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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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14-11-2013 дата публикации

Pressure Transducer Utilizing Non-Lead Containing Frit

Номер: US20130298700A1
Автор: KURTZ ANTHONY D., Ned Alexander A.
Принадлежит:

A piezoresistive sensor device and a method for making a piezoresistive device are disclosed. The sensor device comprises a silicon wafer having piezoresistive elements and contacts in electrical communication with the elements. The sensor device further comprises a contact glass coupled to the silicon wafer and having apertures aligned with the contacts. The sensor device also comprises a non-conductive frit for mounting the contact glass to a header glass, and a conductive non-lead glass frit disposed in the apertures and in electrical communication with the contacts. The method for making a piezoresistive sensor device, comprises bonding a contact glass to a silicon wafer such that apertures in the glass line up with contacts on the wafer, and filling the apertures with a non-lead glass frit such that the frit is in electrical communication with the contacts. The use of a lead free glass frit prevents catastrophic failure of the piezoresistive sensor and associated transducer in ultra high temperature applications. 1. A leadless sensor , comprising:a sensor device comprising a plurality of electrical contacts;a non-conductive contact cover defining a plurality of apertures, wherein the non-conductive contact cover is bonded to a peripheral rim of the sensor device such that the plurality of apertures align with the plurality of electrical contacts;a conductive, non-lead containing frit disposed within the apertures; anda header assembly attached to the contact cover, opposite the sensor device, via a non-conductive, non-lead containing frit.2. The leadless sensor of claim 1 , wherein the plurality of apertures defined in the contact cover align and electrically communicate with header pins of the header assembly.3. The leadless sensor of claim 1 , wherein the sensor device is upside-down bonded to the contact cover.4. The leadless sensor of claim 1 , wherein the contact cover is electrostatically bonded to the sensor device.5. The leadless sensor of claim 1 , ...

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Номер записи: 1
26-12-2013 дата публикации

FORCE SENSOR INCLUDING SENSOR PLATE WITH LOCAL DIFFERENCES IN STIFFNESS

Номер: US20130340537A1
Автор: Freiwald Florian, JOST Oliver, Müller Markus
Принадлежит:

A force sensor for measuring forces comprises a sensor plate where at least one measuring resistor is arranged whereby deformations of the sensor plate can be detected as a result of forces to be measured. The sensor plate includes at least one local weakened area whereby deformation behavior of the sensor plate is influenced. The weakened area results in bypassing the flux of force in the sensor plate and in concentrating the forces at non-weakened portions of the sensor plate. The at least one measuring resistor is preferably arranged at such non-weakened deforming portion of the sensor plate. The at least one weakened area defines sensor plate portions separated from at least in sections, the sensor plate portions being exposed to opposite forces. The sensor plate can be mounted in a housing with an evaluation circuit, for example, and constitute a force sensor having compact dimensions and high measuring sensitivity. 1. A force sensor for measuring forces comprising:a sensor plate at which at least one measuring resistor is arranged by which deformations of the sensor plate can be detected as a result of forces to be measured,wherein the sensor plate has at least one local weakened area influencing the deformation behavior of the sensor plate.2. The force sensor according to claim 1 , wherein the at least one measuring resistor is arranged at a deforming portion of the sensor plate which is different from the weakened area.3. The force sensor according to claim 1 , wherein by the at least one weakened area sensor plate portions separated from each other at least in sections are interconnected by at least one land operatively connected to the at least one measuring resistor on the sensor plate.4. The force sensor according to claim 3 , wherein the at least one measuring resistor is arranged at and/or adjacent to the land.5. The force sensor according to claim 1 , wherein the weakened area is a plate cut-out and/or a recess in the sensor plate and/or the land is a ...

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Номер записи: 2
09-01-2014 дата публикации

PRESSURE SENSITIVE TRANSDUCER ASSEMBLY AND CONTROL METHOD FOR A SYSTEM INCLUDING SUCH AN ASSEMBLY

Номер: US20140007706A1
Автор: "PrudHomme Pierre-Benoit", Auberger Stephane, Aufrere Etienne, Mahr Christophe
Принадлежит: DELPHI TECHNOLOGIES, INC.

Pressure sensitive transducer assembly that includes a force sensing resistor. The force sensing resistor includes: first and second substrates; at least a first and a second electrically conductive traces on the inner surface of the first substrate including interdigitated fingers defining a sensitive area; and a resistive layer facing the sensitive area. The force sensing resistor includes an auxiliary trace on the inner surface of the first substrate connecting the first trace to the second trace through a constant resistance that is not dependent on the force applied to the substrates. The constant resistance being of a value largely greater than the value of the variable resistance which can be measured indirectly between the fingers when an external force is applied to the substrates. A system and a control method are also proposed. 1. A pressure sensitive transducer assembly that includes a force sensing resistor , said force sensing resistor comprising:a first substrate and a second substrate each having inner surfaces, wherein at least one of the substrates is flexible in order to move towards the other one of the substrates in response to an applied force;electrically conductive traces on the inner surface of at least the first substrate, said electrically conductive traces including a first trace including a first set of fingers interdigitated with a second set of fingers pertaining to a second trace so as to define together a sensitive area responsive to the applied force, the first set of fingers and the second set of fingers being electrically separated from one another on the inner surface of the first substrate;a resistive layer on the inner surface of the second substrate such that the resistive layer is facing the first set of fingers such that, in response to the force being applied to the flexible one of the substrates, the resistive layer contacts and electrically connects fingers of the first set of fingers to fingers of the second set of ...

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Номер записи: 3
09-01-2014 дата публикации

CONTROL PANEL COMPRISING RESISTIVE KEYS AND SPACERS

Номер: US20140007707A1
Автор: Auberger Stephane, Lobstein Roland
Принадлежит: DELPHI TECHNOLOGIES, INC.

Control panel including a cover mounted on a support that is provided with a tactile pressing detection zone in which a force sensor that includes a pressure-sensitive zone is arranged behind a detection zone between the cover and the support so as to produce an electrical control signal when a user applies a determined tactile pressing force to the detection zone. The tactile pressing force is transmitted axially (X) towards the sensitive zone via a spacer made of elastically compressible material interposed between the sensor and the cover. The spacer includes at least one compressible portion that defines a transversal top surface that bears against the cover and a transversal bottom surface that bears against the sensitive zone of the sensor. The top surface has an area smaller than the area of the bottom surface. 1. A control panel comprising:a support;a cover mounted on the support that defines at least one detection zone;{'b': '18', 'a force sensor having a pressure-sensitive zone arranged behind the detection zone between the cover and the support so as to detect the actuation of the control button to produce an electrical control signal when a user applies a determined tactile pressing force to the detection zone, wherein the tactile pressing force is transmitted axially towards the sensitive zone via a spacer made of elastically compressible material interposed between the force sensor and the cover, wherein the spacer is axially compressed between the sensor and the cover in the absence of tactile pressing on the detection zone so that the sensor () is subject to a prestressing force at rest, wherein'}the spacer includes at least one compressible portion that defines a transversal top surface that bears against the cover and a transversal bottom surface that bears against the sensitive zone of the sensor, the top surface having an area smaller than the area of the bottom surface so as to minimize the reaction force applied by the spacer to the cover while ...

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Номер записи: 4
27-03-2014 дата публикации

Pre-Loaded Force Sensors

Номер: US20140083207A1
Автор: Eventoff Franklin N.
Принадлежит: Sensitronics, LLC

Pre-loaded force sensitive input devices, force sensing resistors (FSR), are formed as a multiple membrane assembly that is capable of detecting low intensity pressure inputs and quantifying varying applications of pressure to the sensor surface. Pre-loading the force sensor elements results in controlled amount of force between the two substrates causing a constant state of pre-load and eliminating the low-end or minimal pressure signal noise associated with unloaded sensors. Pre-loading the force sensing resistor sensors also enables the sensor to detect removal of low intensity pressure input such as might occur during theft of light weight articles placed in contact with the pre-loaded force sensor. Using an FSR or FSR Matrix Array will enable any handling of protected retail packaging to be detected and identified. A library of “touches” can be established that will yield cutting, ripping, twisting, etc. making the detection of a theft in progress more accurate. 1. A force sensing assembly comprising:a generally planar first substrate having a conductor surface and an opposing touch surface;a plurality of parallel conductive traces on the conductive surface of the first substrate;an array of conductive patches oriented between adjacent parallel conductive traces and each patch is electrically connected to the conductive traces on the conductive surface of the first substrate;a generally planar second substrate having a conductor surface and an opposing touch surface;a plurality of parallel conductive traces on the conductive surface of the second substrate;an array of conductive patches oriented between adjacent parallel conductive traces and each patch is electrically connected to the conductive traces on the conductive surface of the second substrate;wherein the first substrate and the second substrate are oriented parallel to each other with the conductive surfaces of each substrate in apposition and the plurality of parallel conductive traces on the first ...

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Номер записи: 5
04-01-2018 дата публикации

STRETCHABLE FORCE SENSOR

Номер: US20180003577A1
Автор: Podoloff Robert M.
Принадлежит: Tekscan, Inc.

A force sensor for measuring force and/or pressures disclosed. In some embodiments, the sensor includes first and second layers, each layer having one or more electrodes arranged in a repeating, undulating pattern. Such an undulating pattern may include a serpentine pattern or a repeating v-shaped pattern. When arranged, the one or more electrodes on the first layer are placed in facing relationship and cross the one or more electrodes on the second layer to form a plurality of electrode intersections. When stretched, the one or more electrodes on the first layer move relative to the one or more electrodes on the second layer while creating new electrode intersections. 1. A force sensor comprising:a first layer having one or more electrodes arranged in a repeating, first undulating pattern;a second layer having one or more electrodes arranged in a repeating, second undulating pattern, the one or more electrodes on the second layer being placed in facing relationship with and crossing the one or more electrodes on the first layer to form one or more electrode intersections;wherein, when the sensor is stretched, the one or more electrodes on the first layer move relative to the one or more electrodes on the second layer while creating new electrode intersections.2. The force sensor of claim 1 , wherein:the one or more electrodes on the first layer includes a first electrode and the one or more electrodes on the second layer includes a second electrode;in an unstretched state, the first and second electrodes intersect at a first intersection point;in a stretched state, the first and second electrodes intersect at a second intersection point, the second intersection point being different from the first intersection point.3. The force sensor of claim 1 , wherein the first undulating pattern is the same as the second undulating pattern.4. The force sensor of claim 1 , wherein the first and second undulating patterns are different.5. The force sensor of claim 1 , wherein ...

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Номер записи: 6
17-01-2019 дата публикации

METHOD FOR PRODUCING A SENSOR STRUCTURE AND SENSOR HAVING THE SENSOR STRUCTURE

Номер: US20190016166A1
Автор: DEMUTH Ulrich, Krumbholz Anna Maria
Принадлежит: WIKA Alexander Wiegand SE & CO. KG

A sensor structure and a method for producing the sensor structure. A base material is applied to a transfer support. The transfer support is arranged on a sensor body, and at least parts of the base material are transferred from the transfer support to the sensor body via local energy input. 1. A method for producing a sensor structure , the method comprising:applying a base material to a transfer support;arranging the transfer support on a sensor body; andtransferring at least parts of the base material from the transfer support to the sensor body via a local energy input.2. The method for producing a sensor structure according to claim 1 , wherein the transfer occurs in a pulsed or continuous manner or by melting.3. The method for producing a sensor structure according to claim 1 , further comprising:removing the transfer support after transferring the base material; andconditioning and/or irradiating the sensor structure transferred to the sensor body.4. The method for producing a sensor structure according to claim 3 , wherein the conditioning comprises a heat treatment or resintering.5. The method for producing a sensor structure according to claim 3 , wherein the sensor structure is again partially removed or partially separated by irradiation.6. The method for producing a sensor structure according to claim 1 , further comprising:applying an insulating layer to the sensor body prior to transferring the base material, whose thickness is about 1 to 10 μm.7. The method for producing a sensor structure according to claim 6 , wherein the insulating layer comprises glass or consists of glass.8. The method for producing a sensor structure according to claim 6 , wherein the insulating layer is rough and has a reduced peak height Rfrom 1 to 6 nm and a reduced valley depth Rfrom 1 to 6 nm.9. The method for producing a sensor structure according to claim 1 , wherein the local energy input is effected via irradiation claim 1 , a laser claim 1 , or an electron beam.10. ...

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Номер записи: 7
16-01-2020 дата публикации

PRESSURE SENSOR DEVICE FORMED IN BOARD AND ELECTRONIC DEVICE INCLUDING THE SAME

Номер: US20200018657A1
Автор: Choi Seungbum, KIM Seongjun, KIM Yonghwa, Lim Jaedeok, Sim Hyunwoo, Son Dongil
Принадлежит:

An electronic device for detecting pressure is provided. The electronic device includes a printed circuit board (PCB) including at least one element or circuit pattern for driving the electronic device, at least one electrode pattern formed to detect a pressure in the wiring layer included in the PCB, an elastic member arranged to be at least partially overlapped with the electrode pattern, and a pressure sensor circuit electrically connected to the electrode pattern included in the PCB. The pressure sensor circuit is configured to apply a voltage to the electrode pattern and measure intensity of the pressure based on a change in the voltage applied to the electrode pattern. 1. An electronic device , comprising:a printed circuit board (PCB) comprising at least one element or circuit pattern configured to drive the electronic device;at least one electrode pattern formed to detect pressure in a wiring layer included in the PCB;an elastic member arranged to be at least partially overlapped with the at least one electrode pattern; anda pressure sensor circuit electrically connected to the electrode pattern included in the PCB, apply a voltage to the electrode pattern, and', 'measure intensity of the pressure based on a change in the voltage applied to the electrode pattern., 'wherein the pressure sensor circuit is configured to2. The electronic device of claim 1 , further comprising:another electrode pattern arranged at a position corresponding to the electrode pattern on the elastic member.3. The electronic device of claim 2 ,wherein the PCB includes a flexible printed circuit board (FPCB), andwherein the other electrode pattern is formed using a wiring layer of a position at least partially overlapped with a region of the PCB comprising the electrode pattern.4. The electronic device of claim 3 , wherein the region of the PCB comprising the electrode pattern and a region of the PCB having the other electrode pattern are arranged to face each other in a folded structure ...

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Номер записи: 8
21-01-2021 дата публикации

PRESSURE SENSING DEVICE AND MANUFACTURING METHOD THEREOF

Номер: US20210018381A1
Автор: HSU CHIA-MING, LIN Chun
Принадлежит: MEDX TECHNOLOGY INC.

A pressure sensing device includes a substrate, at least a pressure sensing module, and a packaging layer. The pressure sensing module is arranged at the substrate including a plurality of conductive units, a plurality of pressure sensing blocks and a plurality of buffer units. Each conductive unit has a first electrode and a second electrode. The pressure sensing blocks are respectively arranged at the conductive units. Each pressure sensing block has a circuit structure that electrically connects the first electrode and the second electrode of each corresponding conductive unit. Each buffer unit is arranged between each corresponding conductive unit and each corresponding pressure sensing block comprising a plurality of buffer bumps arranged in an array at the first electrode and the second electrode of each corresponding conductive units. The packaging layer is bonded to the substrate, the conductive units and the pressure sensing blocks. 1. A pressure sensing device adapted to sense pressure and be electrically connected to a processing unit , the pressure sensing device comprising:a substrate; a plurality of conductive units, each of the conductive units having a first electrode and a second electrode spaced apart from each other and arranged at the substrate, a first wire connected to the first electrode for grounding, and a second wire connected to the second electrode and adapted to be electrically connected to the processing unit;', 'a plurality of pressure sensing blocks arranged at the conductive units respectively, each of the pressure sensing blocks having a circuit structure that electrically connects the first electrode and the second electrode of the corresponding each of the conductive units and can produce different resistances at different degrees of pressure; and', 'a plurality of buffer units, each of the buffer units being arranged between the corresponding each of the conductive units and the corresponding each of the pressure sensing blocks, ...

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Номер записи: 9
16-01-2020 дата публикации

PORTABLE STRAIN GAUGE FOR IMPROVED IMPULSE AND PEAK FORCE DETECTION

Номер: US20200018658A1
Автор: Cronin John
Принадлежит:

Systems and methods for evaluating the performance of an athlete using a strain gauge is described. In some embodiments, the measurement system comprises a strain gauge and a central processing device. The strain gauge can include a power source, an inertial measurement unit (“IMU”) comprising a load cell, a microcontroller, and a wireless communication module. The strain gauge can be configured to output strain data at a rate of at least 1 kHz and the central processing device can be configured to receive the strain data transmitted from the wireless communication module. 1. A system for measuring physical exertion comprising: a power source,', 'an inertial measurement unit (“IMU”) comprising a load cell having a resistive circuit supported by a conductive material, wherein the resistive circuit varies its resistance in proportion to an amount of force applied to the conductive material, and wherein the load cell is configured to output strain data at a rate of at least 1 kHz,', 'a microcontroller comprising a processor and a memory for storing instructions and strain data received from the IMU, wherein the microcontroller is coupled to the power source and the processor is configured to execute the instructions stored in the memory, and', 'a wireless communication module coupled to the microcontroller and configured to transmit strain data stored in the memory in real-time; and, 'a strain gauge havinga central processing device configured to receive strain data transmitted from the wireless communication module; convert the strain data into force measurements,', 'store the force measurements into a force event array,', 'detect a force event based on the force measurements of the force event array,', 'determine the length of the force event,', 'determine the max force based on the length of the force event, and', 'determine a rate of force development (“RFD”) based on the max force., 'wherein the central processing device is configured to2. The measurement system ...

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Номер записи: 10
21-01-2021 дата публикации

STRAIN GAUGE AND SENSOR MODULE

Номер: US20210018382A1
Автор: MISAIZU Eiji, OGASA Yosuke, YUGUCHI Akiyo
Принадлежит:

A strain gauge includes a flexible substrate; a functional layer formed of a metal, an alloy, or a metal compound, on one surface of the substrate; a resistor formed of a Cr composite film, on one surface of the functional layer; and an insulating resin layer with which the resistor is coated. 1. A strain gauge comprising:a flexible resin substrate;a functional layer formed of a metal, an alloy, or a metal compound, on one surface of the substrate;{'sub': '2', 'a resistor formed as a film containing Cr, CrN, and CrN, on one surface of the functional layer; and'}an insulating resin layer with which the resistor is coated.2. The strain gauge according to claim 1 , wherein a film thickness of the resistor is between 0.05 μm and 0.5 μm.3. The strain gauge according to claim 1 , wherein a line width of the resistor is between 5 μm and 40 μm.4. The strain gauge according to claim 1 , wherein the functional layer includes a function of promoting crystal growth of the resistor.5. The strain gauge according to claim 1 , wherein the substrate has an expansion coefficient in a range of from 7 ppm/K to 20 ppm/K.6. The strain gauge according to claim 1 , wherein surface unevenness on the one surface of the substrate is 15 nm or less claim 1 , and wherein the resistor has a film thickness of 0.05 μm or more.7. The strain gauge according to claim 1 , further comprising electrodes electrically coupled to the resistor claim 1 , a terminal section extending from a given end portion of the resistor;', 'a first metallic layer formed of copper, a copper alloy, nickel, or a nickel alloy, on or above the terminal section; and', 'a second metallic layer formed of material having greater solder wettability than the first metallic layer, on or above the first metallic layer., 'wherein each electrode includes8. The strain gauge according to claim 1 , further comprising an insulating layer which is formed claim 1 , in a lower layer of the insulating resin layer claim 1 , of material having ...

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Номер записи: 11
21-01-2021 дата публикации

STRAIN GAUGE AND METHOD FOR MANUFACTURE THEREOF

Номер: US20210018383A1
Автор: ASAKAWA Toshiaki, NIWA Shinichi, TAKATA Shintaro, TODA Shinya
Принадлежит:

A strain gauge includes a flexible substrate, and a resistor formed of material containing at least one from among chromium and nickel, on or above the substrate. The resistor includes a first layer that is a lowermost layer; and a second layer that is a surface layer laminated on or: above the first layer. The second layer is a layer having a higher density than the first layer. 1. A strain gauge comprising:a flexible resin substrate;a functional layer formed of a metal, an alloy, or a metal compound, on one surface of the substrate; and{'sub': '2', 'a resistor formed as a film containing Cr, CrN, and CrN, on one surface of the functional layer,'}wherein the resistor includes a first layer that is a lowermost layer; and a second layer that is a surface layer laminated on or above the first layer, andwherein the second layer is a layer haying a higher density than the first layer.2. The strain gauge according to claim I , further comprising one or more other layers between the first layer and the second layer , wherein the density gradually increases from the first layer to the second layer.3. The strain gauge according to claim 1 , wherein one or more lower layers beneath the second layer each have a columnar structure.4. The strain gauge according to claim 3 , wherein a film thickness of the second layer is half or less than half a total thickness of the layers each having the columnar structure.5. The strain gauge according to claim 1 , wherein a main component of the resistor is alpha-chromium.6. The strain gauge according to claim 5 , wherein the resistor includes alpha-chromium at 80% by weight or more.7. (canceled)8. (canceled)9. The strain gauge according to claim 1 , wherein the functional layer includes a function of promoting crystal growth of the resistor.10. The strain gauge according to claim 1 , further comprising an insulating resin layer with which the resistor is coated.11. A method for manufacturing a strain gauge claim 1 , the method comprising: ...

