Способ контроля отклонений ширины проводников печатной платы от номинальных значений

Использование: для контроля технологических процессов изготовления печатных плат. Сущность изобретения заключается в том, что способ контроля отклонений ширины проводников от номинальных значений при изготовлении печатной платы содержит расчет волнового сопротивления проводника в виде микрополосковой линии на двусторонней печатной плате при заданных значениях диэлектрической проницаемости и толщины основания платы, толщины слоя металлизации и ширины тестируемого проводника; на тестовой плате с заданными значениями диэлектрической проницаемости и толщины основания платы, толщины слоя металлизации с помощью применяемой производителем технологии изготавливают тестовый образец с тестируемым проводником заданной ширины; с помощью динамического рефлектометра измеряют волновое сопротивление тестируемого проводника; находят разность между значениями расчетного волнового сопротивления тестируемого проводника и измеренного волнового сопротивления проводника на тестовом образце печатной платы; рассчитывают ...

УСИЛИТЕЛЬНАЯ ЛЕНТА И СПОСОБ РЕМОНТА ТРУБОПРОВОДА С НЕЙ, СПОСОБ ОБНАРУЖЕНИЯ УВЕЛИЧЕНИЯ ДИАМЕТРА ПОВРЕЖДЕННОГО УЧАСТКА ТРУБОПРОВОДА

Изобретение относится к области ремонта трубопроводов, используемых для транспортировки текучей среды, такой как нефть. Усилительную ленту (20) для ремонта трубопровода (10) наматывают с натяжением вокруг участка трубопровода, и одновременно на нее наносят смолу с сетчатой структурой, чтобы получить муфту вокруг ремонтируемого участка. Лента содержит по меньшей мере один интегрированный металлический провод. Электрические свойства провода используют для операций, включающих в себя поперечное сшивание смолы, обнаружение участка трубопровода, содержащего муфту, или обнаружение отремонтированных участков трубопровода, диаметр которых увеличился в результате утонения стенки. Способ ремонта поврежденного участка трубопровода (10) включает подачу напряжения на провод, чтобы получить повышение температуры за счет эффекта Джоуля для достижения минимальной температуры, например 10°C, необходимой для начала полимеризации нанесенной на указанную ленту смолы с сетчатой структурой. Техническим результатом ...

СИСТЕМА И УСТРОЙСТВО ДЛЯ ОБНАРУЖЕНИЯ ИНСТРУМЕНТОВ НА КАНАТЕ И СПОСОБ ИХ ОБНАРУЖЕНИЯ

Группа изобретений относится к устройству и способу обнаружения инструментов, прикрепленных к тросу, в надземной части скважины для использования во время капитального ремонта и/или вмешательства в скважину. Предлагается устройство для обнаружения прикрепленного к канату инструмента, движущегося по скважине, причем указанное устройство содержит корпус, ограничивающий центральный канал для приема прикрепленного к канату инструмента и пропускания через него; по меньшей мере один генератор магнитного поля, предназначенный для генерирования магнитного поля, проходящего по меньшей мере частично через центральный канал; по меньшей мере один датчик магнитного поля, предназначенный для обнаружения изменений одного или нескольких свойств магнитного поля, вызванных прикрепленным к канату инструментом, приближающимся к магнитному полю, проходящим через него или удаляющимся от него. Также предложен способ установления местоположения прикрепленного к канату инструмента при его движении по части скважины ...

ИЗМЕРИТЕЛЬ ИЗНОСА КОНТАКТНОГО ПРОВОДА РУЧНОЙ ЭЛЕКТРОННЫЙ

Предложенная полезная модель относится к области контроля состояния проводной контактной сети электрифицированных железных дорог, и более конкретно, к ручным приборам, предназначенным для измерения остаточной высоты и износа контактных проводов электрифицированных железных дорог и городского электротранспорта. Технический результат заключается в снижение массы измерителя износа контактного провода ручного электронного. Технический результат достигается за счет того, что измеритель износа контактного провода ручной электронный содержит корпус, два опорных ролика, блок питания, пульт управления, электронный блок и измерительный блок, включающий в себя блок измерения высоты контактного провода, при этом блок питания соединен с пультом управления, измерительным блоком и электронным блоком, а электронный блок соединен с пультом управления и измерительным блоком, при этом блок измерения высоты контактного провода содержит магнитную измерительную ленту и магнитную считывающую головку. 9 з.п. ф-лы ...

СПОСОБ ИЗМЕРЕНИЯ ДЛИНЫ МЕТАЛЛИЧЕСКОЙ ТРУБЫ

Изобретение относится к измерительной технике и может быть использовано для бесконтактного измерения длины металлических труб. Техническим результатом изобретения является упрощение процесса измерения. Технический результат достигается тем, что в способе измерения длины металлической трубы, при котором контролируемую трубу располагают изолированно над заземленной металлической плоскостью, осуществляют как в отрезке длинной линии, разомкнутом на концах, возбуждение на его первом конце электромагнитных видеосигналов и прием отраженных видеосигналов, в первом такте измерений измеряют суммарное время Δt1 прямого и обратного распространения электромагнитных видеосигналов вдоль отрезка длинной линии, дополнительно, во втором такте измерений, осуществляют в одном из сечений отрезка длинной линии его замыкание накоротко на фиксированной длине от первого разомкнутого конца и измеряют суммарное время Δt2 прямого и обратного распространения электромагнитных видеосигналов вдоль отрезка длинной линии ...

ИЗМЕРИТЕЛЬ ИЗНОСА КОНТАКТНОГО ПРОВОДА РУЧНОЙ ЭЛЕКТРОННЫЙ

Предложенная полезная модель относится к области контроля состояния проводной контактной сети электрифицированных железных дорог, более конкретно к ручным приборам, предназначенным для измерения остаточной высоты и износа контактных проводов электрифицированных железных дорог и городского электротранспорта. Технический результат заключается в расширении функциональных возможностей измерителя износа контактного провода ручного электронного за счёт обеспечения расчёта износа контактного провода непосредственно самим прибором и сохранения в нём результатов измерения износа контактного провода. Технический результат достигается за счёт того, что измеритель износа контактного провода ручной электронный содержит корпус, два опорных ролика, блок питания, пульт управления, электронный блок и измерительный блок, включающий в себя блок измерения высоты контактного провода и блок измерения перемещения, при этом блок питания соединён с пультом управления, измерительным блоком и электронным блоком, ...

УСОВЕРШЕНСТВОВАННАЯ УСИЛИТЕЛЬНАЯ ЛЕНТА ДЛЯ РЕМОНТА ТРУБОПРОВОДА ТРАНСПОРТИРОВКИ ТЕКУЧИХ СРЕД

УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ ДЛИНЫ ПРОТЯЖЕННОГО МЕТАЛЛИЧЕСКОГО ИЗДЕЛИЯ

Изобретение относится к измерительной технике и может быть использовано для бесконтактного измерения длины протяженных металлических изделий, в частности металлических труб как готовых изделий, так и при их производстве. Техническим результатом изобретения является расширение функциональных возможностей устройства вследствие повышения точности измерения длины протяженного металлического изделия. Устройство для измерения длины протяженного металлического изделия содержит металлическую плоскость с размещенным изолированно над ней контролируемым изделием, совокупность которых образует отрезок длинной линии, генератор электромагнитных колебаний фиксированной частоты, соединенный линией связи с одним из концов отрезка длинной линии, включенные в линию связи направленные ответвители для прямой и отраженной электромагнитных волн, выход каждого из которых подсоединен к соответствующему входу фазового детектора, регистратор. При этом для достижения технического результата включены блок для измерения ...

СПОСОБ ИЗМЕРЕНИЯ ТОЛЩИНЫ ТОНКОПЛЕНОЧНЫХ ДИЭЛЕКТРИЧЕСКИХ МАТЕРИАЛОВ

УЗЕЛ РЕМНЯ БЕЗОПАСНОСТИ, ВКЛЮЧАЮЩИЙ ИЗМЕРЕНИЕ РАЗМОТКИ

ИНДУКТИВНЫЙ ИЗМЕРИТЕЛЬНЫЙ ЗОНД И СПОСОБ РАБОТЫ ИНДУКТИВНОГО ИЗМЕРИТЕЛЬНОГО ЗОНДА

Circumference measurement for irregular rotating bodies - using contactless laser scanning and high speed signal evaluation with differentiating and integrating functions

The method and equipment are for measurement of circumference of rotating bodies, in partic. of rotating bodies with non round or irregular peripheries and are designed to produce exact measurement values with high measurement speed. The arc length differential produced for the body rim is integrated over an angle of 2 PI radians. The rim is scanned and electrical signals generated representing radius variations w.r.t. the corresp. angular position variation. These are differentiated and squared, then summed. The square root is then determined and the resulting signal integrated over the circumference. The periphery is scanned without contact using a laser method.

Magnetic length measuring system for absolute position measurement

The system contains at least one magnetic code track (6) on a scale (5) and sensors for scanning the magnetic fields produced above the code track. One binary condition of a code element (1) in the code track is represented through a uniform magnetization, and the other binary condition through a change of the magnetization direction. Magneto-resistive sensors (2) are provided, whose sensor plane is formed through the normal (N) of the scale surface and the measuring direction (x). The output signal of the sensors is approximately given by the equation Ua = U0 * cos(2 * phi ), where phi is the angle between the magnetic field direction and the normal of the scale surface, and U0 is a constant amplitude. A certain amount of successive code elements forms preferably a code word, and two magneto-resistive sensors are preferably available for each code element.

Vorrichtung zur direkten und/oder bewerteten Erfassung und Anzeige einer Messstrecke mittels eines Massstabes mit Schieber

Anordnung zur zweidimensionalen, berührungslosen Positionsbestimmung eines Meßobjektes

Vorrichtung zum Messen von Drehmomenten, insbesondere an umlaufenden Wellen

Kupplungsausrücker mit relativ zum Kolben bewegbaren Magneten zur Positionserfassung des Kolbens

Die Erfindung betrifft einen Kupplungsausrücker (1) für einen Kraftfahrzeugantriebsstrang, mit einem als Trägerteil agierenden Gehäuse (2), relativ zu dem ein hohlzylinderartiger Kolben (3) axial verlagerbar ist, um ein Ausrücklager (4) zu verschieben, wobei zwischen dem Gehäuse (2) und dem Kolben (3) ein Druckraum (5) vorhanden ist, der in Abhängigkeit von seiner Befüllung eine Verschiebung des Kolbens (3) bewirkt, wobei im oder am Gehäuse (2) ein Sensor (6) festgelegt ist, der zur Positionserfassung eines Magneten (7) ausgelegt ist, wobei der Magnet (7) in einer Magnethalterung (8) aufgenommen ist, wobei die Magnethalterung (8) am Kolben (3) derart angebunden ist, dass zwischen dem Kolben (3) und der Magnethalterung (8) eine Relativbewegung in Axialrichtung (A) ausgeschlossen und in Umfangsrichtung (U) ermöglicht ist.

Magnetischer Positionssensor

Vorrichtung (100), die umfasst: – ein permanentmagnetisches Material (111), das sich entlang eines Pfads (181, 191) erstreckt, – einen ersten Winkelmagnetfeldsensor (101, 102), der eingerichtet ist, um mindestens ein erstes Signal (201, 202) auszugeben und der beabstandet zum Material (111) angeordnet ist, – einen zweiten Winkelmagnetfeldsensor (101, 102), der eingerichtet ist, um mindestens ein zweites Signal (201, 202) auszugeben und der beabstandet zum Material (111) und zum ersten Winkelmagnetfeldsensor (101, 102) angeordnet ist, – eine Auswerteeinheit (177), die eingerichtet ist, um basierend auf dem mindestens einen ersten Signal (201, 202) und dem mindestens einen zweiten Signal (201, 202) eine Relativpositionierung (109) des ersten Winkelmagnetfeldsensors (101, 102) und des zweiten Winkelmagnetfeldsensors (101, 102) gegenüber dem Material (111) parallel zu dem Pfad (181, 191) zu bestimmen, wobei die Magnetisierung (112) des Materials (111) eine Periodenlänge (115) aufweist, die ...

Stellungssensor zur kontaktlosen Erfassung bestimmter Positionen einer axial verschiebbaren und um bestimmte Winkel drehbaren Welle

Verfahren zur elektronischen Laengenmessung und Vorrichtung zur Durchfuehrung des Verfahrens

Length or angle measuring device for machine tool

The measuring device has a measuring scale (1) and a relatively movable scanner (2), with a limit position switch provided by the measuring scale and/or its associated carrier, as a magnetically-detected element, detected by a Hall element of the scanner. Pref. the limit switch elements are provided by magnetic strips (5.1, 5.2) defining the opposite ends of the measuring range, with the signal from the Hall element used to cut out the displacement drive for the scanner, to prevent collision between the latter and an adjacent machine part.

Displacement sensor e.g. for stroke of forklift fork

The displacement sensor has a guide unit (20), with an operating element guided in the guide unit against the restoring force of a spiral spring (70). The operating element is simultaneously a carrier (40), for at least one caliper element, which slides on a caliper track arranged at the guide unit, for the caliper of a caliper value, depending on the position of the operating element. The guide unit has the shape of a cylinder provided with a central bore (21), with at least one cylinder casing opening (23), running generally axially to the central bore. Which in the region of the cylindrical casing opening, includes an off centre reception surface (24), running parallel to the longitudinal axis.

Displacement sensor

The sensor (1) has a coil (9) mounted in a housing (2), a core (8) movable w.r.t. housing and a sliding body (5) guided longitudinally within the housing. The sliding body is connected to the core and engages an eccentric journal (19) on a rotatable shaft (16) with a control path (21) under spring force. A control part (22) with the control path is inserted into the sliding body. The axes (17,18) of the sliding body and the shaft intersect each other at right angles. The control path, which is symmetrical to a plane through the axis of the sliding body, is formed with convex curvature towards the eccentric journal.

Positionserfassungsvorrichtung an einem Linearantrieb

VERFAHREN UND VORRICHTUNG ZUR MESSUNG VON SPRUNGLAENGEN AUF EINER SKISPRUNGSCHANZE

DIGITALE ELEKTRISCHE LAENGEN- ODER WINKELMESSEINRICHTUNG MIT EINER SCHALTUNGSANORDNUNG ZUR FEHLERUEBERWACHUNG

Targetvorrichtung für eine induktive Wegmessung eines Geberkolbens

Die Erfindung betrifft eine Targetvorrichtung für eine induktive Wegmessung eines Geberkolbens, wobei die Targetvorrichtung hülsenförmig mit einem Schlitz gebildet und aus einem metallischen Material gefertigt ist, und dazu eingerichtet ist, unter Spannung auf einem Kolbenkörper fixiert zu werden. Mit der hier vorgeschlagenen Targetvorrichtung kann eine sehr kurze Konstruktion eines Geberzylindersystems ausgeführt werden und zugleich eine Massenfertigung ohne zusätzlichen Justieraufwand erreicht werden.

Kapazitiver Abstandssensor

Die Erfindung betrifft einen kapazitiven Abstandssensor (2). Der Abstandssensor (2) umfasst ein Sensorelement (4), mit einer elektrisch leitenden, langgestreckten, flachen Sensorfläche (16), die wiederum eine Anzahl von Löchern (18) enthält. Die Sensorfläche (16) ist von einem elektrisch nichtleitenden Isolierkörper (14) vollständig umschlossen, so dass der Isolierkörper (14) die Randbereiche (22) der Löcher (18) vollständig überdeckt. Das Sensorelement (4) wird insbesondere hergestellt, indem in die Sensorfläche (16) zunächst die Löcher (18) eingebracht werden. In einem darauffolgenden Arbeitsschritt wird die Sensorfläche (16) von dem Isolierkörper (14) vollständig umhüllt, der auch die Löcher (18) der Sensorfläche (16) vollständig ausfüllt.

ELECTRIC-STORAGE-BATTERY-FED MEASURING INSTRUMENTS

... 1392503 Measuring dimensions electrically M POSSATI [trading as APPARECCHI ELETTRONICI MARPOSS] 14 April 1972 [14 April 1971] 17470/72 Heading G1N An electronic battery fed measuring instrument such as a dimension gauge includes an element which is moved by a workpiece when it is placed in the measuring position to permit the battery to feed the instrument, the battery being in open circuit in the absence of the workpiece. The feeler gauge of the instrument is connected to a ferromagnetic element 20 coupling transformer 14 forming part of a transistor 11 oscillator. In the absence of a workpiece element 20 is in the lower position so that the inductance in the collector circuit of the transistor 11 is such that the oscillator does not oscillate and due to the high resistor 12 the battery discharge current is very small. When the workpiece is in the measuring position the element 20 moves upwards by an amount proportional to the dimension of the workpiece and the oscillator commences to ...

Method and system for determining the location of a fiber optic channel along the length of a fiber optic cable

Device for detecting the displacement of valve stem movement in an electropneumatic positioner

Measuring load on a spring

The displacement of a spring 6 or load applied to spring 6 is sensed by an electric circuit 7 measuring a change in inductance L. The electric circuit 7 comprises a Colpitts oscillator circuit. Pulses produced at a resonant frequency are counted as an indication of the spring's 6 inductance (fig 8). Spring 6 can comprise a helical, coaxial double (21, 22, fig. 5), flat or coach spring (28, 29, fig. 6). Embodiments of the invention include sensing the weight of someone on a trampoline (fig.8) or the height a person jumps (fig. 7), the load on a spring balance (50, fig, 13) or strain gauge, the direction a platform (54, fig. 15) or joystick (62, fig 16) moves, the load a crane lifts (fig. 14) or the actions of a punch ball (34, fig. 9) or punch bag (37, fig. 9).

Pressure-sensitive variable resistor with slidably moving member

A variable resistor (10) comprises: a resistive material (12) e.g. of conductive plastics on a first member (14) e.g. a printed circuit board; at least one membranous layer (e.g. polycarbonate) (16) carrying a conductive area 32 and enclosing the resistive material (12); and a slidably movable member (22) having a contact member (22) which exerts a force on the membranous layer (16) to contact a portion of the conductive area 32 with The resistive material 12. The resistor is used in a linear fader for controlling recording levels. ...

Smart displacement sensor

A measuring head (1) measures displacement by variation in frequency of an oscillator due to movement of a core in a coil. The signal from the oscillator is used to gate a high frequency crystal clock (10) into a counter (12). The count is representative of the change in frequency of the oscillator and thus the displacement to be measured. The count is compared by a microprocessor (14) with a look-up table (16) stored in the memory during initial calibration. The operating and processing electronics connected to the sensor head (1) are mounted in a connector which can be directly coupled to connectors of other sensors to form a bus connecting multiple sensors to a host.

Detecting valve stem displacement

A device (1) for detecting the displacement of the valve stem movement in electropneumatic positioners, wherein a high-frequency oscillation is induced in an inductively operating sensor (1) within an LC resonant circuit to produce a high-frequency electromagnetic alternating field, the high-frequency oscillation is damped as a function of the displacement via an electrically conductive body (5), which is also moved by the valve stem (7), and the oscillator signal is demodulated and delivered unamplified to a microcomputer to evaluate the displacement-dependent oscillation amplitude damping. The sensor is orientated parallel to the direction of the valve stem stroke.

Creep determination technique

Method of measuring length and apparatus therefor wherein secondary output can be multiplied

In a length measuring apparatus, a measurement probe includes a core and is movable in an axial direction of the probe. First to third coils are arranged in an order in a moving area of the core in accordance with the movement of the probe. In the B-phase, the first and second coils are primary and the second and third coils are secondary. In the A-phase, the second and third coils are primary and the first and second coils are secondary. CPU first sets a switch in the B-phase and then in the A-phase. A moving amount of the core is calculated from secondary voltage data in both the B-phase and the A-phase.

