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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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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 3410. Отображено 100.
05-01-2012 дата публикации

Method and device for harvesting energy from ocean waves

Номер: US20120001427A1
Автор: Balakrishnan Nair, Sivaraman Guruswamy
Принадлежит: Individual

A method and device for generating electricity from ocean waves. The device includes at least one magnetostrictive element and one or more electrically conductive coils or circuits. When the magnetostrictive element is deployed in a body of water, the motion of the body of water, including wave motion, causes changes in the strain of the magnetostrictive element. The electrically conductive coil or circuit is within the vicinity of the magnetostrictive element. A corresponding change in magnetic field around the magnetostrictive element generates an electric voltage and/or electric current in the electrically conductive coil or circuit.

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Номер записи: 1
12-01-2012 дата публикации

Dynamically Adjusting Piezoelectric Current Sensors

Номер: US20120007468A1
Автор: Igor Paprotny, Qiliang Xu, Richard M. White
Принадлежит: UNIVERSITY OF CALIFORNIA

Provided are various embodiments of an adjustment circuit, having a base layer and a piezoelectric layer juxtaposed relative to the base layer and including a first electrode such that when the piezoelectric layer is stressed a polarization charge appears between the base layer and one side of the piezoelectric layer and an opposite polarization charge appears on an opposite side of the piezoelectric layer.

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Номер записи: 2
29-03-2012 дата публикации

Wheel with piezoelectric ring and vehicle having same

Номер: US20120074814A1
Автор: Kuo-Cheng Chang
Принадлежит: Foxsemicon Integrated Technology Inc

A wheel includes a rim and a tire. The rim includes a ring body defining a central axis, two flanges, and two piezoelectric rings. The flanges extend from the circumference of the ring body around the central axis. A first annular groove is defined in the circumference of each flange around the central axis. The piezoelectric rings are mounted in the respective first annular grooves and configured for producing electric power under pressure. The tire encloses the rim.

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Номер записи: 3
19-04-2012 дата публикации

Piezoelectric generator, sensor node, and method of manufacturing piezoelectric generator

Номер: US20120091859A1
Автор: Atsuya Hirabayashi, Yasuhiro Ono
Принадлежит: Seiko Epson Corp

A piezoelectric generator includes: a base body; and at least one piezoelectric transducer disposed on the base body, and including a first electrode, a piezoelectric body, and a second electrode, wherein the piezoelectric transducer includes a support section fixed to the base body, and a vibrating section disposed apart from the base body, having one end connected to the support section and the other end set as a free end, and vibrating due to a vibration applied externally, and a distance between the other end of the vibrating section and the base body is larger than a distance between the one end of the vibrating section and the base body.

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Номер записи: 4
17-05-2012 дата публикации

Method and device for harvesting energy from ocean waves

Номер: US20120119494A1
Автор: Balakrishnan Nair
Принадлежит: Oscilla Power Inc

A method and device for generating electric power from ocean waves is described. The device includes at least one magnetostrictive element and at least one buoy. When the buoy is deployed in a body of liquid subject to wave motion, the buoy remains partially submerged during normal wave motion. The buoy is coupled to the magnetostrictive element to continuously exert a varying force on the magnetostrictive element during the normal wave motion.

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Номер записи: 5
17-05-2012 дата публикации

Power generating device and electronic component

Номер: US20120119618A1
Автор: Atsushi Oshima, Hiroyuki Yoshino, Kunio Tabata, Noritaka Ide
Принадлежит: Seiko Epson Corp

A power generating device includes: a piezoelectric member that is formed from a piezoelectric material; one pair of electrodes that are installed to the piezoelectric member; a transformation unit that repeatedly transforms the piezoelectric member; an inductor that is installed between the one pair of electrodes and configures a resonance circuit together with a capacitive component of the piezoelectric member; a switch that is connected to the inductor in series; and a switch control unit that connects the switch when a transformation direction of the piezoelectric member is switched, and cuts off the switch when a time corresponding to a half period of a resonance period of the resonance circuit elapses.

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Номер записи: 6
21-06-2012 дата публикации

Piezoelectric energy harvesting apparatus

Номер: US20120153773A1
Автор: Sang Kyun Lee
Принадлежит: Electronics and Telecommunications Research Institute ETRI

Disclosed is a piezoelectric energy harvesting apparatus. The piezoelectric energy harvesting apparatus includes: a piezoelectric energy harvesting array that includes a plurality of piezoelectric energy harvesting devices converting an external vibration into electric energy; a plurality of switches that is connected in series to the piezoelectric energy harvesting devices, respectively, and fits the resonance frequency of the piezoelectric energy harvesting array to the frequency of the external vibration by adjusting the resonance frequencies of the piezoelectric energy harvesting devices through the operation of the switches; and at least one or more rectifiers that convert alternating voltage outputted from the piezoelectric energy harvesting array into direct voltage.

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Номер записи: 7
23-08-2012 дата публикации

Apparatus for generating electrical energy and method for manufacturing the same

Номер: US20120210565A1
Автор: Dukhyun CHOI, JaeYoung Choi
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An apparatus for generating electrical energy may include; a first electrode, a second electrode spaced apart from the first electrode, a nanowire which includes a piezoelectric material and is disposed on the first electrode, an active layer disposed on the first electrode, a conductive layer disposed on the active layer, and an insulating film disposed between the conductive layer and the nanowire, wherein the nanowire and the active layer are electrically connected to each other. A method for manufacturing an apparatus for generating electrical energy may include; disposing a nanowire including a piezoelectric material on a first electrode, disposing an active layer, which is electrically connected to the nanowire, on the first electrode, disposing an insulating film on the nanowire, disposing a conductive layer on the active layer, and disposing a second electrode in proximity to the nanowire and substantially opposite to the first electrode.