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Номер записи: 12
24-04-2014 дата публикации

NANOSTRUCTURES WITH STRAIN-INDUCED RESISTANCE

Номер: US20140109695A1
Автор: Bao Zhenan, Hellstrom Sondra, Lipomi Darren, Tee Chee-Keong, Vosgueritchian Michael
Принадлежит:

Apparatuses and methods, consistent with embodiments herein, are directed to an apparatus having a stretchable substrate and a plurality of nanostructures. While the plurality of nanostructures are adhered to the stretchable substrate, the stretchable substrate and the nanostructures are stretched and/or operate in a stretched mode in which the nanostructures are characterized by a resistance corresponding to a strain imparted due to the stretching. When the substrate is relaxed or the stretching otherwise lessened, the nanostructures continue to be characterized as a function of the strain and the corresponding resistance, with buckled segments of the nanostructures being adhered along a surface of the substrate. 1. An apparatus comprising:a stretchable substrate;a plurality of nanostructures; a first stretched-substrate mode in which the nanostructures are characterized by a resistance corresponding to a strain in the nanostructures, the strain being imparted due to and as a function of the substrate having been stretched to a first degree; and', 'a second mode in which the substrate is no longer stretched to the first degree and in which the nanostructures continue to be characterized as a function of the strain and the corresponding resistance and by the nanostructures having peak regions of buckled segments being adhered along a surface of the stretchable substrate., 'while the nanostructures are adhered to the stretchable substrate, the stretchable substrate and the nanostructures are configured and arranged to be in'}2. The apparatus of claim 1 , wherein the nanostructures include at least one type of nanostructure.3. The apparatus of claim 1 , whereinthe nanostructures are configured and arranged with a resistance that is set by a degree of the strain imparted to the nanostructures in the stretched substrate mode, andin the second mode, the nanostructures are configured and arranged to exhibit a resistance that varies less than about 25% from the resistance ...

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Номер записи: 13
04-02-2021 дата публикации

SENSOR CHIP AND FORCE SENSOR DEVICE

Номер: US20210033475A1
Автор: Yamaguchi Shinya
Принадлежит:

A sensor chip includes a substrate, first supporting portions, a second supporting portion around which the first support portions are disposed, the second supporting portion being disposed at a center of the substrate, first detecting beams each connecting the first supporting portions, which are mutually adjacent, second detecting beams disposed in parallel with the first detecting beams between the first detecting beams and the second supporting portion, force points disposed in the first detecting beams so as to be applied with force, and a plurality of strain detecting elements disposed a predetermined positions of the first detecting beams and the second detecting beams, wherein the plurality of strain detecting elements includes a first detecting portion having a strain detecting element capable of detecting force in a first direction, and a second detecting portion having a strain detecting element disposed at a position symmetric relative to the first detecting portion. 1. A sensor chip comprising:a substrate;first supporting portions;a second supporting portion around which the first support portions are disposed, the second supporting portion being disposed at a center of the substrate;first detecting beams each connecting the first supporting portions, which are mutually adjacent;second detecting beams disposed in parallel with the first detecting beams between the first detecting beams and the second supporting portion;force points disposed in the first detecting beams so as to be applied with force; anda plurality of strain detecting elements disposed a predetermined positions of the first detecting beams and the second detecting beams, whereinthe plurality of strain detecting elements includes a first detecting portion having a strain detecting element capable of detecting force in a first direction, and a second detecting portion having a strain detecting element disposed at a position symmetric relative to the first detecting portion.2. The sensor ...

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Номер записи: 14
09-02-2017 дата публикации

STRAIN GAUGE

Номер: US20170038266A1
Автор: Syck David Howard
Принадлежит:

Described herein is a strain gauge and a method of making the strain gauge. The strain gauge includes a single conductive filament having a first end, a second end and a measuring length between the first end and the second end. The measuring length is arranged in a planar serpentine pattern. The measuring length has a first cross-sectional area. The first end and second end each have a cross-sectional area greater than the first cross-sectional area. 1. A strain gauge comprising:a single conductive filament having a first end, a second end and a measuring length between the first and second end,wherein the measuring length is arranged in a planar serpentine pattern, the measuring length having a first cross-sectional area,wherein the first end and second end each have a cross-sectional area greater than the first cross-sectional area.2. The strain gauge of claim 1 , wherein the measuring length has a diameter of from about 12.7 microns to about 22.86 microns.3. The strain gauge of claim 1 , wherein the first end has a diameter of from about 25.4 microns to about 254 microns.4. The strain gauge of claim 1 , wherein the second end has a diameter of from about 25.4 microns to about 254 microns.5. The strain gauge of claim 1 , further comprising an insulating film attached to the planar serpentine pattern.6. The strain gauge of claim 1 , further comprising a tape attached to the planar serpentine pattern wherein the tape can withstand a temperature of from 350° C. to 1050° C.7. The strain gauge of claim 1 , wherein the planar serpentine pattern forms a measuring area having a width W of from about 2032 microns to about 38100 microns and a length L of from about 2032 microns to about 38100 microns.8. The strain gauge of claim 1 , wherein the single conductive filament consists of a material selected from the group consisting of: nickel/chromium alloy claim 1 , platinum/nickel alloy claim 1 , platinum claim 1 , and chromium/aluminum alloy.9. A method of making a strain ...

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Номер записи: 15
24-02-2022 дата публикации

Portable Strain Gauge for Improved Impulse and Peak Force Detection

Номер: US20220057278A1
Автор: Cronin John
Принадлежит:

Systems and methods for evaluating the performance of an athlete using a strain gauge is described. In some embodiments, the measurement system comprises a strain gauge and a central processing device. The strain gauge can include a power source, an inertial measurement unit (“IMU”) comprising a load cell, a microcontroller, and a wireless communication module. The strain gauge can be configured to output strain data at a rate of at least 1kHz and the central processing device can be configured to receive the strain data transmitted from the wireless communication module. 1receiving strain data at a rate of at least 1 kHz, wherein the strain data measures strain on a load cell in response to force exerted by a human on the load cell;converting the strain data into force measurements; anddetermining a rate of force development based on the force measurements.. A method for measuring physical exertion by a human, the method comprising: This application is a continuation of U.S. application Ser. No. 16/520,089, “Portable Strain Gauge for Improved Impulse and Peak Force Detection,” filed Jul. 23, 2019; which is a continuation-in-part of International Application No. PCT/NZ2019/005003, filed Jan. 23, 2019; which claims priority to New Zealand Application No. 739356, filed Jan. 23, 2018. All of the foregoing are incorporated by reference in their entirety.This invention relates to strain gauge apparatuses, systems, and methods, and in particular, to portable strain gauges for improved impulse and peak force detection.Unbalanced unilateral (single leg) horizontal force is linked to various type of injuries include hamstring, groin injury, hip flexor, knee ligament and lower back. Understanding unilateral horizontal force is also useful for training performance and monitoring. Such injuries commonly occur in athletes of many popular sport events in which high speed sprinting is frequently performed, including track and field events, football, and rugby. Injuries such as hip ...

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Номер записи: 16
15-02-2018 дата публикации

FLEXIBLE STRAIN SENSORS

Номер: US20180045589A1
Автор: FAN SHOU-SHAN, JIANG KAI-LI, WANG JIA-PING, Yu Yang
Принадлежит:

The present disclosure relates to a flexible strain sensor. The flexible strain sensor includes a composite structure, a first electrode, a second electrode and a detector. The composite structure includes a carbon nanotube film and a substrate combined with each other. The carbon nanotube film defines a desired deformation direction and includes a plurality of first carbon nanotubes oriented substantially perpendicular with the desired deformation direction. The plurality of first carbon nanotubes are joined end to end with each other along their orientation direction. The first electrode and the second electrode are separately located at two opposite ends of the carbon nanotube film and electrically coupled with the carbon nanotube film. The detector is electrically connected with the first electrode and the second electrode. 1. A flexible strain sensor comprising:a composite structure comprising a carbon nanotube film and a substrate combined with each other, the carbon nanotube film defining a desired deformation direction and comprising a plurality of first carbon nanotubes oriented along an orientation direction substantially perpendicular with the desired deformation direction, wherein the plurality of first carbon nanotubes are joined end to end with each other along their orientation direction;a first electrode and a second electrode, the first electrode and the second electrode separately located, one at each of the two opposite ends of the carbon nanotube film and electrically coupled with the carbon nanotube film; anda detector electrically connected with the first electrode and the second electrode.2. The flexible strain sensor of claim 1 , wherein the carbon nanotube film is joined to a surface of the substrate.3. The flexible strain sensor of claim 2 , wherein the carbon nanotube film is joined to the substrate by Van der Waals attractive forces.4. The flexible strain sensor of claim 1 , wherein the carbon nanotube film is embedded in the substrate.5. ...

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Номер записи: 17
03-03-2022 дата публикации

THREE-DIMENSIONAL SENSING MODULE AND METHOD OF MANUFACTURING THE SAME AND ELECTRONIC APPARATUS

Номер: US20220066608A1
Автор: Cheng Tai Shih, Chuang Chih Cheng, Lee Lien Hsin, Lin Sun Po, Lin Wei Yi, Wang Ren Hung, Wei Tsai Kuei, Ye Cai Jin
Принадлежит:

A three-dimensional sensing module includes a touch pressure sensing structure. The touch pressure sensing structure includes a first functional spacer layer, a first light-transmitting electrode layer coated on the first functional spacer layer, a second functional spacer layer coated on the first light-transmitting electrode layer, a second light-transmitting electrode layer coated on the second functional spacer layer, and a third functional spacer layer coated on the second light-transmitting electrode layer. Resistivities of the first, second, and third functional spacer layers are greater than resistivities of the first and second light-transmitting electrode layers. 1. A three-dimensional sensing module , comprising a touch pressure sensing structure , the touch pressure sensing structure comprising:a first functional spacer layer;a first light-transmitting electrode layer coated on the first functional spacer layer;a second functional spacer layer coated on the first light-transmitting electrode layer;a second light-transmitting electrode layer coated on the second functional spacer layer; anda third functional spacer layer coated on the second light-transmitting electrode layer, wherein resistivities of the first functional spacer layer, the second functional spacer layer, and the third functional spacer layer are greater than resistivities of the first light-transmitting electrode layer and the second light-transmitting electrode layer.2. The three-dimensional sensing module of claim 1 , wherein the touch pressure sensing structure further comprises:a first flexible touch electrode layer, wherein the first functional spacer layer is coated on the first flexible touch electrode layer; anda second flexible touch electrode layer coated on the third functional spacer layer,wherein the three-dimensional sensing module further comprises a flexible cover plate disposed on the second flexible touch electrode layer.3. The three-dimensional sensing module of claim 2 ...

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Номер записи: 18
22-02-2018 дата публикации

METHOD FOR PRODUCING A STRAIN GAUGE DEVICE

Номер: US20180049655A1
Автор: ClEMENS Frank, Melnykowycz Mark
Принадлежит: STBL MEDICAL RESEARCH AG

The method for producing the strain gauge device () comprises a first stop of producing the band (). The band () has flexibility at least in the measuring zone (). Then a sensor () comprising at least one measuring strand () and changing electrical resistivity in dependence of the strain is produced and arranged on or in the band () without pre-tension. Afterwards the shape of the band () is changed into a retaining working shape and thereby the measuring strand () is stretched to an amount of pre-tension. 124-. (canceled)2510. A method for producing a strain gauge device () , said method comprising the steps of:{'b': 12', '14', '16', '12', '36, 'producing a band () having an upper side (), an underside (), defining a tensioning direction (L) running in the longitudinal direction of the band () and having flexibility in a measuring zone (),'}{'b': 22', '30', '22', '30', '36, 'producing a sensor () comprising at least one elongate measuring strand () changing electrical resistivity in dependence of the strain and arranging the sensor () without pre-tension at or in the band such that the measuring strand () runs at least almost in the tensioning direction from one end to the other end of the measuring zone (),'}{'b': 12', '36', '58, 'changing the shape of the band () at least in the measuring zone () into a retaining working shape (); and'}{'b': 30', '22, 'stretching the measuring strand () to an amount of pre-tension, whereat the amount of pre-tension defines a lower limit of a working range of the sensor ().'}262260121412581236162260. The method according to claim 25 , further comprising the step of arranging the sensor () at a distance to a bending line () of the band () towards the upper side () and thereafter claim 25 , for changing the shape of the band () in the retaining working shape () claim 25 , bending the band () at least in the measuring zone () along the longitudinal direction (L) in a direction towards the underside () so that thereafter the sensor () ...

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Номер записи: 19
14-02-2019 дата публикации

DEVICE FOR MEASURING AND SYSTEM FOR MEASURING A PRESSURE COMPRISING A PRESSURE SENSOR

Номер: US20190049328A1
Автор: CHETANNEAU Patrice, Guillot François, LEBORGNE Olivier
Принадлежит:

The invention provides a pressure measurement device comprising a pressure sensor () comprising a printed circuit card () having a portion that is to be subjected to the pressure for measurement, the printed circuit card having strain detectors () mounted on said portion to measure deformation of the printed circuit card under the influence of said pressure. 1. A device for measuring the pressure of a vehicle tire , the device comprising:a sensor comprising a printed circuit card having a portion that is to be subjected to the pressure for measurement, the printed circuit card having strain detectors mounted on said portion to measure deformation of the printed circuit card under the influence of said pressure, the sensor being designed to be secured to the tire of pressure that it is desired to measure; and 'the printed circuit card having a first main face and a second main face, the components of the sensor that serve as coupling components between the sensor and the stationary portion of the sensor being arranged on the second main face of said printed circuit card outside the portion that is to be subjected to the pressure for measurement.', 'a stationary portion subjected to be secured to the vehicle facing a path of the sensor to receive measurements acquired by the sensor;'}2. The device according to claim 1 , wherein the printed circuit card includes a central orifice extending from the second main face towards the first main face but without opening out into said first main face claim 1 , the portion that is to be subjected to the pressure for measurement thus being formed by the central zone of minimum thickness defined on top by the bottom of the orifice and at the bottom by the first main face.3. The device according to claim 1 , wherein the printed circuit card includes an orifice extending inside said printed circuit card without opening out in said first main face or said second main face claim 1 , the portion that is to be subjected to the pressure ...

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Номер записи: 20
25-02-2016 дата публикации

CORE-SHELL NANOFIBER TEXTILES FOR STRAIN SENSING, AND METHODS OF THEIR MANUFACTURE

Номер: US20160054185A1
Автор: KO Frank K., SERVATI Amir, Servati Peyman, SOLTANIAN Saeid
Принадлежит:

This invention pertains to a low cost, low noise strain sensor based on a web of continuous core-shell nanofibers with conductive shell and mechanically robust core that can be attached or embedded on a variety objects for directional monitoring of static or dynamic changes in mechanical deformation and pressure. This is a low cost, highly sensitive strain sensor, with low noise and ease of integration for different applications from synthetic tactile skins, to vibrational and health monitoring. 1. A resistive sensor device comprising:a first fiber mesh comprising a first plurality of elongate fibers, wherein each fiber of the first plurality of fibers comprises an electrical conductor comprising an electrically conductive exterior surface reversibly positionable into and out of electrically conductive contact with the electrically conductive exterior surfaces of adjacent fibers of the first plurality of fibers; andat least one resiliently deformable encapsulating film that encapsulates the first fiber mesh, whereby resilient deformation of the at least one encapsulating film moves fibers of the first plurality of fibers and reversibly controls electrically conductive contact between the exterior surfaces of adjacent fibers of the first plurality of fibers and changes electrical resistance of the first fiber mesh.2. The resistive sensor device of claim 1 , further comprising first and second electrical contacts claim 1 , wherein the electrical conductor of at least one of the first plurality of fibers is electrically conductively coupled to the first electrical contact claim 1 , and the electrical conductor of at least one of the first plurality of fibers is electrically conductively coupled to the second electrical contact claim 1 , wherein the first and second electrical contacts are spaced apart from each other and operable to apply electrical voltage or current across at least a portion of the first fiber mesh to define a first desired direction of current ...

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Номер записи: 21
10-03-2022 дата публикации

PRESSURE-SENSITIVE SENSOR

Номер: US20220074800A1
Автор: KOGA Yoshiro
Принадлежит: TAKANO CO., LTD.

There is provided a pressure-sensitive sensor capable measuring pressure distribution over a wide range, measuring pressure consistently in a state of surface contact, and enhancing pressure measurement accuracy in each area of intersection. A pressure-sensitive sensor comprising a conductive cloth having a mixture of conductive carbon black and a binder resin applied thereto, a first-electrode cloth disposed on a first-surface of the conductive cloth, and a second-electrode cloth disposed on a second-surface of the conductive cloth, wherein areas of intersection between the first-electrode cloth and second-electrode cloth are formed so as to have a matrix structure, courses or wales of the first-electrode cloth are arranged so as to be parallel or orthogonal to courses or wales of the conductive cloth, and courses or wales of the second-electrode cloth are arranged so as to be parallel or orthogonal to the courses or wales of the conductive cloth. 1. A pressure-sensitive sensor comprising: a conductive cloth having a mixture of conductive carbon black and a binder resin applied thereto; a first-electrode cloth disposed on a first-surface of the conductive cloth; and a second-electrode cloth disposed on a second-surface of the conductive cloth ,wherein the conductive cloth is a knitted fabric composed of non-conducting fiber yarns, the first-conductive cloth is a knitted fabric in which a plurality of first-electrodes composed of conducting fiber yarns are formed at first-intervals, the second-conductive cloth is a knitted fabric in which a plurality of second-electrodes composed of conducting fiber yarns are formed at second-intervals, and the first-electrodes and the second-electrodes are arranged in a direction intersecting with each other, or wherein the conductive cloth is a knitted fabric composed of non-conducting fiber yarns, the first-electrode cloths and the second-electrode cloths are knitted fabrics composed of conducting fiber yarns, the first-electrode ...

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Номер записи: 22
02-03-2017 дата публикации

SENSOR AND ELECTRONIC DEVICE

Номер: US20170059424A1
Автор: Fuji Yoshihiko, FUKUZAWA Hideaki, Hara Michiko, Higashi Yoshihiro, MASUNISHI KEI, YUZAWA Akiko
Принадлежит:

According to one embodiment, a sensor includes a first sensor unit, a first stacked body, and a film unit. The first sensor unit includes a first magnetic layer, a second magnetic layer, and a first intermediate layer, the first intermediate layer being provided between the first magnetic layer and the second magnetic layer. The first stacked body includes a third magnetic layer, a fourth magnetic layer, and a second intermediate layer, the second intermediate layer being provided between the third magnetic layer and the fourth magnetic layer. The film unit is deformable. A portion of the film unit is disposed between the first sensor unit and the first stacked body. 1. A sensor , comprising:a first sensor unit, the first sensor unit including a first magnetic layer, a second magnetic layer, and a first intermediate layer, the first intermediate layer being provided between the first magnetic layer and the second magnetic layer;a first stacked body, the first stacked body including a third magnetic layer, a fourth magnetic layer, and a second intermediate layer, the second intermediate layer being provided between the third magnetic layer and the fourth magnetic layer; anda film unit, the film unit being deformable, a portion of the film unit being disposed between the first sensor unit and the first stacked body.2. The sensor according to claim 1 , whereinan electrical resistance between the first magnetic layer and the second magnetic layer changes according to the deformation of the film unit.3. The sensor according to claim 1 , whereinan electrical resistance between the third magnetic layer and the fourth magnetic layer changes according to the deformation of the film unit.4. The sensor according to claim 1 , further comprising: a supporter supporting the film unit.5. The sensor according to claim 1 , further comprising:a supporter;a first electrode layer; anda second electrode layer,the first magnetic layer and the second magnetic layer being disposed between ...

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Номер записи: 23
01-03-2018 дата публикации

TOUCH INPUT DEVICE INCLUDING DISPLAY PANEL FORMED WITH STRAIN GAUGE AND DISPLAY PANEL FORMED WITH STRAIN GAUGE FORMING METHOD

Номер: US20180059839A1
Автор: CHO Youngho, KIM Bonkee, KIM Seyeob, KIM Yunjoung
Принадлежит:

A touch input device capable of detecting a touch force may be provided that includes a display panel on which a strain gauge is directly formed. The touch input device detects the touch force on the basis of a change of a resistance value of the strain gauge. 1. A touch input device capable of detecting a touch force , the touch input device comprising a display panel on which a strain gauge is directly formed , wherein the touch force is detected on the basis of a change of a resistance value of the strain gauge.2. The touch input device of claim 1 ,wherein the display panel comprises a first substrate layer, a second substrate layer which is disposed under the first substrate layer, and a liquid crystal layer or an organic material layer which is disposed between the first substrate layer and the second substrate layer,and wherein the strain gauge is formed on a bottom surface of the second substrate layer.3. The touch input device of claim 2 , wherein the display panel further comprises a light shielding layer which is disposed under the second substrate layer on which the strain gauge has been formed.4. The touch input device of claim 1 ,wherein the display panel comprises a first substrate layer, a second substrate layer which is disposed under the first substrate layer, a liquid crystal layer or an organic material layer which is disposed between the first substrate layer and the second substrate layer, and a light shielding layer which is disposed under the second substrate layer,and wherein the strain gauge is formed on a bottom surface of the light shielding layer.5. The touch input device of claim 1 ,wherein the display panel comprises a first substrate layer, a second substrate layer which is disposed under the first substrate layer, a liquid crystal layer or an organic material layer which is disposed between the first substrate layer and the second substrate layer, and a third substrate layer which is disposed under the second substrate layer,and ...