Position sensor

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

Probe with stylus adjustment

A probe assembly includes an adapter 16 detachably connected to a probe housing 14 having a stylus 12 projecting from one end thereof for contacting an object. The end face of the adapter 16 has a well 52 of a given radial dimension with the opposite end 60 of the housing having a member projecting therefrom for insertion into the well. Radially adjustable pins such as 62 and spring pins such as 68 contact sides of the member with the housing being radially shiftable to position the stylus at a desired location relative to a major axis of the adapter. The invention also discloses a method of adjusting the tilt of the stylus by using a caliper tool, Figs. 5-10 (not shown) to rotate two variable thickness spacer washers 94, 96 relative to one another. ...

Rail head profiling device

A rail track measuring device may use a plurality of Hall Effect sensors 2 arranged in horizontal and vertical axes around a rail 3. The arrays act to determine the distance between themselves and the rail by measuring the corresponding magnetic flux density. Due to the curved profile of the rail 3 the values differ, they are sent to a processor (not shown) and software plots the position of the measured values [Fig 3, 1 and 3]. A profile of a train wheel [Figure 3, 2] may be superimposed on the plotted value [Figure 3, 3] to determine contact points between the rail and wheel. It is thus possible to determine if safety warnings should be issued relating to rail wear. Rail head and side wear can also be determined.

Interference detection and mitigation in inductive sensor applications and dynamic adaptation based on real-time noise detection

A resistive-inductive-capacitive sensor is driven at a driving frequency and a measurement of phase and amplitude is used to determine the presence of external interference to the sensor. A noise detection circuit may detect the external interference based on the profile of at least one of the phase and the amplitude versus frequency. The rate of change of the phase or amplitude being outside an expected range may indicate noise. An operating parameter of the sensor, such as the amplitude or frequency of the driving signal, the resonant frequency or capacitance of the sensor, a filter corner frequency or conversion time, or noise floor, may be modified to compensate for the interference. The noise may be measured in a noise measurement mode of increased sensitivity. The magnitude of the noise may also be estimated. The sensor may be used to detect force applied to a mechanical member 105 used as an alternative to a mechanical switch in e.g. a mobile device.

NON-CONTACT INDUCTIVE DISTANCE MEASURING SYSTEM

Means for determining the travel of a piston

An arrangement for determining and measuring the position or travel of a piston in a cylinder, e.g., suspension component such as a vibration damper, gas-spring or hydropneumatic suspension, uses a structure having no moving electrical contacts, nor any movable electrical leads. The arrangement measures a variable impedance, e.g., a capacitance which is created by first and second electrodes formed within the suspension component and is distinguished in that the electrodes are fixed and are immovable with respect to each other. Capacitance variation is achieved, for example, by allowing a dielectric medium, such as a ceramic or epoxy resin cylinder to enter between two electrodes, the extent of the entry of the dielectric medium being made to be proportional to the relative travel of the piston in the cylinder. In a variation, an additional electrode forming a fixed reference capacitance with the first electrode is provided. The fixed reference capacitance is used together with the measured ...

Displacement sensor

MEASURING THE LINEAR DISPLACEMENT OF A MOVABLE MEMBER

... 1412638 Measuring translation electrically UNITED KINGDOM ATOMIC ENERGY AUTHORITY 2 Aug 1973 [12 Sept 1972] 42379/72 Heading G1N Apparatus for controlling the translation of a movable member 4, 5 restrained from rotating comprises a rotatable member 2 having a screwthreaded extension 3 engaging a tapped portion 4 of the movable member; an electrical impulse generator 8, 9, 10 comprising a toothed wheel coupled to the member 2 and arranged for actuating a switch to produce pulses as a measure of the displacement of the movable member 4, 5; means 15 for counting and displaying the number of pulses; and means 11, 12 for sensing the direction of rotation of the member 2 whereby the pulses are added to or subtracted from the display. A toothed wheel 8 coupled to the rotatable member 2 actuates the lever 9 of a switch 10 connected to an electrical supply. The impulses so produced are routed to the 'add' or 'subtract' solenoid of the counter by a switch 12 actuated by a lever 11 coupled to the ...

METHOD AND APPARATUS FOR MEASURING ARTICLES

... 1438109 Measuring bearings electrically ASSOCIATED ENG Ltd 27 Sept 1973 [28 Sept 1972] 44916/72 Headings G1M and GIN Apparatus for measuring the peripheral length y of a shell half bearing 10 comprises a flat plate 11, a plurality of radially disposed transducers 14, each having a probe 15 which bears against a spring foot 16 to press it against the bearing, and each producing an electrical signal representing displacement of the probe 15. The signals are combined according to an empirical low of the general form y=a o Πa, x 1 Πa n x n Πd m x n Πa p x n x m , where x is the radius of the bearing as measured by the transducers, and the coefficients a are determined from measurements taken on a setting-up batch of the bearing shells including measurements of y. A computer is then programmed to use this empirical relationship and the signals from the transducers 14 to determine the peripheral length y for each of a plurality of shells slid along the plate in the direction of the arrow.

TEMPERATURE COMPENSATING CIRCUIT FOR LVDT AND CONTROL SYSTEM

ARRANGEMENT FOR THE DETECTION OF DISTANCE BETWEEN BODIES

... 1346388 Electro-physical measurementdistance KRAUSS-MAFFEI A G 27 Sept 1972 [25 Nov 1971] 44636/72 Heading G1N [Also in Division G3] The distance between an electromagnetically supported and guided hover vehicle and its U- shaped anchor rail, is measured by proximity detecting coils on the vehicle adjacent the top and side of the rails. The coils 2, 3, are tuned to resonance with the energizing source 9 to which they are connected through feed resistors 8. The presence of the rail detunes the coils 2, 3, to an extent determined by the distance between the rail and coils and the voltage drop due to resistors 8 is measured by circuits 10-12 and is usedto regulate the exciter currents of the hover magnets.

POSITION SENSING CIRCUIT

... 1276997 Measuring position electrically BURDICK CORP 19 April 1971 [12 Feb 1970] 21306/71 Heading G1N Apparatus for providing an electrical signal related to the position of an electrically conductive member 12, such as a galvanometer pointer, comprises an elongate distributed resistance 20 capacitively coupled to said conductive member, and an oscillator 40 connected to member 12 and, via rectifiers 42, 44, to resistance 20. The natural self-capacitance 52 may provide smoothing for the output, taken from 50. The member 12 may be earthed, Fig. 4 (not shown) and a filter (66) provided to smooth the output. A simple circuit with half-wave rectification is described with reference to Fig.2 (not shown).

Electrical apparatus for measuring dimensions

... 591,490. Electric dimension gauges. MALSALLEZ, P. April 1, 1942, No. 4360. Convention date, Jan. 24, 1941. [Class 40 (i)] [Also in Group XXXVI] Apparatus for measuring a dimension comprises a thermionic valve oscillator the frequency of which varies in response to variations in the capacitance, inductance, or resistance thereof caused by the dimension to be measured, and an oscillatory circuit having a fixed frequency including a thermionic detector valve, the fixed frequency circuit being inductively coupled with the variable frequency circuit and the variations in the anode current of the detector valve being used as a measurement of the dimensional variations of the object. An oscillatory circuit is formed by a fixed condenser c, Fig. 1, and inductance s, a condenser c1 the movement of the plates of which is controlled by the dimension to be measured, and a correcting or adjusting condenser c2. Oscillations. are maintained by a triode o which is inductively coupled by a transformer t ...

WEGMESSEINRICHTUNG

LAENGENMESSEINRICHTUNG

The scanning unit which is movable along the scale member comprises signal-generating means, which are accommodated in one or more covering hoods. Each covering hood has an annular boundary surface facing the scale member and is provided at said boundary surface with an annular seal which consists of elastomeric material and is in sealing contact with the scale member under initial compressive stress throughout the peripheral extent of the boundary surface. The covering hood and the scale member thus define between them a measuring chamber in which the atmospheric conditions are favorable for an accurate measurement. As the scanning unit is moved along the scale member, the measuring chamber will always be disposed at a portion of the scale member in which the surface of the scale member has just been cleaned by the sliding contact between the annular seal and the scale member.

MEASURING DEVICE FOR SEVERAL TUBING SECTIONS

VERFAHREN ZUM AUSMESSEN DER ABSTANDE VERSCHIEDENER PUNKTE BEI EINER BILDANZEIGE AUF EINEM BILDSCHIRM, INSBESONDERE BEI DER BILDDARSTELLUNG VON SCHNITTBILDERN NACH DEM ULTRASCHALL-SCHNITTBILDVERFAHREN, UND GERAT ZUR DURCHFUHRUNG DIESES VERFAHRENS

LINEARES, INKREMENTALES MESSSYSTEM

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

Schalungssystem, Ankervorrichtung, Ankerstab, Verwendung eines Ankerstabs und Verfahren

Die Erfindung betrifft ein Schalungssystem (1) aufweisend wenigstens eine erste Schalungseinrichtung (2) und eine zweite Schalungseinrichtung (3), zwischen denen ein Verfüllraum (4) zur Aufnahme eines verfestigbaren Baustoffs ausgebildet ist. Ferner weist das Schalungssystem (1) wenigstens eine Ankervorrichtung (6) mit einem Ankerstab (5) auf, um die erste Schalungseinrichtung (2) und die zweite Schalungseinrichtung (3) miteinander zu verspannen. Vorgesehen ist eine Messeinrichtung (13), um eine durch das Verfüllen des verfestigbaren Baustoffs in den Verfüllraum (4) bedingte Längenänderung und/oder eine Querschnittsänderung des Ankerstabs (5) zu erfassen.

SWITCHING CONFIGURATION FOR THE DIGITAL PROCESSING OF POLYPHASE PULSE RATES OF A PULSE GENERATOR

LENGTH MEASURING SYSTEM FOR MACHINE TOOLS

FOR PROCEDURES FOR MEASURING THE DISTANCE OF DIFFERENT POINTS WITH A PICTURE ANNOUNCEMENT ON A SCREEN, IN PARTICULAR DURING THE IMAGE REPRESENTATION OF SECTIONAL VIEWS IN THE ULTRASONIC SECTIONAL VIEW PROCEDURE, AND TURN OUT TO DURCHFUHRUNG THIS PROCEDURE

DEVICE FOR LOCALIZATION ALONG A GIVEN MEASURING SECTION

WEGMESSEINRICHTUNG FUER EIN IN EINEM GEHAEUSE BEWEGBARES BAUELEMENT

POSITIONSMESSEINRICHTUNG MIT RANDKOMPENSATION

The unit (10) has a measuring scale (20) at which measuring marks (21) are periodically arranged along a measuring direction (11). A pair of receiver coils (E11) is arranged within a transmitter coil in the measuring direction. Another pair of receiver coils (E13) is arranged within another transmitter coil in the measuring direction, where the pairs of coils are switched in a series manner. Winding directions of the pairs of coils are equal to or opposite to the transmitter coils, where distance between the pairs of coils is an integral multiple of a pitch distance (lambda).

Verfahren zum Messen und Anpassen der Wandstärke eines Rohres

Verfahren zum Messen und Anpassen der Wandstärke (W) eines durch ein Schleudergießverfahren hergestellten Rohres (1) während einer Serienfertigung, wobei die Wandstärke (W) durch eine unmittelbar an einer Schleudervorrichtung (2) angeordnete Messvorrichtung (3) gemessen wird.

Method for measuring and adjusting the wall thickness of a pipe

Verfahren zum Messen und Anpassen der Wandstärke (W) eines durch ein Schleudergießverfahren hergestellten Rohres(1) während einer Serienfertigung, wobei die Wandstärke (W) durch eine unmittelbar an einer Schleudervorrichtung (2) angeordnete, radiometrische Messvorrichtung (3) gemessen wird.

LAENGENMESSVORRICHTUNG.

MESSKLUPPE.

DEVICE FOR THE MEASUREMENT OF FEED MOTIONS.

AUTOMATIC CONTROL MACHINE FUER CALIBRATED THICKNESS STANDARDS.

LINEAR, INCREMENTAL MEASURING SYSTEM

DIGITAL ELECTRICAL LAENGEN OR ANGLE MEASURING INSTRUMENT WITH A SWITCHING CONFIGURATION FOR ERROR CONTROL.

DIGITAL ELECTRICAL LENGTHENING OR WINKELMESSSYSTEM.

LAENGENMESSEINRICHTUNG

POSITION SENSOR WITH HALLSONDE

LINEAR POSITION SENSOR.

Inductive system for measuring the length of a shock absorber

System and method for determining a compensation factor suitable for correcting an attenuated signal in a conductor

METHOD AND APPARATUS FOR DETERMINING THE THICKNESS OF A CHROMIUM DEPLETED ZONE OF A SURFACE REGION OF A STEEL MEMBER

Improved reinforcement strip for repairing fluid transport pipes

A reinforcement strip (20) suitable for repairing a fluid transport pipe (10) during which the strip is wound, under traction, around the portion of the pipe where the repair needs to be made at the same time that a crosslinking resin is applied to the strip in such a way as to form a sleeve around the portion to be repaired. The reinforcement strip comprises at least one integrated metal wire, the electrical properties of the wire being used for operations comprising crosslinking the resin, detecting the portion of the pipe that comprises the sleeve or detecting repaired portions of the pipe that have increased in diameter due to a thinning of the wall of the pipe.

External position indicator of ram blowout preventor

Method and blowout preventer for sealing a well. The blowout preventer includes a body having first (34) and second (36) chambers, the first chamber (34) extending substantially perpendicular to and intersecting the second chamber (36); a ram block (80) configured to move within the first chamber (34) to seal a first region of the second chamber (36) from a second region of the second chamber (36); a rod (78) connected to the ram block (80) and configured to extend along the first chamber (34); a piston (76) connected to the rod (78) and configured to move along and within the first chamber (34); a bonnet (60) configured to receive the piston (76), the bonnet (60) being detachably attached to the body; and an indicator device (62) partially mounted outside the bonnet (60) and configured to indicate a physical position of the ram block (80) within the body. c4 Nu ! Mcilo ...

SOMATIC GROWTH MEASUREMENT

PORTABLE HAND MEASURING DEVICE

A method and apparatus for measuring linear displacements

Arrangement for measuring the position of a feed beam in a rock drilling apparatus and/or measuring the position of a rock drill

FEELER GAUGE FOR MEASURING THE INTERNAL GEOMETRY OF CONTINUOUS CASTING MOULD

END SENSOR

S11-50147M/YO/88 An end sensor for detecting the end of a thin film stuck to a base plate such as may be used in a printed circuit board manufacturing apparatus. The sensor includes an electroconductive contact member, preferably shaped as a rod or plate, having a tip oriented in a direction at an acute angle to a direction of conveyance of said base plate so as to contact a surface of said base plate and a surface of the thin film. The sensor may be either of the electrostatic capacity type or of the electrical resistance type.

METHOD OF MAKING COORDINATE MEASUREMENTS

... 380-79-0090 METHOD OF MAKING COORDINATE MEASUREMENTS A method of making measurements on a machine having a movable probe for measuring a part in which a present location of the probe is maintained and a past location (e.g., a part measurement) of the probe is also maintained (stored) and advantageously displayed. The measuring apparatus includes two sets of storage members, with the present position information of the probe stored in one set. The present probe position information is transferred to the other storage members in response to a control signal. The control signal, such as an electrical signal indicating contact with an object, causes measurements to be transferred from the one set of storage members to the second set of storage members and, advantageously, the transfer of further information to the second storage members may be locked out for a predetermined time or until an event occurs (such as a resetting signal). The first set of storage members continue to maintain present ...

SIZE MEASUREMENT DEVICE AND SIZE MEASUREMENT SYSTEM

The purpose of the present invention is to provide a size measurement device and a size measurement system which can be easily handled by a user with no professional measuring technique. By the user wearing this size measurement device (10), the size measurement device specifies the size and the shape of a user's body parts. The size measurement device has a measurement sensor which measures the amount of physical change on the basis of change in electrical characteristics, and the measurement sensor measures the amount of stretch of a base material caused by the user's body shape. The size measurement system comprises: a size measurement device (10); a user terminal (20) which is operated by the user whose body is to be measured; and a management server (30) which manages information about the size and shape of apparel products and, on the basis of the sensor measurement information, provides user size information, which is information about the user's size, and product search result information ...

WEAR INDICATION DEVICES, AND RELATED ASSEMBLIES AND METHODS

A wear indication device comprises an outer body exhibiting at least one opening extending at least partially therethrough, and at least one sensor within the at least one opening. The at least one sensor comprises at least one probe, and at least one electronic device operatively associated with the at least one probe. The at least one electronic device comprises at least one power supply and at least one output device. An assembly, and a method of detecting wear to a component of an assembly are also described.

METHOD FOR MEASURING A LENGTH AND ELECTRONIC SLIDE CALIPER

A b s t r a c t A method and an electronic slide caliper serve for measuring a length. The slide caliper comprises a rule and a slide which is arranged on the said rule for longitudinal displacement and which is provided with two sensors which are offset relative to each other in the longitudinal direction in such a way that the zero passages of the signals generated by the sensors will not coincide. In order to be able to measure the lengths even in the presence of considerable drifts, the zero passages (ND) of the signals are determined by determining first maximum values (MX) and minimum values (MN) of the signal values (U) and deriving thereafter the zero passages (ND) as arithmetic mean value. By taking the average of a larger number of zero passages one then determines the respective zero level (UN) (Fig. 8).

COMPACT HEAD, SIGNAL ENHANCING MAGNETOSTRICTIVE TRANSDUCER

A displacement transducer (10) utilizes a torsional strain waveguide (20) having a magnetic member (17) that is adjustably positioned along the length of the waveguide, when an electrical current pulse is passed along the waveguide (20) and reaches the magnet (17) a torsional strain wave is created in the waveguide (20). The torsional strain wave will be reflected back toward a mounting end of the waveguide (20) where a converter or sensor (32) is positioned to sense the strain wave signal and convert it to an electrical output signal. The strain wave signals have signal lobes of a time period. A waveguide mounting block (25) supports the waveguide (20) at the mounting end and provides a reflection point for the torsional strain waves. The waveguide mounting block (25) is on an opposite side of the signal sensor (32) from the magnet (17). The mounting block (25) is precisely positioned a distance from the signal sensor (32) that is equal to distance traveled by the torsional strain wave ...

MAGNETORESISTIVE LINEAR DISPLACEMENT SENSOR, ANGULAR DISPLACEMENT SENSOR, AND VARIABLE RESISTOR

A giant magnetoresistance displacement sensor includes at least one layered structure. This layered structure includes a harder magnetic (ferromagnetic or antiferromagnetic) layer (34) having a fixed magnetic state, a second, softer magnetic layer (32) and a metal layer (33) interposed between and contacting these two layers (32, 34) to prevent exchange coupling between the two layers. The sensor also includes means (56, 58) for inducing a domain wall (37) at a measurand position, between regions (35, 36) of nonaligned magnetic fields in thc softer magnetic layer (32), and means (50) for measuring electrical resistance between points on opposite sides of the structure. In operation, the means (56, 58) for inducing a domain wall, typically one or more indexing magnets (56, 58), is positioned relative to the giant magnetoresistance strip. The resistance across the strip is measured, and from this resistance measurement the position of the domain wall is determined. The present invention is ...

CASING JOINT DETECTOR

A borehole instrument that detects the joints of successive axial lengths of magnetic material enclosing a borehole while traveling along the inside of the enclosure by detecting anomalous magnetic fields indicative of the enclosure's joints. One embodiment of the invention is to measure the distance the instrument travels along the inside of the borehole enclosed or cased with a magnetic material by traversing along a borehole while measuring one or more magnetic field parameters interior to the enclosure of the magnetic casing, processing the measured parameters to detect anomalous static magnetic fields that are indicative of the joints of the casing lengths; determining the distance traveled along the borehole at each joint by summing the known lengths of the casing; correlating the discrete distances computed at the casing joints with a primary distance measuring device that is higher resolution but lower in accuracy, and calibrating the primary device using the discrete distances ...