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Номер записи: 8
06-09-2012 дата публикации

Electrical energy generator

Номер: US20120223617A1
Автор: Seung-Nam Cha, Sung-min Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

According to an example embodiment, an electrical energy generator includes at least one piezoelectric structure, a semiconductor layer and a contact layer. The at least one piezoelectric structure includes a material having piezoelectric characteristics. One surface of each piezoelectric structure forms a p-n junction with the semiconductor layer. The other end of each piezoelectric structure contacts the contact layer that is formed of a material having metal-insulator transition (MIT) characteristics. The piezoelectric structure may be an elongated member, such as a nanowire.

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Номер записи: 9
11-10-2012 дата публикации

Method for Remote Control of an Electric Equipment Unit and Control Device for Implementation of Such a Method

Номер: US20120256736A1
Автор: Didier Vigouroux
Принадлежит: Schneider Electric Industries SAS

A method for remote control of an electric equipment unit, and device therefor, that includes a first actuation sequence of a generator and a second actuation sequence of that generator, wherein, in the first sequence, actuation stores energy of the first actuation and information of a control order to be sent to the equipment unit, and in the second sequence, actuation stores energy of this second actuation and enables the stored control order to be sent to the equipment unit and enables information of effective transmission of the control order to be sent to indicating means. The device mainly includes a control interface to be placed in the equipment unit, a remote control having two actuating buttons, a dongle which can be detached and temporarily inserted in the control interface, and means for forcing the operator to reposition the dongle inside the housing of the remote control after use.

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Номер записи: 10
27-12-2012 дата публикации

Energy harvesting/tire pressure, temperature and tire data transmitter

Номер: US20120326565A1
Автор: Heikki Kuisma, Katsutoshi Narita
Принадлежит: Toyota Motor Corp

The invention embodies a harvester ( 12 ) to convert energy from mechanical domain to electrical domain. The harvester comprises at least one inertial body ( 6 ), at least one beam ( 7, 9 ), a support ( 8 ) to said at least one beam ( 7, 9 ) and transducer means ( 10, 16 ), wherein said at least one beam ( 7, 9 ) configures the inertial body ( 6 ) into a pendulum structure being suspended from said support ( 8 ) so that the beam ( 7, 9 ) is allowed to bend according to the kinetic state changes of the inertial body ( 6 ), and is configured to interact with at least one transducer means ( 10 ) that is/are configured to produce change in the electrical state of said transducer means ( 10, 16 ) responsively to the kinetic state of the beam ( 7, 9 ). The invention also shows harvester module, matrix and a harvester system comprising at least one embodied harvester. The invention also shows a tire and a foot wear that comprises at least one harvester embodied.

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Номер записи: 11
03-01-2013 дата публикации

Power-generating system

Номер: US20130002091A1
Автор: Hiroshi Tanaka, Koichi Niihara, Masatoshi Takeda, Noboru Yamada, Tadachika Nakayama, Takeshi Serizawa, Yoonho Kim
Принадлежит: Daihatsu Motor Co Ltd

A power-generating system includes a heat source having a temperature that goes up and down over time; a first device that undergoes electric polarization due to a temperature change of the heat source; and a second device that takes out an electric power from the first device.

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Номер записи: 12
14-02-2013 дата публикации

Nano generator and method of manufacturing the same

Номер: US20130038299A1
Автор: Ju-Seok Seo, Jung-Inn Sohn, Sang-Woo Kim, Seung-Nam Cha, Sung-min Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A nanogenerator with at least one nanostructure and method of manufacturing the same are provided. The method of manufacturing the nanogenerator includes forming at least one nanostructure including an organic piezoelectric material on a substrate.

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Номер записи: 13
07-03-2013 дата публикации

Energy harvester

Номер: US20130057111A1
Автор: A.S.M. Mukter-Uz-Zaman, Agus Santoso Tamsir, Masuri Othman, Mohammad Shaharia Bhuyan, Suraya Sulaiman
Принадлежит: Mimos Bhd

An energy harvester ( 100 ) comprising a base ( 110 ); one or more first resilient means ( 120 ) mounted on the base ( 110 ); a hollow chamber ( 130 ) having a mounting point ( 131 ) pivotally attached to the first resilient means ( 120 ) in static equilibrium in such a way that centre of mass of the hollow chamber ( 130 ) is aligned with the first resilient means ( 120 ) at the vertical axis; a hollow member ( 140 ) enclosed within the hollow chamber ( 130 ) being attached to one or more second resilient means ( 150 ) extending from the mounting point ( 131 ) in static equilibrium that centre of mass of the hollow member ( 140 ) is aligned with the second resilient means ( 150 ) at the vertical axis; a plurality of piezoelectric material-built cantilevers ( 160 ) mounted on the hollow member ( 140 ) and spaced apart from one another in a predetermined gap at the vertical planar that the piezoelectric material-built cantilevers ( 160 ) are varied in length and/or centre of mass; a primary storage ( 170 ) associated with the hollow chamber ( 130 ), the hollow member ( 140 ) and the plurality of piezoelectric material-built cantilevers ( 160 ) through an integrated circuit for storing harvested energy; wherein the energy is harvested through vibration of the plurality of piezoelectric material-built cantilevers ( 160 ) at its approximately resonant frequency, reciprocation of the hollow chamber ( 130 ) and the hollow member ( 140 ) upon applying kinetic force.