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Номер записи: 24
04-03-2021 дата публикации

DEVICE AND METHOD FOR MEASURING A LOAD APPLIED BY AN ELONGATE MEMBER

Номер: US20210063260A1
Автор: Hahto Paul Andrew, Kearney Alexander Donald
Принадлежит:

There is described a device, such as a wireholder, for measuring a load of an elongate member, such as a power line. The device includes a body, a load-bearing member, and a first sensor operable to measure a load applied to the load-bearing member in a first direction, for example a direction of sensitivity defined by the first sensor. The load-bearing member is movably coupled to the body such that the load-bearing member is displaced from a reference position as a function of a load applied to the load-bearing member in a second direction, such as a direction normal to the first direction. The device may further include a second sensor for measuring a displacement of the load-bearing member. 1. A device for measuring a load applied by an elongate member , comprising:a body;a load-bearing member; anda first sensor operable to measure a load applied to the load-bearing member in a first direction,wherein the load-bearing member is movably coupled to the body such that the load-bearing member is displaced from a reference position as a function of a load applied to the load-bearing member in a second direction.2. The device of claim 1 , further comprising a second sensor operable to measure a displacement of the load-bearing member from the reference position.3. The device of claim 2 , wherein the second sensor is operable to measure an angular orientation of the load-bearing member relative to a vertical axis.4. The device of claim 1 , wherein the reference position is aligned with a vertical axis.5. The device of claim 1 , wherein the first direction is a direction of sensitivity defined by the first sensor.6. The device of claim 1 , wherein the load-bearing member comprises the first sensor.7. The device of claim 1 , wherein the second direction is normal to the first direction.8. The device of claim 1 , wherein the first sensor comprises one or more strains gauges.9. The device of claim 1 , wherein the load-bearing member is rotatably coupled to the body such ...

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Номер записи: 25
28-02-2019 дата публикации

FLEXIBLE SENSOR

Номер: US20190064011A1
Автор: FANG Wei-leun, Wang Jhih-Jhe
Принадлежит: National Tsing Hua University

A flexible sensor including a polymer substrate, four polymer sensor units, a polymer bump, and a plurality of conductive patterns is provided. The polymeric sensor units are embedded in the polymer substrate, wherein one pair of the polymer sensor units are located at two opposite sides of the polymer substrate in a first direction, and the other pair of the polymer sensor units are located at two opposite sides of the polymer substrate in a second direction perpendicular to the first direction. The polymer bump is disposed on the polymer substrate and covers the four polymer sensor units. The conductive patterns are disposed on the polymer substrate and respectively connected to the corresponding polymer sensor unit. 1. A flexible sensor , comprising:a polymer substrate;four polymer sensor units embedded in the polymer substrate, wherein one pair of the polymer sensor units are located at two opposite sides of the polymer substrate in a first direction, and the other pair of the polymer sensor units are located at two opposite sides of the polymer substrate in a second direction perpendicular to the first direction;a polymer bump disposed on the polymer substrate and covering the four polymer sensor units; anda plurality of conductive patterns disposed on the polymer substrate and respectively connected to the corresponding polymer sensor unit.2. The flexible sensor of claim 1 , wherein a material of the polymer substrate comprises a rubber claim 1 , a plastic claim 1 , or a combination thereof.3. The flexible sensor of claim 1 , wherein a material of the polymer sensor units comprises a rubber claim 1 , a plastic claim 1 , or a combination thereof claim 1 , and contains conductive particles.4. The flexible sensor of claim 3 , wherein a material of the conductive particles comprises a carbon black claim 3 , a metal claim 3 , a doped silicon claim 3 , a graphene claim 3 , a conductive polymer material claim 3 , or a combination thereof.5. The flexible sensor of ...

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Номер записи: 26
23-03-2017 дата публикации

STRAIN SENSOR AND LOAD DETECTOR USING SAME

Номер: US20170082508A1
Автор: ABURATA KOUICHI, MOTOFUSA TOSHIHARU, NABETANI KOUJI, NAKASHIMA Koichiro, Nomura Kazuhiro, OBAYASHI MASAHIKO, ODA SHINPEI, OGAWA TAKAAKI, TAKEKAWA ATSUO
Принадлежит:

A strain sensor includes a cylindrical strain body extending in an axial direction, a first fixed part, a second fixed part, and a strain detection element. The first fixed part is connected to the strain body at a first connection part and extends from an opening of a first end of the strain body in the axial direction. The second fixed part is connected to the strain body at a second connection part and extends from an opening of a second end of the strain body in a direction opposite to the first fixed part with a gap interposed between the strain body and the second fixed part. The strain detection element is disposed such that a center of the strain detection element is closer to the second fixed part than a center of the gap in the axial direction. 1. A strain sensor comprising:a cylindrical strain body extending in an axial direction;a first fixed part connected to the strain body at a first connection part and extending from an opening of a first end of the strain body in the axial direction, the first fixed part including a first engagement part to be fixed to an object to be detected;a second fixed part connected to the strain body at a second connection part and extending from an opening of a second end of the strain body in a direction opposite to the first fixed part with a gap interposed between the strain body and the second fixed part, the second fixed part including a second engagement part to be fixed to the object to be detected; anda strain detection element provided on an outer peripheral surface of the strain body,wherein the strain detection element is disposed such that a center of the strain detection element is closer to the second fixed part than a center of the gap in the axial direction.2. The strain sensor according to claim 1 , wherein the center of the strain detection element is provided at a position close to the gap in the second connection part in the axial direction.3. The strain sensor according to claim 1 , further comprising a ...

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Номер записи: 27
21-03-2019 дата публикации

SMART SHOE MODULE

Номер: US20190082771A1
Автор: AN Kuangjun, Cho Jinho, HAN Donghoon, HWANG Changkyu, JANG Sungkwon, KIM Jeonghwa, KIM Kyoungtae, KIM Minsoo, SHIN Seungyong
Принадлежит: LG ELECTRONICS INC.

Provided in a smart shoe module mounted to a smart shoe for analyzing the motion of a wearer and providing various functions, the smart shoe module comprising: an upper case which forms an upper outer experience of a pressure switch and elastically behaves by means of a pressure, which is applied in a first direction and has a particular value or larger, in order to accurately measure the motion of the wearer by measuring the pressure generated during walking of a wearer, as digital signals such as on-signal and an off-signal, and, moreover, minimize a manufacturing tolerance so as to prevent an error in distinguishing between an on-signal and an off-signal from being caused by the pressure generated during walking of the wearer; a lower case coupled to the lower end of the upper case and forming a lower end outer experience of the pressure switch; a substance amounted to the inside of the upper case and generating a signal in the first circuit unit through the elastic behavior; and a control unit for processing the signal generated in the first circuit unit. 1. A smart shoe module comprising:an upper case provided to define an upper exterior of a pressure switch and configured to be elastically movable by a specific pressure value or more activating in a first direction;a lower case coupled to a lower end of the upper case and provided to define a lower end exterior of the pressure switch;a circuit board loaded in the lower case and comprising a first circuit unit;a conductive member provided between the upper and the first circuit unit of the circuit board and configured to generate a signal in the first circuit unit according to the elastic motion; anda controller implemented to process the signal generated in the first circuit unit.2. The smart shoe module of claim 1 , wherein the first circuit unit and the conductive member form a first gap.3. The smart shoe module of claim 1 , further comprising:a coupling hole provided in a predetermined area of one of the ...

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Номер записи: 28
25-03-2021 дата публикации

Ultra-Sensitive, Mechanically-Responsive Optical Metasurfaces Via Strain Amplification

Номер: US20210088392A1
Автор: CHEN WENXIANG, Jiang Yijie, Kagan Cherie, TURNER Kevin
Принадлежит:

Provided are structurally-reconfigurable, optical metasurfaces constructed by, for example, integrating a plasmonic lattice array in the gap between a pair of microbodies that serve to locally amplify the strain created on an elastomeric substrate by an external mechanical stimulus. The spatial arrangement and therefore the optical response of the plasmonic lattice array is reversible. 1. A mechanically responsive component , comprising:an elastic substrate, the first elongate microbody defining a major axis, a proximal end, and a distal end,', 'the first elongate microbody defining a maximum width measured perpendicular to the major axis, and', 'the width of the first elongate microbody measured at the proximal end being less than the maximum width,, 'a first elongate microbody disposed on the elastic substrate,'} the second elongate microbody defining a major axis, a proximal end, and a distal end,', 'the proximal end of the first elongate microbody being disposed opposite the proximal end of the second elongate microbody so as to define a gap between the proximal end of the first elongate microbody and the proximal end of the second elongate microbody; and, 'a second elongate microbody disposed on the elastic substrate,'} the strain-sensitive structure being disposed in the gap between the proximal end of the first elongate microbody and the proximal end of the second elongate microbody, and', 'the component being configured so as locally amplify, at the location of the strain-sensitive structure, an external strain applied to the elastic substrate., 'a strain-sensitive structure disposed on the elastic substrate,'}2. The mechanically responsive component of claim 1 , wherein the proximal end of the first elongate microbody and the proximal end of the second elongate microbody are separated by less than about 120 micrometers.3. The mechanically responsive component of claim 2 , wherein the proximal end of the first elongate microbody and the proximal end of the ...

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Номер записи: 29
29-03-2018 дата публикации

HERMETICALLY SEALED SENSOR

Номер: US20180087980A1
Автор: Lisiak Maciej, Mokhbery Javad, Walker Richard
Принадлежит:

A sensor such as a load cell includes a metal body containing the sensor electronics and flexure elements. Power is brought into the electronics and signals are taken out via header pins arranged in any of various groupings so as to extend through holes in the body. The pins are fixed by means of fused glass or ceramic material and the body is sealed to tolerate harsh environmental conditions. 1. A hermetically sealed sensor comprising:a hollow one piece body having a continuous wall defining an interior surface and an exterior surface;a plurality of holes excluding fully through the wall;a plurality of header pins disposed in the plurality of holes;a plurality of heat fused, insulative seal members disposed in the plurality of holes surrounding relationship to the pins to hermetically seal the holes; anda flexure member disposed within the interior surface of the one piece shell body;a strain gage circuit operatively associated with the flexure member;a load bearing member extending from the flexure member;whereby a force, pressure or torque applied to the load bearing member produces a signal across a set of said header pins.2. The hermetically sealed sensor of claim 1 , wherein the flexure member is a cruciform-shaped flexure member having four legs that extend from the interior surface of the one pieced shell body claim 1 , the four legs defining four quadrants.3. The hermetically sealed load sensor of claim 2 , wherein the fusable members are made of a material chosen from the group consisting of glass and ceramics.4. The hermetically sealed load sensor of claim 3 , wherein the pins are arranged in pairs claim 3 , the pairs being located opposite each other generally 180 degrees apart on the one piece shell body.5. The hermetically sealed load sensor of claim 3 , wherein the four pins are arranged to be spaced apart by generally 90 degrees on the one piece shell body.6. The hermetically sealed load sensor of claim 1 , further comprising:the interior surface of ...

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Номер записи: 30
01-04-2021 дата публикации

FORCE SENSING INPUT DEVICE UTILIZING STRAIN GAUGES

Номер: US20210096034A1
Автор: Sobel David, TANEMURA Tetsuo
Принадлежит:

A force sensing device comprises a first force sensor and a second force sensor. The first force sensor is configured to output a first force resulting signal and comprises a first strain gauge coupled to a first voltage source and a first trace. The first force sensor further comprises a second strain gauge coupled to a second voltage source and the first trace. The second force sensor is configured to output a second force resulting signal having a polarity opposite that of the first force resulting signal. The second force sensor comprises a first strain gauge coupled to the second voltage source and a second trace, and a second strain gauge coupled to the first voltage source and the second trace. 1. A force sensing device comprising: a first strain gauge having a first end coupled to a first voltage source configured to provide a first voltage and a second end coupled to a first trace; and', 'a second strain gauge having a first end coupled to a second voltage source configured to provide a second voltage and a second end coupled to the first trace, the second voltage differs from the first voltage; and, 'a first force sensor configured to output a first force resulting signal and comprising a first strain gauge having a first end coupled to the second voltage source and a second end coupled to a second trace; and', 'a second strain gauge having a first end coupled to the first voltage source and a second end coupled to the second trace, and wherein a polarity of the first force resulting signal is opposite a polarity of the second force resulting signal., 'a second force sensor configured to output a second force resulting signal and comprising2. The force sensing device of claim 1 , wherein the first strain gauge or the second strain gauge of the first force sensor is an n-type strain gauge and the other one is a p-type strain gauge.3. The force sensing device of claim 2 , wherein one of the first strain gauge or the second strain gauge of the second force ...

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Номер записи: 31
12-05-2022 дата публикации

FORCE SENSOR

Номер: US20220146343A1
Автор: NIWA Eiji
Принадлежит:

Provided is a force sensor capable of expanding the application range of an electrically conductive member having an isotropic gauge factor. The electrically conductive member is placed in a designated latitude region on a main face of the strain body to annularly extend around a pole and to be divided at a position. The designated latitude region is a latitude region in which the magnitude of the sum of a first strain amount in the longitude line direction of the strain body relative to the pole and a second strain amount in the latitude line direction is not less than a reference value when a force having a component in the perpendicular direction to the main face is applied to the strain body. 1. A force sensor comprising:a strain body having resiliency or elasticity;a supporting portion supporting the strain body over an entire circumference thereof in a continuous or discrete manner; andan electrically conductive member placed on a main face of the strain body and having an isotropic gauge factor in a direction of the main face, whereinthe electrically conductive member is placed on the main face of the strain body to annularly extend around a pole and to be divided at a position, in a designated latitude region in which a magnitude of a sum of a first strain amount in a longitude line direction of the strain body relative to the pole and a second strain amount in a latitude line direction of the strain body is not less than a reference value when a force having a component in a perpendicular direction to the main face is applied to the strain body.2. The force sensor according to claim 1 , whereinthe strain body has a shape having rotational symmetry about an axis that is parallel to a line perpendicular to the main face and passes through the pole or having mirror symmetry through a plane that is perpendicular to the main face and passes through the pole,the continuous or discrete supporting manner of the strain body over a periphery by the supporting portion ...

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Номер записи: 32
02-06-2022 дата публикации

STRAIN GAUGE AND METHOD FOR MANUFACTURING STRAIN GAUGE

Номер: US20220170803A1
Автор: KANAI Yasuhiko, TAKEICHI Shinji
Принадлежит:

Provided is a strain gauge including a substrate, a resistive body, and a metal sheet. The resistive body includes a sensing portion, a first connection portion, and a second connection portion. The metal sheet covers at least the substrate that is exposed between two connection sites to which wirings to an external circuit are respectively connected and provided respectively in the first connection portion and the second connection portion and the sensing portion. 1. A strain gauge comprising:a substrate having insulating properties;a resistive body disposed on one main surface of the substrate, the resistive body having conductivity and being adapted to stretch and contract in accordance with deformation of the substrate; anda metal sheet that covers the one main surface of the substrate and is formed from a metallic material,wherein the resistive body includes,a sensing portion formed to extend along a first direction while being folded back,a first connection portion which is connected to one end of the sensing portion, and to which a wiring to an external circuit is connected, anda second connection portion which is connected to another end of the sensing portion, and to which a wiring to the external circuit is connected, andthe metal sheet covers at least the sensing portion and a portion of the substrate exposed between two connection sites to which the wirings to the external circuit are respectively connected and provided respectively in the first connection portion and the second connection portion.2. The strain gauge according to claim 1 ,wherein the metal sheet is disposed over the first connection portion, the second connection portion, and the sensing portion, and covers parts of the first connection portion and the second connection portion beyond the portion of the substrate exposed between the two connection sites and the sensing portion when viewed from the sensing portion.3. The strain gauge according to claim 2 , further comprising:an insulating ...

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Номер записи: 33
21-04-2016 дата публикации

SYSTEM AND METHOD FOR SPIRAL CONTACT FORCE SENSORS

Номер: US20160109307A1
Автор: PIERONEK James
Принадлежит:

A system and method for spiral contact force sensors includes a force sensor including a substrate, a first contact having a first spiral pattern formed on the substrate, a second contact having a second spiral pattern formed on the substrate, the first and second spiral patterns being interleaved, and a force sensitive material disposed so as to provide a variable resistance between the first contact and the second contact based on a force applied to the force sensor, wherein a force-resistance relationship of the force sensor is continuous as a radius of a circular region where the force is applied to the force sensor varies. 1. A force sensor comprising:a substrate;a first contact having a first spiral pattern formed on the substrate;a second contact having a second spiral pattern formed on the substrate, the first and second spiral patterns being interleaved; anda force sensitive material disposed so as to provide a variable resistance between the first contact and the second contact based on a force applied to the force sensor;wherein a response relationship of the force sensor is continuous as a radius of a circular region where the force is applied to the force sensor varies.2. The force sensor of claim 1 , wherein the force sensitive material is deposed between the first contact and the second contact.3. The force sensor of claim 1 , wherein the force sensitive material is deposed on a layer above or below the first contact and the second contact.4. The force sensor of claim 1 , wherein the force sensitive material is deposited on a second substrate and pressed against the first contact and the second contact.5. The force sensor of wherein the force sensitive material passes current between the first contact and the second contact wherein the current changes with the force applied.6. The force sensor of claim 1 , a voltage between the first contact and the second contact changes with the force applied.7. The force sensor of claim 1 , wherein the first spiral ...

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Номер записи: 34
19-04-2018 дата публикации

DEVICE FOR DETECTING STRAINS AND TRANSMITTING DETECTED DATA

Номер: US20180106691A1
Автор: Maisto Guido
Принадлежит:

A device for detecting strains and transmitting detected data that can be applied to the surface of a structure to be monitored or incorporated in the structure is provided. The device allows to reliably acquire and transmit data concerning the strains undergone by the structure. The device comprises a matrix made of an electrically insulating material, in which at least one or more strain sensors, an electronic circuit and an antenna electrically connected to one another are embedded. One or more strain sensors are made of a material selected from metals and metal alloys, electrically conductive resins and electrically conductive inks. 1. A device for detecting strains and transmitting detected data , which device comprises an electrically insulating matrix in which there are embedded at least:one or more strain sensors, made as resistive conductive elements, the dimensional variations of which bring about variations of electrical resistance;an electronic circuit electrically connected to the one or more sensors and adapted to detect the variations of electrical resistance;an antenna electrically connected to said electronic circuit,wherein the one or more strain sensors are made of a material selected from the group consisting of metals and metal alloys, electrically conductive resins and electrically conductive inks.2. The device according to claim 1 , wherein the one or more strain sensors are made of an electrically conductive resin.3. The device according to claim 1 , wherein the one or more strain sensors are made of an electrically conductive ink.4. The device according to claim 1 , wherein the electronic circuit and the antenna are made on one and the same printed circuit board.5. The device according to claim 4 , wherein the printed circuit board is made as a flexible printed circuit board.6. The device according to claim 1 , wherein a shielding layer is further embedded in said electrically insulating matrix.7. The device according to claim 6 , wherein ...

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Номер записи: 35
28-04-2016 дата публикации

TRANSDUCER ARRANGEMENT FOR MEASURING LOAD VARIATIONS

Номер: US20160116352A1
Автор: Bieck Werner, MARX Edmund
Принадлежит:

The invention relates to a transducer arrangement for converting a load variation into one or more electrical output signals. The transducer arrangement comprises at least one transducer element and an evaluation unit operatively connected to the transducer element. The transducer arrangement can be used amongst others, for healthcare applications, sport leisure activities, impact detection for safety applications in the automotive industry as well as for safety surveillance systems in the industry. 1. A transducer arrangement for converting a load variation into one or more electrical output signals , said transducer arrangement comprising:at least one transducer element, andan evaluation unit operatively connected to said transducer element,wherein said transducer element comprises a combination of a first transducer and a second transducer, and a first evaluation circuit associated to said first transducer for converting-a static loads or quasi-static load variations into a first output signal,', 'a second evaluation circuit associated to said second transducer for converting a highly dynamic load variations into a second output signal, and', 'an output circuit operatively connected to said first evaluation circuit and said second evaluation circuit for outputting at least one of said first electrical output signal and said second electrical output signal., 'wherein said evaluation unit comprises2. A transducer arrangement according to claim 1 , wherein at least one of said first transducer and said second transducer is foil-based.3. A transducer arrangement according to claim 1 , wherein said first transducer is a foil type pressure sensor comprising:a first carrier foil,a second carrier foil being kept apart from said first carrier foil by one or more spacers arranged between said first carrier foil and said second carrier foil, andat least two electrodes and a layer of pressure sensitive material arranged in an active area of said first transducer, said ...

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Номер записи: 36
26-04-2018 дата публикации

STRAIN GAUGE

Номер: US20180113034A1
Автор: INAMORI Dohaku
Принадлежит:

There is provided a strain gauge having both reduced size and symmetry. The strain gauge includes at least four grid resistor connected to each other in series, and at least three trim resistors each connected to a series circuit in parallel, the series circuit being constituted by two grid resistors adjacent to each other (R,R; R,R; R,R) of the at least four grid resistors. The at least four grid resistors have resistance values different from one another. 1. A strain gauge comprising:at least four grid resistors connected to each other in series; andat least three trim resistors each connected to a series circuit in parallel, the series circuit being constituted by two grid resistors adjacent to each other, of the at least four grid resistors, whereinthe at least four grid resistors have resistance values different from one another.2. The strain gauge according to claim 1 , whereinthe at least four grid resistors are patterned in such a manner as to be folded in a zigzag manner with each of the grid resistors, and include folded portions each formed on a ridge side or a trough side, andeach of the at least three trim resistors is connected between folded portions adjacent to each other on the ridge side or between folded portions adjacent to each other on the trough side.3. The strain gauge according to claim 1 , whereinthe at least four grid resistors have a uniform line width and have lengths different from each other.4. The strain gauge according to claim 2 , whereinthe at least four grid resistors have a uniform line width and have lengths different from each other. This application claims the benefit of Japanese Patent Application No. 2016-206958, filed Oct. 21, 2016, which is hereby incorporated by reference in its entirety.The present disclosure relates to a strain gauge.In a conventional strain gauge including a resistor having a zigzag shape patterned on an insulating substrate of the strain gauge, a resistance value is adjusted by trimming part of a ...