Längenmessvorrichtung mit auf verschiedene Werte einstellbarer Toleranz.

Installation électrique de contrôle d'alignement.

Appareil pour la mesure des déplacements relatifs de deux organes en fonction des variations de capacité électrique.

Электронный прибор для измерения толщины кожной складки

Полезная модель относится к области ветеринарной медицины, к средствам выявления инфекционных болезней животных, используется для определения аллергической реакции животных на туберкулез. Прибор необходим для профилактики болезней и обеспечения здорового поголовья животных. Может также использоваться как калипер - прибор для измерения толщины кожной складки (уровня подкожного жира). Существенное отличие предлагаемого технического решения заключается в конструкции электронного преобразователя, в которой использовано в качестве измерительного элемента переменное сопротивление с продольным перемещением подвижного контакта (ползунка). Использование такого элемента в качестве датчика линейных размеров позволяет сделать более простой конструкцию измерительного узла для измерения толщины кожной складки и использовать на 100% всю рабочую область переменного сопротивления в качестве чувствительного элемента. Кроме того, использование электронного преобразователя с пружиной линейного растяжения позволяет проводить измерение толщины кожной складки при постоянном контролируемом сжатии. Предлагаемые технические решения, реализованные в электронном приборе, обеспечивают надежное и быстрое проведение туберкулиновой пробы с достаточно высоким разрешением и точностью. Прибор удобен в работе, успешно прошел апробацию в животноводческих хозяйствах и подразделениях ветеринарной службы Иркутской, Новосибирской и Калужской областей. Позволяет проводить туберкулиновую пробу большого количества животных в более комфортных условиях с сокращением затрачиваемого времени на ее проведение в 2-2,5 раза, 2 с.п. ф-лы, 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 208 781 U1 (51) МПК A61B 5/00 (2006.01) G01B 7/02 (2006.01) A61B 5/103 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК A61B 5/00 (2021.08); G01B 7/02 (2021.08); A61B 5/103 (2021.08) (21)(22) Заявка: 2021121058, 15.07.2021 (24) Дата начала отсчета срока действия патента: Дата ...

Responsive structural elements

A responsive structural element including an elongate member having a first end and second end and defining a cross-section is provided. The structural element further includes a sensor, secured to the elongate member, for detecting at least one pre-selected indicator. Advantageously, the elongate member is responsive to the pre-selected indicator.

CONDUCTOR LENGTH MEASUREMENT DEVICE AND CONDUCTOR LENGTH MEASUREMENT METHOD

Probes of a conductor length measurement device are connected to piping, and an output voltage is applied to the piping through the probes. A frequency spectrum curve is subsequently calculated by subjecting a voltage signal to FFT. Resonant frequencies of the piping are then determined from this frequency spectrum curve, and the total length of the piping is calculated on the basis of the resonant frequencies. The total length of the piping can therefore be easily measured without the need to install, for example, any measurement instruments at branch terminals. 1. A conductor length measurement device , comprising:a measurement unit for measuring frequency characteristics of a coupled conductor by impressing a voltage to the conductor; anda computation unit for specifying resonant frequencies of the conductor from the frequency characteristics, and computing the total length of the conductor based on the resonant frequencies.2. The conductor length measurement device according to claim 1 , wherein the measurement unit has a voltage impressing unit for impressing an alternating-current voltage to the conductor while causing the frequency to change.3. The conductor length measurement device according to claim 1 , wherein the measurement unit has a voltage impressing unit for impressing a step voltage to the conductor.4. The conductor length measurement device according to claim 1 , wherein the measurement unit measures the frequencies characteristics of a voltage signal corresponding to the potential difference across the two ends of a resistor claim 1 , when a voltage is impressed to the resistor and the conductor connected in series.5. The conductor length measurement device according to claim 4 , wherein the measurement unit executes an FFT process on the voltage signal.6. The conductor length measurement device according to claim 1 , wherein the computation unit computes the total length of the conductor by making computations using the resonant frequencies ...

Sensor and inspection system deploying an optical conduit

Embodiments of an inspection system comprise a conduit that can transmit light between a sensor and a processing component. In one embodiment, the sensor comprises an element that generates an electromagnetic field in response to an input from the processing component. The input comprises a light signal that traverses the conduit to the sensor. The sensor converts the light signal to an electrical signal to operate the element. In one example, the sensor generates a plurality of light signals, which also traverse the conduit to the diagnostic component where the lights signals are processed to determine, in one example, proximity of an object to the sensor.

DETECTION OF CHARGING CABLE

A method is provided for detecting a state of a connection between an electrically driven motor vehicle () and a corresponding charging station. The motor vehicle () has a control pilot (CP) function with a vehicle-side control pilot (CP) line (). The method includes using a power line communication (PLC) chip () of the motor vehicle () to measure the length of a control pilot line between the motor vehicle and the charging station. 1. A method for detecting a state of a connection between a charging station and an electrically driven motor vehicle that has a power line communication chip and a vehicle-side control pilot line , the method comprising: plugging a power line of the charging station into the motor vehicle to connect the vehicle-side control pilot line to a control pilot line of the charging station; and using the power line communication chip of the motor vehicle to measure a length of the control pilot line between the motor vehicle and the charging station.2. The method of claim 1 , wherein the step of using the power line communication chip of the motor vehicle to measure the length of the control pilot line between the motor vehicle and the charging station comprises measuring the length of the control pilot line between the motor vehicle and the charging station by at least one of signal attenuation claim 1 , signal reflection and signal transit time.3. The method of claim 2 , wherein the step of using the power line communication chip of the motor vehicle to measure the length of the control pilot line between the motor vehicle and the charging station comprises transmitting a signal from the PLC chip along the CP line between the motor vehicle and the charging station and receiving the signal reflected at the end of the CP line between the motor vehicle and the charging station and run back to the PLC chip claim 2 , wherein the length of the distance that the signal travels is determined based on the signal transit time.4. The method of claim 3 , ...

CAPACITIVE DISTANCE SENSOR

A capacitive distance sensor is provided. The distance sensor includes a sensor element having an electrically conductive, elongated, flat sensor area which in turn contains a number of holes. The sensor area is completely surrounded by an electrically non-conductive insulating body, with the result that the insulating body completely covers the edge regions of the holes. The sensor element is produced, in particular, by first of all making the holes in the sensor area. In a subsequent step, the sensor area is completely encased by the insulating body which also completely fills the holes in the sensor area. 1. A capacitive distance sensor comprising:a sensor element that comprises an electrically conductive, elongated, flat sensor surface,a plurality of holes formed in the sensor surface; andan electrically nonconductive insulating body completely enclosing the sensor surface such that the insulating body completely covers edge regions of the holes.2. The capacitive distance sensor as claimed in claim 1 , wherein the holes are configured as elongated holes and wherein comparatively long axes of the elongated holes extend in a longitudinal direction of the sensor surface.3. The capacitive distance sensor as claimed in claim 1 , wherein the sensor element is flexible.4. The capacitive distance sensor as claimed in claim 1 , wherein the sensor surface is composed of copper.5. The capacitive distance sensor as claimed in claim 1 , wherein at least a portion of the insulating body is composed of PVC.6. The capacitive distance sensor as claimed in claim 1 , wherein the insulating body contains a plurality of cutouts corresponding to the plurality holes claim 1 , and wherein each cutout extends within one of the holes.7. The capacitive distance sensor as claimed in claim 6 , wherein a cross-sectional area of each cutout has substantially a same shape as that of the respective corresponding hole through which the cutout extends.8. A method for manufacturing a sensor ...

APPARATUS AND METHOD FOR CALCULATING LENGTH OF CARBON GROUNDING ELECTRODE MODULE BASED ON TWO-LAYERED DISTRIBUTED CONSTANT CIRCUIT

The present invention relates to an apparatus and method for calculating a length of a carbon grounding electrode module, which calculates a grounding electrode module length with the smallest grounding impedance variation depending on frequency variation, with respect to the grounding electrode module having a coaxial structure and being filled therein with a carbon-containing filler, wherein the present invention comprises: configuring two distributed constant circuits into two layers to configure a grounding electrode circuit; receiving the resistivity and relative dielectric constant of ground, the resistivity and relative dielectric constant of the filler, and the inside and outside diameters of the grounding electrode module, as dummy variables; selecting a plurality of frequencies within a frequency variation range; simulating a grounding electrode circuit with the dummy variables with respect to each selected frequency to calculate grounding impedances corresponding to lengths of a grounding electrode; and obtaining the grounding electrode length that is the minimum difference between the grounding impedances of respective frequencies. Through this, a grounding electrode module is implemented in which the variation of a grounding impedance is small even during frequency variations, thereby making it possible to develop a grounding system having a stable performance even with high-frequency fault currents, such as stroke currents or the like. 1. An apparatus for calculating a length of a carbon grounding electrode module , which has a coaxial structure and is filled with a carbon-containing filler , at which the variation of grounding impedance depending on frequency variation is minimized , the apparatus comprising:a circuit configuration unit which configures a two-layered grounding electrode circuit with two distributed constant circuits;a parameter input unit which receives resistivity and relative dielectric constant of ground, resistivity and relative ...

METHOD FOR OPERATING A CAPACITIVE POSITION SENSOR AND CAPACITIVE POSITION SENSOR

A method for operating a capacitive position sensor includes providing excitation signals driving each conductive element. The excitation signals are periodic in 2π, with each set of conductive elements being provided with n different excitation signals. The different excitation signals differ in phase, wherein in a functionality check mode, the excitation signal that in a measurement mode is applied to one of the conductive elements in the functionality check mode is applied to a different one of the conductive elements. The different conductive element is the k-th conductive element counted from the one of the conductive elements, with k being an integer of 1 to n−1 and this shift of excitation signals is applied to all conductive elements. The capacitive position sensor includes a stator having a transmitter with N sets of conductive elements, each set having n conductive elements formed in a linear or circular arrangement thereon. 1. Method for operating a capacitive position sensor , the capacitive position sensor comprisinga stator, the stator comprising a transmitter and a receiver, the transmitter comprising N sets of conductive elements, each set comprising n conductive elements, the conductive elements of the transmitter formed in a linear or circular arrangement thereon,the receiver comprising a conductive plate formed thereon,a rotor, the rotor comprising a linear or circumferential modulated geometry, the stator and the rotor being arranged parallel to each other and being rotatable independently, the method comprising the step of providing each conductive element with an excitation signal, the excitation signals being periodic in 2π, each set of conductive elements being provided with n different excitation signals, the different excitation signals differing in phase, characterized in that in a functionality check mode the excitation signal that in a measurement mode is applied to one of the conductive elements in the functionality check mode is ...

Proximity Sensor and Method For Determining The Proximity To An Electrically Conductive Body

The invention relates to a proximity sensor and a method for determining the proximity to an electrically conductive body. By means of a transmitting arrangement, to this end an alternating magnetic field is transmitted at a selected frequency an alternating magnetic field registered by a receiving arrangement. Moreover, frequencies of the registered alternating magnetic field, which are outside a predefined frequency band comprising the selected frequency and have an amplitude value above a predefined threshold value, are detected by means of a detection means. In a control logic, by means of a blocking circuit, frequencies of a predefined frequency band comprising the detected frequency or a plurality of predefined frequency bands comprising in each case one of the detected frequencies, are defined as blocked frequencies. Moreover, a frequency following the respective selected frequency and different from the selected frequency and the blocked frequencies, denoted hereinafter as the following frequency of the respectively selected frequency, is defined in a selection controller. By means of a time control of the control logic, the following frequency of a selected frequency is continuously selected as a newly selected frequency for a new time window following immediately after or chronologically spaced apart from the selected time window. 1. A proximity sensor for determining the proximity to an electrically conductive body , said sensor comprising:a transmitting arrangement structured and operable to transmit a transmitted alternating magnetic field at a selected frequency,a receiving arrangement structured and operable to register a registered alternating magnetic field,a detection means structured and operable to detect one or more frequencies of the registered alternating magnetic field, which are outside a predefined frequency band having the selected frequency and have an amplitude value above a predefined threshold; and a blocking circuit structured and ...

Techniques for calibrating a linear position sensor

Techniques are described for sensing a position of an object located within an enclosure over a position range. The techniques include generating an expected output signal of each of a plurality of magnetic field sensors disposed along an outer surface of the enclosure, receiving actual output signals from the sensors, wherein each actual output signal indicates a relative proximity of a magnetic target coupled to the object to the corresponding sensor. The techniques further include superimposing the expected output signal over the actual output signals, and iteratively shifting the expected output signal over position relative to the actual output signals and comparing the shifted expected output signal to the actual output signals, until the expected output signal compared to the actual output signals corresponds to a substantially minimized error parameter. The position of the object may then be determined based at least in part on the shifted expected output signal.

PIPING LENGTH MEASURING SYSTEM AND PIPING LENGTH CALCULATING APARATUS

A frequency characteristics measurer is disposed in the vicinity of an end of refrigerant piping, the end of which is connected to an outdoor unit, that connects the outdoor unit and an indoor unit of an air conditioner, and measures frequency characteristics of the refrigerant piping. A filter is attached at a position between the outdoor unit and a position where a terminal of the frequency characteristics measurer is connected, so as to wrap the refrigerant piping. A piping length calculator is connected to the frequency characteristics measurer via an interface cable, and acquires, via the interface cable, frequency characteristics measured by means of the frequency characteristics measurer. The piping length calculator extracts a lowest anti-resonant frequency from the acquired frequency characteristics, and calculates the length of the refrigerant piping on the basis of the extracted lowest anti-resonant frequency. 1. A piping length measuring system , comprising:a frequency characteristics measurer, disposed in the vicinity of one end of refrigerant piping connecting an outdoor unit and an indoor unit of an air conditioner, that measures frequency characteristics of the refrigerant piping;a filter, attached between a measuring site on the refrigerant piping measured by the frequency characteristics measurer and the outdoor unit or the indoor unit nearest to the measuring site, that prevents a test signal from flowing into the outdoor unit or the indoor unit during the measuring; anda piping length calculator that extracts a lowest anti-resonant frequency from the frequency characteristics measured by the frequency characteristics measurer, and calculates a length of the refrigerant piping on the basis of the extracted lowest anti-resonant frequency.2. The piping length measuring system according to claim 1 , whereinthe piping length calculator extracts a plurality of anti-resonant frequencies under a given condition from the frequency characteristics measured ...

MAGNETIC SENSOR ARRANGEMENT

A magnetic sensor arrangement for determining information indicative of characteristics of a mechanical component has a first magnetic sensor to sense a signal associated with a periodic changing magnetic field generated by relative movement of the mechanical component and the magnetic sensor arrangement, a second magnetic sensor to sense that signal, wherein the first sensor is arranged a fixed distance from the second sensor, and a determination unit coupled to the first and second sensors to receive output signals of the first and second sensors. The output signal of the first sensor is phase-shifted to the output signal of the second sensor, to compare the output signals for determining the absolute phase of the signal associated with the periodic changing magnetic field, and to determine information indicative of characteristics of the mechanical component based on the determined absolute phase of the signal associated with the periodic changing magnetic field. 1. A magnetic sensor arrangement for determining information indicative of characteristics of a mechanical component ,the magnetic sensor arrangement comprisinga first magnetic sensor configured to sense a signal associated with a periodic changing magnetic field generated due to a relative movement of the mechanical component in relation to the magnetic sensor arrangement,a second magnetic sensor configured to sense the signal associated with the periodic changing magnetic field, wherein the first magnetic sensor is arranged at a fixed distance to the second magnetic sensor, anda determination unit coupled to the first magnetic sensor and the second magnetic sensor and being configuredto receive the output signal of the first magnetic sensor and the output signal of the second magnetic sensor, wherein the output signal of the first magnetic sensor is phase-shifted to the output signal of the second magnetic sensor,to compare the output signals for determining the absolute phase of the signal associated ...

Capacitive sensing system

The invention relates to a lithography system. The lithography system has a projection lens system and a capacitive sensing system. The projection lens system is provided with a final projection lens. The capacitive sensing system is arranged for making a measurement related to a distance between the final projection lens and a target. The capacitive sensing system includes at least one capacitive sensor. Additional, the capacitive sensing system is provided with a flexible printed circuit structure and at least one integrated flex print connector. The at least one sensor is located in the flexible printed circuit structure. The flexible printed circuit structure has a flexible base provided with conductive electrodes for the at least one sensor and conductive tracks. The conductive tracks extend from the electrodes along the at least one integrated flex print connector.

Drivable Distance Calculation Device and Drivable Distance Calculation Method

A drivable distance calculation device calculates a drivable distance that the vehicle equipped with the device can travel. The drivable distance calculation device includes a remaining battery capacity sensor which calculates a remaining capacity of a battery installed in the vehicle; and a arithmetic unit which calculates multiple power consumption ratios for different units of driving in accordance with variations in the remaining battery capacity calculated by the remaining battery capacity sensor and calculates the drivable distance based on the remaining battery capacity calculated by the remaining battery capacity sensor and a power consumption ratio selected from among the calculated multiple power consumption ratios. 1. A drivable distance calculation device that calculates a drivable distance that a vehicle can travel , the device comprising:a sensor that detects a remaining capacity of a battery installed in the vehicle;a storage that stores a plurality of power consumption ratios including at least a power consumption ratio of a short driving distance and a power consumption ratio of a long driving distance; andan arithmetic unit that calculates the drivable distance based on the remaining battery capacity detected by the sensor and a power consumption ratio selected from among the plurality of power consumption ratios stored on the storage, and outputs the calculated drivable distance to a display,wherein the arithmetic unit selects the power consumption ratio of the short driving distance from among the plurality of power consumption ratios stored on the storage when the remaining battery capacity detected by the sensor is smaller than a predetermined value.2. The drivable distance calculation device according to claim 1 , wherein the arithmetic unit selects the power consumption ratio of the short driving distance and the power consumption ratio of the long driving distance from among the plurality of power consumption ratios stored on the storage ...

Electric field time-grating linear displacement sensor based on single row multilayer structure

An electric field type time-grating linear displacement sensor based on a single row multilayer structure, including a moving ruler and a fixed ruler. The moving ruler having a row of induced electrodes and the fixed ruler having a row of excitation electrodes.

SYSTEM, APPARATUS AND METHOD FOR DETECTING WIRELINE TOOLS

The present disclosure provides a system, an apparatus and a method for detecting line-attached tools in an above-surface portion of a well for use during well-work overs and/or interventions. The system includes the apparatus which comprises: a body for housing at least one magnetic-field generator and at least one magnetic-field sensor; and a tubular portion that is configured to be housed within the body. The tubular portion has a bore for receiving the line-attached tools and the at least one magnetic-field sensor is configured for detecting changes in the magnetic field caused by the line-attached tool approaching, moving through and/or moving away from the body. The system may further include a processor unit for receiving one or more signals from the at least one magnetic-field sensor and for determining the location and/or one or more dimensions of the line-attached tool while approaching, moving through or moving away from the body. 1. An apparatus for detecting a line-attached tool that is moving through a well , the apparatus comprising:(a) a body that defines a central passageway for receiving the line-attached tool therethrough;(b) at least one magnetic-field generator that is configured to generate a magnetic field that extends at least partially across the central passageway; and(c) at least one magnetic-field sensor that is configured for detecting a change in one or more properties of the magnetic field that are caused by the line-attached tool approaching, moving through or moving away from the magnetic field.2. The apparatus of claim 1 , wherein the at least one magnetic-field generator is housed within the body.3. The apparatus of or claim 1 , wherein the at least one magnetic-field sensor is housed within the body.4. The apparatus of claim 1 , wherein the body is connectible with well in an arrangement where the central passage is substantially aligned with a central bore of the well.5. The apparatus of claim 1 , wherein the body is connectible ...