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Номер записи: 14
21-03-2013 дата публикации

ELECTRIC CONTACTOR HAVING SENSITIVE CONTROL

Номер: US20130069485A1
Автор: Dutheil Daniel
Принадлежит:

Electrical contactor with touch control using a piezoelectric pellet incorporated in one face () of a card () which is made of an insulating material and the other face () of which comprises an electronic circuit, characterised in that said contactor comprises a metal casing (), of which the bottom (), which is thinned-down, constitutes a protective partition against which the first face () is applied by the interposition of a tubular member (), of which one end, which is elastically deformable, is applied against the periphery of the said card, the said casing and the said card comprising means which, together, bring about the holding of the said member () in position. 122215233bab. Electrical contactor with touch control using a piezoelectric pellet incorporated in one face () of a card () which is made of an insulating material and the other face () of which comprises an electronic circuit , characterised in that it comprises a metal casing () , of which the bottom () , which is sufficiently thin to be deformed under the effect of a light manual pressure , constitutes a protective partition against which the first face () is applied by the interposition of a tubular member () , of which one end , which is elastically deformable , is applied against the periphery of the said card , the said casing and the said card comprising means which , together , bring about the holding of the said member () , or ring , in position.236. Contactor according to claim 1 , characterised in that the ring () is made of an elastically deformable material claim 1 , and in that the end () which is in contact with the card is shaped so as to allow slight flattening under the effect of an axial thrust claim 1 , while maintaining a pre-stress.3378877aa. Contactor according to claim 1 , characterised in that the ring () has at least one lug () which extends beyond the diameter of the said ring claim 1 , substantially obliquely in relation to the axis of the ring in such a way that the ...

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Номер записи: 15
21-03-2013 дата публикации

ELECTRICAL ENERGY GENERATOR USING PIEZOELECTRIC CRYSTALS

Номер: US20130069487A1
Автор: HOUSER MICHAEL
Принадлежит:

An electrical energy generator and a method of generating electrical energy are provided. The electrical energy generator has a rotating drive shaft, a first member connected to the rotating drive shaft and one or more base plates that encircle the first member and rotate relative to the first member. Each base plate has one or more electrical energy generator components and each electrical energy generator component has one or more piezoelectric elements that are excited when the base plates rotate relative to the first member and that generate electrical energy. The electrical energy output of the electrical energy generator is a total of the electrical energy output of the piezoelectric elements on the one or more base plates. 1. An electrical energy generator , comprising:a rotating drive shaft;a first member connected to the rotating drive shaft; andone or more base plates that encircle the first member and rotate relative to the first member, each base plate further comprising one or more electrical energy generator components wherein each electrical energy generator component has one or more piezoelectric elements that are excited when the base plates rotate relative to the first member and that generate electrical energy; andwherein an electrical energy output of the electrical energy generator comprises a total of the electrical energy output of the piezoelectric elements on the one or more base plates.2. The generator of claim 1 , wherein each electrical energy generator component further comprises a roller element connected to the piezoelectric element and one or more retainer members that retain the piezoelectric element and wherein the roller element periodically excites the piezoelectric element.3. The generator of claim 2 , wherein the first member is a cam member on which each roller element rests wherein the cam moves the roller element that excites the piezoelectric element.4. The generator of further comprising a plurality of piezoelectric ...

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Номер записи: 16
21-03-2013 дата публикации

PIEZOELECTRIC PRESSURE SENSITIVE TRANSDUCER APPARATUS AND METHOD

Номер: US20130069488A1
Автор: CUMMISKEY Ryan J., GOODEMOTE John H., RUGGLES David A., STIMSON Dennis C.
Принадлежит: LOCKHEED MARTIN CORPORATION

A sensor includes a first plate, a second plate, and a piezoelectric material portions. The piezoelectric material portions are positioned between the first plate and the second plate. The area of the piezoelectric material portions is less than the area of the plates. The plates can be supported with a center support structure. The width of the sensor is significantly greater than its height. The interstitial space is filled with a flexible material. An outside wall isolates the inside from the outside 1. A sensor comprising:a first plate;a second plate; anda plurality of piezoelectric material portions positioned between the first plate and the second plate.2. The sensor of wherein the plurality of piezoelectric material portions have a cross sectional area which is less than the cross sectional area of the first plate or the second plate.3. The sensor of wherein the plurality of piezoelectric material portions have a cross sectional area and the first plate and the second plate have a cross sectional area claim 1 , the ratio of the cross sectional area of the piezoelectric portions to the cross sectional area of one of the first plate and the second plate being in the range of 1:3 to 1:11.4. The sensor of wherein the plurality of piezoelectric material portions are ceramic.5. The sensor of wherein the plurality of piezoelectric material portions are ceramic posts.6. The sensor of wherein the plurality of piezoelectric material portions include openings therein for receiving a fastener claim 1 , the fastener attaching at least one of the piezoelectric material portion and the first plate and the second plate.76. The sensor of wherein the fastener aligns at least one of the piezoelectric material portion and the first plate and the second plate.8. The sensor of further comprising a layer of electrical isolation material placed between the portion of piezoelectric material and at least one of the first plate and the second plate.97. The sensor of claim wherein at ...

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Номер записи: 17
28-03-2013 дата публикации

TOUCH PAD CONTROLLER

Номер: US20130076206A1
Автор: Friedman Avichai, Rosenberg Armand
Принадлежит: BARAN ADVANCED TECHNOLOGIES (1986) LTD.