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Номер записи: 37
09-06-2022 дата публикации

Force Measurement Assembly

Номер: US20220178775A1
Автор: Berme Necip, Ghassab Sasan
Принадлежит:

A force measurement assembly is disclosed herein. The force measurement assembly includes a top component, the top component having a top surface for receiving at least one portion of the body of the subject; a single force transducer supporting the top component, the single force transducer configured to sense one or more measured quantities and output one or more signals that are representative of forces and/or moments being applied to the top surface of the top component by the subject; and a base component disposed underneath the single force transducer, the base component configured to be disposed on a support surface. 1. A force measurement assembly configured to receive a subject , the force measurement assembly including:a top component, the top component having a top surface for receiving at least one portion of the body of the subject;a single force transducer supporting the top component, the single force transducer configured to sense one or more measured quantities and output one or more signals that are representative of forces and/or moments being applied to the top surface of the top component by the subject; anda base component disposed underneath the single force transducer, the base component configured to be disposed on a support surface.2. The force measurement assembly according to claim 1 , wherein the single force transducer is disposed proximate to a center of the top component.3. The force measurement assembly according to claim 1 , wherein the single force transducer supports the entire weight of the top component.4. The force measurement assembly according to claim 1 , wherein the single force transducer is in a form of a pylon-type force transducer.5. The force measurement assembly according to claim 1 , wherein the single force transducer comprises a force transducer beam.6. The force measurement assembly according to claim 1 , wherein the single force transducer is configured to measure at least one force component and at least one ...

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Номер записи: 38
18-04-2019 дата публикации

FLEXIBLE SENSOR APPARATUS

Номер: US20190113326A1
Автор: Bachman Mark, Khine Michelle, Kim Joshua, Park Sun-Jun, Pegan Jonathan
Принадлежит:

A method of making a sensor apparatus including placing a mask over a polymeric sheet, wherein the mask is configured to block regions of the polymeric sheet, depositing a conductive structure on the polymeric sheet at regions exposed through the mask, shrinking the polymeric sheet with conductive structure patterned on its surface by heating, and transferring the conductive structure to a flexible substrate. 1. A method of making a sensor apparatus , comprising:placing a a mask over a polymeric sheet, wherein the mask is configured to block regions of the polymeric sheet,depositing a conductive structure on the polymeric sheet at regions exposed through the mask,shrinking the polymeric sheet with conductive structure patterned on its surface by heating, andtransferring the conductive structure to a flexible substrate.2. The method of claim 1 , further comprising applying an adhesive layer to said conductive structure after shrinking the polymeric sheet and before transferring the conductive structure to the flexible substrate claim 1 , wherein said conductive structure is bonded by the adhesive layer to the flexible substrate.3. The method of claim 1 , wherein said conductive structure is covalently bonded by the adhesive layer to the flexible substrate.4. The method of claim 1 , wherein the flexible substrate is an elastomeric polymer.5. The method of claim 1 , further comprising casting the flexible substrate on the same surface of the polymeric sheet where the conductive structure is deposited.6. The method of claim 1 , wherein the polymeric sheet comprises a shape-memory polyolefin (PO) film.7. The method of claim 1 , wherein the polymeric sheet comprises polystyrene. Any and all applications for which a foreign or domestic priority claim is identified in the Application Data Sheet as filed with the present application are hereby incorporated by reference under 37 CFR 1.57.This application is directed to sensors that can withstand high degrees of strain while ...

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Номер записи: 39
05-05-2016 дата публикации

HIGH-SENSITIVITY SENSOR COMPRISING CONDUCTIVE THIN FILM CONTAINING CRACKS AND METHOD FOR MANUFACTURING SAME

Номер: US20160123820A1
Автор: CHOI Man Soo, CHOI Yong Whan, KANG Daeshik, KIM Tae-Il, LEE Chanseok, Suh Kahp-Yang
Принадлежит:

A high-sensitivity sensor containing cracks is provided. The high-sensitivity sensor is obtained by forming microcracks on a conductive thin film, which is formed on top of a support, wherein the microcracks form a micro joining structure in which the microcracks are electrically changed, short-circuited or open, thereby converting external stimuli into electric signals by generating a change in a resistance value. The high-sensitivity sensor can be useful in a displacement sensor, a pressure sensor, a vibration sensor, artificial skin, a voice recognition system, and the like. 1. A highly sensitive sensor comprising:a support; anda conductive thin film formed on at least one side of the support,wherein the conductive thin film includes cracks, at least some of which have opposing surfaces in partial contact with each other, the crack surfaces undergo a variation in contact area or disconnection-reconnection events to cause a change in electrical resistance while moving relative to each other in response to external physical stimuli, and the sensor detects the resistance change to measure the external stimuli.2. The highly sensitive sensor according to claim 1 , wherein the cracks are formed along grain boundaries of the conductive thin film.3. The highly sensitive sensor according to claim 2 , wherein the cracks are on a nanometer scale.4. The highly sensitive sensor according to claim 1 , wherein the cracks are electrically shorted or open by an external stimulus to change the electrical resistance values of the conductive thin film.5. The highly sensitive sensor according to claim 4 , wherein the external stimulus is selected from displacements claim 4 , vibrations claim 4 , strains claim 4 , pressures claim 4 , and combinations thereof.6. The highly sensitive sensor according to claim 1 , wherein the support has a multilayer structure comprising a base film and a flexible polymer layer formed on the base film.7. The highly sensitive sensor according to claim 1 , ...

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Номер записи: 40
03-05-2018 дата публикации

INTEGRATED HYPER-REDUNDANT TACTILE SENSOR NETWORK BASED ON STRUCTURAL FIBERS

Номер: US20180120173A1
Автор: Park Daniel
Принадлежит:

A system and method are disclosed for measuring stress in a composite structure including an integral sensor network. The composite structure is formed in layers with each of the layers formed from parallel fibers. At least one of the layers includes a plurality of fiber sensor cells distributed among the parallel fibers. Each of the fiber sensor cells has an inner fiber core and a non-conductive layer formed over the inner fiber core. A controller is electrically coupled to each of the fiber sensor cells and configured to determine a level of stress in the composite structure based on a change in a resistance level of the inner fiber core of each of the fiber sensor cells. The fiber sensor cells may be in a single direction or may be in a weave pattern with a first group arranged at a non-zero angle with respect to a second group. 1. A composite structure including an integral sensor network , comprising:a composite structure formed in layers, each of the layers formed from parallel fibers; andwherein at least one of the layers includes a plurality of fiber sensor cells distributed among the parallel fibers, each of the fiber sensor cells comprising an inner fiber core and a non-conductive layer formed over the inner fiber core.2. The composite structure of claim 1 , wherein each of the plurality of fiber sensor cells is oriented in a single direction parallel to each other of the plurality of fiber sensor cells.3. The composite structure of claim 2 , wherein each of the plurality of fiber sensor cells has a first connection terminal at a first end thereof connected to a first end of the corresponding inner fiber core and a second connection terminal at a second end thereof connected to a second end of the corresponding inner fiber core and all of the plurality of fiber sensor cells are electrically coupled in parallel by electrically connecting each of the first connection terminals to each other of the first connection terminals and by electrically connecting ...

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Номер записи: 41
16-04-2020 дата публикации

FORCE SENSOR FOR SURGICAL DEVICES

Номер: US20200113642A1
Автор: Mozdzierz Patrick, Sgroi Anthony, VALENTINE David
Принадлежит:

The present disclosure relates to force sensors and force sensor substrates for use with surgical devices. 12-. (canceled)3. A force sensor comprising:a substrate including a proximal surface having a proximal load contact area and a distal surface having at least one distal load contact area and a sensing area, the distal surface being planar and having at least one groove defined therein separating the at least one distal load contact area from the sensing area.4. The force sensor according to claim 3 , wherein the substrate includes a central aperture defined therethrough.5. The force sensor according to claim 4 , wherein the proximal load contact area of the substrate is disposed adjacent to the central aperture.6. The force sensor according to claim 3 , wherein the at least one distal load contact area of the substrate includes four distal load contact areas disposed at corners of the substrate.7. The force sensor according to claim 6 , wherein the at least one groove defined in the distal surface of the substrate includes a plurality of grooves claim 6 , each groove of the plurality of grooves corresponding to and surrounding one of the four distal load contact areas and terminating at side surfaces of the substrate.8. The force sensor according to claim 3 , wherein the at least one groove has a depth of about 0.01 millimeter and a width of about 0.01 millimeter in the distal surface of the substrate.9. The force sensor according to claim 3 , further comprising at least one sensing element disposed on the sensing area of the substrate.10. The force sensor according to claim 9 , wherein the at least one sensing element is a strain gauge.11. The force sensor according to claim 3 , wherein the substrate further includes a groove defined in the sensing area of the substrate.12. The force sensor according to claim 11 , wherein the groove defined in the sensing area includes a series of connected parallel cuts. This application is a divisional of U.S. patent ...

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Номер записи: 42
23-04-2020 дата публикации

Wearable Stacked Strain Gauge Sensor for Monitoring

Номер: US20200121204A1
Автор: Agno Marlon, Gelorme Jeffrey D., Sakuma Katsuyuki
Принадлежит:

Stacked strain gauge sensors with increased electrical resistance are provided. In one aspect, a method of forming a stacked strain gauge sensor includes: forming multiple sensor layers, wherein the sensor layers include strain gauge sensor wires on substrates; forming holes in the substrates; stacking the sensor layers, one on top of another, to form a stack with the holes aligned in one or more locations forming through holes in the stack; and forming interconnects in the holes in one or more other locations interconnecting the strain gauges sensor wires between adjacent sensor layers to form a stacked strain gauge sensor. A stacked strain gauge sensor and method of use thereof are also provided. 1. A method , comprising:forming multiple sensor layers, wherein the sensor layers comprise strain gauge sensor wires on substrates;forming holes in the substrates;stacking the sensor layers, one on top of another, to form a stack with the holes aligned in one or more locations forming through holes in the stack; andforming interconnects in the holes in one or more other locations interconnecting the strain gauges sensor wires between adjacent sensor layers to form a stacked strain gauge sensor.2. The method of claim 1 , wherein the strain gauge sensor wires have a serpentine configuration.3. The method of claim 1 , wherein the strain gauge sensor wires are formed from a material selected from the group consisting of: an electrically conductive paste claim 1 , a metal claim 1 , a metal alloy claim 1 , a doped semiconductor material claim 1 , and combinations thereof.4. The method of claim 1 , further comprising the step of:printing the strain gauge sensor wires on the substrates.5. The method of claim 1 , wherein each of the substrates comprises:a cover film; anda backing film attached to the cover film by an adhesive layer.6. The method of claim 5 , wherein the cover film comprises a release film coated with a release agent.7. The method of claim 5 , wherein the backing ...

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Номер записи: 43
01-09-2022 дата публикации

LOAD SENSOR ELEMENT AND MANUFACTURING METHOD OF LOAD SENSOR ELEMENT

Номер: US20220276105A1
Автор: KANEKO Homare, KONDOU Daichi, Shibuya Yusuke, SHIOBARA Natsumi, URANO Koichi
Принадлежит:

A load sensor element includes a substrate made of a ceramic material; an inorganic layer having a surface configured to receive a load, the inorganic layer covers a portion of the substrate; a thin-layer resistance body whose resistance value changes in accordance with the load received by the inorganic layer, the thin-layer resistance body having a main body portion and a pair of end portions, the main body portion mounted on the covered portion of the substrate and sandwiched between the substrate and the inorganic layer, the pair of end portions mounted on an exposed portion of the substrate, and the exposed portion free of the inorganic layer; and a pair of electrodes electrically connected to the pair of end portions of the thin-layer resistance body and separated away from the inorganic layer and on one side of the substrate. 1. A load sensor element configured to detect a load , the load sensor element comprising:a substrate made of a ceramic material or a metal material, the metal material having an insulating layer on its surface;an inorganic layer having a pressure receiving surface configured to receive the load, the inorganic layer being provided so as to cover a part of a single surface of the substrate;a thin-layer resistance body formed of a resistance body whose resistance value is changed in accordance with the load received by the inorganic layer, the thin-layer resistance body having a main body portion and both end portions, the main body portion being sandwiched between the substrate and the inorganic layer, the both end portions being mounted on an exposed portion of the substrate, and the exposed portion of the substrate being not covered with the inorganic layer; anda pair of electrodes electrically connected to the both end portions of the thin-layer resistance body so as to be separated away from the inorganic layer, the electrodes being provided on one side of the substrate.2. The load sensor element according to claim 1 , wherein the ...

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Номер записи: 44
30-04-2020 дата публикации

Pressure-Sensitive Sensor And Hand

Номер: US20200132563A1
Автор: TAKAGI Fumio
Принадлежит:

A pressure-sensitive sensor includes a first electrode, a second electrode, and a conductive resin located between the first electrode and the second electrode, wherein the conductive resin includes a first region, and a second region different from the first region in thickness in a direction in which the first electrode and the second electrode are arranged, and the second region surrounds the first region. Further, the thickness of the second region is thicker than the thickness of the first region. Further, a center of the first electrode is located within the first region in a plan view from the direction in which the first electrode and the second electrode are arranged. 1. A pressure-sensitive sensor comprising:a first electrode;a second electrode; anda conductive resin located between the first electrode and the second electrode, wherein a first region, and', 'a second region different from the first region in thickness in a direction in which the first electrode and the second electrode are arranged, and, 'the conductive resin includes'}the second region surrounds the first region.2. The pressure-sensitive sensor according to claim 1 , whereinthe thickness of the second region is thicker than the thickness of the first region.3. The pressure-sensitive sensor according to claim 1 , whereina center of the first electrode is located within the first region in a plan view from the direction in which the first electrode and the second electrode are arranged.4. The pressure-sensitive sensor according to claim 1 , whereinthe conductive resin includes a carbon nanotube.5. The pressure-sensitive sensor according to claim 1 , whereinthe first region and the second region are formed of separate bodies.6. The pressure-sensitive sensor according to claim 1 , whereina shape of the first region is a circular shape in a plan view from the direction in which the first electrode and the second electrode are arranged.7. The pressure-sensitive sensor according to claim 1 , ...

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Номер записи: 45
30-04-2020 дата публикации

IMPLEMENTING STRAIN SENSING THERMAL INTERFACE MATERIALS

Номер: US20200135611A1
Автор: Campbell Eric J., Czaplewski-Campbell Sarah K., Kuczynski Joseph, TOFIL Timothy
Принадлежит:

Methods and structures are provided for implementing strain sensing thermal interface materials (TIMs). An in situ strain sensing thermal interface material (TIM) layer is provided within a packaging assembly structure. The strain sensing TIM is formed by graphene incorporated into the TIM layer. Electrical leads are coupled to the strain sensing TIM layer providing electrical contacts for measuring the electrical property change of the TIM which correlates to mechanical strain. 1. A packaging structure for implementing strain gauge thermal interface materials (TIMs) comprising:an in situ strain sensing thermal interface material (TIM) layer in the packaging structure;graphene incorporated into the TIM layer providing the strain sensing capability for measuring strain on the strain sensing TIM layer, andelectrical leads coupled to the strain sensing TIM layer providing electrical contacts for measuring strain.2. The structure as recited in claim 1 , wherein the thermal interface material (TIM) has predefined viscoelastic properties.3. The structure as recited in claim 2 , wherein the thermal interface material (TIM) maintains the viscoelastic properties in the packaging structure.4. The structure as recited in claim 1 , wherein the strain sensing TIM is electrically conductive.5. The structure as recited in claim 1 , wherein the graphene changes the electromechanical properties of the thermal interface material (TIM).6. The structure as recited in claim 1 , wherein the strain sensing TIM layer is formed by incorporating graphene nanosheets prepared by processing liquid phase-exfoliation of graphite producing nanosheets in to the TIM.7. The structure as recited in claim 6 , wherein the nanosheets having lengths in a range of approximately 200 nm to 800 nm.8. The structure as recited in claim 1 , wherein the packaging structure includes the in situ strain sensing thermal interface material (TIM) layer disposed between a heat source module and a heat sink.9. The ...

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Номер записи: 46
25-05-2017 дата публикации

PRESSURE-SENSITIVE RESPONSIVE LAMINATE, COATING LAYER AND PRESSURE-SENSITIVE RESPONSIVITY-IMPARTING MATERIAL

Номер: US20170146412A1
Автор: Higashira Toshihiro, HIGUMA Takahiro
Принадлежит: NOK CORPORATION

An object of the present invention is to provide a pressure-sensitive responsive laminate excellent in durability at the repeated use, and further which can ensure change in resistance values at the unloaded time and at the time of applying a load with a large width, a coating layer which can be used for the pressure-sensitive responsive laminate, and a pressure-sensitive responsivity-imparting material which imparts pressure-sensitive responsivity to a conductive substrate, and the object can be solved by a pressure-sensitive responsive laminate which comprises a coating layer being laminated onto a conductive substrate, and unevenness derived from non-conductive particles included in the coating layer being formed onto a surface of the coating layer; a coating layer which comprises non-conductive particles, unevenness derived from the non-conductive particles being formed onto a surface thereof, and pressure-sensitive responsivity being imparted by being laminated onto a conductive substrate; and a pressure-sensitive responsivity-imparting material which comprises non-conductive particles, and imparts pressure-sensitive responsivity by being coated onto a conductive substrate. 1. A pressure-sensitive responsive laminate which comprises a coating layer being laminated onto a conductive substrate , and unevenness derived from non-conductive particles included in the coating layer being formed onto a surface of the coating layer.2. The pressure-sensitive responsive laminate according to claim 1 , wherein the surface of the coating layer has a ten-point average roughness Rz in the range of 3 μm to 50 μm.3. The pressure-sensitive responsive laminate according to claim 1 , wherein the coating layer contains a silicone-based resin.4. The pressure-sensitive responsive laminate according to claim 1 , wherein the conductive substrate contains a silicone rubber.5. The pressure-sensitive responsive laminate according to claim 1 , wherein a hardness Hs of the conductive ...

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Номер записи: 47
25-05-2017 дата публикации

PRESSURE-SENSITIVE SAFETY DEVICE FOR MONITORING A TECHNICAL INSTALLATION

Номер: US20170146413A1
Автор: IBROCEVIC Onedin, KUCZERA Matthias, SCHWEIKER Matthias
Принадлежит:

Pressure-sensitive safety device for monitoring a technical installation, comprising a sensor having first and second sensor cells, and first, second and third electrodes for making contact with the first and the second sensor cells. A pressure-sensitive material within the first and second sensor cells is configured, under local loading, to change an electrical property of the cells at the site of loading. An evaluation unit is configured to provide an output signal depending on an actuation of the first and second sensor cells. The first and second electrodes are connected to the first and second sensor cells, respectively, and the third electrode is connected to both the first and the second sensor cells. The first, second and third electrodes are connected to the evaluation unit by a first sequentialization element, and the first, second and third electrodes are connected to a defined first potential by a second sequentialization element. 1. Pressure-sensitive safety device for monitoring a technical installation , comprising:a sensor which has at least one first sensor cell and one second sensor cell,a first, a second and a third electrode for contacting the first and the second sensor cell,a pressure-sensitive material within the first and the second sensor cell, which is configured, under local loading, to change an electrical property of the first and the second sensor cell at the site of loading, andan evaluation unit which is configured to provide an output signal depending on the actuation of the first and the second sensor cell,wherein the first electrode is connected to the first sensor cell, the second electrode is connected to the second sensor cell, and the third electrode is connected to both the first and the second sensor cell,wherein the pressure-sensitive safety device further comprises a first sequentialization element, a second sequentialization element and a terminal for supplying a defined first potential, andwherein the first, the second ...

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Номер записи: 48
02-06-2016 дата публикации

SENSOR DEVICE

Номер: US20160153846A1
Автор: INOUE Toshio, Komatsuzaki Toshihiko
Принадлежит:

The detection range and the detection precision of a sensor device that makes use of the deformation of a viscoelastic elastomer are made variable. The sensor device comprises a magnetic viscoelastic elastomer containing electroconductive magnetic particles dispersed therein so as to demonstrate an elastic modulus that varies depending on a magnetic field applied thereto and an electric resistance in a prescribed direction that varies depending on a deformation thereof, electromagnets for applying a magnetic field that can be varied to the magnetic viscoelastic elastomer, a resistance detection circuit for detecting the electric resistance of the magnetic viscoelastic elastomer, and a control unit for computing at least one of a deformation state of the magnetic viscoelastic elastomer and a load applied to the magnetic viscoelastic elastomer according to a detection value of the resistance detection circuit and a magnitude of the magnetic field applied by the electromagnets. 1. A sensor device , comprising:a magnetic viscoelastic elastomer containing electroconductive magnetic particles dispersed therein so as to demonstrate an elastic modulus that varies depending on a magnetic field applied thereto and an electric resistance in a prescribed direction that varies depending on a deformation thereof;a magnetic field application unit for applying a magnetic field that can be varied to the magnetic viscoelastic elastomer;a resistance detection unit for detecting the electric resistance of the magnetic viscoelastic elastomer; anda computation unit for computing a load applied to the magnetic viscoelastic elastomer according to a detection value of the resistance detection unit and a magnitude of the magnetic field applied by the magnetic field application unit, the computation unit being configured such that the greater the magnitude of the magnetic field applied by the magnetic field application unit is, the greater the value of the load computed for a given detection ...