Displacement Transducer

A displacement transducer for a valve in a housing includes a cylindrical displacement transducer core, a coil, a coil housing, and a compensation element. The coil is positioned in the coil housing, and radially encloses the core. The coil housing has a first side supported by the housing, and a supporting face positioned between the first side and an axial end side of the coil housing facing away from the valve such that a length change of the coil is not limited in an axial direction facing away from the valve. The housing is axially supported on the compensation element via the supporting face. A side of the compensation element facing away from the valve is supported on one or more of (i) an adjustable cover, (ii) a standard component of a supporting chain of the core, and (iii) a component formed from a material with a suitable coefficient of thermal expansion.

Device for the position detection of an elevator car

A device for detecting the position of an elevator car ( 40 ) by a sensor and evaluation unit ( 20, 22, 24 ), accommodated in a sensor housing ( 10 ), which can be arranged on the elevator car, is designed for interaction with a strip ( 14 ) having a length and/or position coding and which is connected via a cable connection ( 26 ) to a switching unit that is accommodated separately from the sensor housing in a switching housing ( 12 ). The switching unit has a safety switch ( 30 ) and/or an interrupter contact for an emergency function, especially an emergency stop, of the elevator car. A switching device is associated with the position detecting device for inputting and storing a speed threshold value, the safety switch or interrupter contact being activated when said threshold value is reached or exceeded.

Device and method for displacement measurement used in sensing device

A displacement measurement device for a sensing device. The sensing device includes a first displacement sensor. The displacement measurement device includes: a drive signal generating circuit configured to output a drive signal to the first displacement sensor; a first signal processing circuit configured to receive a signal from the first displacement sensor and output a first ADSO signal; and a computing device including a first timer. The first timer is configured to receive a CLK512 signal and the first ADSO signal, and time or count according to the CLK512 signal and the first ADSO signal; and the CLK512 signal is a square wave signal related to a period and phase of the drive signal.

FISH LOGGING DEVICE AND DATA SYSTEM

The embodiments disclose a fish logging device configured to gather data on a fish caught by a user using a digital tape measure, a digital weight scale and a digital memory device coupled to the fish logging device apparatus, a safety fish lip gripper with serrated gripping jaws and a safety fish lip gripper finger grip activator coupled to the fish logging device apparatus for securing a fish to the fish logging device apparatus, a one touch selfie button coupled to the fish logging device to activate a user smart phone to take a photo of the fish caught, a fish logging device application installed on a user smart phone to download gathered data from the fish logging device apparatus digital memory device and upload and download the gathered data with a fish logging device server cloud and a fish logging device server cloud for gathering data about fishing including data on a fish caught by a user and configured to interactively upload and download data with the fish logging device application installed on a user smart phone. 1. A method , comprising:providing a fish logging device apparatus with a digital tape measure, digital weight scale and a digital memory device for gathering data on a fish caught by a user and for storing the gathered data on the digital memory device;displaying the gathered data on a fish logging device apparatus data display screen;providing a fish logging device apparatus safety fish lip gripper with serrated gripping jaws and a safety fish lip gripper finger grip activator for securing the fish to the fish logging device apparatus;activating a fish logging device apparatus selfie button for triggering a fish logging device application installed on a user smart phone for operating the user smart phone camera for capturing a photo of the fish; anddownloading the gathered data using the fish logging device application and uploading the gathered data including the user smart phone fish logging device application gathered data to a fish ...

System and Method for Thread Protrusion Verification

An apparatus comprises a housing and a plurality of electrical contacts. Each of the plurality of electrical contacts are arranged to sequentially contact a contact device as the contact device moves through the housing. The contact device comprises a first end configured to couple to a bolt, a second end opposite the first end, and a conductive region between a first insulated region and a second insulated region. 1. A system , comprising: a first end configured to couple to a bolt;', 'a second end opposite the first end; and', 'a conductive region between a first insulated region and a second insulated region; and, 'a contact device comprising a power supply brush configured to apply an electrical current or voltage to the conductive region of the contact device;', 'a first electrical brush configured to generate a first indication of the amount of thread protrusion of the bolt when the second end of the contact device has moved at least a first distance through the unit;', 'a second electrical brush configured to generate a second indication of the amount of thread protrusion of the bolt when the second end of the contact device has moved at least a second distance through the unit; and', 'a third electrical brush configured to generate a third indication of the amount of thread protrusion of the bolt when the second end of the contact device has moved at least a third distance through the unit., 'a unit for verifying an amount of thread protrusion of the bolt, the unit comprising a plurality of electrical brushes, each of the plurality of electrical brushes arranged to sequentially contact the contact device as the second end of the contact device moves through the unit, wherein the plurality of electrical brushes comprises2. The system of claim 1 , wherein:the first electrical brush is configured to generate the first indication of the amount of thread protrusion of the bolt when the first electrical brush contacts the conductive region of the contact device; ...

CONTROL SYSTEM

The invention relates to a control system for driving a motorized closure element of a motor vehicle, wherein a control arrangement and at least one distance sensor are provided in order to detect operator control events, wherein a distance from a user can be detected by means of the distance sensor. The invention proposes that the distance sensor has a changing sensitivity along a sensor extent, and in that a longitudinal movement by the user along the sensor extent produces a pattern in the profile of the sensor signal with respect to time, which pattern is detected by the control arrangement at least as part of an operator control event, owing to the sensitivity profile along the sensor extent. 1. A control system for driving a motorized closure element of a motor vehicle , wherein a control arrangement and at least one distance sensor are provided in order to detect operator control events , wherein a distance from a user can be detected by means of the distance sensor ,wherein the distance sensor has a changing sensitivity along a sensor extent, and in that a longitudinal movement by the user along the sensor extent, produces a pattern in the profile of the sensor signal with respect to time, which pattern is detected by the control arrangement at least as part of an operator control event, owing to the sensitivity profile along the sensor extent.2. The control system as claimed in claim 1 , wherein the sensor extent of the distance sensor runs in a straight line at least in sections claim 1 , and/or in that the sensor extent runs with a bend at least in sections.3. The control system as claimed in claim 1 , wherein the distance sensor has a sensor element which is arranged along the sensor extent of the distance sensor.4. The control system as claimed in claim 1 , wherein the sensor element is an elongate measurement electrode which comprises at least one electrical conductor.5. The control system as claimed in claim 1 , wherein the sensitivity profile along ...

DISPLACEMENT DETECTION DEVICE

To provide a displacement detection device that detects a displacement of a measuring object housed in a casing without changing the design of the casing or while suppressing the design change of the casing. 1. A displacement detection device comprising:a magnet which is located outside a casing that houses a measuring object and which forms a magnetic field inside the casing;a soft magnetic material which is connected to the measuring object inside the casing and displaced in accordance with displacement of the measuring object and which is disposed in a flow path of liquid or gas and in the magnetic field formed by the magnet; anda sensor which is disposed outside the casing and in a magnetic field formed by the magnet and which is configured to detect a change in magnetic flux density due to displacement of the soft magnetic material.2. The displacement detection device according to claim 1 , wherein the casing is made of a non-magnetic material.35-. (canceled)6. The displacement detection device according to claim 1 , wherein the soft magnetic material has a disk shape of which a cross-sectional shape in a cross section perpendicular to a displacement direction of the measuring object is circular.7. The displacement detection device according to claim 2 , wherein the soft magnetic material has a disk shape of which a cross-sectional shape in a cross section perpendicular to a displacement direction of the measuring object is circular.8. The displacement detection device according to claim 1 , wherein the soft magnetic material has a hole which is a flow path of liquid or gas.9. The displacement detection device according to claim 2 , wherein the soft magnetic material has a hole which is a flow path of liquid or gas.10. The displacement detection device according to claim 6 , wherein the soft magnetic material has a hole which is a flow path of liquid or gas.11. The displacement detection device according to claim 1 , wherein the soft magnetic material is ...

SYSTEMS AND METHODS FOR DETERMINING ABNORMAL INFORMATION ASSOCIATED WITH A VEHICLE

The present disclosure relates to systems and methods for determining abnormal information associated with a vehicle. The systems may perform the methods to obtain real-time information associated with a bicycle and obtain reference information associated with the bicycle. The systems may also perform the methods to determine, based on the real-time information and the reference information, abnormal information associated with the bicycle, and transmit the abnormal information to a server or a terminal device associated with the bicycle according to a Narrow Band Internet of Things (NB-IoT) technique or a Long Range (LoRa) technique. 1. A system , comprising:a storage device storing a set of instructions; obtain real-time information associated with a bicycle;', 'obtain reference information associated with the bicycle;', 'determine, based on the real-time information and the reference information, abnormal information associated with the bicycle; and', 'transmit the abnormal information to a server or a terminal device associated with the bicycle according to a Narrow Band Internet of Things (NB-IoT) technique or a Long Range (LoRa) technique., 'a processor in communication with the storage device, wherein when executing the set of instructions, the processor is configured to cause the system to2. The system of claim 1 , wherein the real-time information and the reference information include at least one of groups:a first voltage that is associated with a wheel of the bicycle and a reference voltage that is associated with the wheel of the bicycle;noise information associated with the bicycle and a relationship between noise frequency ranges and fault types associated with the bicycle;a second voltage that is associated with a solar panel installed on the bicycle and a voltage range that is associated with the solar panel; ora real-time level signal associated with a connection between the solar panel and a lock of the bicycle, and a reference level signal that is ...

PROXIMITY SENSOR FOR SUBSEA ROTATING EQUIPMENT

A proximity sensing system is configured to sense proximity of a rotating component in subsea rotating equipment such as pumps, compressors and separators. A plurality of sensing probe modules are included to sense proximity at various locations of the rotating shaft. The probe modules can include a fixed length stinger that can be gas-filled to maintain atmospheric pressure. The probe modules can also be a stinger-less design were the sensor is fixed to an inner pump housing and flexible cable is run through a channel of an outer pump pressure casing to a high pressure penetrator. 1. A subsea rotating machine having a proximity sensing system comprising:a rotating portion;a non-rotating pressure housing surrounding the rotating portion;a conduit formed through the pressure housing having an inner end opening near a target surface of the rotating portion and a outer end opening to an outer surface of the pressure housing;a proximity sensor probe fixed within the conduit at its inner end, the sensor probe having a sensor tip configured and positioned to sense distance between the sensor tip and the target surface;a high pressure penetrator configured to form a high-pressure seal with the pressure housing; anda cable running from sensor probe, through conduit to the penetrator.2. The machine of further comprising sensor electronics including an analog to digital converter claim 1 , the sensor electronics being in electrical connection with the sensor probe via at least the coaxial cable.3. The machine of wherein the sensor electronics being are in electrical connection with the sensor probe using one or more protected conduits.4. The machine of wherein the one or more protected conduits are configured to be gas-filled.5. The machine of wherein the sensor electronics are in electrical connection with a plurality of proximity sensor probes.6. The machine of wherein the cable is a coaxial cable.7. The machine of wherein the sensor probe includes at least some electronics ...

POSITIONING WITH A MAGNETIC SENSOR FOR A VEHICLE

A method to determine a position of a portable apparatus relative to a vehicle including generating a magnetic field by the vehicle, detecting the magnetic field by a magnetic field sensor of the portable apparatus, and evaluating the magnetic field to determine the position of the portable apparatus relative to the vehicle. 1. A method for determining a position of a portable apparatus relative to a vehicle , the method comprising:generating a magnetic field by the vehicle;detecting the magnetic field by a magnetic field sensor of the portable apparatus; andevaluating the magnetic field to determine a position of the portable apparatus relative to the vehicle.2. The method of claim 1 , wherein the evaluation of the magnetic field comprises taking into consideration a magnetic field of the Earth.3. The method of claim 1 , wherein the portable apparatus is a smartphone.4. The method of claim 1 , wherein the magnetic field sensor detects only a magnetic field component of an electromagnetic field as the magnetic field.5. The method of claim 1 , wherein the magnetic field sensor comprises a Hall sensor or an xMR sensor.6. The method of claim 1 , further comprising transmitting the position of the portable apparatus or measurement results from the magnetic field sensor via a radio link from the portable apparatus to the vehicle claim 1 , wherein the radio link is based on Bluetooth claim 1 , WLAN claim 1 , GSM and/or mobile radiocommunication.7. The method of claim 6 , wherein an authorization of the portable apparatus for the vehicle is checked by a challenge-response method via the radio link depending on the position of the portable apparatus.8. A method for activating a vehicle function claim 6 , the method comprising:determining a position of a portable apparatus relative to the vehicle by generating a magnetic field by the vehicle, detecting the magnetic field by a magnetic field sensor of the portable apparatus, and evaluating the magnetic field to determine a ...

Container fill level detection

Systems and methods for determining different fill levels of objects in the containers for disposable and consumable objects are disclosed. A sensor unit can detect presence of an object passing into a waste container and different levels of the objects in the waste container as the objects fill the waste container. When the waste container is full, a notification message may be generated to empty or replace the waste container. The sensor unit can also detect different levels of objects in a consumable container as the objects are removed from the consumable container. When the consumable container is empty, a notification message may be generated to refill or replace the consumable container. In embodiments of the invention, a notification message may also be generated for a predetermined level of objects in the container.

DISPLACEMENT DETECTION DEVICE

Provided is a displacement detection device which reduces the influence of disturbance noise on a magnetic field to be detected and makes a range detectable by a monopole magnet wider than a pitch of a magnetic detection elements. 1. A displacement detection device , comprising:a magnet which is displaced in one direction, is rod-shaped and has a form in which a longitudinal direction and the one direction form a predetermined angle; anda sensor in which magnetic detection element groups, which detect a magnetic flux density of a magnetic field formed by the magnet in directions orthogonal to the one direction, are arranged in pairs with a predetermined interval, and which outputs a difference between outputs of the magnetic detection element groups.2. The displacement detection device according to claim 1 , wherein:the sensor comprises: magnetic detection elements, which are included in the magnetic detection element groups and have a sensitive direction in a first direction orthogonal to the one direction; and magnetic concentrators which convert a magnetic flux in a second direction orthogonal to the one direction and the first direction into a magnetic flux in the first direction.3. The displacement detection device according to claim 2 , wherein:the sensor detects a magnetic flux density in the first direction by adding outputs of the magnetic detection elements included in the magnetic detection element groups and detects a magnetic flux density in the second direction by calculating a difference between the outputs of the magnetic detection elements included in the magnetic detection element groups.4. The displacement detection device according to claim 1 , wherein:the magnet has a magnetization direction in a direction orthogonal to the one direction.5. The displacement detection device according to claim 2 , wherein:the magnet has a magnetization direction in a direction orthogonal to the one direction.6. The displacement detection device according to claim ...

Dynamic collar swage conformance checking based on swage tool parameters

Systems and methods are provided for inspecting fastener installation. One embodiment is a method for inspecting installation of a fastener. The method includes determining an initial distance between a nose of a swage tool and an Inner Mold Line (IML) of a part, operating the swage tool to swage a collar onto a fastener that protrudes through the IML of the part, determining a terminal distance of the nose to the IML during swaging, prior to a pintail of the fastener breaking, and arriving at a conclusion indicating a state of a fastener installation, based on the terminal distance.

SYSTEMS AND METHODS FOR CLOSED LOOP CURRENT SENSING

A current sensor for sensing a direct magnetic field generated by a current through a conductor includes at least one first magnetic field sensing element spaced from at least one second magnetic field sensing element, with the magnetic field sensing elements configured to sense the direct magnetic field at different magnitudes. The direct magnetic field has a first direct coupling factor with respect to the at least one first magnetic field sensing element and a second direct coupling factor with respect to the at least one second magnetic field sensing element. A feedback conductor configured to carry a feedback current generates a feedback magnetic field that has a first feedback coupling factor with respect to the at least one first magnetic field sensing element and a second feedback coupling factor with respect to the at least one second magnetic field sensing element. A circuit generates the feedback current based on the direct and feedback magnetic fields and a sense element senses the feedback current. 1. A current sensor for sensing a direct magnetic field generated by a current through a primary conductor comprising:a plurality of magnetic field sensing elements comprising at least one first magnetic field sensing element spaced from at least one second magnetic field sensing element, wherein the at least one first magnetic field sensing element and the at least one second magnetic field sensing element are configured to sense the direct magnetic field at different magnitudes, the direct magnetic field having a first direct coupling factor with respect to the at least one first magnetic field sensing element and a second direct coupling factor with respect to the at least one second magnetic field sensing element;a feedback conductor configured to carry a feedback current generating a feedback magnetic field, the feedback magnetic field having a first feedback coupling factor with respect to the at least one first magnetic field sensing element and a ...

SMART GLASSES AND METHOD FOR CONTROLLING THE SAME

Smart glasses which is automatically activated by being used includes a display screen, a frame and two legs. A switch is located on a joint between the frame and one of the two legs. The switch turns on when the two legs rotate away and the switch turns off when the two legs rotate together. A state of the switch is acquired when the smart glasses is in a sleep mode and the display screen is activated when the switch turns on, and sensors on the smart glasses can further sense and detect physical characteristics of a user to identify the user and his authority and thus prevent or allow the automatic activation. 1. A pair of smart glasses comprising:a display screen;a frame and two legs, wherein the frame is connected to the two legs, and the two legs are rotatable relatively to the frame;a switch located on a joint between the frame and one of the two legs, wherein the switch turns on when the two legs rotate to away from the frame, and the switch turns off when the two legs rotate toward the frame;a storage device; andat least one processor, wherein the at least one processor is electrically connected to the switch;the storage device storing one or more programs, voice data and fingerprint data of at least one authorized user, which when executed by the at least one processor, cause the at least one processor to:acquire a state of the switch when the smart glasses is in sleep mode; andactivate the display screen when the switch turns on.2. The smart glasses according to claim 1 , wherein the at least one processor is further caused to:control at least one sensor to detect environmental data around the smart glasses when the switch turns on;determine whether a user is going to use the smart glasses according to the detected environmental data; andactivate the display screen when the user is going to use the smart glasses.3. The smart glasses according to claim 2 , wherein the at least one sensor is located on the two legs and electrically connected to the at least ...

MEASURING DEVICE FOR DETERMINING A DISTANCE IN A CONDUCTING STRUCTURE

The invention relates to a distance-measuring device for determining a distance between a reflection body in a conducting structure and a coupling region for electromagnetic waves, which region is provided on an end section of the conducting structure, said measuring device comprising a transmitting and receiving device, and a conduction junction () provided on the coupling region, for coupling the transmitting and receiving device to the conducting structure containing a medium, in order to couple an electromagnetic wave into the conducting structure, and to decouple the electromagnetic wave, reflected on the reflection body, from the conducting structure. Said measuring device also comprises an evaluation device for determining the distance between the coupling region and the reflection body from the complex reflection coefficient between the coupled electromagnetic wave and the decoupled electromagnetic wave. The invention also relates to the corresponding method. 1. A distance measuring device for determining a distance between a reflection body in a conducting structure and a coupling region for electromagnetic waves , which region is provided on an end section of the conducting structure ,{'b': '1', 'a) comprising a transmitting and receiving device and a conduction junction () provided on the coupling region for coupling the transmitting and receiving device to the conducting structure containing a medium in order to couple an electromagnetic wave into the conducting structure and to decouple the electromagnetic wave reflected on the reflection body from the conducting structure,'}b) comprising an evaluation device for determining the distance between the coupling region and the reflection body from the complex reflection coefficient between the coupled electromagnetic wave and the decoupled electromagnetic wave.233. The distance measuring device according to claim 1 , characterised in that a measuring line () is provided for detecting the material properties ...