A system for controlling electrical appliances comprises a) a touch plate having an inner surface and an outer surface, which is accessible to a user; b) a piezoelectric module coupled with said inner surface of said touch plate and suitable to generate electric signals when deformed by pressure; c) a microcontroller connected to said piezoelectric module, said microcontroller being configured to analyze electrical signals generated by said piezoelectric module, to determine; d) circuitry coupled with said microcontroller, for receiving said control signals and for transmitting output signals to said electrical appliance; and e) a feedback module connected to said microcontroller, suitable to provide to a user feedback related to signals generated by said piezoelectric module. 1. A system for providing non-linear control over electrical appliances , comprising:(a) a touch plate having an inner surface and an outer surface, which is accessible to a user;(b) a piezoelectric sensor array coupled with said inner surface of said touch plate and suitable to generate electric signals when deformed by pressure;(c) a microcontroller connected to said piezoelectric module, said microcontroller being configured to analyze electrical signals generated by said piezoelectric module, to determine control signals therefrom;(d) circuitry coupled with said microcontroller, for receiving said control signals and for transmitting output signals to said electrical appliance; and(e) a feedback module connected to said microcontroller, suitable to provide to a user feedback related to signals generated by said piezoelectric module.2. A controller according to claim 1 , wherein the electrical appliance is selected from the group consisting of lights claim 1 , air conditions claim 1 , stoves claim 1 , amplifiers claim 1 , fans claim 1 , blenders claim 1 , industrial equipment and machinery claim 1 , volume modules and speakers.3. A controller according to claim 1 , wherein the piezoelectric ...

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Номер записи: 18
02-05-2013 дата публикации

Flexible Micro Bumps Operably Coupled to an Array of Nano-Piezoelectric Sensors

Номер: US20130106244A1
Автор: Li Xin, Liu Hongzhong, LIU Weihua
Принадлежит: XI'AN JIAOTONG UNIVERSITY

Implementations and techniques for manufacturing flexible micro bumps operably coupled to an array of nano-piezoelectric sensors are generally disclosed. 1. A method , comprising:depositing a plurality of bottom electrodes on a flexible substrate, wherein the deposited plurality of bottom electrodes have a substantially parallel pattern;depositing a plurality of nano-piezoelectric wires on the flexible substrate, wherein the deposited plurality of nano-piezoelectric wires have a substantially checkerboard pattern;depositing a plurality of top electrodes such that the plurality of top electrodes are electrically coupled to the plurality of nano-piezoelectric wires to form an array of nano-piezoelectric sensors, wherein the deposited plurality of top electrodes have a substantially parallel pattern; anddepositing a plurality of flexible micro bumps on the array of nano-piezoelectric sensors, wherein the plurality of flexible micro bumps are operably coupled to the array of nano-piezoelectric sensors.2. The method of claim 1 , further comprising:depositing a layer of catalyst on the substrate prior to depositing the nano-piezoelectric wires, wherein the deposited layer of catalyst has a substantially checkerboard pattern; andwherein depositing the plurality of nano-piezoelectric wires on the substrate comprises depositing the plurality of nano-piezoelectric wires on the layer of catalyst, wherein the plurality of nano-piezoelectric wires have a perpendicular orientation with respect to the substrate.3. The method of claim 1 , further comprising depositing a layer of flexible insulation material between the plurality of nano-piezoelectric wires prior to depositing the plurality of top electrodes.4. The method of claim 1 , further comprising:depositing a top layer of flexible insulation material on the plurality of top electrodes prior to depositing the plurality of flexible micro bumps; anddepositing a static-charge screen material on the top layer of flexible ...

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Номер записи: 19
16-05-2013 дата публикации

SHEAR FORCE DETECTION DEVICE, TACTILE SENSOR AND GRASPING APPARATUS

Номер: US20130119689A1
Автор: NISHIWAKI Tsutomu
Принадлежит: SEIKO EPSON CORPORATION

A shear force detection device for detecting a shear force includes: a support body including an opening defined by a pair of straight parts perpendicular to a detection direction of the shear force and parallel to each other; a support film on the support body and closing the opening, the support film having flexibility; a piezoelectric part on the support film and extending astride an inside and outside of the opening and along at least one of the pair of straight parts of the opening when viewed in a plane in which the support body is seen in a substrate thickness direction, the piezoelectric part being bendable to output an electric signal; and an elastic layer covering the piezoelectric part and the support film. 1. A force sensor comprising:a support body including a first opening defined by a first pair of straight parts perpendicular to a first direction and parallel to each other and a second opening defined by a second pair of straight parts perpendicular to a second direction and parallel to each other, the second direction crossing the first direction;a support film provided on the support body, the support film closing the first opening and the second opening;a first piezoelectric part provided on the support film and extending astride an inside and an outside of the first opening and along at least one of the first pair of straight parts;a second piezoelectric part provided on the support film and extending astride an inside and an outside of the second opening and along at least one of the second pair of straight parts; andan elastic layer covering the first piezoelectric part, the second piezoelectric part and the support film.2. The force sensor according to claim 1 , further comprising:a third opening provided in the support body, the third opening being closed by the support film; anda third piezoelectric part provided on the support film and inside the third opening, the third piezoelectric part being covered by the elastic layer.3. A grasping ...

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Номер записи: 20
20-06-2013 дата публикации

EXTERNAL FORCE DETECTION EQUIPMENT

Номер: US20130154442A1
Автор: KOYAMA Mitsuaki, MUTOH Takeru
Принадлежит: NIHON DEMPA KOGYO CO., LTD.