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Номер записи: 49
15-09-2022 дата публикации

PREPARATION METHOD FOR A FLEXIBLE STRESS SENSOR BASED ON A COMPOSITE MULTILAYER CONDUCTIVE MATERIAL

Номер: US20220291061A1
Автор: CHEN Baihua, He Xin, HUANG Weiqing, Li Haifeng, LIANG Tianlong, SHEN Gengzhe, YANG Weijia
Принадлежит:

The invention discloses a preparation method for a flexible stress sensor based on a composite multilayer conductive material. The method comprises the following steps: S1) preparing a PEDOT: PSS cotton cloth fiber layer; S2) preparing conductive carbon cloth; S3) preparing a metal silver nanowire conductive film; S4) preparing a flexible stress sensor, involving: packaging the PEDOT: PSS cotton cloth fiber layer, the disordered conductive carbon cloth and the silver nanowire conductive film together, and respectively leading a wire out of the PEDOT: PSS cotton cloth fiber layer and the silver nanowire conductive film to obtain the flexible stress sensor. The silver nanowire, the conductive carbon cloth and the PEDOT: PSS cotton cloth fiber cooperate with each other with different different conductivities, realizing the richer resistance variability, the wider resistance change range, higher resistance change rate and higher sensing range up to 70 kPa. 1. A preparation method for a flexible stress sensor based on a composite multilayer conductive material , wherein comprises the following steps:S1) preparing a PEDOT: PSS cotton cloth fiber layerS101) adding poly-3,4-ethoxylene dioxy thiophene monomer: polystyrene sulfonate PEDOT:PSS to a dimethyl sulfoxide DMSO solution for modification; heating and stirring in an oil bath at 40-60° C. for 0.5-2 h and dropwise adding absolute ethyl alcohol for 1-3 h to obtain a modified PEDOT:PSS conductive solution;S102) soaking the cotton cloth fiber sheet with the appropriate size into the modified PEDOT:PSS conductive solution in step S101), and stirring at room temperature for 3-5 h, and then dried at 70-100° C. for 1-3 h;S103) repeating the step S102) for 2-5 times, until the modified PEDOT:PSS conductive solution evenly penetrated and firmly attached to the cotton cloth fiber plate, to obtain PEDOT: PSS conductive cotton cloth;S104) laying the PEDOT: PSS conductive cotton cloth obtained in step S103) is on the surface of PDMS ...

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Номер записи: 50
15-09-2022 дата публикации

FORCE SENSOR

Номер: US20220291062A1
Автор: Hongo Yuki, OKADA Kazuhiro, SEKINE Miho
Принадлежит:

A strain body of a force sensor according to the present invention includes a tilting structure disposed between a force receiving body and a support body, a force-receiving-body-side deformable body connecting the force receiving body and the tilting structure, and a support-body-side deformable body connecting the tilting structure and the support body. The tilting structure includes a first tilting body that extends in a second direction orthogonal to a first direction and that is elastically deformable by the action of force in the first direction. 137.-. (canceled)38. A force sensor comprising:a force receiving body that receives action of force or moment to be targeted for detection;a support body that is disposed on one side of the force receiving body in a first direction and that supports the force receiving body;a strain body that connects the force receiving body and the support body and that is elastically deformed by the action of force or moment received by the force receiving body;a detection element that detects displacement caused by elastic deformation produced in the strain body; anda detection circuit that outputs an electric signal indicating force or moment acting on the strain body, on the basis of a detection result by the detection element, whereinthe strain body includes a tilting structure disposed between the force receiving body and the support body, a force-receiving-body-side deformable body that connects the force receiving body and the tilting structure, the force-receiving-body-side deformable body being elastically deformable by the action of force or moment received by the force receiving body, and a support-body-side deformable body that connects the tilting structure and the support body, the support-body-side deformable body being elastically deformable by the action of force or moment received by the force receiving body, andthe tilting structure includes a first tilting body that is disposed in a plane including the first ...

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Номер записи: 51
31-05-2018 дата публикации

Metal-metal composite ink and methods for forming conductive patterns

Номер: US20180149531A1
Автор: Ali Eshkeiti, Binu Baby NARAKATHU, Massood Atashbar, Mohammed Mudher Mohammed Ali
Принадлежит: Western Michigan University

A printed stretchable strain sensor is provided. The printed stretchable strain sensor has a stretchable substrate and a composite ink coupled to a surface of the stretchable substrate to form a strain-sensitive conductive structure. The composite ink includes both a nanowire and a metal flake. The capability of the fabricated strain sensor, printed in two design configurations: straight line and wavy line, was investigated by studying its electro-mechanical response towards varying elongations of 1 mm, 2 mm, and 3 mm.

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Номер записи: 52
07-05-2020 дата публикации

FORCE SENSOR

Номер: US20200141823A1
Автор: WANG Jianwen, Wang Wei, Xu Yujun
Принадлежит:

A force sensor has a first end portion (), a second end portion (), a parallel-guiding mechanism (), a beam (), and a strain gauge (). The parallel-guiding mechanism () connects the first end portion () to the second end portion (). A main beam () of the beam has a flexible wall () and a rigid wall (). A first connecting part () connects the flexible wall to the first end portion, and a second connecting part () connects the rigid wall to the second end portion. The strain gauge () is fixed to the flexible wall (). The force sensor can measure a relatively small force. 1. A force sensor , comprising:a first end portion;a second end portion;a parallel-guiding mechanism that connects the first end portion to the second end portion;a beam comprising: a main beam having a flexible wall and a rigid wall, a first connecting part that connects the first end portion to the flexible wall of the main beam, and a second connecting part that connects the second end portion to the rigid wall of the main beam; anda strain gauge that is fixed to the flexible wall.2. The force sensor of claim 1 , further comprising:a cavity in the main beam to accept arrangement of the strain gauge therein; anda cover plate for sealing the cavity in a welded manner.3. The force sensor of claim 1 , further comprising: a protrusion on an outer side of the flexible wall that is connected to the first connecting part; and two grooves positioned where the protrusion intersects the first connecting part.4. The force sensor of claim 1 , wherein the flexible wall is formed by outwardly recessing the main beam.5. The force sensor of claim 1 , wherein the strain gauge is arranged above and/or below the position where the first connecting part intersects the flexible wall.6. The force sensor of claim 1 , wherein the first connecting part is a rigid beam claim 1 , and the second connecting part is a flexible beam.7. The force sensor of claim 6 , wherein the second connecting part comprises a horizontal ...

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Номер записи: 53
07-05-2020 дата публикации

KEY UNIT AND KEY ARRAY

Номер: US20200141824A1
Автор: Li Hao
Принадлежит:

A key unit and a key array, the key unit includes a pressing panel, a key unit sensor assembly and a double-sided adhesive tape connected between the key unit sensor assembly and the pressing panel; the key unit sensor assembly includes a substrate, a first group of sensors and a second group of sensors; the first group of sensors are distributed at a central zone of the substrate, the central zone is corresponding to a key center on the pressing panel; two groups of sensors are arranged on the substrate, the first group of sensors are distributed at the central zone of the substrate, the second group of sensors are distributed at a zone of the substrate adjacent to an edge, the first group of sensors and the second group of sensors are used to detect different pressure values of the zone. 1. A key unit , comprising a pressing panel , a key unit sensor assembly and a double-sided adhesive tape connecting the key unit sensor assembly with the pressing panel;the key unit sensor assembly comprising a substrate, a first group of sensors and a second group of sensors;wherein the first group of sensors are distributed at a central zone of the substrate, the central zone corresponding to a key center on the pressing panel;the second group of sensors are distributed at a zone of the substrate other than the central zone; andthe first group of sensors and the second group of sensors are configured to detect pressure transmitted by the pressing panel to the substrate through the double-sided adhesive tape.2. The key unit according to claim 1 , wherein the central zone is in a regular or irregular shape taking a center of the substrate as its center.3. The key unit according to claim 2 , wherein the central zone is a circle zone taking the center of the substrate as its center and takes a first preset distance as its radius.4. The key unit according to claim 3 , wherein the first group of sensors is distributed along an arc of the circle zone.5. The key unit according to claim ...

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Номер записи: 54
07-05-2020 дата публикации

STRAIN SENSOR AND MANUFACTURING METHOD THEREFOR

Номер: US20200141825A1
Автор: OBATA Takayoshi
Принадлежит:

Provided is a strain sensor that includes a fixing section and a measurement section that is supported by the fixing section and can expand and contract. The strain sensor includes a base material that has a first main surface and a second main surface, which face each other, and a conductor section provided on the first main surface. The conductor section includes a detection conductor that is provided in the measurement section and that has a resistance value that changes in accordance with expansion and contraction of the base material in the measurement section. The measurement section includes a detection section in which the detection conductor is provided and a low-elastic-modulus section that increases a deformation amount with respect to an external force in the detection section. 1. A strain sensor comprising:a fixing section;a measurement section that is supported by the fixing section and can expand and contract;a base material that has a first main surface and a second main surface, which face each other; anda conductor section provided on the first main surface of the base material;wherein the conductor section includes a detection conductor that is provided in the measurement section and that has a resistance value that changes in accordance with expansion and contraction of the base material in the measurement section, andthe measurement section includes a detection section in which the detection conductor is provided and a low-elastic-modulus section that increases a deformation amount with respect to an external force in the detection section.2. The strain sensor according to claim 1 ,wherein the low-elastic-modulus section is provided so as to be separate from the detection section.3. The strain sensor according to claim 2 ,wherein the low-elastic-modulus section includes a plurality of slits that are provided in a direction that intersects an expansion/contraction direction of the detection conductor.4. The strain sensor according to claim 3 , ...

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Номер записи: 55
11-06-2015 дата публикации

LOW PROFILE MULTI-AXIS LOAD CELL

Номер: US20150160081A1
Автор: Carignan Forest J.
Принадлежит:

A compact multi-axis load cell with opposing rigid mounting elements includes annular flanges at the perimeter of the elements. A sensing region is formed between the rigid mounting elements by bonding, as by welding or brazing, opposing annular flanges at their end surfaces. To increase the mass and rigidity of the opposing mounting elements, the annular flanges may be partially formed by a peripheral groove, the groove defining a portion of an inside surface of the annular flange. The peripheral groove provides sufficient flange length for affixing strain gauges while positioning internal surfaces of the mounting elements close together in order to reduce the overall length of the load cell. Sensing circuits affixed to the outside surface of the sensing region provide output signals responsive to forces and moments exerted between the rigid mounting elements in at least two substantially perpendicular directions. 1. A multi-axis load cell comprising:first and second rigid mounting elements, each of the first and second rigid mounting elements having an internal end and an external end;at least one of the rigid mounting elements having an annular flange at the perimeter of the internal end of the element, the annular flange extending a length parallel to a central axis, the flange terminating at an end surface;the internal ends of the first and second elements being bonded together at the end surface of the annular flange of the at least one rigid mounting element, the flange forming a sensing region between the first and second rigid mounting elements.2. The multi-axis load cell of claim 1 , wherein the first and second rigid mounting elements are rigid cylindrical mounting elements claim 1 , the annular flange being concentric with the at least one rigid mounting element having the annular flange.3. The multi-axis load cell of claim 2 , wherein the internal ends of the first and second cylindrical elements are adhered bonded concentrically.4. The multi-axis load ...

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Номер записи: 56
28-08-2014 дата публикации

STITCHED STRETCH SENSOR

Номер: US20140238151A1
Автор: Dunne Lucy E., Gioberto Guido
Принадлежит: Regents of the University of Minnesota

A stitched sensor including a plurality of threads stitched to a textile in a stitch geometry is described. The plurality of threads includes a conductive thread, and the stitch geometry is configured such that an electrical property of the stitched sensor changes based on at least one of stretching, relaxation, or bending of the textile. Methods for forming a stitched sensor are also described. 1. A system comprising:a stitched sensor comprising a plurality of threads stitched to a textile in a stitch geometry, the plurality of threads comprising a conductive thread, wherein the stitch geometry is configured such that an electrical property of the stitched sensor changes based on at least one of stretching and relaxation of the textile.2. The system of claim 1 , wherein the conductive thread defines a plurality of loops in the stitch geometry.3. The system of claim 2 , wherein the plurality of loops are configured to become farther apart upon stretching of the textile and closer together upon relaxation of the textile.4. The system of claim 2 , wherein the plurality of loops are configured to become closer together upon stretching of the textile and farther apart upon relaxation of the textile.5. The system of claim 1 , wherein the electrical property of the stitched sensor is a resistance of the stitched sensor.6. The system of claim 5 , wherein the stitched sensor is configured such that resistance of the stitched sensor increases in response to stretching of the textile.7. The system of claim 5 , wherein the stitched sensor is configured such that resistance of the stitched sensor decreases in response to stretching of the textile.8. The system of claim 1 , wherein the electrical property of the stitched sensor is a resonant frequency of the stitched sensor.9. The system of claim 1 , wherein the plurality of threads comprises the conductive thread and at least one non-conductive thread.10. The system of claim 1 , wherein the stitch geometry comprises at least ...

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Номер записи: 57
15-06-2017 дата публикации

Sheet for pressure sensor, pressure sensor, and method for producing sheet for pressure sensor

Номер: US20170167928A1
Автор: Sung Won Lee, Takao Someya, Tsuyoshi Sekitani
Принадлежит: JAPAN SCIENCE AND TECHNOLOGY AGENCY

In order to provide a highly flexible and more highly sensitive ultrathin sheet for a pressure sensor, a pressure sensor, and a method for producing the sheet for a pressure sensor, a pressure sensor sheet ( 10 ) of the present invention is provided with a first electrode sheet ( 1 a ), a second electrode sheet ( 1 b ), and a flocculent pressure-sensitive conductive layer ( 3 ) composed of tangled conductive fibers ( 2 ) which is disposed between the first electrode sheet ( 1 a ) and the second electrode sheet ( 1 b ) and undergoes a change in resistance value when compressed, wherein the conductive fibers ( 2 ) extend along a direction parallel to the two electrode sheets and are stacked in a perpendicular direction, and the conductive fibers that constitute the pressure-sensitive conductive layer have spaces provided therebetween.

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Номер записи: 58
29-09-2022 дата публикации

FORCE SENSOR AND FITTING SYSTEM

Номер: US20220307928A1
Автор: Ito Koji, Tanaami Yoshikane
Принадлежит: SINTOKOGIO, LTD.

A force sensor includes a force receiver which receives a force or a moment that acts on a detection target part, and a strain element which is provided to a sensor base and which serves as an elastic support that supports the force receiver. The force sensor includes two systems of detecting sections which each independently detect strain of four beam parts of the strain element, two systems of computing circuits which each independently compute, on the basis of a detection result that has been outputted from a corresponding one of the two systems of detecting sections, the force or the moment that acts on the detection target part, and two systems of output sections which each independently output, as an electrical signal, a computation result that has been outputted from a corresponding one of the two systems of computing circuits. 1. A force sensor comprising:a sensor base;a force receiver which receives a force or a moment that acts on a detection target part;an elastic support which is provided to the sensor base, which has, at least in part, an elastic part that is elastically deformable, and which supports the force receiver;two systems of detecting sections which each independently detect strain or displacement of the elastic part of the elastic support;two systems of computing circuits which each independently compute, on the basis of a detection result that has been outputted from a corresponding one of the two systems of detecting sections, the force or the moment that acts on the detection target part; andtwo systems of output sections which each independently output, as an electrical signal, a computation result that has been outputted from a corresponding one of the two systems of computing circuits.2. The force sensor as set forth in claim 1 , wherein:the elastic support is a strain element; and a core part which is fixed to the force receiver,', 'a ring part which is fixed to the sensor base and which surrounds the core part, and', 'a plurality of ...

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Номер записи: 59
22-06-2017 дата публикации

Printed Strain Gauges for Force Measurement

Номер: US20170172687A1
Автор: Hammond, III Frank L., Smith Michael J., Wood Robert J.
Принадлежит: President and Fellows of Harvard College

In a method for printing a strain gauge on an instrument for force measurement, a deposition mask is applied to a surface of an instrument. With the deposition mask on the surface of the instrument, a strain gauge material is deposited on at least one portion of the surface exposed by aperture(s) in the deposition mask. Additionally, electrically conductive material is deposited along pathways that connect with the deposited strain gauge material. In one embodiment, the strain gauge is printed on surgical forceps. 1. A method for printing a strain gauge on an instrument for force measurement , the method comprising:applying a mask to a surface of an instrument, wherein the mask defines at least one aperture;with the mask on the surface of the instrument, depositing a strain-gauge material that has an electrical resistance that changes as a function of deformation on at least one portion of the surface exposed by the aperture(s) of the mask to form a strain gauge; anddepositing electrically conductive material along pathways that connect with the deposited strain gauge.2. The method of claim 1 , further comprising claim 1 , before depositing the strain-gauge material claim 1 , depositing an electrically insulating composition on the instrument surface.3. The method of claim 2 , wherein the electrically insulating composition comprises a p-xylylene polymer.4. The method of claim 2 , further comprising claim 2 , before depositing the electrically insulating composition:cleaning the surface to remove any remaining particles and residue; and thenpreparing the surface via at least one of mechanical and chemical preparation to promote adhesion and remove any protective coatings.5. The method of claim 1 , wherein the strain-gauge material comprises constantan.6. The method of claim 1 , wherein the deposited electrically conductive material forms at least one of an electrical trace and a contact pad.7. The method of claim 6 , wherein the electrically conductive material ...

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Номер записи: 60
21-06-2018 дата публикации

FLEXIBLE TACTILE SENSOR AND METHOD FOR MANUFACTURING THE SAME

Номер: US20180172527A1
Автор: KIM Kunnyun, Kim Won Hyo, KWAK Yeon Hwa, Park Kwang Bum
Принадлежит: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Provided are a flexible tactile sensor and a method for manufacturing the same. The flexible tactile sensor includes a polymer layer, a first metal layer formed over the polymer layer and a first sensor layer formed over the first metal layer, the first sensor layer comprising a strain gauge configured to change its resistance according to a first strain and a metal wire connected to the strain gauge. The flexible tactile sensor also includes a first cover layer configured to protect the first sensor layer, a second metal layer formed under the polymer layer, a second sensor layer formed under the second metal layer. The second sensor layer includes a strain gauge configured to change its resistance according to a second strain and a metal wire connected to the strain gauge of the second metal layer and a second cover layer configured to protect the second sensor layer. 1. A flexible tactile sensor comprising:a polymer layer;a first metal layer formed over the polymer layer,a first sensor layer formed over the first metal layer, the first sensor layer comprising a strain gauge configured to change its resistance according to a first strain and a metal wire connected to the strain gauge;a first cover layer configured to protect the first sensor layer;a second metal layer formed under the polymer layer;a second sensor layer formed under the second metal layer, the second sensor layer including a strain gauge configured to change its resistance according to a second strain and a metal wire connected to the strain gauge of the second metal layer; anda second cover layer configured to protect the second sensor layer.2. The flexible tactile sensor of claim 1 , wherein the first sensor layer includes a first pair of strain gauges claim 1 , wherein the metal wire of the first sensor layer includes a first pair of metal wires respectively connected to opposing ends of the first pair of strain gauges claim 1 , andwherein the second sensor layer includes a second pair of ...

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Номер записи: 61
22-06-2017 дата публикации

EMBROIDERED STRAIN SENSING ELEMENTS

Номер: US20170176167A1
Автор: Cleary, III Bruce A., Keller Sean Jason, Perek David R., Scally Brian Michael, Trutna Tristan Thomas
Принадлежит:

A deformation sensing fabric comprises a fabric substrate comprising a first fabric layer and a first conductive element woven into the first fabric layer. The first conductive element outputs a first instrumented signal, responsive to an applied stimulus signal, indicative of a measure of change in an electrical property of the first conductive element in response to a strain applied to the fabric substrate along a long-axis of the first conductive element. The first conductive element is instrumented by a measurement system which stimulates the first conductive element and measures an electrical property of the first conductive element. 1. A deformation sensing fabric comprising:a fabric substrate comprising a first fabric layer; anda first conductive element woven into the first fabric layer, and configured to output a first instrumented signal, responsive to an applied stimulus signal, indicative of a measure of change in an electrical property of the first conductive element in response to a strain applied to the fabric substrate along a long-axis of the first conductive element.2. The deformation sensing fabric of claim 1 , wherein:the first conductive element is configured to form a first strain gauge and the first instrumented signal, responsive to the applied stimulus signal, is indicative of a change in resistance of the first strain gauge in response to a strain applied to the fabric substrate along a length of the first strain gauge.3. The deformation sensing fabric of claim 2 , wherein:the first fabric layer comprises an electrically insulating fiber material;the first strain gauge comprises an electrically conductive elastic fiber material interwoven amidst threads of the electrically insulating fiber material.4. The deformation sensing fabric of claim 3 , wherein the electrically conductive elastic fiber material is encapsulated by an electrically insulating elastic fiber material coating configured to be interwoven amidst threads of the electrically ...

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Номер записи: 62
06-06-2019 дата публикации

METHODS AND APPARATUS TO DETECT LOAD APPLIED TO A VEHICLE SUSPENSION

Номер: US20190170567A1
Автор: Niedert Andrew, Pearson Elliott, Rogness Anton
Принадлежит:

Methods, apparatus, systems and articles of manufacture are disclosed to detect load applied to a vehicle suspension. An example apparatus includes a vehicle spring positioned between a first spring seat and a second spring seat. A cap is coupled to the first spring seat to define a cavity. A force sensor is positioned in the cavity adjacent a surface of the first spring seat. 1. An apparatus comprising:a vehicle spring positioned between a first spring seat and a second spring seat;a cap coupled to the first spring seat to define a cavity; anda force sensor positioned in the cavity adjacent a surface of the first spring seat.2. The apparatus of claim 1 , further including an isolator to engage the force sensor when the surface of the first spring seat is positioned in the cavity.3. The apparatus of claim 1 , wherein the force sensor is a thin film transducer.4. The apparatus of claim 2 , wherein the isolator is flat claim 2 , having a circumferential wall to receive the force sensor.5. The apparatus of claim 1 , wherein the force sensor is to detect a force applied to the spring seat.6. The apparatus of claim 5 , wherein the force sensor is to receive a voltage and measure a change in resistance to detect the force applied to the first spring seat.7. The apparatus of claim 1 , wherein the force sensor is printed onto the surface of the spring seat.8. The apparatus of claim 1 , wherein the force sensor has a circular shape.9. The apparatus of claim 1 , wherein the force sensor remains substantially flat when a force is applied to the sensor.10. The apparatus of claim 1 , wherein the force sensor has a dimensional thickness that is less than 5 millimeters.11. An apparatus comprising:a spring seat;means for biasing; anda force sensor positioned between the spring seat and the means for biasing.12. The apparatus of claim 11 , wherein the force sensor has a rectangular shape.13. The apparatus of claim 11 , wherein the force sensor is to detect a force applied to the ...