LOOP-BASED MEASURING DEVICE

The present invention will provide a measuring device embedded within an elastic garment that will provide detect bodily movement by deforming a conductive material and measuring the change in electrical quantities within the conductive material as it deforms. Furthermore, the present invention will provide a measuring device configured to incorporate machine learning algorithms to estimate physiological, kinematic, dynamic, psychological, physical, biological, or other health parameters based upon the variations in electrical quantities within the conductive material as it deforms. This is accomplished through an elastic textile, a conductive element embedded within the elastic textile, and an electronic device configured to measure electrical quantities of the conductive element. These elements work in conjunction to detect and monitor movement in the human body. 1. A loop-based sensor , comprising:at least one conductive element embedded within a textile, said at least one conductive element forming at least one loop;a textile area formed within said at least one loop, said textile area configured to be worn on the surface of the body, said textile area configured to deform said at least one conductive element with the body as it moves; andan electronic device in electrical communication with said at least one conductive element, said electronic device configured to monitor the electrical quantities of said conductive element, wherein said electrical quantities change when said at least one conductive element deforms;wherein said electronic device will detect and measure body parameters by comparing changes in electrical quantities in said at least one conductive element.2. The sensor of claim 1 , wherein said electrical quantities comprise inductance and wherein said electronic device is configured to measure said inductance within said at least one conductive element.3. The sensor of claim 2 , wherein said measuring of said inductance comprises measuring the ...

METHOD AND APPARATUS FOR MEASURING PROCESS KIT CENTERING

Embodiments disclosed herein include a sensor wafer. In an embodiment, the sensor wafer comprises a substrate, wherein the substrate comprises a first surface, a second surface opposite the first surface, and an edge surface between the first surface and the second surface. In an embodiment, the sensor wafer further comprises a plurality of sensor regions formed along the edge surface, wherein each sensor region comprises a self-referencing capacitive sensor. 1. A sensor wafer , comprising:a substrate, wherein the substrate comprises a first surface, a second surface opposite the first surface, and an edge surface between the first surface and the second surface; anda plurality of sensors positioned along the edge surface, wherein each sensor is a capacitive sensor.2. The sensor wafer of claim 1 , wherein the plurality of sensors comprises at least three sensors.3. The sensor wafer of claim 1 , wherein each sensor is a self-referencing capacitive sensor claim 1 , and wherein each sensors comprises a first probe and a second probe claim 1 , wherein an output phase of the first probe is 180 degrees offset from an output phase of the second probe.4. The sensor wafer of claim 1 , further comprising:a recess into the first surface of the substrate proximate to each sensor.5. The sensor wafer of claim 4 , wherein the recess extends back from the edge surface at least 1.0 mm.6. The sensor wafer of claim 1 , further comprising:a plurality of second sensors on the second surface of the substrate.7. The sensor wafer of claim 6 , wherein the second sensors are recessed from the second surface.8. The sensor wafer of claim 1 , further comprising an electric field guard below each of the plurality of sensors.9. The sensor wafer of claim 1 , further comprising:a computing module, wherein the computing module is communicatively coupled to the plurality of sensors.10. The sensor wafer of claim 9 , wherein the computing module comprises one or more of a power source claim 9 , a ...

Inductive position sensor with switch function

An inductive sensor which includes one or more inductive coils and an inductance to digital converter. The output of the inductive sensor may be used to replace the functions of a switch and a potentiometer to initiate and control various outputs in welding-type systems and applications.

SYSTEMS AND METHODS FOR FREQUENCY SHIFTING RESONANCE OF AN UNUSED VIA IN A PRINTED CIRCUIT BOARD

In accordance with embodiments of the present disclosure, a circuit board may include a first trace formed in a first layer of the circuit board, a second trace formed in a second layer of the circuit board, a via, and a termination pad. The via may be configured to electrically couple the first trace to the second trace, the via comprising a via stub corresponding to a first portion of a length of the via not within a second portion of the via between a first location in which the first trace is electrically coupled to the via and a second location in which the second trace is electrically coupled to the via. The termination pad may be formed at an end of the via stub opposite at least one of the first location and the second location. 123-. (canceled)24. A method comprising:determining a length of a via stub, the via stub corresponding to a first portion of a via not within a second portion of the via electrically coupling a first trace of a circuit board to a second trace of the circuit board;determining a Nyquist frequency of signals communicated on the via and one or more harmonic frequencies thereof;estimating a resonance frequency of the via stub based on the length; andin response to determining that the resonance frequency is approximately equal to the Nyquist frequency or one of the one or more harmonic frequencies, determine a size of a termination pad to be formed on an end of the via stub.25. The method of claim 24 , the size of the termination pad determined such that an effective impedance of the via stub having the termination pad formed thereon is approximately equal to a desired impedance.26. The method of claim 25 , wherein the desired impedance comprises at least one of a desired capacitance and a desired inductance.27. The method of claim 25 , wherein the desired impedance is selected such that the via stub has a desired effective resonant frequency.28. The method of claim 24 , wherein the size is a radius of the termination pad.29. The method ...

LARGE SURFACE MAGNETIC FIELD SENSOR ARRAY

A plurality of magnetic field sensors (), for example arranged in an array (), is operative to measure changes in magnetic field strength proximate the surface(s) () of a test structure (). The test structure () may approximate the geometry of an airplane fuselage, wing, or the like. An electric current is applied to the test structure (), and the magnetic field sensors () sense changes in a magnetic field caused by the current. A corresponding plurality of integrators () convert the sensor () outputs to magnetic field strength values. From the plurality of magnetic field strength values and corresponding sensor locations (), a current density over the target surface () is inferred. 11001824. A method () of analyzing an electrical current over a target surface ( , ) , comprising:{'b': 102', '26', '32, 'providing () a plurality of magnetic field sensors (), each sensor operatively connected to an integrator ();'}{'b': '104', 'positioning () the plurality of magnetic field sensors proximate the target surface;'}{'b': '106', 'applying () an electrical current to the target surface;'}{'b': 108', '27, 'sensing () a change in magnetic field strength at one or more sensor locations ();'}{'b': '110', 'integrating () the changes in magnetic field strength to derive a magnetic field strength value at each sensor location; and'}{'b': '112', 'inferring () a current density over the target surface from the plurality of magnetic field strength values and corresponding sensor locations.'}2114116. The method of wherein inferring a current density over the target surface comprises inferring () a local current value from each magnetic field strength value claim 1 , and mapping () the local current values to the target surface using the corresponding sensor locations.3. The method of further comprising{'b': '118', 'interpolating () magnetic field strength values between sensor locations;'}{'b': '120', 'calculating () virtual sensor locations corresponding to the interpolated magnetic ...

PORTABLE SURFACE CHARACTERISTICS MEASUREMENT DEVICE AND CONTROL METHOD THEREOF

Disclosed are a portable surface characteristics measurement device and a control method thereof. The portable surface characteristics measurement device includes: a roughness sensor configured to convert a signal sensed from a surface of an object during movement of the portable surface characteristics measurement device on the surface of the object into an electric vibration signal; a movement measurement sensor configured to measure a movement physical quantity of the portable surface characteristics measurement device; and a processor configured to change a sampling interval depending on the measured movement physical quantity, and sample the vibration signal in real time, wherein the processor is configured to perform Fourier transform on the sampled vibration signal, and identify a peak frequency band shown in the Fourier-transformed vibration signal as surface roughness information of the object. 1. A portable surface characteristics measurement device comprising:a roughness sensor configured to convert a signal sensed from a surface of an object during movement of the portable surface characteristics measurement device on the surface of the object into an electric vibration signal;a movement measurement sensor configured to measure a movement physical quantity of the portable surface characteristics measurement device; anda processor configured to change a sampling interval depending on the measured movement physical quantity, and sample the vibration signal in real time,wherein the processor is configured to perform Fourier transform on the sampled vibration signal, and identify a peak frequency band shown in the Fourier-transformed vibration signal as surface roughness information of the object.2. The portable surface characteristics measurement device as claimed in claim 1 , wherein the processor is configured to decrease the sampling interval in case that the movement physical quantity is increased claim 1 , and increase the sampling interval in case ...

INDUCTIVE PROXIMITY SENSOR

A method and an inductive proximity sensor for detecting an object having at least one coil, wherein at least one transmission current pulse can be applied to the coil by a control and evaluation unit and having the control and evaluation unit for outputting an object detection signal, wherein the control and evaluation unit is configured to scan at least one induced voltage pulse that is generated by the transmission current pulse at the coil in at least one section from or after the point in time of the application of the transmission current pulse up to the point in time of the complete attenuation of the voltage pulse and to form scan values, whereby the voltage pulse is digitized. 1. An inductive proximity sensor for detecting an object , the inductive proximity sensor comprising:at least one coil, anda control and evaluation unit for outputting an object detection signal wherein at least one transmission current pulse can be applied to the at least one coil by the control and evaluation unit,wherein the control and evaluation unit is further configured to scan at least one induced voltage pulse that is generated by the transmission current pulse at the at least one coil in at least one section from or after the point in time of the application of the transmission current pulse up to the point in time of the complete attenuation of the voltage pulse and to form scan values, whereby the voltage pulse is digitized, wherein the control and evaluation unit is configured to evaluate the scan values of at least two voltage pulses for a distance determination of a metallic object.2. The inductive proximity sensor in accordance with claim 1 ,wherein the voltage pulse is digitized from the point in time of the application of the transmission current pulse up to the point in time of the complete attenuation of the voltage pulse.3. The inductive proximity sensor in accordance with claim 1 ,wherein the inductive proximity sensor has a first coil as the transmitter coil and ...

Air spring height measurement arrangement

The subject invention relates to an air spring height measurement arrangement comprising a magnetic field transmitting arrangement ( 110 ) and a magnetic field receiving arrangement ( 120 ). The magnetic field transmitting arrangement is adapted to adopt a first state and a second state with regard to the magnetic field receiving arrangement. One of the magnetic field transmitting arrangement ( 110 ) and the magnetic field receiving arrangement ( 120 ) comprises a first coil ( 141 ) and a second coil and the other comprises a third coil ( 143 ). A first central axis ( 161 ) of the first coil and a second central axis ( 162 ) of the second coil enclose a first angle ( 171 ) and, in the first state, a third central axis ( 163 ) of the third coil ( 143 ) and the first central axis enclose a second angle ( 172 ), which first and second angle cannot be 0°.

CABLE LENGTH DETERMINATION USING VARIABLE-WIDTH PULSES

A method of determining the length of a cable coupled to a transceiver of a network device includes transmitting a first series of pulses of a first pulse width onto a cable, receiving reflections of the first series of pulses, transmitting a second series of pulses of a second pulse width onto the cable, and receiving reflections of the second series of pulses. The second pulse width is wider than the first pulse width. It is determined whether the reflections of the first series of pulses satisfy a criterion. The length of the cable is calculated using either the reflections of the first series of pulses or the reflections of the second series of pulses, based at least in part on whether the reflections of the first series of pulses satisfy the criterion. 1. A method of determining cable length , comprising:in a network device comprising a transceiver:transmitting a first series of pulses of a first pulse width onto a cable;receiving reflections of the first series of pulses;transmitting a second series of pulses of a second pulse width onto the cable, wherein the second pulse width is wider than the first pulse width;receiving reflections of the second series of pulses;determining whether the reflections of the first series of pulses satisfy a criterion; andcalculating the length of the cable using either the reflections of the first series of pulses or the reflections of the second series of pulses, based at least in part on whether the reflections of the first series of pulses satisfy the criterion.2. The method of claim 1 , wherein the calculating uses the reflections of the second series of pulses when the reflections of the first series of pulses do not satisfy the criterion.3. The method of claim 1 , wherein the calculating uses the reflections of the first series of pulses when the reflections of the first series of pulses satisfy the criterion.4. The method of claim 1 , wherein claim 1 , when the reflections of the first series of pulses satisfy the ...

SMART ZIPPER AND GARMENT

A smart zipper includes: a fastener stringer including two rows of zipper teeth and a joint at one end of the two rows of zipper teeth for fixedly connecting the one end of the two rows of zipper teeth; a slider, including two lateral limiting portions, the two lateral limiting portions having conductive properties, and the two lateral limiting portions respectively electrically contacting outer edges of the two rows of zipper teeth; and a resistance measuring chip electrically connected to the two lateral limiting portions of the slider respectively, wherein the resistance measuring chip, the slider and the fastener stringer form a conductive loop. The resistance measuring chip is used for measuring the resistance value of the conductive loop, and outputting a measurement signal. The smart zipper provided by the present disclosure can detect its own closed state. Therefore, the user can know the closed state of the zipper in real time to avoid embarrassment or property loss due to unclosed zipper. 1. A smart zipper , comprising:a fastener stringer comprising two rows of zipper teeth and a joint at one end of the two rows of zipper teeth for fixedly connecting the one end of the two rows of zipper teeth;a slider, comprising two lateral limiting portions; the two lateral limiting portions having conductive properties, and the two lateral limiting portions respectively electrically contacting outer edges of the two rows of zipper teeth; anda resistance measuring chip electrically connected to the two lateral limiting portions of the slider respectively, wherein the resistance measuring chip, the slider and the fastener stringer form a conductive loop, the resistance measuring chip is used for measuring a resistance value of the conductive loop and outputting a measurement signal.2. The smart zipper according to claim 1 , wherein each of the zipper teeth in the fastener stringer is a conductor;the resistance measuring chip, the two lateral stop portions of the slider, ...

Sensor for detecting an object and method of evaluating a sensor signal

A sensor for detecting an object is provided that has a detection unit for detecting a sensor signal and a control and evaluation unit that is configured to determine an object property by evaluating the sensor signal, to determine a correction value for interference of the sensor environment from the sensor signal using a method of machine learning, and to take the correction value into account in the determination of the object property.

SINGLE-ELEMENT DOOR/WINDOW OPENING DETECTOR

A door/window opening detector including an antenna having at least a first resonant frequency and a second resonant frequency associated therewith, the second resonant frequency being different from the first resonant frequency, the antenna having the first resonant frequency when in proximity to a door/window having a given dielectric constant and the second resonant frequency when not in proximity to a door/window having the given dielectric constant, and an alarm indication generator operable, in response to receiving an indication that a resonant frequency of the antenna has changed from the first resonant frequency to the second resonant frequency, for generating an alarm indication of opening of the door/window. 1. An article proximity indicator comprising:an antenna having at least a first resonant frequency and a second resonant frequency associated therewith, said second resonant frequency being different from said first resonant frequency, said antenna having said first resonant frequency when in proximity to an article having a given dielectric constant and said second resonant frequency when not in proximity to said article having said given dielectric constant;a high-frequency detector operable for generating a direct electrical current corresponding to an intensity of a reflected electromagnetic signal received from said antenna;an analog to digital converter communicating with said high-frequency detector and operable for receiving said direct electrical current corresponding to said intensity of said reflected electromagnetic signal from said high-frequency detector and for converting said direct electrical current into a digital value corresponding to said intensity of said reflected electromagnetic signal; and for receiving said digital value from said analog to digital converter;', 'for ascertaining, based on said digital value corresponding to said intensity of said reflected electromagnetic signal, whether said resonant frequency of said ...

MEASURING RANGE SHIFT FOR SMART AIR SPRINGS

An air spring height sensor () is provided which comprises a receiver () for receiving a height signal and an evaluation unit (). The receiver is adapted for being mounted to an air spring so as to sense a height signal with respect to said air spring. The evaluation unit comprises an input terminal (), a multiplexer (), a first signal branch () starting from the input terminal and terminating at a first multiplexer input (), and a second signal branch () starting from the input terminal and terminating at a second multiplexer input (). The first signal branch includes a first amplitude limiter () being adapted to cut off the amplitude above a predetermined first threshold value. The multiplexer is adapted to select a measurement signal from one of the inputs of the multiplexer. 1. An air spring height sensor comprising:a receiver for receiving a height signal, andan evaluation unit,wherein the receiver is adapted for being mounted to an air spring so as to sense a height signal with respect to said air spring, an input terminal,', 'a multiplexer,', 'a first signal branch starting from the input terminal and terminating at a first multiplexer input, and', 'a second signal branch starting from the input terminal and terminating at a second multiplexer input,, 'wherein the evaluation unit comprises'}wherein the first signal branch includes a first amplitude limiter being adapted to cut off the amplitude above a predetermined first threshold value, andwherein the multiplexer is adapted to select a measurement signal from one of the inputs of the multiplexer.2. The air spring height sensor according to claim 1 , wherein the first branch between the first amplitude limiter and the first multiplexer input includes a digital programmable filter.3. The air spring height sensor according to claim 2 , wherein the first branch between the digital programmable filter and the first multiplexer input includes a logarithmic amplifier.4. The air spring height sensor according to ...

Size measurement device and size measurement system

[Solution Means] A size measurement system includes a size measurement apparatus (10) configured to be attached to a body of a user to measure a size and the like of the body of the user and output sensor measurement information representing the measured size and the like, a user terminal (20) configured to be operated by the user who measures the body, and a management server (30) configured to manage size information, shape information, and the like of apparel merchandise and provide merchandise search result information that is user size information as body size information of the user based on the sensor measurement information and information concerning merchandise matching the size.

NETWORK TEST INSTRUMENT WITH CABLE CONNECTION AND SIGNATURE TESTING

A test instrument can be coupled to a test point and measure signals in the network. The test instrument may determine whether the test instrument is connected to a cable of the network and provide notification if the test instrument is not connected to a cable. The test instrument may also detect when it is connected to a customer premises that has been previously been tested through reflected signal signatures. 1. A test instrument comprising:at least one port connectable to a cable;a pulse generator to output a reflectometry pulse to the at least one port;a measurement circuit to measure characteristics of a reflected pulse received on the at least one port; anda processing circuit to determine whether the at least one port of the test instrument is connected to a minimum length cable based on the measured characteristics.2. The test instrument of claim 1 , wherein the processing circuit facilitates the measurement circuit to measure signals received via the at least one port in response to determining the at least one port is connected to the minimum length cable.3. The test instrument of claim 1 , wherein claim 1 , in response to determining the at least one port is not connected to a minimum length cable claim 1 , the processing circuit performing at least one of providing notification that the test instrument is not connected to a minimum length cable and preventing measurements of signals received via the at least one port.4. The test instrument of claim 1 , wherein to determine whether the at least one port of the test instrument is connected to a minimum length cable claim 1 , the processing circuit is to determine a reflection time of the reflectometry pulse claim 1 , and determine whether a minimum length cable is connected to the at least one port based on the reflection time.5. The test instrument of claim 4 , wherein the processing circuit determines whether a minimum length cable is connected to the at least one port based on the reflection time and ...

Method and device for discriminatory capacitive detection, and apparatus provided with such a device

A method for capacitive detection of nearby objects that may be located in the environment of an equipment provided with a capacitive detection device including a detection step, called discriminative detection step, including the following operations:polarizing a first nearby object at a first alternating potential (V1), different from a ground potential (M), and from the potential of at least one second nearby object, at a first frequency (F1); anddetermining a first discriminative signal representative of a capacitance, called electrode-object capacitance, seen by the at least one measurement electrode, at said first frequency (F1).

FIN WIDTH MEASUREMENT USING QUANTUM WELL STRUCTURE

A method for accurately electrically measuring a width of a fin of a FinFET, using a semiconductor fin quantum well structure is provided. The semiconductor fin quantum well structure includes a semiconductor substrate and at least one semiconductor fin coupled to the substrate. Each of the semiconductor fin is sandwiched by an electrical isolation layer from a top and a first side and a second side across from the first side, to create a semiconductor fin quantum well. At least one gate material is provided on each side of the electrical isolation layer. A dielectric layer is provided over the top of the electrical isolation layer to further increase the electrical isolation between the gate materials. The width of the semiconductor fin is measured accurately by applying a resonant bias voltage across the fin by applying voltage on the gate materials from either side. The peak tunneling current generated by the applied resonant bias voltage is used to measure width of the fin. 1. A method , comprising: a semiconductor fin;', 'an electrical isolation layer covering the fin at a top, a first side and a second side opposite the first side;', 'a dielectric layer above the top isolation layer;', 'a first layer of gate material adjacent the first side isolation layer; and', 'a second layer of gate material adjacent the second side isolation layer;, 'providing a semiconductor fin quantum well structure, the structure comprisingapplying a resonant voltage bias across the fin by applying a first voltage to the first layer of gate material and a second voltage to the second layer of gate material;measuring a peak tunneling current through the isolation layer on the first side, across a width of the fin and through the isolation layer on the second side; anddetermining the width of the fin based on the measured peak tunneling current.2. The method of claim 1 , wherein determining a width of the fin comprises indexing into a preexisting table of peak tunneling current ...