To easily detect an external force applied to a piezoelectric element with high accuracy and suppress influence of electrostatic charges accumulated in the piezoelectric element. A crystal element is cantilevered inside the container. Excitation electrodes are formed on upper and lower faces, respectively, of the crystal element. A movable electrode connected to the excitation electrode is provided in a leading end portion of the lower face side of the crystal element, and a stationary electrode is provided in a bottom portion of the container. An oscillation loop including the excitation electrodes, the movable electrode, the stationary electrode, and the oscillator circuit is formed. A capacitance change between the electrodes caused by a deflection of the crystal element due to an external force is detected as a frequency. A switch for opening or closing the neutralization path to discharge electrostatic charges generated in the crystal element to the ground is provided. 1. An external force detection equipment for detecting an external force applied to a piezoelectric element , comprising:a piezoelectric element, cantilevered onto a support portion in one end side;a pair of excitation electrodes, one excitation electrode and the other excitation electrode being provided in one face side and the other face side, respectively, of the piezoelectric element to vibrate the piezoelectric element;an oscillator circuit, electrically connected to the one excitation electrode;a movable electrode, for forming a variable capacitance, the movable electrode being provided in a portion distant from the one end side of the piezoelectric element and electrically connected to the other excitation electrode;a stationary electrode, provided separately from the piezoelectric element and oppositely to the movable electrode and connected to the oscillator circuit so as to form a variable capacitance based on a capacitance change between the stationary electrode and the movable ...

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Номер записи: 21
27-06-2013 дата публикации

Vibration power generation element and vibration power generation device including same

Номер: US20130162106A1
Автор: Junya Ogawa, Koichi Aizawa, Norihiro Yamauchi, Tomoaki Matsushima
Принадлежит: Panasonic Corp

A vibration power generation element includes a base substrate having a support portion and a cantilever portion, and a power generation unit for generating alternating current power in response to vibration of the cantilever portion. The power generation unit includes: a lower electrode formed on one surface side of the base substrate so as to overlap the cantilever portion; a first piezoelectric layer formed on an opposite side of the lower electrode from the cantilever portion; an intermediate electrode formed on an opposite side of the first piezoelectric layer from the lower electrode; a second piezoelectric layer formed on an opposite side of the intermediate electrode from the first piezoelectric layer; and an upper electrode formed on an opposite side of the second piezoelectric layer from the intermediate electrode.

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Номер записи: 22
11-07-2013 дата публикации

Pavement Interlayer

Номер: US20130175902A1
Автор: Abu Al-Rubb Khalil
Принадлежит:

A pavement interlayer, suitable for laying between layers of pavement, includes: at least one layer of interlayer material, a plurality of piezoelectric elements; at least one transmission line, coupled to the plurality of piezoelectric elements, for transmitting power generated by the plurality of piezoelectric elements to an output. 1. A pavement interlayer , suitable for laying between layers of pavement , comprising: at least one layer of interlayer material , a plurality of piezoelectric elements; at least one transmission line , coupled to the plurality of piezoelectric elements , for transmitting power generated by the plurality of piezoelectric elements to an output.2. The pavement interlayer according to claim 1 , wherein the plurality of piezoelectric elements are embedded within the at least one layer of pavement interlayer material claim 1 , or on or against the at least one layer of pavement interlayer material.3. The pavement interlayer according to claim 1 , wherein the plurality of piezoelectric elements are distributed in a predetermined manner through the pavement interlayer.4. The pavement interlayer according to claim 3 , wherein the plurality of piezoelectric elements are distributed in a grid pattern.5. The pavement interlayer according to claims 3 , wherein the pavement interlayer is for use on a road claims 3 , and the plurality of piezoelectric elements are distributed along two tracks.6. The pavement interlayer according to claim 1 , the interlayer being in the form of an elongate flexible sheet.7. The pavement interlayer according to claim 1 , wherein the at least one layer of pavement interlayer material is a geosynthetic material.8. The pavement interlayer according to claim 1 , the at least one layer of pavement interlayer material comprising a first and a second layer of pavement interlayer material claim 1 , wherein the plurality of piezoelectric elements are positioned between the first and second layers of pavement interlayer ...

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Номер записи: 23
18-07-2013 дата публикации

Piezoelectric Power Generator

Номер: US20130181578A1
Автор: FUJIMOTO Katsumi, Horiguchi Chikahiro, Kameda Eitaro
Принадлежит: MURATA MANUFACTURING CO., LTD.

A piezoelectric power generator that includes a first elastic body, which deforms along a first direction x upon receiving a stress, and a piezoelectric power-generating element. A second elastic body is arranged on a y1 side of the first elastic body and a piezoelectric element is fixed to a y1-side surface of the second elastic body. When the first elastic body bends into a shape that is concave toward the y1 side, the second elastic body receives a stress from the first elastic body. When the first elastic body bends into a shape that is convex toward the y1 side, the second elastic body does not receive a stress from the first elastic body. The piezoelectric power generator further includes a vibration suppressing member that is arranged between the first elastic body and the second elastic body and suppresses bending mode vibration of the second elastic body. 1. A piezoelectric power generator comprising:a first elastic body configured to deform upon receiving a stress;a piezoelectric power-generating element that includes a second elastic body arranged adjacent a first side of the first elastic body,wherein the piezoelectric power generator is structured such that, when the first elastic body deforms into a shape that is concave relative to the first side of the first elastic body, the second elastic body receives a stress from the first elastic body and deforms into a concave shape, and when the first elastic body deforms into a shape that is convex relative to the first side of the first elastic body, the second elastic body does not receive a stress from the first elastic body; anda vibration suppressing member arranged relative to the first elastic body and the second elastic body so as to suppress a bending mode vibration of the second elastic body.2. The piezoelectric power generator according to claim 1 , wherein the vibration suppressing member is at least partially arranged between the first elastic body and the second elastic body.3. The ...