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Номер записи: 63
08-07-2021 дата публикации

BIONIC FLEXIBLE ACTUATOR WITH REAL-TIME FEEDBACK FUNCTION AND PREPARATION METHOD THEREOF

Номер: US20210207939A1
Автор: HAN Zhiwu, HOU TAO, LIU Linpeng, NIU Shichao, SUN TAO, WANG Dakai, WANG Kejun, ZHANG Junqiu
Принадлежит: Jilin University

A bionic flexible actuator with a real-time feedback function and a preparation method thereof. The method includes: preparing stimuli-response layer and bionic flexible strain-sensor film layer, arranging bionic V-shaped groove array structure on bionic flexible strain-sensor film layer, and sticking bionic flexible strain-sensor film layer onto stimuli-response layer through adhesive layer; stimuli-response layer is prepared by adopting following steps: mixing multi-walled carbon nanotubes and polyvinylidene fluoride after being dissolved in a solvent respectively and obtaining a mixed solution; performing a film formation process to mixed solution and embedding a first electrode to obtain stimuli-response layer. Due to sticking bionic flexible strain-sensor film layer onto stimuli-response layer, bionic flexible strain-sensor film layer can sense a deformation degree of stimuli-response layer through bionic V-shaped groove array structure, deformation of stimuli-response layer maybe be controlled by feedback of deformation information thereof. 115-. (canceled)16. A preparation method of a bionic flexible actuator with a real-time feedback function , comprising:preparing a stimuli-response layer and a bionic flexible strain-sensor film layer, arranging a bionic V-shaped groove array structure on the bionic flexible strain-sensor film layer, and sticking the bionic flexible strain-sensor film layer onto the stimuli-response layer through an adhesive layer; andpreparing the stimuli-response layer by:dissolving multi-walled carbon nanotubes and polyvinylidene fluoride in solvent respectively before mixing to obtain a mixed solution; andperforming a film formation process to the mixed solution and embedding a first electrode to obtain the stimuli-response layer.17. The preparation method according to claim 16 , wherein the bionic flexible strain-sensor film layer is prepared by:placing a cover made by polystyrene onto a container containing ethanol, then heating the ...

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Номер записи: 64
13-06-2019 дата публикации

SYSTEM AND METHOD FOR SENSOR INSTALLATION ON COMPONENT

Номер: US20190178732A1
Автор: RAJENDRAN ARUN, Sordelet Daniel Joseph, White John Allan
Принадлежит: CATERPILLAR INC.

A method for installing a sensor on a component is provided. The method includes attaching the sensor to a surface of the component. The method includes covering the sensor using a metal wire. The method includes applying a multilayer coating on the metal wire. Applying the multilayer coating includes applying a first coating. The first coating is capable of being machined. Applying the multilayer coating includes machining the first coating and applying a second coating over the first coating. The second coating is a ceramic oxide and the second coating is configured to serve as a thermal and dielectric barrier. Applying the multilayer coating also includes applying a third coating over the second coating. The third coating is configured to provide erosion resistance. 1. A method for installing a sensor on a component , the method including:attaching the sensor to a surface of the component;covering the sensor using a metal wire; and applying a first coating, wherein the first coating is capable of being machined;', 'machining the first coating;', 'applying a second coating over the first coating, wherein the second coating is a ceramic oxide, the second coating configured to serve as a thermal and dielectric barrier; and', 'applying a third coating over the second coating, wherein the third coating is configured to provide erosion resistance., 'applying a multilayer coating on the metal wire, wherein applying a multilayer coating includes2. The method of claim 1 , wherein attaching the sensor further includes applying an adhesive on the surface.3. The method of claim 1 , wherein attaching the sensor further includes tack welding the sensor to the surface.4. The method of claim 1 , wherein covering the sensor includes wrapping the metal wire around the sensor.5. The method of claim 1 , wherein the sensor is a strain gauge.6. A component having a sensor installed thereon using process steps of:attaching the sensor to a surface of the component;covering the sensor ...

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Номер записи: 65
04-06-2020 дата публикации

SENSING DEVICE OF PRESSURE AND TEMPERATURE IN MOLD

Номер: US20200173871A1
Автор: CHEN Shuo-Ching, TSAI Hsiu-An
Принадлежит:

A sensing device of pressure and temperature in a mold comprises: a housing communicating with a mold cavity, and including a channel and an accommodating space; a base on a bottom surface of the housing, and including a mesa on a top; a strut in the accommodating space, and a front end thereof extended into the channel and exposed to the mold cavity; a strain structure between the mesa and a back end of the strut, and located on the mesa; a strain gage on the strain structure to measure a deformation amount of the strain structure the mold cavity and transforming the deformation amount into deformation amount information; a temperature-sensing element in the strut to measure a temperature of the strut, and transforming the temperature into strut temperature information; and a processing unit to obtain the deformation amount information and the strut temperature information. 1. A sensing device of pressure and temperature in a mold , a structure of the sensing device comprising:a housing, disposed in the mold and exposing a top surface to a mold cavity of the mold, wherein the top surface comprises a hollowly disposed channel and is in communication with an accommodating space in the housing, and a bottom surface of the housing comprises an open end in communication with the accommodating space;a base, disposed on the bottom surface of the housing to close the accommodating space, and comprising a mesa on a top, wherein a through hole is disposed in a center of the base;a strut, disposed in the accommodating space, wherein a front end of the strut is extended into the channel and exposed to the mold cavity, so that after the front end transfers pressure of the mold cavity, the strut performs an axial displacement in the channel;a strain structure, disposed between the mesa and the strut and configured to transform the pressure transferred by the displacement of the strut into a deformation amount of the strain structure;at least one strain gage, disposed on the ...

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Номер записи: 66
05-07-2018 дата публикации

FORCE MEASUREMENT DEVICE

Номер: US20180188122A1
Автор: BORO Jonathan Victor Samuel, COOPER Stephen Vance, Kalaydjiyski Ludmil Borissov, MILLER Jesse Wayne, TEMPLE Ben, Vassilev Angel Georgiev, Yanev Kostadin Dimitrov
Принадлежит:

Force measurement systems and methods are disclosed for accurate real-time measurement of forces. The system is configured to measure force as a function of time. The system may comprise a handheld device capable of measuring a force externally applied to opposing surface regions thereof for the purpose of monitoring or directing isometric exercises for personal wellness. Additionally, the system may be configured to communicate force measurement data to a remote device or server. 1. A force measurement system , comprising:a housing body comprising a plurality of surface regions configured to receive forces exerted thereupon, wherein at least two individual ones of the plurality of surface regions are configured to move relative to one another responsive to application of the forces;one or more force sensors configured to generate output signals conveying information related to the forces;a power supply; andan electronics assembly including one or more processors, wherein the electronics assembly is operatively coupled to the one or more force sensors and the power supply, and wherein the force sensors, the power supply, and the electronics assembly are housed by the housing body; and process the sensor output signals to convert and/or amplify the information related to the forces to produce a voltage signal; and', 'communicate the voltage signal to a remote computing device not housed by the housing body., 'wherein the one or more processors are configured by machine readable instructions to2. The force measurement system of claim 1 , wherein the remote computing device is configured to receive the processed sensor output signals and determine an aggregated force value associated with the sensor output signals.3. The force measurement system of claim 1 , wherein the one or more force sensors are selected from a group consisting of force sensing resistors claim 1 , load cells using strain gauges claim 1 , displacement sensors including linear variable differential ...

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Номер записи: 67
11-06-2020 дата публикации

Test Strip for Seals

Номер: US20200182748A1
Автор: DINTHEER Andreas
Принадлежит:

A test strip for checking a contact pressure of a seal has a checking element. By means of the checking element, the test strip indicates whether the contact pressure is less than or greater than specified contact pressure. The test strip indicates whether the contact pressure lies within a specified range. There preferably two weakening lines for this purpose, which tear at different contact pressures when tension is applied while the test strip is clamped. 1. A test strip for checking a contact pressure of a seal , the test strip comprising:a control element,a) wherein the test strip indicates via the control element whether the contact pressure is lower than a specified contact pressure, orb) wherein the test strip indicates via the control element whether the contact pressure is higher than the specified contact pressure.2. The test strip as claimed in claim 1 , wherein the control element indicates both whether the contact pressure is lower than the specified contact pressure and whether the contact pressure is higher than the specified contact pressure.3. The test strip as claimed in claim 1 , wherein the control element is a mechanical claim 1 , an optical claim 1 , an acoustic or an electronic element.4. The test strip as claimed in claim 1 , wherein the control element is a strain gauge.5. The test strip as claimed in claim 1 , wherein the control element is a tear line which tears at the specified contact pressure.6. The test strip as claimed in claim 5 , wherein the tear line is a perforation.7. The test strip as claimed in claim 1 , the test strip indicating whether the contact pressure lies within a specified range.8. The test strip as claimed in claim 7 , wherein the control element is a first control element for detecting a minimum specified contact pressure claim 7 , and wherein the test strip comprises a second control element for detecting a maximum specified contact pressure.9. The test strip as claimed in claim 8 , wherein the first control ...

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Номер записи: 68
23-07-2015 дата публикации

PRESSURE SENSOR, ACCELERATION SENSOR, AND METHOD FOR MANUFACTURING PRESSURE SENSOR

Номер: US20150204739A1
Автор: Fuji Yoshihiko, FUKUZAWA Hideaki, Hara Michiko, Higashi Yoshihiro
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, a pressure sensor includes a base and a sensor unit provided on the base. The sensor unit includes a transducing thin film having a first surface, a first strain sensing element provided on the first surface, and a second strain sensing element provided on the first surface. The first strain sensing element includes a first magnetic layer, a first film having a first oxygen concentration, a second magnetic layer provided between the first magnetic layer and the first film, and a first intermediate layer provided between the first and the second magnetic layer. The second strain sensing element includes a third magnetic layer, a second film having a second oxygen concentration different from the first concentration, a fourth magnetic layer provided between the third magnetic layer and the second film, and a second intermediate layer provided between the third and the fourth magnetic layer. 1. A pressure sensor , comprising:a base; anda sensor unit provided on the base, a transducing thin film having a first surface and being flexible;', 'a first strain sensing element provided on the first surface; and', 'a second strain sensing element provided on the first surface and separated from the first strain sensing element,, 'the sensor unit including a first magnetic layer having a first magnetization being changeable;', 'a first film including oxygen at a first oxygen concentration;', 'a second magnetic layer provided between the first magnetic layer and the first film, the second magnetic layer having a second magnetization being fixed; and', 'a first intermediate layer provided between the first magnetic layer and the second magnetic layer,, 'the first strain sensing element including a third magnetic layer having a third magnetization being changeable;', 'a second film having a second oxygen concentration different from the first oxygen concentration;', 'a fourth magnetic layer provided between the third magnetic layer and the second film, ...

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Номер записи: 69
18-06-2020 дата публикации

Force/Torque Sensor Temperature Compensation

Номер: US20200191665A1
Автор: Fleissner David, Glusiec Andrew
Принадлежит:

Strain gages on a robotic force/torque sensor are individually temperature compensated prior to resolving the gage outputs to estimate force and torque loads on the sensor. Thermal sensors are mounted proximate each strain gage, and the initial gate and thermal sensor outputs at a known load and temperature are obtained. The force/torque sensor then undergoes warming, and strain gage and thermal sensor outputs are again obtained. These gage and thermal sensor outputs are processed to calculate coefficients to a temperature compensation equation, such as by using a least squares algorithm. Each strain gage output is compensated using the temperature compensation equation, and the temperature-compensated outputs of the strain gages are then combined to resolve temperature-compensated force and torque values. 1. A temperature-compensated method of operating a robotic force/torque sensor having a Tool Adapter Plate (TAP) operative to be connected to a first object and a Mounting Adapter Plate (MAP) operative to be connected to a second object , the force/torque sensor being operative to measure the direction and magnitude of force and torque between the first and second objects , the method comprising:obtaining initial outputs of strain gages affixed to members connecting the MAP and TAP and thermal sensors measuring the temperature of the MAP and TAP, at a known load and temperature;obtaining strain gage and thermal sensor outputs after the sensor undergoes a temperature change;calculating coefficients to a per-gage temperature compensation equation based on the initial outputs and outputs after the temperature change;compensating each strain gage output using the temperature compensation equation; andcombining the temperature-compensated outputs of all strain gages to resolve temperature-compensated force and torque values.2. The method of wherein:the thermal sensors measure a thermal gradient between the MAP and TAP of the robotic force/torque sensor; andthe per-gage ...

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Номер записи: 70
19-07-2018 дата публикации

MULTILAYER TACTILE SENSOR WITH FASTENING MEANS

Номер: US20180202874A1
Автор: IBROCEVIC Onedin, KUCZERA Matthias, NEUSCHWANDER Bernd, SCHWEIKER Matthias
Принадлежит:

Multilayer tactile sensor with a first layer that comprises a first electrode, a second layer that comprises a second electrode and an intermediate layer of pressure-sensitive material that is disposed between the first and second layers and that spaces apart the first electrode from the second electrode. The sensor further comprises a fastening means for fixing the first and second electrodes relative to each other. At least the first electrode is made of electrically conductive yarn and extends along a defined longitudinal direction. The fastening means comprises at least a first seam that extends in the longitudinal direction and that comprises at least one thread that is fed repeatedly multiple times through the pressure-sensitive material in order to fix the first electrode in a defined position. 1. Multilayer tactile sensor with a first layer comprising a first electrode , a second layer comprising a second electrode and an intermediate layer of pressure-sensitive material that is disposed between the first and second layers and spaces apart the first electrode from the second electrode , and a fastening means for fixing the first and second electrodes in relation to each other ,wherein at least the first electrode is made of electrically conductive yarn and extends along a defined longitudinal direction L, andwherein the fastening means comprises at least a first seam that extends along the longitudinal direction L and that comprises at least one thread that is fed repeatedly multiple times through the pressure-sensitive material in order to fix the first electrode in a defined position.2. Multilayer tactile sensor according to claim 1 , wherein the first seam comprises a number of entry and exit openings that are disposed in parallel and at a defined distance from the conductive yarn of the first electrode.3. Multilayer tactile sensor according to claim 1 , wherein the first layer is a first textile sheet into which the first electrode is sewn or woven and ...

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Номер записи: 71
09-10-2014 дата публикации

LOAD DETECTING DEVICE

Номер: US20140298923A1
Автор: Geldman Chaim
Принадлежит: VISHAY ADVANCED TECHNOLOGIES, LTD.

A load detecting device for attachment to a structure under load comprises a carrier unit and a plurality of strain gages. The carrier unit comprises a first and a second mounting section arranged along a longitudinal axis and connected by a sensing section, wherein the plurality of strain gages are arranged at the sensing section of the carrier unit. The sensing section includes two connecting elements extending along the longitudinal axis between the first mounting section and the second mounting section, each of the connecting elements being curved and having a convex side, the convex sides of the two connecting elements facing each other. 1. A load detecting device for attachment to a structure under load , comprising a carrier unit and a plurality of strain gages , wherein the carrier unit comprises a first and a second mounting section arranged along a longitudinal axis and connected by a sensing section , wherein the plurality of strain gages are arranged at the sensing section of the carrier unit , and wherein the sensing section includes two connecting elements extending along the longitudinal axis between the first mounting section and the second mounting section , each of the connecting elements being curved and having a convex side , the convex sides of the two connecting elements facing each other.2. A load detecting device according to claim 1 ,wherein the connecting elements have an at least substantially constant cross section.3. A load detecting device according to claim 1 ,wherein each of the connecting elements has the same cross section.4. A load detecting device according to claim 1 ,wherein each of the connecting elements has a flat rectangular cross section defined by a long dimension and a short dimension, the long dimension of the cross section of one of the two connecting elements being oriented in the same direction as the long dimension of the cross section of the other of the two connecting elements.5. A load detecting device according ...

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Номер записи: 72
27-07-2017 дата публикации

PRESSURE MEASUREMENT APPARATUS AND PROGRAM FOR MEASURING PRESSURE

Номер: US20170211994A1
Автор: Ozeki Akira, YAMAMOTO Hisashi
Принадлежит:

A pressure measurement device includes a platen, a pressure sensor, a signal acquisition section, and a data processing section. The pressure sensor includes a plurality of pressure-sensitive points arranged on the platen. The signal acquisition section is configured to acquire measurement data that is obtained when a measurement object in contact with a surface of the platen passes over the pressure sensor a plurality of times. The measurement object moves relative to the platen and along a circular orbit on the platen. The data processing section is configured to calculate periods in each of which the measurement object passes over the pressure sensor and to acquire period data for each of the periods from the measurement data. 1. A pressure measurement device comprising:a platen;a pressure sensor including a plurality of pressure-sensitive points arranged on the platen;a signal acquisition section configured to acquire measurement data obtained when a measurement object in contact with a surface of the platen passes over the pressure sensor a plurality of times, the measurement object moving relative to the platen and along a circular orbit on the platen; anda data processing section configured to calculate periods in each of which the measurement object passes over the pressure sensor, and configured to acquire period data for each of the periods from the measurement data.2. The pressure measurement device according to claim 1 , wherein the pressure-sensitive points are arranged linearly.3. The pressure measurement device according to or claim 1 , comprisinga coating film covering a surface of the pressure sensor, the coating film having a surface area larger than a surface area of a surface of the measurement object, the surface of the measurement object being in contact with the platen.4. A non-transitory computer-readable medium having computer-executable instructions for performing a method of measuring pressure claim 1 , the method comprising:acquiring ...

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Номер записи: 73
03-08-2017 дата публикации

BENDABLE DISPLAY APPARATUS

Номер: US20170219444A1
Автор: Im Kiju, Kim Minsung, NGUYEN THANHTIEN
Принадлежит:

A display apparatus includes a substrate including a first area, a second area, and a bending area, the bending area disposed between the first area and the second area and bending about a bending axis running along a first direction; a first piezoelectric device disposed over the bending area; and a pressure sensor. The first piezoelectric device is configured to contract or expand according to a pressure variation sensed by the pressure sensor. 1. A display apparatus , comprising:a substrate comprising a first area, a second area, and a bending area, the bending area disposed between the first area and the second area and extending in a first direction;a first piezoelectric device disposed over the bending area; anda pressure sensor,wherein the first piezoelectric device is configured to contract or expand according a pressure variation sensed by the pressure sensor.2. The display apparatus of claim 1 , wherein the pressure sensor comprises a strain gauge.3. The display apparatus of claim 1 , further comprising a first wire electrically connected to the first piezoelectric device claim 1 ,wherein the pressure sensor senses the pressure variation depending on a resistance variation of the first wire.4. The display apparatus of claim 1 , wherein the first piezoelectric device extends primarily in the first direction claim 1 , and the display apparatus further comprises:a first wire disposed at a first side of the first piezoelectric device and extending primarily in a second direction that crosses the first direction, the first wire being electrically connected to the first piezoelectric device and extending primarily in the first direction; anda second wire disposed at a second side of the first piezoelectric device, wherein the second side is opposite to the first side, the second wire being electrically connected to the first piezoelectric device and extending in the first direction.5. The display apparatus of claim 4 , wherein each of the first wire and the ...

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Номер записи: 74
03-08-2017 дата публикации

Pressure sensor containing mechanically deforming elements

Номер: US20170219447A1
Автор: Peter Ovaere, Pieter-Jan SCHEPENS
Принадлежит: Mersen Benelux BV

The invention has the objective of offering a sensor the allows for measuring the pressure force of the springs on the carbon brushes as well as the actual brush pressure on its contact surface. This is obtained by measuring between the carbon brush, and there is limited space through its holder, and the contact surface and is therefore characterized by the fact that the sensor is thinner than 4 mm, and that it is provided with a target ( 4 ) which is suspended in the sensor ( 1 ) by means of a mechanically deformable section ( 3 ), and where the sensor is fitted with one or more strain gauges ( 2 ) that is/are set up as such that it can detect the shearing of the mechanical deformable measuring section under pressure. In contrast to the existing measuring sensors, the measuring strips also connect the suspension points of the mechanically deformable elements with the sensor and/or the suspended target or measuring point through which sensitivity increases and makes the sensor useful for such applications.

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Номер записи: 75
02-08-2018 дата публикации

STRAIN GAUGE, LOAD SENSOR, AND METHOD FOR MANUFACTURING STRAIN GAUGE

Номер: US20180217016A1
Автор: EHARA Yosuke, INAMORI Dohaku, KARAKI Tadahiko
Принадлежит:

The strain gage includes: a substrate formed from a resin material: a resistor provided on a surface of the substrate; and a fusion layer provided on an opposite surface, to the surface on which the resistor is provided. The fusion layer is a thermoplastic polyimide layer. There is provided the strain gage that has a thickness of as thin as possible and that makes a manufacture process of a load sensor simpler. 1. A strain gage , comprising:a substrate formed from a resin material;a resistor provided on a surface of the substrate; anda fusion layer provided on an opposite surface to the surface on which the resistor is provided,wherein the fusion layer is a thermoplastic polyimide layer.2. The strain gage according to claim 1 , further comprising a protective cover which covers the resistor.3. The strain gage according to claim 1 , wherein the fusion layer has a thickness of 3 to 12 μm.4. The strain gage according to claim 1 , wherein the resin material is polyimide.5. The strain gage according to claim 1 , wherein the thermoplastic polyimide layer contains filler and/or a resin other than the thermoplastic polyimide.6. The strain gage according to claim 5 , wherein the thermoplastic polyimide layer contains the resin other than the thermoplastic polyimide claim 5 , andthe resin other than the thermoplastic polyimide is an epoxy resin.7. The strain gage according to claim 5 , wherein the thermoplastic polyimide layer contains the resin other than the thermoplastic polyimide claim 5 , andthe resin other than the thermoplastic polyimide is a phenol resin.8. The strain gage according to claim 5 , wherein the thermoplastic polyimide layer contains the resin other than the thermoplastic polyimide claim 5 , andthe resin other than the thermoplastic polyimide is an engineering plastic.9. The strain gage according to claim 5 , wherein the thermoplastic polyimide layer contains the filler claim 5 , andthe filler is inorganic fine particles.10. A load sensor comprising:a ...