Conveyor carriage position monitoring

A carriage system including a carriage having a target; a winch; a position sensor configured to sense a position of the target; and a controller. The winch includes a cable, a motor, and a motor sensor. The cable couples the carriage to the winch. The motor sensor senses a motor characteristic. The controller is configured to receive the motor characteristic and the position of the target, calculate a characteristic of the system, and output the characteristic.

ELECTRONIC FABRIC FOR SHAPE MEASUREMENT

Disclosed embodiments provide a way to measure the size of an object using an electronic fabric. Embodiments are particularly well suited for measuring human body parts such as legs, arms, feet, and the like. The measurements are acquired simply by wearing a garment comprised of the electronic fabric. Electrical properties such as resistance and capacitance are measured. These electrical properties are converted to distance measurements. The measurements are acquired by a local processor and then transmitted to a server, where the sizing information is converted to a higher level size, such as a dress size. Additionally, the sizing information can be converted to a clothing pattern to efficiently enable customized clothing based on size. 1. An apparatus for measurement comprising:an electronic component incorporated with a fabric, where the electronic component includes a plurality of flexible electrically-conductive threads that comprise the fabric;insulating threads incorporated with the flexible electrically-conductive threads wherein the insulating threads also comprise the fabric and insulate a signal from a first electrically-conductive thread, of the plurality of flexible electrically-conductive threads, from other threads in the plurality of flexible electrically-conductive threads; anda processing module, coupled to the flexible electrically-conductive threads that obtains sizing dimension information using the plurality of flexible electrically-conductive threads.2. The apparatus of wherein the flexible electrically-conductive threads are used to determine the sizing dimension information based on resistance.3. The apparatus of wherein the flexible electrically-conductive threads are stretchable and resistance of the electrically-conductive threads change as the flexible electrically-conductive threads are stretched.4. The apparatus of wherein the flexible electrically-conductive threads are further used to determine the sizing dimension information based ...

ELECTROSTATIC CAPACITANCE TYPE HEIGHT SENSOR, LASER MACHINING NOZZLE USING SAME, AND LASER MACHINING DEVICE

Electrostatic capacitance type height sensor () includes sensor electrode () attached to a tip of laser machining nozzle (), signal processor () that transmits a voltage signal to sensor electrode () and detects a signal from sensor electrode () to measure a distance between a tip of sensor electrode () and workpiece () electrically connected to a ground, and cable () electrically connecting sensor electrode () to signal processor (). Signal processor () includes a disconnection determinator that determines that cable () is broken if the signal from sensor electrode () is higher or equal to a predetermined level. 1. An electrostatic capacitance type height sensor comprising:a sensor electrode attached to a tip of a laser machining nozzle;a signal processor that transmits a voltage signal to the sensor electrode and detects a signal from the sensor electrode to measure a distance between a tip of the sensor electrode and a workpiece electrically connected to a ground; anda cable electrically connecting the sensor electrode to the signal processor,wherein the signal processor includes a disconnection determinator that determines that the cable is broken on condition that the signal from the sensor electrode is higher or equal to a predetermined level.2. The electrostatic capacitance type height sensor according to claim 1 , wherein the predetermined level is within a range from a value of the signal sent from the sensor electrode when the distance between the tip of the sensor electrode and the workpiece is a predetermined distance that is longer than a maximum distance set for laser processing to a value of the signal sent from the sensor electrode when the cable is not connected to the signal processor claim 1 , inclusive.3. A laser machining nozzle comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a first nozzle electrically connected to the sensor electrode of the electrostatic capacitance type height sensor according to , the first nozzle defining a ...

DOWNHOLE GRADIOMETRIC RANGING FOR T-INTERSECTION AND WELL AVOIDANCE UTILIZING TRANSMITTERS & RECEIVERS HAVING MAGNETIC DIPOLES

A ranging system utilizes gradiometric data to determine the direction to and distance between a first and second well without any knowledge or involvement of the borehole or formation characteristics in order to intersect and/or avoid the second well. In general, this is achieved by deploying a downhole assembly comprising transmitters and receivers having magnetic dipoles, along with bucking receivers positioned between the transmitters and receivers. 1. A method for downhole ranging , the method comprising:drilling a first wellbore, the first wellbore comprises an elongated conductive body;deploying at least two magnetic dipole transmitters and at least four magnetic dipole receivers in a second wellbore;inducing a current along the first wellbore using the transmitters that results in a magnetic field being emitted from the first wellbore;receiving the magnetic field utilizing the receivers, wherein a gradient field is measured; andutilizing the gradient field to determine a distance between the first and second wellbores.2. A method as defined in claim 1 , wherein the gradient field is measured in an axial direction along the second wellbore.3. A method as defined in claim 1 , wherein the gradient field is measured in at least three directions.4. A method as defined in claim 1 , further comprising determining a direction of the first wellbore in relation to the second wellbore claim 1 , wherein determining the direction further comprises:determining a total field of the received magnetic field;determining an angle between x and y components of the total field; andutilizing the angle to determine the direction.5. A method as defined in claim 1 , further comprising utilizing the gradient field of the received magnetic field to thereby determine a direction of the first wellbore in relation to the second wellbore.6. A method as defined in claim 5 , wherein determining the direction further comprises:determining an angle between two orthogonal components of the ...

High pressure magneto-resistive non-contact displacement sensor

A sensor system includes: a sensor insert sub-assembly including a sensor holder, a biasing magnet connected to the sensor holder, and a first sensor connected to the sensor holder, wherein a first end of the sensor housing insert sub-assembly is configured to face a target; and a pressure barrier connected to the sensor insert sub-assembly. A portion of the pressure barrier extends between the first end of the sensor housing insert sub-assembly and the target. There is a gap between the portion of the pressure barrier and the first end of the sensor insert sub-assembly. The first sensor includes a magneto-resistive sensor that is configured to detect a displacement of the target relative to the sensor housing insert sub-assembly.

Wearable fitness band that measures the circumference of arms, legs, and other body parts

Wearable fitness band that measures the circumference of arms, legs, and other body parts is disclosed. This invention is a wearable product that can be used during an exercising session. This product can expand and contract as the users muscles expand and contract, while actively measuring circumference.

Method, sensor, and printed circuit board for sensing position or motion of a shaft

The present disclosure presents a method, a sensor comprising printed circuit board (PCB), and a sensor PCB for a capacitive sensor for sensing position or motion of a shaft comprising an electrically conducting part. The method and the sensor utilise the sensor PCB that comprises a mounting hole through which the conducting part of the shaft can be mounted, at least one capacitor electrode formed to the printed circuit board, wherein an electrode surface of the electrode extends parallel to a center axis of the mounting hole and faces the center axis.

MULTIPLE MODE ARTIFICIAL FISHING LURE

A multiple mode fishing lure that includes a main body portion having a waterproof inner capsule, the waterproof inner capsule containing an electronic circuit to produce sounds which mimic bait fish. The electronic circuit includes a controller having pre-recorded bait fish sounds replaceably stored thereon and operationally coupled to a speaker to broadcast the bait fish sounds, a power source for providing power to the components of the electronic circuit, and a plurality of electrodes, wherein each electrode can be actuated, and wherein actuation of at least one of the plurality of electrodes gives an operational result. The multiple mode fishing lure further includes at least one hook coupled to the main body. 1. A multiple mode fishing lure , comprising: [ [ a speaker to broadcast bait fish sounds generated from said digital sound file data;', 'a wireless transceiver configured to receive said digital sound file data from said user-controlled external device;', 'a plurality of electrodes, wherein each of the electrodes of said plurality of electrodes is actuated via an actuation means, and wherein actuation of at least one electrode of said plurality of electrodes gives an operational result; and, 'a controller having a memory configured to replaceably store digital sound file data, wherein said digital sound file data is transmitted from a user-controlled external device, said controller being operationally coupled to, 'a power source for providing power to said electronic circuit; and, 'said waterproof inner capsule containing an electronic circuit comprising, 'at least one hook coupled to said main body portion., 'a main body portion having a waterproof inner capsule;'}2. The multiple mode fishing lure of claim 1 , wherein said operational result is changing a power state of said multiple mode fishing lure.3. The multiple mode fishing lure of claim 2 , wherein said operational result is obtained by actuation of all of said plurality of electrodes.4. The ...

DESIGN STRUCTURES AND METHODS FOR EXTRACTION OF DEVICE CHANNEL WIDTH

Methods and design structures for extraction of transistor channel width are disclosed. Embodiments may include determining effective channel widths of transistors of a plurality of integrated circuits as a function of drawn channel widths of the transistors, and determining a target channel width for a target transistor based on the effective channel widths. 1. A method comprising:determining effective channel widths of transistors of a plurality of integrated circuits as a function of drawn channel widths of the transistors; anddetermining a target channel width for a target transistor based on the effective channel widths.2. The method according to claim 1 , further comprising:determining respective total capacitances of the plurality of integrated circuits between gate nodes and shorted source, drain, and/or substrate nodes of the transistors; anddetermining the effective channel widths based, at least in part, on the respective total capacitances.3. The method according to claim 2 , wherein transistors for each integrated circuit have a single drawn channel width claim 2 , and the single drawn channel width varies between the plurality of integrated circuits.4. The method according to claim 2 , wherein each transistor includes a gate dielectric layer claim 2 , with the gate dielectric layer varying between groups of the plurality of integrated circuits.5. The method according to claim 2 , further comprising:determining overlap capacitance between the gate node and the source node and/or the drain corresponding to the plurality of integrated circuits; anddetermining the effective channel widths based, at least in part, on the overlap capacitance.6. The method according to claim 1 , further comprising:determining respective metal line capacitances between metal lines and substrates, without gate, source, and drain contacts for the transistors, of the plurality of integrated circuits; anddetermining the effective channel widths based, at least in part, on the ...

Omnipolar Schmitt Trigger

A sensor is provided having a magnetic field sensing element to generate a magnetic field signal, a switching circuit coupled to receive the magnetic field signal and generate a switching signal that changes a polarity of the magnetic field signal at a predetermined frequency, and a comparison device configured to receive the switching signal and generate an output signal that changes a level in response to the switching signal crossing a predetermined threshold. The switching circuit is disposed between the magnetic field sensing element and the comparison device and can provide the comparison device an input signal (i.e., the switching signal) that changes polarity at the predetermined frequency. The comparison device can sense characteristics, such as but not limited to crossing operate and release threshold levels, of both north and south polarity magnetic field signals using the switching signal.

Flight control position sensor

A flight control surface position sensor assembly for an aircraft including a position indicator positioned on a pulley wherein the pulley is secured to the aircraft and the pulley engages a cable associated with a flight control surface of the aircraft. The flight control surface position sensor assembly further includes a sensor which senses rotation of the position indicator with rotation of the pulley

CONTAINER WITH INTEGRATED INDICATOR

A warning on an amount of welding wire remaining in a package can be implemented with an indicator system integrated within the package. The indicator system a visual indication on the amount of wire remaining. The visual indication is updated as the wire is dispensed during a welding operation. The indicator system includes one or more sensing elements that engage the welding wire at various locations. When the wire is dispensed, the sensing elements eventually lose engagement and output a corresponding signal. The visual indication is updated based on the signals from the sensing elements. 1. A system , comprising:at least two sensing elements mountable within a container for a coil of welding wire so as to engage the coil of welding wire at different locations;an indicator configured to provide a visual indication of an amount of welding wire remaining; anda circuit operatively coupled to the at least two sensing elements and the indicator, wherein the circuit is configured to update the visual indication provided by the indicator in response to inputs indicative of respective statuses of the at least two sensing elements.2. The system of claim 1 , wherein the at least two sensing elements are non-contact inductive sensors.3. The system of claim 1 , wherein the at least two sensing elements are configured to be vertically spaced within the container to engage the coil of welding wire at different heights.4. The system of claim 1 , wherein the at least two sensing elements respectively output a status signal indicative of whether a portion of the welding wire is in proximity to the respective sensing element.5. The system of claim 4 , wherein the circuit is further configured to update the visual indication provided by the indicator based on respective status signals from the at least two sensing elements.6. The system of claim 5 , wherein the visual indication corresponds to one of a set of states claim 5 , each state corresponds to a set of statuses of the at ...

INSTALLATION QUALITY FEEDBACK SYSTEM

The invention relates a system for providing information about installation quality of load elements (). Performance of power distribution systems, such as Power-over-Ethernet (PoE) systems, is depending on the overall system installation performance like quality of the connections () between power control devices () (e.g. PoE switches) and the powered load elements () (e.g. luminaires), Cat5/6 cable quality, cable type, length of the cables, aging of the connections, etc. The proposed system is able to provide feedback and to judge system installation performance at t=0 and over time. 1. A control apparatus for providing information about connection quality of a network cable used for connecting at least one load element , said control apparatus being adapted to:determine a resistance of said network cable, and to use said determined resistance for estimating a length of said network cable, characterized in that said apparatus is adapted to determine said resistance of said network cable based on a calculated power loss of said network cable; and said control apparatus further being adapted to:evaluate said connection quality based on checking whether length of said network cable is within a cable length normal range determined by a known physical location of said at least one load element.2. The apparatus of claim 1 , wherein said apparatus is adapted to determine the physical location based on a commissioning of said load element in the network claim 1 , to check if said load element is a neighborhood device claim 1 , and to estimate an expected actual distance of said load element based on an average distance of neighborhood devices.3. The apparatus of claim 1 , wherein said apparatus is adapted to calculate said power loss based on measured voltage and current values at an output of said apparatus and at an input of said load element claim 1 , and a determined current through the network cable.4. The apparatus of claim 3 , wherein said apparatus is adapted to ...

System and method for monitoring health of airfoils

A method is presented. The method includes the steps of generating rotation signals corresponding to a plurality of rotations of a rotor physically coupled to a plurality of blades, and determining peak voltages corresponding to the plurality of blades by applying time synchronous averaging technique to blade passing signals using the rotation signals, wherein the peak voltages are representative of clearances of the plurality of blades.

ROLLABLE DISPLAY PANEL AND ROLLABLE DISPLAY DEVICE HAVING THE SAME

A rollable display panel and a rollable display device, the rollable display panel including a display region configured to display an image; a non-display region surrounding the display region; and a resistor sensor in the non-display region including sensing material of which resistance values are different by location, wherein the resistor sensor outputs a sensing signal that is regularly changed proportional to a rolling length of the rollable display panel, and a sensor driver that determines a driving region of the rollable display panel based on the sensing signal. 1. A rollable display device , comprising:a rollable display panel including a display region and a non-display region surrounding the display region;a resistor sensor in the non-display region including sensing material of which resistance values are different by location, wherein the resistor sensor outputs a sensing signal that is regularly changed proportional to a rolling length of the rollable display panel; anda sensor driver that determines a driving region of the rollable display panel based on the sensing signal,wherein the resistor sensor outputs the sensing signal based on a sum of the resistance values of the sensing material.2. The rollable display device as claimed in claim 1 , wherein the resistance value of the sensing material changes according to a pressure applied thereto.3. The rollable display device as claimed in claim 1 , wherein the resistor sensor further includes a first electrode and a second electrode coupled to ends of the sensing material.4. The rollable display device as claimed in claim 1 , wherein the resistance value of the sensing material increases as a curvature of the rollable display panel decreases.5. The rollable display device as claimed in claim 1 , wherein the sensing material has a triangle shape of which an area decreases as the curvature decreases when viewed on a plane view.6. The rollable display device as claimed in claim 1 , wherein the sensing ...

Position Measuring Device

A position measuring device includes a measuring standard that has a first magnetization in a first section for generating a first signal level. The first magnetization is oriented in a first direction, has a first clearance between two adjacent unlike poles, and generates a first maximum of the field strength at the working distance. Furthermore, the measuring standard has a second magnetization in a second section situated next to the first section for generating a second signal level. The second magnetization is oriented in a second direction, has a second clearance between two unlike poles, and generates a first maximum of the field strength at the working distance. The first direction is oriented counter to the second direction, the first clearance is greater than the second clearance, and the first maximum is greater than the second maximum. 1. A position measuring device , comprising:a measuring standard including magnetic poles arranged along a measuring direction; anda scanning unit including a sensor and adapted to generate an electrical signal when the measuring standard is scanned at a working distance along the measuring direction;wherein the measuring standard includes a first magnetization in a first section to generate a first signal level of the electrical signal, the first magnetization being oriented in a first direction, having a first clearance between two adjacent, unlike poles, and being adapted to generate a first maximum of magnetic field strength at the working distance;wherein the measuring standard includes a second magnetization, to generate a second signal level of the electrical signal, in a second section located adjacent to the first section, the second magnetization being oriented in a second direction, having a second clearance between two adjacent, unlike poles, and being adapted to generate a second maximum of the magnetic field strength at the working distance; andwherein the first direction is oriented counter to the second ...

COMBINATION SENSOR

An arrangement for automatically contactlessly detecting elongate objects (W), such as cables, wires or profiles, has a quasi-coaxially arranged group of a first optical measuring system (D) for determining the external diameter and a second optical measuring system (C) for determining the color using a different measurement principle. The functional and local separation of the two measuring systems (C, D) is achieved by using different wavelength ranges and by a long-pass filter (C). A third, virtual measuring system (P) may be provided for the purpose of determining the cable location and is used to weight measured values of the color measurement and measured values of an optional eddy current sensor. The optical measuring systems (D, C, P) for determining the diameter, the color and the position have a common optical disc-shaped measuring volume (DCPv) which is preferably arranged centrally in the guide device () for the elongate object (W). 1. An arrangement for automatic contactless detection of elongate objects (W) , comprising at least two optical measuring systems (D , C) based on different measurement methods ,wherein at least a first optical measuring system (D) for determining an outside diameter (Wdo) of the object (W) and at least one second optical measuring system (C) for determining a color of the object (W) from a combination with a common disk-shaped measurement volume (DCPv),{'b': 1', '4, 'the first measuring system (D) comprises at least a first illumination arrangement (DP) and a first sensor array (DP) positioned on the opposite side of the measurement volume (DCPv),'}{'b': 2', '1', '1, 'a lens (DCP) is arranged between the first illumination arrangement (DP) and the measurement volume (DCPv), which lens is designed and positioned as a collimating lens for light of the first illumination arrangement (DP), and'}{'b': 1', '4', '3', '1', '2', '2', '4, 'the second measuring system (C) comprises at least one second illumination arrangement (C), a ...

Electrical Power Transmission Line Length Measurement and Average Temperature Estimation

A system and method for measuring length of an electrical power transmission line, and for estimating the average temperature of the line over the measured length. A signal is applied to the line and reflected from a reflection point to obtain a present measure of the line's length. A modified catenary equation uses the length measurement and other variables to estimate average temperature. This temperature measurement can then be used to determine how much power the line is presently capable of safely carrying. 1. A method of controlling the amount of electrical power delivered to an electric transmission line (conductor) , comprising:applying an electrical signal to the conductor;detecting a reflection signal reflected from a reflection point on the conductor;using processing equipment to perform the following: calculate the reflection propagation delay of the reflected signal; calculate the present length of the conductor based on the propagation delay; receive data representing the present tension of the conductor; receive data representing conductor reference parameters, comprising a reference tension value and reference length value both taken at a reference temperature value; receive data representing conductor characteristic parameters, comprising conductor weight, span length, elasticity, thermal expansion, and plastic deformation; and calculate the average temperature of the conductor based on the present length, present temperature, reference parameters and characteristic parameters;delivering average temperature data to a transmission capacity controller; anddispatching power to the conductor based on the average conductor temperature data.2. The method of claim 1 , wherein the reflector is an electrical signal reflector permanently placed on the transmission line.3. The method of claim 1 , further comprising placing an electrical signal reflector on the conductor to provide a reflection point.4. The method of claim 1 , further comprising storing data ...