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Номер записи: 24
22-08-2013 дата публикации

DEVICE WITH SUSPENDED BEAM AND PIEZORESISTIVE MEANS OF DETECTING DISPLACEMENT OF THE BEAM AND METHOD OF MANUFACTURING THE DEVICE

Номер: US20130214644A1
Автор: Andreucci Philippe, COLINET Eric, DURAFFOURG Laurent, Hentz Sebastien, Labarthe Sébastien
Принадлежит: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALT

A device with a suspended beam and piezoresistive means of detecting displacement of the beam and a method of manufacturing the device are disclosed. The device comprises a support, a suspended beam, moving parallel to the plane of the support, and means of detecting displacement, comprising at least two piezoresistive strain gauges that are not in line with each other. The beam is suspended through detection means. The two gauges are located on two opposite lateral faces of the beam respectively. 110-. (canceled)11. A device with a suspended beam and piezoresistive means of detecting displacement of the beam , the device comprising:a support comprising an approximately plane surface;a beam which is suspended from the support and capable of moving parallel to the plane of the surface of the support; andmeans of detecting displacement of the beam, comprising at least two approximately straight piezoresistive strain gauges suspended from the support, the two strain gauges not being in line with each other,in which the beam is suspended from the support through the detection means and is thus not anchored to the support directly, andin which said at least two strain gauges are located on two opposite lateral faces of the beam respectively.12. The device according to claim 11 , in which each strain gauge comprises a stack comprising at least one piezoresistive material.13. The device according to claim 11 , in which the beam forms a resonator and the device also comprises means of actuating the beam.14. The device according to claim 13 , in which the beam actuation means are electrostatic.15. The device according to claim 11 , in which the beam has a constant cross-section.16. The device according to claim 11 , in which the beam has a variable cross-section.17. The device according to claim 11 , in which the two ends of the beam are capable of moving parallel to the plane of the surface of the support claim 11 , and the strain gauges are at a distance from the two ends ...

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Номер записи: 25
29-08-2013 дата публикации

Sensor Element, Sensor Device, And Electronic Apparatus

Номер: US20130221804A1
Автор: ICHIKAWA Fumio
Принадлежит: SEIKO EPSON CORPORATION

A sensor element includes a base, vibrating arms for detection extended from the base, and first to fourth detecting sections provided in the vibrating arms for detection. The first to fourth detecting sections respectively include lower electrode layers, upper electrode layers, and piezoelectric layers. The lower electrode layers of the first and second detecting sections are electrically connected to each other. The lower electrodes of the third and fourth detecting sections are electrically connected to each other. 1. A sensor element comprising:a base;a vibrating arm for detection extended from the base; anda first detecting section and a second detecting section provided in the vibrating arm for detection and configured to output charges according to vibration of the vibrating arm for detection, whereinthe first detecting section includes a first lower electrode layer, a first upper electrode layer, and a first piezoelectric layer provided between the first lower electrode layer and the first upper electrode layer, the first lower electrode layer being provided above the vibrating arm for detection side,the second detecting section includes a second lower electrode layer, a second upper electrode layer, and a second piezoelectric layer provided between the second lower electrode layer and the second upper electrode layer, the second lower electrode layer being provided above the vibrating arm for detection side, andthe first lower electrode layer and the second lower electrode layer or the first upper electrode layer and the second upper electrode layer are electrically connected.2. The sensor element according to claim 1 , wherein the first lower electrode layer and the second lower electrode layer are electrically connected to each other by the vibrating arm for detection.3. The sensor element according to claim 1 , further comprising:a vibrating arm for driving extended from the base; anda driving section provided in the vibrating arm for driving and ...

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Номер записи: 26
05-09-2013 дата публикации

POWER COLLECTOR STRUCTURE AND METHOD

Номер: US20130229089A1
Автор: Seppä Heikki
Принадлежит: MURATA ELECTRONICS OY

A power collector structure connected to a base is repetitively deformed or bent. The power collector structure is bar-like, and is connected to the base in an essentially rigid manner. A power collector for converting mechanical energy to electric power is connected to the power collector structure. 1. A power collector structure connected to a base being repetitively deformed or bent , the power collector structure is bar-like,', 'the power collector structure is connected to a base in an essentially rigid manner, and', 'a power collector for converting mechanical energy to electric power is connected to the power collector structure., 'wherein'}2. The power collector structure according to claim 1 , wherein the power collector structure is connected to the base so rigidly claim 1 , that the intrinsic resonance frequency of the power collector structure determines the total resonance frequency to at least 50%.3. The power collector structure according to claim 1 , wherein the power collector structure comprises an electromechanical converter.4. The power collector structure according to claim 1 , wherein the base is the inner surface of the periphery of a car tire.5. The power collector structure according to claim 1 , wherein the base is a shoe or a part of it.6. The power collector structure according to claim 1 , wherein the power collector comprises bias means for providing a MEMS element with a bias voltage.7. The power collector structure according to claim 6 , wherein the bias means for providing the bias voltage is implemented by means of a piezoelectric element.8. The power collector structure according to claim 6 , wherein the bias means for providing the bias voltage is implemented by means of a suitable material couple.9. The power collector structure according to claim 1 , wherein the power collector comprises a piezoelectric element.10. The power collector structure according to claim 1 , wherein gauging electronics are integrated in the power ...