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Номер записи: 76
06-11-2014 дата публикации

Device for contacting at least one conducting track of a filling-level sensor

Номер: US20140326065A1
Автор: Benner Hans-Guenter, Pauer Bernd, Peter Robert
Принадлежит:

A device for contacting at least one conducting track has a contact spring that is connected to a pivotable bow by a pivot bearing. The contact spring also has spring elements connected in series for preloading contacts against the conducting track. An axis of the pivot bearing is arranged parallel to the direction of motion of the contacts over the conducting tracks. 19-. (canceled)1091. A device for making contact with at least one conductor track () of a filling level sensor () , comprising:{'b': 6', '9, 'at least one bow () pivotable over the conductor track ();'}{'b': 10', '6', '16', '17, 'a contact spring () arranged on the bow () and having at least one spring element (, );'}{'b': 11', '9', '16', '17', '10, 'at least one contact () prestressed against the conductor track () by at least one spring element (, ) of the contact spring (),'}{'b': 6', '11', '6', '11', '16', '17', '10, 'wherein the bow () is configured such that movement of the at least one contact () during pivoting of the bow () corresponds to an arc, and the contact () is fabricated in one piece with the at least one spring element (, ) of the contact spring (), and'}{'b': 6', '12', '13', '12', '11', '9, 'wherein the bow () has a rotary bearing (), and an axis () of the rotary bearing () is arranged parallel to a direction of movement of the at least one contact () over the conductor tracks ().'}111312119. The device as claimed in claim 10 , wherein the at least one contact comprises two contacts claim 10 , and wherein the axis () of the rotary bearing () forms an equilateral triangle with the two contacts () claim 10 , which are prestressed against a conductor track ().12101617. The device as claimed in claim 10 , wherein the at least one spring element of the contact spring () comprises first spring elements () and second spring elements () claim 10 , which are fabricated in one piece and arranged in series.1311161619. The device as claimed in claim 11 , wherein the two contacts () are each ...

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Номер записи: 77
26-08-2021 дата публикации

FORCE SENSOR

Номер: US20210262871A1
Автор: Hongo Yuki, OKADA Kazuhiro, SEKINE Miho
Принадлежит: TRI-FORCE MANAGEMENT CORPORATION

A strain body of a force sensor according to the present invention includes a tilting structure disposed between a force receiving body and a support body, a force-receiving-body-side deformable body connecting the force receiving body and the tilting structure, and a support-body-side deformable body connecting the tilting structure and the support body. The tilting structure includes a first tilting body that extends in a second direction orthogonal to a first direction and that is elastically deformable by the action of force in the first direction. 137-. (canceled)38. A force sensor comprising:a force receiving body that receives action of force or moment to be targeted for detection;a support body that is disposed on one side of the force receiving body in a first direction and that supports the force receiving body;a strain body that connects the force receiving body and the support body and that is elastically deformed by the action of force or moment received by the force receiving body;a detection element that detects displacement caused by elastic deformation produced in the strain body; anda detection circuit that outputs an electric signal indicating force or moment acting on the strain body, on the basis of a detection result by the detection element, whereinthe strain body includes a tilting structure disposed between the force receiving body and the support body, a force-receiving-body-side deformable body that connects the force receiving body and the tilting structure, the force-receiving-body-side deformable body being elastically deformable by the action of force or moment received by the force receiving body, and a support-body-side deformable body that connects the tilting structure and the support body, the support-body-side deformable body being elastically deformable by the action of force or moment received by the force receiving body, andthe tilting structure includes a first tilting body that is disposed in a plane including the first ...

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Номер записи: 78
26-08-2021 дата публикации

CAPSULE DEVICE FOR PRESSURE MEASURING

Номер: US20210262872A1
Автор: Duan Xiaodong, LIU Lei, ZHANG Shaobang
Принадлежит:

The present invention discloses a capsule device for pressure measurement. The capsule device comprises a capsule enclosure, a data transmission assembly and a thin film pressure sensor. The capsule enclosure is formed with an accommodating chamber, and the data transmission assembly is arranged in the accommodating chamber. The thin film pressure sensor is attached to the outer surface of the capsule enclosure to measure pressure, and the thin film pressure sensor is connected with the data transmission assembly. 1. A capsule device for pressure measuring , comprisesa capsule enclosure,a data transmission assembly and wherein', 'the capsule enclosure is formed with an accommodating chamber;', 'the data transmission assembly is arranged in the accommodating chamber; and, 'a thin film pressure sensor;'} a circuit layer,', 'a bonding layer and', 'a functional film layer, wherein', 'the circuit layer and the functional film layer are bonded together through the bonding layer, and', 'the circuit layer is attached to the outer surface of the capsule enclosure;, 'one or more thin film pressure sensors, attached to the outer surface of the capsule enclosure, each comprising'}wherein each thin film pressure sensor is connected with the data transmission assembly;2. The capsule device of claim 1 , wherein the capsule enclosure comprises a cylindrical side wall claim 1 , andthe thin film pressure sensor is attached to the outer surface of the side wall alongthe circumferential direction of the side wall.3. The capsule device of claim 1 , wherein the capsule device further comprises a first vent passage claim 1 , and whereinone end of the first vent passage is connected to the thin film pressure sensor, andthe other end of the first vent passage is connected to the accommodating chamber.4. The capsule device of claim 3 , wherein the capsule device further comprises a signal line claim 3 , and whereinone end of the signal line is connected to the thin film pressure sensor, ...

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Номер записи: 79
26-08-2021 дата публикации

STRAIN GAUGE INSULATED AGAINST MOISTURE PENETRATION AND METHOD OF MANUFACTURING SAME

Номер: US20210262873A1
Автор: EMERY Jean-Christophe, SHI Zhiguo, Xu Lei, Zhu XiangQun
Принадлежит:

A strain gauge (A, B, A, B, ) and method of manufacturing a strain gauge (A, B, A, B, ) against moisture penetration comprises or includes the step of producing a coated base or cover layer () by forming a moisture barrier coating () on the surface the latter. 1. A strain gauge insulated against moisture penetration , the strain gauge comprising:a base layer of a polymer substrate foil material;a resistor track layer on a metallic resistive foil material, the resistor track being in the shape of a meandering structure and having electrode pads for contacting the resistor track, the resistor track layer being laminated together with the base layer; anda strain gauge produced by means of a chemical etching method on the laminated base and resistor track layers; a moisture barrier coating is formed, by means of a deposition process, on all sides of the base layer so that the moisture barrier coating encapsulates the base layer; or', 'the strain gauge further comprises a cover layer of a polymer film foil material and with a moisture barrier coating is formed, by means of a deposition process, on at least one side of the cover layer, providing a coated cover layer that is overlaid on the surface of the resistor track layer to cover at least part of the strain gauge., 'wherein at least one of the following obtains2. The strain gauge of claim 1 , further comprising:additional metallic material from the resistor track layer that overlies the surface of the strain gauge which is uncovered from the coated cover layer; such that no electrically conductive connection exists between the additional metallic material and the resistor track or the electrode pads.3. The strain gauge of claim 1 , wherein:the coated cover layer is overlaid to cover the entire strain gauge, andan opening is made through the coated cover layer to the electrode pads of the strain gauge.4. The strain gauge of claim 1 , wherein:the moisture barrier coating is deposited on at least the top and bottom sides ...

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Номер записи: 80
26-08-2021 дата публикации

NANOCOMPOSITE MATERIAL AND USES THEREOF

Номер: US20210262875A1
Автор: "ODRISCOLL Daniel", Boland Conor, Coleman Jonathan, McMahon Sean
Принадлежит: THE PROVOST, FELLOWS, SCHOLARS AND OTHER MEMBERS OF BOARD, OF TRINITY COLLEGE OF DUBLIN

An ink blend consisting of a polymer, a weakly cross-linking agent and a nanomaterial deposited to form a thin polymer-nanomaterial composite film with unique mechanical and electrical properties suitable for high performance strain sensing applications. 1. A printed nanocomposite material comprising a polymer , a cross-linking agent that forms transient crosslinks between two or more polymer chains , and a conductive nanomaterial , wherein the nanocomposite material is printed in the form of a film or a sheet.2. The printed nanocomposite material according to claim 1 , wherein the film or sheet of printed nanocomposite material has a thickness of between about 5 nm to about 500 μm.3. The printed nanocomposite material according to claim 1 , wherein the conductive nanomaterial is selected from the group comprising graphene claim 1 , reduced graphene oxide claim 1 , metallic nano-particles (MNPs) claim 1 , metallic nano-platelets claim 1 , metallic nanowires (MNWs) claim 1 , carbon fibres claim 1 , carbon black claim 1 , carbon nanotubes (CNTs) claim 1 , and multi-walled carbon nanotubes (MWCNTs).4. The printed nanocomposite material according to wherein the polymer is an elastomer selected from the group comprising polybutadiene claim 1 , butadiene and acrylonitrile copolymers (NBR) claim 1 , natural and synthetic rubber claim 1 , polyesteramide claim 1 , chloropene rubbers claim 1 , poly(styrene-b-butadiene) copolymers claim 1 , polysiloxanes (such as polydimethylsiloxane (PDMS) (or silicone oil)) claim 1 , polyisoprene claim 1 , polyurethane claim 1 , polychloroprene claim 1 , chlorinated polyethylene claim 1 , polyester/ether urethane claim 1 , polyurethane claim 1 , polyethylene propylene claim 1 , chlorosulphanated polyethylene claim 1 , polyalkylene oxide claim 1 , flurosilicone claim 1 , highly saturated nitrile (HSN claim 1 , HNBR) claim 1 , nitrile claim 1 , polyacrylate claim 1 , silicone claim 1 , fluorinated ethylene propylene (FEP) claim 1 , a ...

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Номер записи: 81
26-08-2021 дата публикации

SLIP SENSOR

Номер: US20210262879A1
Автор: Adachi Shigeyuki, ASAKAWA Toshiaki, IIJIMA Hirotsugu, KITAMURA Atsushi, SUZUKI Tomoyuki, Yamaguchi Shinya
Принадлежит:

A slip sensor includes a first insulating layer of which one side is a side of receiving a force and of which another side includes multiple first resistive portions, the first resistive portions, of which a longitudinal direction of each is directed to a first direction, being juxtaposed. The slip sensor includes a second insulating layer of which one side includes multiple second resistive portions, the second resistive portions, of which a longitudinal direction of each is directed to the first direction, being juxtaposed. The slip sensor includes a member disposed between the another side of the first insulating layer and the one side of the second insulating layer, the member being configured to elastically deform in accordance with the force. Each first resistive portion is disposed facing a given second resistive portion, the member being provided between a given first resistive portion and the given second resistive portion. A pair of electrodes is provided on both end portions of each of the first resistive portions and the second resistive portions. A difference between a resistance value set between a given pair of electrodes associated with a given first resistive portion and a resistance value set between a given pair of electrodes associated with a given second resistive portion facing the given first resistive portion continuously varies in accordance with elastic deformation of the member that is caused by a shear force. 1. A slip sensor comprising:a first insulating layer of which one side is a side of receiving a force and of which another side includes multiple first resistive portions, the first resistive portions, of which a longitudinal direction of each is directed to a first direction, being juxtaposed;a second insulating layer of which one side includes multiple second resistive portions, the second resistive portions, of which a longitudinal direction of each is directed to the first direction, being juxtaposed; anda member disposed between ...

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Номер записи: 82
30-07-2020 дата публикации

TRIPEDAL FLEXURE MEMBER AND LOAD/TORQUE MEASUREMENT SYSTEMS USING SAME

Номер: US20200240858A1
Автор: Lisiak Maciej
Принадлежит:

A flexure structure comprising the unitary combination of three modified S-shaped beams arranged in parallel and sharing common top and bottom structures. The outside beams are oriented alike in one direction while the inside or center beam is oriented in the opposite direction. The outside edge surfaces of the beams are flat and are instrumented with strain sensors connected in bridge circuits. 1. A tripedal flexure comprising the unitary combination of:a pair of substantially S-shaped outside beams with reversely curved upper and lower portions with edge surfaces; anda single substantially S-shaped center beam having reversely curved upper and lower portions with edge surfaces;the upper and lower portions of the outside beams being oriented in the same direction whereas the upper and lower curved portions of the center beam are oriented in the opposite direction;the beams being spaced apart from one another along the upper and lower curved portions but integrally joined to form a common top structure and a common base structure; whereineach of the beams provides strain concentration areas.2. The flexure defined in claim 1 , further including strain sensing elements applied to at least some of said areas.3. The tripedal flexure defined in wherein each of said outside and center beams has opposite exposed edge surfaces claim 1 , the exposed edge surfaces of the center beam being oriented opposite to the edge surfaces of the outside beams; the edge surfaces on the inside of the S-portions being curved whereas the edge surfaces on the outside of the S-portions are flat.4. A tripedal flexure as defined in wherein said strain sensing elements are variable resistors applied to said flat edge surfaces.5. A tripedal flexure as defined in wherein all of the flat edge surfaces areas are provided with variable resistance strain sensing devices thereby to allow said flexure to measure all or any of tension forces claim 3 , compression forces and/or torque.6. A flexure as ...

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Номер записи: 83
30-07-2020 дата публикации

HIGH-SENSITIVITY SENSOR CONTAINING LINEARLY INDUCED CRACKS AND METHOD FOR MANUFACTURING SAME

Номер: US20200240859A1
Автор: CHOI Man Soo, CHOI Yong Whan, KANG Daeshik, LEE Gunhee, LEE Taemin, PETRO Pikhitsa
Принадлежит:

Provided is a high-sensitivity sensor having a conductive thin film containing linearly induced cracks. The high-sensitivity sensor relates to a sensor, obtained by forming linearly induced microcracks on a conductive thin film formed on a support, for measuring external tensile and pressure by measuring a change in the electrical resistance due to modification, short-circuiting, or openings in micro-joining structures formed by the microcracks. The high-sensitivity conductive crack sensor may be applied to high-precision measurements or artificial skins, and may be utilized as a positioning detection sensor by pixelating the sensor. Thus, the high-sensitivity sensor may be effectively used in the fields of precise measurements, bio-measurement devices through human skin, human motion measuring sensors, display panel sensors, etc. 1. A high-sensitivity sensor , comprising:a flexible support having a hole pattern formed therein; anda conductive thin film formed on at least one surface of the support,wherein the conductive thin film includes a linearly induced crack having a crack plane contacting at least a part of the surfaces and facing each other,wherein the crack plane is linearly induced by a regular hole pattern formed on the flexible support,wherein the high sensitivity sensor measures an external stimulus by measurement of an electrical change caused by a change in contact area or a short circuit or re-contact while the crack plane moves according to an external physical stimulus.2. The high-sensitivity sensor according to claim 1 , wherein on the crack plane claim 1 , a stress due to an external force is concentrated between adjacent holes claim 1 , and thereby a crack is induced in a straight line along the hole pattern.3. The high-sensitivity sensor according to claim 1 , wherein the crack plane is provided between adjacent holes and the length G of the crack plane has a length of 60% or more with respect to the straight line P connecting the centers of ...

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Номер записи: 84
15-08-2019 дата публикации

STRAIN GAUGE AND METHOD FOR PRODUCING A STRAIN GAUGE

Номер: US20190249978A1
Автор: HOFMANN ALEXANDER
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A strain gauge for measuring force and strain is provided that has reduced susceptibility to interfering electromagnetic fields. The strain gage includes a first insulation layer, which has a top side, a resistance element, which is arranged on the top side of the first insulation layer, a second insulation layer, which is arranged on the resistance element and which is joined to the first insulation layer at least in some sections, and an electrically conductive layer, which is arranged on the second insulation layer. 1. A strain gauge for force and strain measurement , comprising:a first insulation layer having an upper side,a resistance element arranged on the upper side of the first insulation layer,a second insulation layer arranged on the resistance element, the second insulation layer at least locally connected to the first insulation layer, andan electrically conductive layer arranged on the second insulation layer.2. The strain gauge as claimed in claim 1 , wherein the resistance element is arranged in a pattern on the upper side of the first insulation layer claim 1 , forming at least one resistance element section and at least one resistance element-free section on the upper side.3. The strain gauge as claimed in claim 2 , wherein the first insulation layer has a lower side claim 2 , the second insulation layer has an outer side on a side facing away from the upper side of the first insulation layer claim 2 , the first insulation layer and the second insulation layer have at least one continuous material recess claim 2 , which extends from the outer side of the second insulation layer to the lower side of the first insulation layer and is arranged in the at least one resistance element-free section claim 2 , and the electrically conductive layer is arranged on the outer side of the second insulation layer and in the continuous material recess.4. The strain gauge as claimed in claim 1 , wherein the resistance element has meandering patterning.5. A method ...

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Номер записи: 85
14-10-2021 дата публикации

STRAIN SENSOR MODULE

Номер: US20210318190A1
Автор: Shinoda Koji
Принадлежит: HOSIDEN CORPORATION

A strain sensor module comprises a base material, a sensor part including a plurality of sensor electrodes for detecting a strain formed on the base material and a lead-out wiring for connecting the plurality of sensor electrodes in series, and a terminal part which is electrically connected to an external circuit. 1. A strain sensor module comprisinga base material;a sensor part including a plurality of sensor electrodes for detecting a strain formed on the base material, and a lead-out wiring for connecting the plurality of sensor electrodes in series; anda terminal part that is electrically connected to an external circuit.2. The strain sensor module according to claim 1 , wherein the plurality of sensor electrodes are formed in a row on the base material claim 1 , and a slit is formed between adjacent sensor electrodes on the base material.3. The strain sensor module according to claim 1 , further comprising a first sensor part which is the sensor part formed on a front surface of the base material claim 1 , and a second sensor part which is the sensor part formed on a back surface of the base material claim 1 , wherein a half-bridge circuit is formed claim 1 , the half-bridge circuit being based on a 2-active gauge method in which both the first sensor part and the second sensor part are used as gauges for measurement.4. The strain sensor module according to claim 2 , comprising a first sensor part which is the sensor part formed on a front surface of the base material claim 2 , and a second sensor part which is the sensor part formed on a back surface of the base material claim 2 , wherein a half-bridge circuit is formed claim 2 , the half-bridge circuit being based on a 2-active gauge method in which both the first sensor part and the second sensor part are used as gauges for measurement.5. The strain sensor module according to claim 3 , comprising a third sensor part which is the sensor part formed on a front surface of the base material claim 3 , and a ...

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Номер записи: 86
21-10-2021 дата публикации

FORCE SENSOR FOR SURGICAL DEVICES

Номер: US20210322123A1
Автор: Mozdzierz Patrick, Sgroi Anthony, VALENTINE David
Принадлежит:

The present disclosure relates to force sensors and force sensor substrates for use with surgical devices. 12-. (canceled)3. A force sensor comprising:a substrate including a proximal surface having a proximal load contact area and a distal surface having at least one distal load contact area and a sensing area, the sensing area including a groove defined therein; andat least one sensing element disposed on the sensing area of the distal surface of the substrate.4. The force sensor according to claim 3 , wherein the groove includes a series of connected parallel cuts.5. The force sensor according to claim 3 , wherein the at least one sensing element is a strain gauge.6. The force sensor according to claim 3 , wherein the distal surface of the substrate is planar.7. The force sensor according to claim 3 , wherein the substrate includes a central aperture defined therethrough claim 3 , the central aperture extending through the proximal and distal surfaces.8. The force sensor according to claim 7 , wherein the proximal load contact area is disposed adjacent to the central aperture.9. The force sensor according to claim 7 , wherein the groove extends between the central aperture and an outer edge of the distal surface of the substrate.10. The force sensor according to claim 3 , wherein the at least one distal load contact area and the sensing area are separated by at least one relief cut defined in the distal surface.11. The force sensor according to claim 10 , wherein the at least one relief cut extends around the at least one distal load contact area.12. The force sensor according to claim 3 , wherein the at least one distal load contact area includes four distal load contact areas disposed at corners of the distal surface.13. The force sensor according to claim 12 , wherein each of the four distal load contact areas is separated from the sensing area by a relief cut claim 12 , each of the relief cuts corresponding to and surrounding one of the four distal load ...

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Номер записи: 87
13-08-2020 дата публикации

APPAREL WITH PRESSURE SENSOR CONTROL

Номер: US20200253293A1
Автор: Alipour Hamid, Pheil Holli, VanWeerd Mark
Принадлежит:

An article of apparel and method include a structure configured to enclose a human body part, a pressure sensor array including multiple pressure sensors separately positioned at locations within the structure, wherein each pressure sensor is configured to output a signal indicative of an amount of pressure being exerted on the pressure sensor by an external mechanical force, an electronic display, and a controller. The controller is configured to receive signals from the pressure sensors and, based on a sequence and a timing of the signals as received, determine a command related to a function of a device. The electronic display is configured to display information related to the function. 1. An article of apparel , comprising:a structure configured to enclose a human body part,a pressure sensor array including multiple pressure sensors separately positioned at locations within the structure, wherein each pressure sensor is configured to output a signal indicative of an amount of pressure being exerted on the pressure sensor by an external mechanical force: receive signals from the pressure sensors; and', 'based on a sequence and a timing of the signals as received, determine a command related to a function of a device; and, 'a controller, coupled to the pressure sensor array, configured to{'b': '10', 'an electronic display, coupled to the controller, configured to display information related the function.'}2. The article of apparel of claim 1 , wherein at least some of the pressure sensors of the pressure sensor array are components of an integrated pressure sensor assembly claim 1 , wherein the integrated pressure sensor assembly comprises:an electrically conductive having a first resistance at a location when not acted on by a mechanical force at the location and the external second resistance less than the first resistance at the location when acted on by the external mechanical force at the location;a first conductor coupled a first major surface of the ...