LENGTH MEASURING DEVICE

A length measuring device is provided, which includes a case, a first rotating part configured to rotate while a portion of a circumference thereof exposed outside the case is in contact with a measured object, a rotation interfering part configured to interfere with an inertial rotation of the first rotating part, and a control part configured to calculate a length measurement using an amount of rotation of the first rotating part. 1. A length measuring device , comprising:a case;a first rotating part configured to rotate while a portion of a circumference thereof exposed outside the case is in contact with a measured object;a rotation interfering part configured to interfere with an inertial rotation of the first rotating part; anda control part configured to calculate a length measurement using an amount of rotation of the first rotating part.2. The length measuring device of claim 1 , wherein the first rotating part comprises a rotator claim 1 , wherein the rotator comprises: a groove to receive the rotation interfering part; and a bump formed on an inner wall of the groove claim 1 , andthe rotation interfering part comprises one or more interfering protrusions configured to contact the bump formed on the inner wall of the groove to interfere with the inertial rotation of the first rotating part.3. The length measuring device of claim 2 , wherein the bump formed on the inner wall of the groove has a serrated structure and is formed of an elastic material.4. The length measuring device of claim 3 , wherein the rotator comprises a projecting part claim 3 , wherein the projecting part has a magnet insertion groove to receive a magnet inserted therein claim 3 ,the groove is formed along a circumference of the projecting part,the interfering protrusion is formed on a side surface of the rotation interfering part, anda hole is formed at a center of the rotation interfering part so that the magnet and the projecting part do not contact the rotation interfering part.5. ...

Systems and methods for determining abnormal information associated with a vehicle

The present disclosure relates to systems and methods for determining abnormal information associated with a vehicle. The systems may perform the methods to obtain real-time information associated with a bicycle and obtain reference information associated with the bicycle. The systems may also perform the methods to determine, based on the real-time information and the reference information, abnormal information associated with the bicycle, and transmit the abnormal information associated with the bicycle.

RANGING SYSTEM

The present disclosure discloses a ranging system comprising a signal transmitter, a signal receiver, a ranging wheel, an electronic counter, an angle sensor and a data processing module integrated within a same device. The present disclosure also discloses a ranging system comprising a ranging device and a terminal device in communication with the ranging device, the ranging device comprises a signal transmitter, a signal receiver, a ranging wheel and an electronic counter, the terminal device comprising a data processing module. The ranging device or the terminal device also includes an angle sensor therein. The data processing module displays the received laser ranging information, or generates, in real-time, the travel trajectory of the ranging wheel based on distance information of the electronic counter and angle information of the angle sensor and draws the travel trajectory. The present disclosure may enable continuous measurement of any regular route, and meanwhile can also generate the corresponding travel trajectory and effectively improve the working efficiency; in addition, it may mark dots or mark lines for an actual construction site according to a pre-designed drawing. 1. A ranging system , characterized in that: the ranging system comprising a signal transmitter , a signal receiver , a ranging wheel , an electronic counter , an angle sensor , a data processing module and a display module , wherein ,each of the signal receiver, the electronic counter and the angle sensor is connected with the data processing module, the signal receiver receives a signal transmitted by the signal transmitter and converts the signal into an electric signal to be transferred to the data processing module, the data processing module processes the electric signal to obtain ranging information; the electronic counter transfers distance information of the ranging wheel to the data processing module, the angle sensor transfers angle information of the ranging wheel to the ...

Measurement system and measurement method

A measurement system for measuring a consumption amount of a focus ring in a plasma etching apparatus including a processing chamber, a lower electrode and the focus ring surrounding a periphery of the lower electrode, comprises a sensor substrate having a distance sensor and a measurement unit configured to measure a consumption amount of the focus ring. The measurement unit includes a transfer instruction unit, an acquisition unit and a measurement unit. The transfer instruction unit is configured to instruct a transfer unit to transfer the sensor substrate into the processing chamber. The acquisition unit is configured to acquire information on a physical amount corresponding to a distance from the distance sensor to the focus ring, which is measured by the distance sensor. The measurement unit is configured to measure a consumption amount of the focus ring based on the acquired information on the physical amount.

INTELLIGENT MOTOR BRAKE FOR A LENGTH/ANGLE SENSOR OF A CRANE

The invention relates to a length sensor, in particular a length/angle sensor () of a crane (), having a rewinding system and having a reel and a cable that is wound onto the reel and can be unwound from the reel in order to detect a length, characterized in that the rewinding system comprises a controllable electric motor.

MAGNETOSTRICTIVE PROBE WITH INVERTED SIGNAL DETECTION

The present discloses an alternate construction and method for a magnetostrictive probe intended to be used as a tank monitoring device. Height determination, either water or fuel, is referenced to an ultrasonic pickup assembly located inside the shaft at the foot of the probe. With this inverse approach, height measurement takes advantage of the relative geothermal stability of underground storage tanks, or the temperature stability offered by the thermal mass of the fuel, to facilitate a more accurate tank level determination. At that new location, the detection circuit gains the added benefits of being isolated from the effect of magnetic risers, large temperature swings and other undesirable phenomenon that often affect magnetostrictive probe measurements that are referenced to the canister. Aside from its primary use as referred to by this disclosure, this probe could be adapted for any application necessitating precise knowledge of height or distance measurement in relation to the foot of the probe without using a reference magnet. 1. A magnetostrictive probe adapted to monitor liquid level comprising:An ultrasonic pulse signal detection assembly apparatus situated at the foot of the probe,a wire tensioning assembly system located in line with the waveguide inside the canister located at the top of the probe,a bottom compression assembly located inside the tube,a sealed tube containing a ferromagnetic wire which is placed vertically in the liquid container so as to approximately reach the bottom of said container, and extend above the fill level of said container,a float for each type of liquid to be measured, whether one liquid or two or more liquids which are separated due to density differences,a magnet in each of said float(s) which interacts with magnetic fields generated in said magnetostrictive wire by current pulses so as to generate ultrasonic waves that travel in both directions along said wire,a circuit which convers said wire signal to digital ...

Method and Device for Ascertaining a Positional Deviation of a Rotational Body

The invention relates to a method and an apparatus for simultaneously ascertaining surface parallelism, axial perpendicularity and rotational surface runout of a rotational surface capable of rotating about a rotation axis relative to a reference surface. According to the invention, at least three distance sensors are provided which are stationary with respect to the reference surface and which have a measuring direction perpendicular to the reference surface and in the direction of the flat face of the rotational body. The distance sensors transmit distances ascertained during the rotation of the rotational body to an evaluation device, wherein an axial perpendicularity, a rotational surface runout of the rotational body and a surface parallelism can be ascertained from said distances. Prior to measuring the rotational surface runout, the angular deviation of the rotational surface is first ascertained. 1301130202222302022223030403030. A method for ascertaining a positional deviation of a rotational body () capable of rotating about a rotation axis relative to a reference surface () , said rotational body comprising at least one first flat face , characterized by simultaneously ascertaining at least axial perpendicularity and rotational surface runout of the first flat face of the rotational body () , wherein at least two distance sensors ( , , ′) that are stationary with respect to the reference surface perform measurements perpendicular to and in the direction of the first flat face of the rotational body () , wherein the distance sensors ( , , ′) transmit distances from the first flat face of the rotational body () ascertained at different points during rotation of the rotational body () to an evaluation device () , wherein , based on the distances and taking into account the rotation angle of the rotational body () , an axial perpendicularity and a rotational surface runout of the rotational body () can be ascertained in the evaluation device.2243030. The ...

CAPACITIVE MEASUREMENT DEVICE

A capacitive measurement device for indicating when two surfaces moving relative to each other are spaced less than a predetermined distance apart. The device comprises a probe having an elongated conductor, an insulating core, a conducting inner guard, an insulating interlayer, and a conducting sheath. A portion of the conductor, insulating core and conducting inner guard form a probe tip which extends beyond the insulating interlayer and conducting sheath by a predetermined offset. The probe is configured to extend from a first surface by a predetermined distance and to generate a signal when the tip is contacted by a second surface. 1. A capacitive measurement device for indicating when two surfaces moving relative to each other are spaced less than a predetermined distance , said device comprising: an elongated conductor;', 'an insulating core radially encasing at least a portion of said conductor;', 'a conducting inner guard radially encasing at least a portion of said insulating core;', 'an insulating interlayer radially encasing at least a portion of said conducting inner guard; and', 'a conducting sheath radially encasing at least a portion of said insulating interlayer,, 'at least one probe comprisingwherein a portion of said conductor, insulating core and conducting inner guard form a probe tip, said probe tip being carried by a first surface and extending a first predetermined distance from the first surface,wherein said probe is configured to generate a signal when said tip is contacted by a second surface moving relative to said probe tip to thereby indicate that the first and second surfaces are spaced less than the predetermined distance.2. The device of wherein said first surface is stationary relative to a third surface and said second surface is moving relative to said first surface.3. The device of wherein said second surface is stationary relative to a third surface and said first surface is moving relative to said second surface.4. The device of ...

CAPACITANCE MEASURING AND IMAGING SENSOR SYSTEM

Embodiments disclosed herein provide methods, apparatus and computer systems comprising an input unit for inputting one or more data sets to be processed comprising a capacitance measuring device configured to measure one or more conductive elements on a sensor plane and provide a corresponding data set of measurements obtained from the conductive elements. A computing unit is coupled to the input unit and for processing the data sets; the computing unit comprises at least one processor with non-transient memory. An output unit is connected to the computing unit for outputting data received from the computing unit. A computer program stored in memory comprising instructions that cause the computer to isolate and discharge conductive and reference impedance elements, perform a charge transfer to the one or more conductive elements on the sensor plane, measure the relative difference between the conductive elements and reference impedance element, and store measurements in non-transient memory. 1. A computer system , comprising: measure one or more conductive elements on a sensor plane; and', 'provide a corresponding data set comprising measurements obtained from the conductive elements;, 'an input unit for inputting one or more data sets to be processed, wherein the input unit comprises a capacitance measuring device configured toa computing unit coupled to the input unit and for processing the one or more data sets, wherein the computing unit comprises at least one processor and a non-transient memory; andan output unit coupled to the computing unit and for outputting data received from the computing unit,a computer program stored by the non-transient memory comprising instructions, when executed by the at least one processor, cause the computer to perform at least the following:isolate and discharge conductive and reference impedance elements;perform a charge transfer to the one or more conductive elements on the sensor plane;measure the relative difference between ...

Magnetic Field Sensor and Related Techniques That Provide an Angle Correction Module

A magnetic field sensor can use a variety of different current spinning phase sequences, and/or can provide an angle error value to correct errors of the magnetic field sensor. An associated method is described. 1. A magnetic field sensor , comprising:a plurality of magnetic field sensing elements, wherein each one of the plurality of magnetic field sensing elements is configured to generate a respective x-y output signal responsive to a magnetic field in an x-y plane;an angle processing circuit coupled to receive the x-y output signals and configured to generate an uncorrected x-y angle value representative of an angle of the magnetic field in an x-y plane, wherein the uncorrected x-y angle value comprises a first angle error component; andan angle error correction module coupled to the angle processing circuit and configured to generate an x-y angle value indicative of an error in the uncorrected x-y angle value; anda combining module configured to combine the uncorrected x-y angle value with the x-y angle error value to generate a corrected x-y angle value having a second angle error component smaller than the first angle error component.2. The magnetic field sensor of claim 1 , further comprising:a coefficient table memory configured to store a plurality of correction coefficients, associated with respective boundaries of a plurality of temperature segments, each temperature segment bounded by a pair of temperatures; and a segment identification module coupled to receive a temperature value representative of the temperature signal and configured to identify a temperature segment in which the temperature value falls;', 'an interpolation module coupled to receive a plurality of the correction coefficients associated with the identified temperature segment, coupled to receive the temperature value, and configured to interpolate between pairs of the correction coefficients in accordance with the temperature value to generate a plurality of interpolated correction ...

Magnetic Field Sensor and Related Techniques That Provide Varying Current Spinning Phase Sequences of a Magnetic Field Sensing Element

A magnetic field sensor can use a variety of different current spinning phase sequences, and/or can provide an angle error value to correct errors of the magnetic field sensor. An associated method is described. 1. A method of reducing an error in a magnetic field sensor , comprising:providing a plurality of magnetic field sensing elements, wherein each one of the plurality of magnetic field sensing elements is configured to generate a respective x-y output signal responsive to a magnetic field in an x-y plane;sequentially selecting, at an element selection rate with art element selection period, from among the plurality of magnetic field sensing elements, resulting in a plurality of repeating cycles of selected magnetic field sensing elements, each repeating cycle sequentially selecting all of the plurality of magnetic field sensing elements, wherein the repeating cycles repeat at a cycle repetition rate with a cycle repetition period; andcurrent spinning, within respective element selection periods, each selected one of the plurality of magnetic field sensing elements, wherein the current spinning comprises generating a respective plurality of current spinning phases within the respective element selection periods, each plurality of current spinning phases within an element selection period having a respective phase sequence with a plurality of phases, each phase having a phase period, each phase period less than an element selection period, wherein the sequentially selecting and the current spinning together result in a sequenced-chopped signal representative of an angle of the magnetic field, wherein a first set of the plurality of magnetic field sensing elements has a first current spinning phase sequence within one of the cycle repetition periods, and a second different set of the plurality of magnetic field sensing elements has a second different current spinning phase sequence within the same one of the cycle repetition periods.2. The method of claim 1 , ...

Object detection system, object detection method, and non-transitory computer-readable medium storing object detection program

An object detection system includes a reader waveguide ( 101 ) formed as an open transmission line, an RFID tag ( 102 ) placed above the reader waveguide ( 101 ), a signal strength acquisition unit ( 103 ) that acquires signal strength of a read signal read from the RFID tag ( 102 ) by electromagnetic coupling through the reader waveguide ( 101 ), and an object detection unit ( 104 ) that detects physical characteristics of an object ( 105 ) corresponding to the acquired signal strength based on a relationship between a plurality of (three or more values of) signal strength of the read signal and physical characteristics of the object to be detected.

DETERMINING ELECTRICAL PATH LENGTH

An example process for determining electrical path lengths includes: injecting current into a transmission line having a known capacitance per unit of length; determining a rate of change in voltage on the transmission line in response to the current; determining a capacitance of the transmission line based on the change in voltage; and determining an electrical path length of the transmission line based on the determined capacitance of the transmission line and the known capacitance per unit of length. 1. A method comprising:injecting current into a transmission line having a known capacitance per unit of length;determining a rate of change in voltage on the transmission line in response to the current;determining a capacitance of the transmission line based on the change in voltage; anddetermining an electrical path length of the transmission line based on the determined capacitance of the transmission line and the known capacitance per unit of length.2. The method of claim 1 , further comprising:performing signal alignment based on the electrical path length.3. The method of claim 2 , wherein performing signal alignment comprises controlling signal output to the transmission line and one or more other transmission lines so that rising and/or falling edges of signals on the transmission line and one or more other transmission lines occur at a same time or within a specified interval at outputs of the transmission line and the one or more other transmission lines.4. The method of claim 1 , wherein the transmission line comprises a signal path between a test instrument and a device under test.5. The method of claim 1 , wherein the signal path is on a device interface board that is configured to connect the test instrument to the device under test.6. The method of claim 1 , wherein the electrical path length is less than a rise time of a signal for which alignment is performed.7. The method of claim 1 , further comprising:detecting a characteristic of the ...

COMBINATION SENSOR

An assembly for automatically detecting contactlessly elongate objects (W). The assembly comprises an inductive measuring system (E) and a first optical measuring system (D) for the object (W) within a housing (). The inductive measuring system (E) is an eddy current sensor for determining an electromagnetic characteristic of the object (W) and has half coils (E, E) which wind around the object (W) and forms an inductive cylindrical measurement volume (Ev). The half coils (E, E), together with a capacitor (E), form a parallel oscillating circuit (E), which is connected to an electronic evaluating circuit (E). The first optical measuring system (D) determines the outside diameter (Wdo) of the object (W) and an optical disk-shaped measurement volume (DCPv) is formed between the two half coils (E, E). Optionally, the assembly, by a second optical measuring system (C), determines the color and the position by a third virtual measuring system (P). 12. An arrangement for automatic contactless detection of elongate objects (W) , comprising at least one inductive measuring system (E) and at least one first optical measuring system (D) for the object (W) in a common housing () ,{'b': 1', '1, 'i': a', 'b, 'wherein the inductive measuring system (E) is designed as an eddy current sensor for determining an electromagnetic characteristic of the object (W) and comprises two series-connected, coaxial half-coils (E, E) which are oriented in a same direction, which have a distance from one another in an axial direction, which wind around the object (W) coaxially to a longitudinal axis (x), so that an interior thereof defines an inductive cylindrical measurement volume (Ev),'}{'b': 1', '1', '2', '6', '5, 'i': a', 'b, 'the half-coils (E, E) together with an electrically parallel connected capacitor (E) form a parallel resonant circuit (E) used as inductive sensor of the inductive measuring system (E), which is connected to an electronic evaluation circuit (E), and at least one first ...

Low cost precision displacement sensor

This invention describes a small sized precision displacement sensor at sub-micron accuracy level with a cost of a fraction of those of existing commercial devices. The basic concept of the new sensor system is to apply a mechanical mechanism to magnify a sub-micron displacement to be measured by about 100 times so that the magnified displacement becomes within the measurement range of a low cost sensor such as a Hall sensor.

Heat Control Method and Device

A heat control method and device are provided. In the method, a distance or distances between one or more regions of a terminal and a predetermined detection object may be detected (S); heat insulation processing may be performed in a first region of the terminal, where the first region may be a region of which the distance to the predetermined detection object is smaller than a first predetermined threshold; and/or, heat dissipation processing may be performed in a second region of the terminal, where the second region may be a region of which the distance to the predetermined detection object is larger than a second predetermined threshold (S). 1. A heat control method , comprising:detecting a distance or distances between one or more regions of a terminal and a predetermined detection object;further comprising:performing heat insulation processing in a first region of the terminal, wherein the distance between the predetermined detection object and the first region is smaller than a first predetermined threshold; and/or,performing heat dissipation processing in a second region of the terminal, wherein the distance between the predetermined detection object and the second region is larger than a second predetermined threshold.2. The method as claimed in claim 1 , wherein performing heat insulation processing in the first region of the terminal comprises:{'b': '6', 'performing stepped heat insulation processing in the first region according to distances to the predetermined detection object.'}3. The method as claimed in claim 2 , wherein performing stepped heat insulation processing in the first region according to the distances to the predetermined detection object comprises:performing stepped heat insulation processing in a manner of respectively controlling each grid sub-block in the first region, wherein the first region comprises a predetermined number of grid sub-blocks, and electrodes configured to control heat are arranged in the grid sub-blocks.4. The ...