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Номер записи: 27
19-09-2013 дата публикации

SENSOR ELEMENT, SENSOR DEVICE, AND ELECTRONIC APPARATUS

Номер: US20130241353A1
Автор: ASARI Tomotaka
Принадлежит: SEIKO EPSON CORPORATION

A sensor element includes a base part, a detection vibrating arm extended from the base part, and detection parts that are provided on the detection vibrating arm and detect flexural vibration of the detection vibrating arm, the detection parts each have a first electrode layer, a second electrode layer provided at an opposite side to the detection vibrating arm with respect to the first electrode layer, and a piezoelectric layer provided between the first electrode layer and the second electrode layer, and the detection parts have parts provided over boundary parts between the detection vibrating arm and the base part and the parts bend or curve to extend in a direction including a direction component orthogonal to an extension direction of the detection vibrating arm along side surfaces of the detection vibrating arm and the base part. 1. A sensor element comprising:a base part;a vibrating arm extended from the base part;a detection part that is provided above the vibrating arm and the base part and detects flexural vibration of the vibrating arm,wherein the detection part has a first electrode layer, a second electrode layer, and a piezoelectric layer provided between the first electrode layer and the second electrode layer, andthe detection part bends or curves to extend in a direction including a direction component orthogonal to an extension direction of the vibrating arm along side surfaces of the vibrating arm and the base part.2. The sensor element according to claim 1 , wherein an end of the detection part at the base part side is located at an outer side of the vibrating arm than a virtual surface formed by extending the side surface of the vibrating arm along the extension direction of the vibrating arm.3. The sensor element according to claim 2 , wherein claim 2 , given that a width of the vibrating arm is Ws and a distance between the virtual surface and the end of the detection part at the base part side is Ls claim 2 , Ls/Ws is equal to or less than ...

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Номер записи: 28
03-10-2013 дата публикации

ENERGY HARVESTING DEVICE

Номер: US20130257219A1
Автор: Maitre Christophe, MONFRAY Stéphane, Puscasu Onoriu, Skotnicki Thomas
Принадлежит: STMICROELECTRONICS (CROLLES 2) SAS

An energy harvester including first and second sheets; and a plurality of walls, each wall being sandwiched between the first and second sheets and surrounding a cavity, wherein each cavity houses at least one curved plate adapted to change from a first shape to a second shape when its temperature reaches a first threshold and to return to the first shape when its temperature falls to a second threshold lower than said first threshold. 1. An energy harvester comprising:first and second sheets; anda plurality of walls, each wall being sandwiched between the first and second sheets and surrounding a cavity, wherein each cavity houses at least one curved plate adapted to change from a first shape to a second shape when its temperature reaches a first threshold and to return to the first shape when its temperature falls to a second threshold lower than said first threshold.2. The energy harvester of claim 1 , wherein each of said cavities houses a single curved plate.3. The energy harvester of claim 1 , wherein each of said cavities houses a plurality of curved plates interconnected by fingers to form a matrix.4. The energy harvester of claim 1 , wherein claim 1 , between said first and second sheets claim 1 , there is a space separating a first of said walls from a second of said walls.5. The energy harvester of claim 1 , further comprising claim 1 , within each of said cavities claim 1 , a printed layer of piezoelectric material adapted to be deformed by said curved plate.6. The energy harvester of claim 5 , wherein said piezoelectric layer is printed onto an inner surface of each cavity on a surface of said first sheet.7. The energy harvester of claim 5 , wherein said piezoelectric layer is printed on a surface of each curved plate.8. The energy harvester of claim 1 , wherein said inner walls are arranged in at least one column and in at least one row.9. The energy harvester of claim 1 , wherein each of said curved plates comprises a layer of a first metal superposed ...

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Номер записи: 29
31-10-2013 дата публикации

VIBRATION POWER GENERATING ELEMENT AND VIBRATION POWER GENERATING DEVICE USING SAME

Номер: US20130285507A1
Автор: Aizawa Koichi, Matsushima Tomoaki, Ogawa Junya, Yamauchi Norihiro
Принадлежит: Panasonic Corporation

A vibration power generating element comprises: a substrate provided with a supporting part and a cantilever that is swingably supported by the supporting part; and a power generation part formed at the cantilever and generating AC power in response to swing of the cantilever. The power generation part is provided with first and second piezoelectric converters apposed at a region that overlaps the cantilever at one surface side of the substrate. The vibration power generating element is further provided with a common electrode and individual electrodes. The common electrode is electrically connected to a lower electrode shared by the first and second piezoelectric converters. The individual electrodes are individually connected to upper electrodes of the first and second piezoelectric converters, respectively. 1. A vibration power generating element , comprising:a substrate provided with a supporting part and a cantilever that is swingably supported by said supporting part; anda power generation part formed at said cantilever and generating AC power in response to swing of said cantilever,wherein said power generation part is provided with a first piezo-electric converter and a second piezoelectric converter, said first and second piezoelectric converters being apposed at a region that overlaps said cantilever at one surface side of said substrate,wherein each of said first and second piezoelectric converters comprises: a lower electrode located at said cantilever side; a piezoelectric layer formed on a surface of said lower electrode, said surface being at the opposite side of said cantilever side through said lower electrode; and an upper electrode formed on a surface of said piezoelectric layer, said surface being at the opposite side of said lower electrode side through said piezoelectric layer, andwherein the vibration power generating element is further provided, at said one surface side of said substrate, with a common electrode and individual electrodes, ...