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Номер записи: 88
13-08-2020 дата публикации

STRAIN SENSOR AND METHOD OF FABRICATING THE SAME

Номер: US20200256748A1
Автор: Kim Dong Gyu, LEE Woo Seok, OH Soong Ju
Принадлежит: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

The present disclosure discloses a strain sensor and a method of fabricating the same. The strain sensor according to an embodiment of the present disclosure includes an X-axis sensor formed on a flexible insulating substrate and responsible for sensing X-axis strain; a Y-axis sensor formed on the flexible insulating substrate to be orthogonal to the X-axis sensor and responsible for sensing Y-axis strain; a metal electrode formed on a region of the flexible insulating substrate where the X-axis sensor and the Y-axis sensor are not formed; and an encapsulation layer formed on the X-axis sensor, the Y-axis sensor, and the metal electrode. In this case, the X-axis sensor and the Y-axis sensor have a metal-insulator heterostructure. 1. A strain sensor , comprising:an X-axis sensor formed on a flexible insulating substrate and responsible for sensing X-axis strain;a Y-axis sensor formed on the flexible insulating substrate to be orthogonal to the X-axis sensor and responsible for sensing Y-axis strain;a metal electrode formed on a region of the flexible insulating substrate where the X-axis sensor and the Y-axis sensor are not formed; andan encapsulation layer formed on the X-axis sensor, the Y-axis sensor, and the metal electrode,wherein the X-axis sensor and the Y-axis sensor have a metal-insulator heterostructure.2. The strain sensor according to claim 1 , wherein the metal-insulator heterostructure comprises first nanocrystals used as a metallic material and second nanocrystals used as an insulating material.3. The strain sensor according to claim 2 , wherein a volume ratio of the first nanocrystals to the second nanocrystals is 38 to 18:62 to 82.4. The strain sensor according to claim 2 , wherein the first nanocrystals or the second nanocrystals have a diameter of 5 nm to 15 nm.5. The strain sensor according to claim 2 , wherein the first nanocrystals or the second nanocrystals comprise an organic ligand containing 1 to 3 carbon chains or an inorganic ligand.6. The ...

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Номер записи: 89
20-08-2020 дата публикации

PRESSURE SENSOR FOR SENSING PRESSURE IN VERTICAL DIRECTION, STRAIN SENSOR FOR SENSING TENSION IN HORIZONTAL DIRECTION, AND METHOD FOR MANUFACTURING SENSORS

Номер: US20200264058A1
Автор: CHOI Min Ki, Kim Joo Yong
Принадлежит:

Disclosed are a pressure sensor for sensing pressure in a vertical direction, a strain sensor for sensing tension in a horizontal direction, and a method for manufacturing the sensors. The disclosed pressure sensor includes a plurality of pressure sensor units stacked in multiple layers, and at least one of a pressure elastic modulus and an amount of conductive particles per unit area of each of the plurality of pressure sensor units is different from each other. 1. A pressure sensor for sensing pressure in a vertical direction comprising:a plurality of pressure sensor units stacked in multiple layers,wherein at least one of a pressure elastic modulus and an amount of conductive particles per unit area of each of the plurality of pressure sensor units is different from each other.2. The pressure sensor of claim 1 , wherein the stacking order of the plurality of pressure sensor units is determined based on the magnitude of the pressure elastic modulus or the amount of conductive particles per unit area.3. The pressure sensor of claim 1 , wherein the plurality of pressure sensor units are stacked in ascending order of the pressure elastic modulus of the plurality of pressure sensor units or in descending order of the amount of conductive particles per unit area.4. The pressure sensor of claim 1 , wherein the plurality of pressure sensor units have textile materials and the plurality of stacked pressure sensor units are manufactured through a continuous process.5. The pressure sensor of claim 4 , wherein the plurality of stacked pressure sensor units are generated by impregnating or printing conductive particles in the same insulating fibers woven at different densities in each layer.6. The pressure sensor of claim 5 , wherein the pressure sensor unit having a smaller density of the insulating fiber increases the number of impregnation times and the number of printing times to increase the amount of conductive particles.7. The pressure sensor of claim 4 , wherein the ...

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Номер записи: 90
27-09-2018 дата публикации

Pressure sensor chip, pressure transmitter, and method for manufacturing pressure sensor chip

Номер: US20180275001A1
Автор: Tomohisa Tokuda
Принадлежит: Azbil Corp

A pressure sensor chip includes a first layer including a pressure introduction channel opening on a first main surface and a second main surface; a second layer including a diaphragm covering one end of the channel, a first strain gauge, and a second strain gauge, the second layer being on the second main surface; and a third layer including a third main surface and a concaved portion disposed at the third main surface, the third main surface being on the second layer. The concaved portion faces the channel with the diaphragm interposed therebetween, and is on an inner side of the channel when viewed from a direction perpendicular to the first main surface. The first strain gauge is on an outer side of the concaved portion when viewed from the direction. The second strain gauge is on an inner side of the first strain gauge when viewed from the direction.

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Номер записи: 91
06-10-2016 дата публикации

STRAIN SENSOR USING NANOCOMPOSITE AND METHOD FOR MANUFACTURING THEREOF

Номер: US20160290780A1
Автор: HWANG Byeong Ung, LEE Nae Eung, TRAN Quang Trung
Принадлежит: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY

A strain sensor and a method of manufacturing the same are provided. The strain sensor includes a substrate, a nanocomposite layer disposed on the substrate, and a protective layer disposed on the nanocomposite layer. The nanocomposite layer includes metallic nanowires, a first polymeric material, and a second polymeric material. The protective layer includes a third polymeric material. The metallic nanowires are randomly arranged in the nanocomposite layer. 1. A strain sensor , comprising:a substrate;a nanocomposite layer disposed on the substrate, and comprising metallic nanowires, a first polymeric material, and a second polymeric material; anda protective layer disposed on the nanocomposite layer, and comprising a third polymeric material,wherein the metallic nanowires are randomly arranged in the nanocomposite layer.2. The strain sensor of claim 1 , wherein the protective layer further comprises one or more of the first polymeric material and the second polymeric material.3. The strain sensor of claim 1 , wherein the first polymeric material is one or more selected from the group consisting of poly(3 claim 1 ,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) claim 1 , polyacetylene claim 1 , polyparaphenylene claim 1 , polypyrrole claim 1 , and polyaniline.4. The strain sensor of claim 1 , wherein the second polymeric material is one or more selected from the group consisting of polydimethylsiloxane (PDMS) claim 1 , ecoflex and polyurethane (PU).5. The strain sensor of claim 1 , wherein the substrate is one or more selected from the group consisting of PDMS claim 1 , ecoflex claim 1 , and PU.6. The strain sensor of claim 1 , wherein the third polymeric material is one or more selected from the group consisting of PDMS claim 1 , ecoflex claim 1 , and PU.7. The strain sensor of claim 1 , wherein the metallic nanowires comprise gold claim 1 , silver claim 1 , nickel claim 1 , copper claim 1 , platinum claim 1 , aluminum claim 1 , or a combination ...

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Номер записи: 92
06-10-2016 дата публикации

PRINTED STRETCHABLE STRAIN SENSOR

Номер: US20160290880A1
Автор: Kolesky David B., Lewis Jennifer A., Menguc Yigit, Muth Joseph T., Truby Ryan L., Vogt Daniel M., Wood Robert J.
Принадлежит: President and Fellows of Harvard College

A printed stretchable strain sensor comprises a seamless elastomeric body and a strain-sensitive conductive structure embedded in the seamless elastomeric body. The strain-sensitive conductive structure comprises one or more conductive filaments arranged in a continuous pattern. A method of printing a stretchable strain sensor comprises depositing one or more conductive filaments in a predetermined continuous pattern into or onto a support matrix. After the depositing, the support matrix is cured to embed a strain-sensitive conductive structure in a seamless elastomeric body. 1. A printed stretchable strain sensor comprising:a seamless elastomeric body; anda strain-sensitive conductive structure embedded in the seamless elastomeric body, the strain-sensitive conductive structure comprising one or more conductive filaments arranged in a continuous pattern.2. The printed stretchable strain sensor of claim 1 , wherein the strain-sensitive conductive structure comprises a substantially circular transverse cross-section.34-. (canceled)5. The printed stretchable strain sensor of claim 1 , wherein the conductive filament is viscoelastic.6. The printed stretchable strain sensor of claim 5 , wherein the conductive filament comprises a shear-thinning material selected from the group consisting of: silicone oil claim 5 , mineral oil claim 5 , an organic solvent claim 5 , an ionic liquid claim 5 , a hydrogel claim 5 , an organogel claim 5 , and a liquid metal.711-. (canceled)12. The printed stretchable strain sensor of claim 1 , comprising a sensitivity to strains as low as 1%.13. The printed stretchable strain sensor of comprising a mechanical integrity sufficient to withstand cyclic loading from 0% to 100% strain at a strain rate of 10 mm/s or higher for at least 7000 cycles without failure.1415-. (canceled)16. A method of printing a stretchable strain sensor claim 1 , the method comprising:depositing one or more conductive filaments in a predetermined continuous pattern into ...

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Номер записи: 93
27-08-2020 дата публикации

STRAIN GAUGE

Номер: US20200271533A1
Автор: MISAIZU Eiji, ONO Aya, YUGUCHI Akiyo
Принадлежит:

A strain gauge includes a flexible substrate; a resistor formed of material including at least one from among chromium and nickel, on or above the substrate; and electrodes electrically coupled to the resistor. Each electrode includes a terminal section extending from a corresponding end portion from among end portions of the resistor; a first metallic layer formed of copper, a copper alloy, nickel, or a nickel alloy, on or above the terminal section; and a second metallic layer formed of material having better solder wettability than the first metallic layer, on or above the first metallic layer. 112-. (canceled)13. A strain gauge comprising:a flexible resin substrate;a functional layer formed of a metal, an alloy, or a metal compound, directly on one surface of the substrate;{'sub': '2', 'a resistor formed of a Him that includes Cr, CrN, and CrN and into which an element included in the functional layer is diffused, on one surface of the functional layer; and electrodes electrically coupled to the resistor,'}wherein a gauge factor of the strain gauge is 10 or more, and a terminal section extending from a corresponding end portion from among end portions of the resistor;', 'a first metallic layer formed of copper, a copper alloy, nickel, or a nickel alloy, on or above the terminal section; and', 'a second metallic layer formed of material having better solder wettability than the first metallic layer, on or above the first metallic layer., 'wherein each electronic includes14. A strain gauge comprising:a flexible resin substrate;a functional layer formed of a metal, an alloy, or a metal compound, directly on one surface of the substrate;{'sub': '2', 'a resistor formed of a film that includes Cr, CrN, and CrN and into which an element included in the functional layer is diffused, on one surface of the functional layer; and electrodes electrically coupled to the resistor,'}wherein a temperature coefficient of resistance of the strain gauge is in a range of from −1000 ...

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Номер записи: 94
23-12-2021 дата публикации

DIGITAL SENSOR FOR PRE-WARNING OF MULTISTAGE BREAKAGE-TRIGGERED DEFORMATION THRESHOLD

Номер: US20210396507A1
Автор: Wang Wei, Zhang Yan
Принадлежит: TONGJI UNIVERSITY

A digital sensor for pre-warning of multistage breakage-triggered deformation threshold includes first tension rods, second tension rods, a radio-frequency identification (RFID) chip, and a brittle fracture module, where the first tension rods as well as the second tension rods are respectively fixedly connected to two points to be measured on a tension member, and the first tension rods and the second tension rods can move reversely with deformation of the tension members; the RFID chip is fixedly arranged on the first tension rods; the brittle fracture module includes a bottom plate and a plurality of resistors, where two ends of the bottom plate are fixed to the first tension rods and the second tension rods, and the plurality of resistors forming a lumped parallel circuit are parallelly arranged on the bottom plate; the RFID chip is connected to two ends of the lumped parallel circuit. 1. A digital sensor for pre-warning of multistage breakage-triggered deformation threshold , comprising:first tension rods and second tension rods, wherein the first tension rods as well as the second tension rods are respectively fixedly connected to two points to be measured on a tension member, and the first tension rods and the second tension rods can move reversely with deformation of the tension members;a radio-frequency identification (RFID) chip fixedly arranged on the first tension rods; anda brittle fracture module comprising a bottom plate and a plurality of resistors, wherein two ends of the bottom plate are fixed to the first tension rods and the second tension rods, and the plurality of resistors forming a lumped parallel circuit are parallelly arranged on the bottom plate; the RFID chip is connected to two ends of the lumped parallel circuit; strength of the middle cross section of the bottom plate is reduced, and in this way, the bottom plate will be fractured by being tensioned when the first tension rods and the second tension rods move away from each other with ...

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Номер записи: 95
23-12-2021 дата публикации

METHOD OF MANUFACTURE OF A STRAIN GAGE OR FLEXIBLE POLYIMIDE-BASED RESISTOR

Номер: US20210396608A1
Автор: Hercowitz Amos, ISRAELI Ofir, Manor Shirley, Sudry Ofir, Yaron Gilad
Принадлежит: VISHAY ADVANCED TECHNOLOGIES, LTD.

A method of manufacture of a strain gage or flexible polyimide-based resistor, the method including the steps of providing a flexible polyimide substrate, joining a conductive foil to the flexible polyimide substrate, applying a layer of photoresist to the conductive foil and thereafter, patterning the conductive foil by etching using the photoresist, wherein the method is characterized in that it includes at least one of the following steps: surface conditioning of the flexible polyimide substrate using mechanical abrasion, scrubbing of the conductive foil prior to the patterning, removal of photoresist by scrubbing following the patterning, pressurized cleaning, using deionized water, following the patterning, automated algorithmic resistance calibration and shunt trimming and forming an emulsion layer of epoxy over the conductive foil following the patterning. 1. A method of manufacture of a strain gage or flexible polyimide-based resistor , the method comprising the steps of:providing a flexible polyimide substrate joined to a conductive foil;applying a layer of photoresist to the conductive foil; andthereafter, patterning the conductive foil by etching using said photoresist, surface conditioning of the flexible polyimide substrate using mechanical abrasion;', 'scrubbing of said conductive foil prior to said patterning;', 'removal of photoresist by scrubbing following said patterning;', 'pressurized cleaning, using deionized water, following said patterning;', 'automated algorithmic resistance calibration and shunt trimming; and', 'forming an emulsion layer of epoxy over said conductive foil following said patterning., 'said method being characterized in that it includes at least one of the following steps2. A method of manufacture according to and wherein said providing a flexible polyimide substrate joined to a conductive foil comprises attaching said conductive foil to said flexible polyimide substrate by using a resin.3. A method of manufacture according to ...

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Номер записи: 96
03-09-2020 дата публикации

SPLIT BRIDGE CIRCUIT FORCE SENSOR

Номер: US20200278265A1
Автор: Suresh Ashwinram
Принадлежит:

A force sensor comprising a beam having a longitudinal axis and a proximal end portion and a distal end portion; a first Wheatstone bridge disposed on a first face of the beam, including multiple tension gauge resistors and multiple compression gauge resistors; a second Wheatstone bridge disposed on the first face of the beam, including multiple tension gauge resistors and multiple compression gauge resistors; wherein at least one tension gauge resistor and at least one compression gauge resistor from each of the first and second Wheatstone bridges is disposed at a proximal end portion of the beam; wherein at least one tension gauge resistor and at least one compression gauge resistor from each of the first and second Wheatstone bridges is disposed at a distal end portion of the beam. 133-. (canceled)34. A force sensor comprising:a beam comprising a proximal end portion, a distal end portion, a first face between the proximal end portion of the beam and the distal end portion of the beam, and a longitudinal axis extending between the proximal end portion of the beam and the distal end portion of the beam;a first Wheatstone bridge on the first face of the beam, the first Wheatstone bridge comprising first and second tension gauge resistors and first and second compression gauge resistors; anda second Wheatstone bridge on the first face of the beam, the second Wheatstone bridge comprising third and fourth tension gauge resistors and third and fourth compression gauge resistors;wherein the first and third tension gauge resistors and the first and third compression gauge resistors are at the proximal end portion of the beam; andwherein the second and fourth tension gauge resistors and the second and fourth compression gauge resistors are at the distal end portion of the beam.35. The force sensor of claim 34 , wherein:the first and third tension gauge resistors are co-located on the beam;the first and third compression gauge resistors are co-located on the beam;the ...

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Номер записи: 97
10-09-2020 дата публикации

Force/Torque Sensor Having Serpentine or Coiled Deformable Beams and Overload Beams

Номер: US20200284667A1
Автор: Glusiec Andrew
Принадлежит:

A force/torque sensor includes a plurality of serpentine or spiral deformable beams connecting a TAP and MAP. These classes of shapes increase the overall length of the deformable beams, which reduces their stiffness. In addition to the deformable beams is a plurality of straight overload beams, each connected at a first end to one of the TAP and MAP, and separated from the other of the TAP and MAP at the second end by an overload gap of a predetermined width. Over a first range of forces and torques, strain gages on the deformable beams transduce compressive and tensile strains into electrical signals, which are processed to resolve the forces and torques. Over a second range of forces and torques greater than the first range, the overload beams close the overload gap, establishing rigid contact to both the TAP and MAP. The stiffness of the sensor in the second range of forces and torques is greater than over the first range. 1. A force/torque sensor , comprising:a Tool Adapter Plate (TAP) operative to be connected to a first object:a Mounting Adapter Plate (MAP) operative to be connected to a second object; a serpentine deformable beam, wherein at least one directed path taken down the centerline of the serpentine deformable beam from a point of attachment to the TAP to a point of attachment to the MAP deviates from an instantaneous straight line at least once to the left and at least once to the right, and', 'a spiral deformable beam, wherein at least one directed path taken down the centerline of the spiral deformable beam from a point of attachment to the TAP to a point of attachment to the MAP deviates from an instantaneous straight line to one of the left or the right, and wherein the cumulative sum of such deviation is 90-degrees or greater;, 'one or more deformable beams connecting the TAP to the MAP, each deformable beam comprising at least one of'}strain gages affixed to one or more surfaces of at least some of the serpentine or spiral deformable beams, ...

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Номер записи: 98
27-10-2016 дата публикации

Sensors Comprising Palladium Complex Ink

Номер: US20160314881A1
Автор: Kor Sivkheng, Ng Tse Nga, Wu Yiliang
Принадлежит:

A sensor including a sensing element comprising conductive features formed on a substrate; wherein the conductive features have been formed from a palladium complex ink composition that has been deposited onto the substrate to form the deposited features and wherein the deposited features have been heated to form the conductive features on the substrate. A method including disposing a palladium complex ink composition onto a substrate to form deposited features; and heating the deposited features to form conductive features on the substrate. A strain gauge sensor including a sensing element comprising conductive features formed on a substrate; wherein the conductive features conform to a two dimensional substrate surface; or wherein the conductive features conform to a three dimensional substrate surface. 1. A method for forming a strain gauge sensor comprising:disposing a palladium complex ink composition onto a substrate to form deposited features; andheating the deposited features to form conductive features on the substrate, wherein the deposited features form a strain gauge sensor.2. The method of claim 1 , wherein disposing the palladium complex ink composition comprises disposing a thin film of the ink claim 1 , wherein the thin film has a line thickness after heating of from about 50 nanometers to less than about 500 nanometers.3. The method of claim 1 , wherein the palladium complex ink composition comprises a palladium salt claim 1 , an organic amine that forms a palladium complex from the palladium salt claim 1 , and at least one solvent claim 1 , wherein the at least one solvent has a boiling point at about the decomposition temperature of the palladium complex.4. The method of claim 1 , wherein disposing the ink composition comprises a printing method selected from the group consisting of ink jet printing claim 1 , gravure claim 1 , and flexography.5. The method of claim 1 , wherein heating the deposited features comprises heating to a temperature of ...

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Номер записи: 99
24-09-2020 дата публикации

DETECTION DEVICE

Номер: US20200300719A1
Автор: UCHIDA Ryosuke
Принадлежит:

A detection device includes a first electrode, a second electrode, a variable resistor portion formed between first electrode and the second electrode, and a contact member that is elastically deformable and has a contact area with the variable resistor portion. The contact area increases according to a load that is applied to the contact member in a direction toward the variable resistor portion. The variable resistor portion includes an output varying region that varies an output voltage from the second electrode according to the contact area. The output varying region is formed so that a contact distance between the variable resistor portion and an outer peripheral portion of the contact member becomes longer as the contact area becomes larger. 1. A detection device comprising:a first electrode;a second electrode;a variable resistor portion formed between first electrode and the second electrode; anda contact member that is elastically deformable and has a contact area with the variable resistor portion,wherein the contact area increases according to a load that is applied to the contact member in a direction toward the variable resistor portion,wherein the variable resistor portion includes an output varying region that varies an output voltage from the second electrode according to the contact area, andwherein the output varying region is formed so that a contact distance between the variable resistor portion and an outer peripheral portion of the contact member becomes longer as the contact area becomes larger.2. The detection device as claimed in claim 1 , wherein the output varying region includes a first portion having a width that becomes narrower in a direction separated more from the first electrode.3. The detection device as claimed in claim 2 , wherein the output varying region includes a second portion having a width that becomes narrower in a direction separated more from the second electrode.4. The detection device as claimed in claim 1 , further ...

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Номер записи: 100