type flat jack thereof

PURPOSE: A residual pre-stress measurement system and a flat jack of a tube type made of a flexible material are provided to measure the size of the residual pre-stress of a pre-stress concrete structure more precisely. CONSTITUTION: A residual pre-stress measurement system and a flat jack(100) thereof include a flat jack frame and an expansion tube. The flat jack frame(110) includes a hydraulic inlet(111) and a hydraulic outlet. An opening part is formed in the center part of the flat jack frame. The flat jack forms an expansion space part(S) of the flat jack frame. A first expansion surface(121) is formed on the front surface of the expansion tube, and a second expansion surface(123) is formed on the rear surface of the expansion tube.

New or improved hydrostatic connection