ROLLABLE DISPLAY PANEL AND ROLLABLE DISPLAY DEVICE HAVING THE SAME

A rollable display panel and a rollable display device, the rollable display panel including a display region configured to display an image; a non-display region surrounding the display region; and a resistor sensor in the non-display region including sensing material of which resistance values are different by location, wherein the resistor sensor outputs a sensing signal that is regularly changed proportional to a rolling length of the rollable display panel, and a sensor driver that determines a driving region of the rollable display panel based on the sensing signal. 1. A display device , comprising:a rollable display panel including a display region and a non-display region adjacent to the display region;a sensor in the non-display region, wherein the sensor outputs a sensing signal which is changed according to rolling degree of the rollable display panel; anda sensor driver that determines a driving region of the rollable display panel based on the sensing signal.2. The display device as claimed in claim 1 , wherein the sensing signal is changed proportional to the rolling degree of the rollable display panel.3. The display device as claimed in claim 1 , wherein the sensor includes a sensing pattern claim 1 ,the sensing signal is a resistance value of the sensing pattern, andthe resistance value changes according to a pressure applied thereto.4. The display device as claimed in claim 3 , wherein the sensor further includes a first electrode and a second electrode coupled to ends of the sensing pattern.5. The display device as claimed in claim 3 , wherein width or thickness of the sensing pattern varies according to a location along a length direction of the sensor.6. The display device as claimed in claim 3 , wherein the resistance value of the sensing pattern of the sensor decreases as a curvature of the rollable display panel increases.7. The display device as claimed in claim 1 , wherein the sensor driver comprises:a voltage provider configured to provide ...

METHOD AND SYSTEM OF CHECKING SIGNAL OF ADJACENT LAYERS OF CIRCUIT BOARD

A method and a system of checking signals of adjacent layers of a circuit board are disclosed, where the method includes steps as follows. A check range of at least one check signal segment is required. It is determined whether the adjacent layers have an another signal segment in check range. When the adjacent layers have said another signal segment, the check signal segment and said another signal segment are merged to get a remaining area of the check range. The total area of the check range minus the remaining area leaves a segment area in the check range. The segment area divided by a default width determines a segment length. It is determined whether the segment length meets a predetermined length requirement. 1. A method of checking signals of adjacent layers of a circuit board , comprising steps of:acquiring a check range of at least one check signal segment;determining whether the adjacent layers have another signal segment in check range;when the adjacent layers have said another signal segment, merging the check signal segment and said another signal segment to get a remaining area of the check range;leaving a segment area in the check range by a total area of the check range minus the remaining area;dividing the segment area in the check range by a default line width to determine a segment length; anddetermining whether the segment length in the check range meets a predetermined length requirement.2. The method of claim 1 , wherein the step of acquiring the check range of the at least one check signal segment comprises:based on a checking signal data, acquiring starting and ending coordinates of the check signal segment; andestablishing the check range of the check signal segment by using the starting and ending coordinates of the check signal segment with a predetermined distance.3. The method of claim 1 , further comprising:when the adjacent layers have a plurality of said another signal segments, acquiring a plurality of the segment areas, adding two ...

CLAMP-TYPE MEASURING DEVICE AND MEASURING METHOD

The disclosure is related to a clamp-type measuring device includes a clamp and an interval measuring module. The clamp includes a guiding rail and two holding arm. Each of holding arms includes a guide part, a connecting part, and a clamping part. The guide part is movably furnished on the guiding rail. Both ends of the connecting part are respectively connected to the guide part and the clamping part. The interval measuring module includes a first measuring element and a second measuring element. The first measuring element and the second measuring element are furnished on the two connecting parts respectively. The first measuring element and the second measuring element are slidable through the two guide parts respectively in order to measure an interval between the two clamping parts. In addition, the disclosure is also related to a measuring method of the clamp-type measuring device. 1. A clamp-type measuring device , adapted to clamp and measure a workpiece , comprising: a guiding rail; and', 'two holding arms, each of them further comprising a guide part, a connecting part and a clamping part; both ends of the connecting part are connected respectively to the guide part and the clamping part where the guide part is movably furnished at the guiding rail; and the two clamping parts are used to clamp the workpiece; and, 'a clamp, further comprising a first measuring element furnished at one of the connecting parts; and', 'a second measuring element furnished at the other connecting part;, 'an interval measuring module, further comprisingwherein, the first measuring element and the second measuring element are slidable with respect to the guiding rail through the two guide parts respectively, such that the first measuring element and the second measuring element are movably closing to or away from each other in order to measure an interval between the two clamping parts according to an interval between the first measuring element and the second measuring element. ...

PRECISION-POSITIONING DRIVE PRE-TIGHTENING DEVICE

Disclosed is a precision-positioning drive end pre-tightening device, which comprises a positioning platform (), an actuator (), a capacitive sensor (), a capacitive sensor bracket (), a pre-tightening block () and a film force sensor (), wherein a sliding groove is provided in the middle of the positioning platform (), and said pre-tightening block (), said film force sensor () and said actuator () are provided in the sliding groove in sequence; the capacitive sensor bracket () is fixed on the positioning platform (), and three connecting rods (-) which are connected in sequence via compliant hinges are axially provided at one end of the bracket body of the capacitive sensor bracket (); an end surface of the capacitive sensor () and an upper side surface of the pre-tightening block () are parallel to each other, and a gap exists therebetween; and a two-stage pre-tightening device for pre-tightening the pre-tightening block () are also provided on the positioning platform (). The technical means of the device is simple and easy, and the device can satisfy the requirements in related fields of precision positioning, precision and ultra-precision machining, precision operating, precision measurement, micro-electro-mechanical system, etc. for the precision-locating drive end pre-tightening device. 1. A precision-positioning drive end pre-tightening device , characterized in that the device comprises a positioning platform , an actuator , a capacitive sensor , a capacitive sensor bracket , a pre-tightening block , a film force sensor;a sliding groove is provided in the middle of said positioning platform, and said pre-tightening block, said film force sensor and said actuator are provided in the sliding groove in sequence;said capacitive sensor bracket is fixed on the positioning platform, a middle part of the capacitive sensor bracket is opposite to the pre-tightening block; an axis of the capacitive sensor bracket and the axial direction of the sliding groove are ...

Distance measurement sensor based on magnetic signal triangulation

The subject invention reveals a distance measuring device comprising: a sensing module, a target module, and an evaluating module, wherein the sensing module and the target module are mountable so as to execute a movement with respect to each other along a movement trajectory, wherein the target module comprises a magnetic field generating element having a magnetic pole axis, wherein the sensing module comprises a first magnetic field sensing array being arranged distant to the movement trajectory. The sensing module and the target module can advantageously be situated within the pressurizable chamber of an air spring which is defined by (contained within) a first mounting plate, a second mounting plate, and a flexible member of the air spring.

METHOD FOR LOCATING MOBILE MAGNETIC OBJECTS PRESENTED BEFORE A NETWORK OF MAGNETOMETERS

A method for locating mobile objects by identifying, on the basis of the objects before a network of magnetometers, a supplementary equation. The method includes connecting, by means of a relationship of equality, a first variable from a current system of equations to a term, the term being a predefined relationship between one or more other variables from the current system of equations or a constant numerical value. The method also includes replacing, in the current system of equations, the first variable with the term to which it is equal to obtain a new system of equations in which the number of variables for which the value needs to be estimated is smaller than in the current system of equations. The method further includes using the new system of equations instead in order to estimate the position/orientation/amplitude of a magnetic moment of one of the magnetic objects. 2. The method according to claim 1 , in which the identification of the supplementary equation is performed as a function of the estimated values claim 1 , from a previous iteration of steps a) and b) claim 1 , of the variables.3. The method according to claim 2 , in which the identification of the supplementary equation comprises:the calculation of a magnitude that is representative of the amplitude of the variations in the first variable in the course of previous iterations of steps a) and b) on the basis of the values of said first variable, which is estimated in the course of said previous iterations of steps a) and b),the comparison of said calculated magnitude with a predetermined threshold in order to establish whether said first variable has varied in the course of said previous iterations of steps a) and b), andif said predetermined threshold is crossed, the establishment of a new supplementary equation connecting, by means of a relationship of equality, the value of said first variable to a constant value, the constant value being a function of at least one value of said first ...

Instrument For Measuring Length, And Method And Device For Controlling The Size Of A Fuel Rod

The invention relates, in particular, to an instrument for measuring length, comprising an inductive sensor comprising an elongate body and a tip that is movable along a longitudinal axis. The body contains windings and defines a first cavity receiving a magnetic core. The instrument further comprises a casing which extends the body along the longitudinal axis, and which defines, together with the body, a second sealed cavity containing the tip. The capacity of the casing to resiliently deform along the longitudinal axis is greater than the capacity of said casing to resiliently deform along axes that are orthogonal to said longitudinal axis. 1101114171541314151416171817. A length measurement instrument () comprising an inductive sensor () comprising an elongate body () having a longitudinal axis and a feeler tip () movable along the longitudinal axis () of the sensor , in which the body () contains windings and defines a first cavity receiving a magnetic core , the instrument further comprising a casing () extending the body () along the longitudinal axis () and co-operating with the body () to define a second cavity () that is leaktight and that contains the feeler tip () , the casing comprising a watertight deformable part () surrounding the feeler tip () and{'b': 19', '17', '15, 'an abutment portion () extending in line with the feeler tip () and wherein the capacity of the casing for elastic deformation along the longitudinal axis () is greater than the capacity of the casing for elastic deformation along axes orthogonal to the longitudinal axis; and'}{'b': 17', '19', '19, 'the capacity of the casing for elastic deformation along the longitudinal axis is sufficient for the feeler tip () to be sensitive to movement of the abutment portion () under the effect of an abutment force exerted on the abutment portion ().'}2. (canceled)319171917. An instrument according to claim 1 , wherein the abutment portion () is spaced apart from the feeler tip () of the inductive ...

CHAIN ELONGATION MONITORING DEVICE AND METHOD FOR DETERMINING WEAR

The invention relates to a chain elongation monitoring device having a first differential transformer, a second differential transformer, and a control for recording the measured values, wherein the second differential transformer is arranged at a fixed distance from the first differential transformer, and a method for operating the chain elongation monitoring device. 211100. A method () for determining the elongation of segments of a chain () during operation , which has the following steps:{'b': '210', 'detecting a first signal from a first differential transformer ()'}{'b': '100', 'determining the position of a first chain component of a chain () from the first signal'}{'b': '220', 'detecting a second signal from a second differential transformer ()'}{'b': '100', 'determining the position of a second chain component of a chain () from the second signal'}determining the distance between the first and the second chain component Benefit is claimed to German patent application No. 10 2021 107 898.9, filed on Mar. 29, 2021, the contents of which are incorporated by reference herein in their entirety.The invention relates to a chain elongation monitoring device having a first differential transformer, a second differential transformer, and a control for recording the measured values, as well as a method for operating the chain elongation monitoring device.Chain drives are used in a variety of industrial applications for drive or transport purposes. Multiple strands of chain are often used. In addition to a typically endlessly circulating chain, a complete chain drive includes multiple sprockets that are used to deflect the chain, as well as drive or transport elements that are connected to the chain and are actuated by the chain. A chain is subject to wear during operation due to the abrasion of parts in the chain link that are movable in relation to one another. Further factors, such as elongation during running in of the chain, stretching, bearing play, and bearing ...

FULLY INTEGRAL EPOXY CAP PROBE

A fully integral epoxy cap probe may comprise a body having a cavity disposed radially outward of a fan blade and comprising a first material, a frame disposed within the cavity and comprising a second material, a first sensor element and a ground plane disposed within the frame, the first sensor element and the ground plane comprising a third material, and a first soft lead in electronic communication with the first sensor element and the ground plane. 1. A fully integral epoxy cap probe , comprising:a body having a cavity disposed radially outward of a fan blade and comprising a first material;a frame disposed within the cavity and comprising a second material;a first sensor element and a ground plane disposed within the frame, the first sensor element and the ground plane comprising a third material; anda first soft lead in electronic communication with the first sensor element and the ground plane,wherein the second material and the third material are at least one of a resin, epoxy, and/or thermoset material.2. The fully integral epoxy cap probe of claim 1 , wherein the first material comprises at least one of a composite claim 1 , a resin claim 1 , epoxy claim 1 , and/or thermoset material.3. The fully integral epoxy cap probe of claim 2 , wherein the second material comprises at least one of a hydrophobic dielectric resin claim 2 , epoxy claim 2 , and/or thermoset material comprising bisphenol AF diglycidyl ether having fluorinated methyl groups.4. The fully integral epoxy cap probe of claim 3 , wherein the third material comprises at least one of a hydrophobic conductive resin claim 3 , epoxy claim 3 , and/or thermoset material comprising bisphenol AF diglycidyl ether having fluorinated methyl groups.5. The fully integral epoxy cap probe of claim 4 , wherein the body comprises a first passage wherein the first soft lead is disposed within the first passage.6. The fully integral epoxy cap probe of claim 5 , wherein the frame comprises a first channel aligned ...

System for inspecting, fixing, or screening ammunition

A system for inspecting, fixing, or screening ammunition comprises an ammunition conveying track, a plurality of ammunition trays arranged on an outer surface of the ammunition conveying track, an ammunition inspector disposed at right and left sides of the ammunition conveying track, an ammunition fixer disposed downstream of the ammunition inspector at right and left sides of the ammunition conveying track, and an ammunition discharger disposed at an end point of the upper portion of the ammunition conveying track, ammunition cartridges being sequentially discharged through the ammunition fixer and the ammunition discharger, wherein at least one of the ammunition inspector and the ammunition fixer includes ammunition-shaped chambers and actuators, wherein the ammunition cartridges placed on the ammunition trays are moved horizontally and inserted into the chambers, and wherein the actuators horizontally move the ammunition cartridges inserted in the chambers back to the ammunition trays.

EDDY CURRENT JOINT SENSOR

A joint sensing system within an enclosure can include an electrical circuit through which a first current flows, where the first current creates a magnetic field, where the electrical circuit is disposed proximate to a joint of the enclosure. The system can also include a target disposed proximate to the electrical circuit, where the magnetic field induces a plurality of second currents to flow within the target. The system can further include a sensor that measures the plurality of second currents flowing within the target to generate a plurality of measurements. The plurality of measurements can indicate a width of the joint of the enclosure. 1. A joint sensing system within an enclosure , the system comprising:an electrical circuit through which a first current flows, wherein the first current creates a magnetic field, wherein the electrical circuit is disposed proximate to a joint of the enclosure;a target disposed proximate to the electrical circuit, wherein the magnetic field induces a plurality of second currents to flow within the target; anda sensor that measures the plurality of second currents flowing within the target to generate a plurality of measurements,wherein the plurality of measurements indicates a width of the joint of the enclosure.2. The system of claim 1 , wherein the target forms claim 1 , at least in part claim 1 , the joint of the enclosure.3. The system of claim 2 , wherein the joint is non-uniform along an outer surface of the target that forms the joint.4. The system of claim 2 , wherein the target is a portion of a body of the enclosure.5. The system of claim 2 , wherein the target is a portion of a cover of the enclosure.6. The system of claim 1 , further comprising:an additional electrical circuit disposed proximate to the joint and through which a third current flows, wherein the third current creates an additional magnetic field;an additional target disposed proximate to the additional electrical circuit, wherein the additional ...

APPARATUSES AND METHODS FOR MEASURING A CLEARANCE

The present disclosure provides an apparatus and method for measuring a clearance. The apparatus comprises: a first measurement component configured to be mounted on a first object in a mounted state thereof, so that a first measurement surface of the first measurement component is aligned with a first surface to be measured of the first object; and a second measurement component configured to be mounted on a second object in a mounted state thereof, so that a second measurement surface of the second measurement component is aligned with a second surface to be measured of the second object, wherein the first measurement component comprises a measurement instrument configured to measure a first distance between the measurement instrument and the first measurement surface and a second distance between the measurement instrument and the second measurement surface, wherein the clearance is calculated based on the first distance and the second distance. 1. An apparatus for measuring a clearance defined by a first surface to be measured of a first object and a second surface to be measured of a second object , the apparatus comprising:a first measurement component configured to be mounted on the first object in a mounted state thereof, so that a first measurement surface of the first measurement component is aligned with the first surface to be measured of the first object; anda second measurement component configured to be mounted on the second object in a mounted state thereof, so that a second measurement surface of the second measurement component is aligned with the second surface to be measured of the second object,wherein the first measurement component comprises a measurement instrument configured to measure a first distance between the measurement instrument itself and the first measurement surface of the first measurement component and a second distance between the measurement instrument itself and the second measurement surface of the second measurement ...

METHOD FOR OBTAINING A HEIGHT OF A MATERIAL STACKED IN A COKE OVEN

A method for obtaining a parameter representative of a height (H) of an upper surface of a material stacked in a coke oven with respect to a reference plane (P) is provided. The method includes the following steps: 114-. (canceled)15. A method for obtaining a parameter representative of a height of an upper surface of a material stacked in a coke oven with respect to a reference plane , comprising the following steps:providing a sensor located above the upper surface at an operation distance from the reference plane, the sensor and the material forming a capacitor having a capacitance,obtaining at least one capacitance signal representative of said capacitance,obtaining at least one distance signal using the capacitance signal, the distance signal being representative of a distance between the sensor and the upper surface along a vertical direction, andobtaining said parameter representative of the height using the distance signal and the operation distance.16. The method according to claim 15 , further comprising:measuring a parameter representative of a temperature of the sensor, andcorrecting the capacitance signal provided by the sensor in function of said parameter in order to produce the distance signal.17. The method according to claim 15 , wherein obtaining the capacitance signal includes selecting the operation distance so that the distance between the sensor and the upper surface ranges between 0 cm and 60 cm.18. The method according to claim 15 , further comprising:moving the sensor within the coke oven in a plurality of successive locations with respect to the upper surface,obtaining a plurality of distance signals, each of the distance signals being obtained in one of the successive locations, andobtaining a profile of the upper surface using the plurality of distance signals.19. The method according to claim 18 , further comprising a step of calculating a filling rate of the coke oven using the obtained profile claim 18 , wherein the filling rate is ...

Position-encoding device and method

A position-encoding device includes a sensing device, a filtering device, a calibrating device and a compensating device. The sensing device senses the motion of a moving device to generate first and second signals. The filtering device filters the first and second signals to generate first and second filtering signal. The calibrating device captures the first and second filtering signals to obtain time and phase information of the first and second filtering signals, performs gain and offset calibration on the first and second filtering signals, and performs a phase calibration on the first and second filtering signals through first, second feedback signals and the time and phase information of the first and second filtering signals to generate first and second calibrating signals. The compensating device compensates for the first and second calibrating signals according to a lookup table, so as to generate first and second position encoding signals.

Size Detection

A capacitance sensor may be positioned to detect size changes in objects. The sensor may be constructed with to use mutual capacitance or self-capacitance to detect the size changes.

Measurement device

A measurement device includes a movable member 1, an angle-detection unit 2 and a rotary unit 3. The rotary unit 3 has a shaft 31, a roller 32 and a magnetic disk 33, all of which are connected along a common axis. The outer periphery of the roller 32 rolls along the movable member 1 when the movable member 1 is pulled. There is a gap formed between the angle-detection unit 2 and the magnetic disk 33 which is located corresponding to the center of the angle-detection unit 2 so that the angle-detection unit 2 detects the angular change of the magnetic disk 33 and precisely calculates the distance that the movable member 1 moves.

Flexible Three-Dimensional Sensing Input Device

A device may include a flexible material defining an exterior of a cavity, an interior electrode located within the cavity, a first peripheral electrode peripherally located with respect to the interior electrode on a first side of the interior electrode, a second peripheral electrode peripherally located with respect to the interior electrode on a second side of the interior electrode where the interior electrode is between the first peripheral electrode and the second peripheral electrode, a controller electrically connected to the interior electrode, the first peripheral electrode, and the second peripheral electrode, and programmed instructions written into memory of the controller where the programmed instructions cause the controller, when executed to measure a first capacitance between the first peripheral electrode and the interior electrode and measure a second capacitance between the second peripheral electrode and the interior electrode.