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Номер записи: 30
07-11-2013 дата публикации

SYSTEM FOR HARVESTING ENERGY FROM DOOR OR DOOR HARDWARE MOVEMENT

Номер: US20130293067A1
Автор: Hoff Bryan D., Tamer Samir M.
Принадлежит: XCEEDID CORPORATION

An electrical generation system for a doorway including a door includes a lock mechanism movable between an engaged position and a disengaged position to allow the door to move between a closed position and an open position and a cam coupled to the door. A piezo-electric generator is coupled to the cam. The cam is rotatable with respect to the piezo-electric generator. The piezo-electric generator is operable to produce an electrical current in response to rotation of the cam with respect to the piezo-electric generator, and the electrical current has a frequency that is greater than the number of revolutions made by the cam with respect to the piezo-electric generator. 1. An electrical generation system for a doorway including a door , the system comprising:a lock mechanism movable between an engaged position and a disengaged position to allow the door to move between a closed position and an open position;a cam coupled to the door; anda piezo-electric generator coupled to the cam, wherein the cam is rotatable with respect to the piezo-electric generator, wherein the piezo-electric generator is operable to produce an electrical current in response to rotation of the cam with respect to the piezo-electric generator, and wherein the electrical current has a frequency that is greater than the number of revolutions made by the cam with respect to the piezo-electric generator.2. The electrical generation system of claim 1 , wherein the electrical current has a frequency between 50 Hz and 200 Hz.3. The electrical generation system of claim 1 , wherein the cam includes a first surface and a plurality of bumps positioned on the surface claim 1 , each of the bumps cooperating with an adjacent bump to define a recess therebetween.4. The electrical generation system of claim 3 , wherein the piezo-electric generator includes a roller that engages the first surface and the bumps to move in a cyclic fashion in response to movement of the cam with respect to the piezo-electric ...

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Номер записи: 31
12-12-2013 дата публикации

MAGNETOSTRICTIVE POWER SUPPLY FOR BOTTOM HOLE ASSEMBLY WITH ROTATION-RESISTANT HOUSING

Номер: US20130328442A1
Автор: Dudley James H., Hay Richard Thomas, Samuel Robello
Принадлежит:

A power supply includes a rotor having an undulated surface () and a magnetostrictive material disposed adjacent to the undulated surface. The undulated surface alternatingly compresses the magnetostrictive material as the rotor rotates, inducing an electric current in a conductor coupled to the magnetostrictive material. 1. A power supply comprising:a rotor comprising an undulated surface; anda magnetostrictive material disposed adjacent to the undulated surface;wherein the undulated surface alternatingly compresses the magnetostrictive material as the rotor rotates, inducing an electric current in a conductor coupled to the magnetostrictive material.2. The power supply of claim 1 , further comprising:a magnetostrictive array comprising the magnetostrictive material in a plurality of members disposed adjacent to the undulated surface.3. The power supply of claim 1 , wherein the rotor comprises:a shaft rotatably coupled with a cam rotor, wherein the cam rotor comprises the undulated surface.4. The power supply of claim 1 , further comprising:a magnetostrictive array comprising the magnetostrictive material in a plurality of members disposed adjacent to the undulated surface; andwherein the rotor comprises a shaft, and the plurality of members is oriented along an axis of the shaft.5. The power supply of claim 4 , wherein the rotor comprises the undulated surface and a flat-faced member claim 4 , and wherein the plurality of members is disposed between the undulated surface and the flat-faced member.6. The power supply of claim 1 , further comprising:a magnetostrictive array comprising the magnetostrictive material in a plurality of members disposed adjacent to the undulated surface; andwherein the rotor comprises a shaft, and the plurality of members is oriented radially with respect to an axis of the shaft.7. The power supply of . wherein the undulated surface comprises a symmetrical pattern.8. The power supply of claim 2 , further comprising:a conductor ...

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Номер записи: 32
12-12-2013 дата публикации

PIEZOELECTRIC POWER GENERATOR

Номер: US20130328446A1
Автор: Horiguchi Chikahiro, Sakaguchi Hitoshi
Принадлежит: MURATA MANUFACTURING CO., LTD.

Provided is a piezoelectric power generator that has an overall compact size and in which a plurality of piezoelectric elements having a low natural frequency of vibration and that generate a large amount of power can be arranged in a compact manner. 1. A piezoelectric power generator comprising:a box-shaped housing including first and second walls that oppose each other across a space of the housing,a first piezoelectric element having a fixed end portion that is fixed to the first wall of the housing and a free end portion that extends toward the second wall of the housing;a second piezoelectric element having a fixed end portion that is fixed to the second wall of the housing and a free end portion that extends toward the first wall of the housing;a first weight coupled to a bottom surface of the free end portion of the first piezoelectric element, such that at least a portion of the first weight is disposed in the space of the housing; anda second weight coupled to a bottom surface of the free end portion of the second piezoelectric element, such that at least a portion of the second weight is disposed in the space of the housing.2. The piezoelectric power generator according to claim 1 , wherein the first piezoelectric element and the second piezoelectric element extend in a direction parallel to one another.3. The piezoelectric power generator according to claim 2 , wherein the first piezoelectric element and the second piezoelectric element are arranged with a space therebetween in a width direction of the box-shaped housing.4. The piezoelectric power generator according to claim 1 , wherein the second piezoelectric element comprises a pair of elements that extend in a direction parallel to the first piezoelectric element.5. The piezoelectric power generator according to claim 4 , wherein the first piezoelectric element extends between the pair of elements of the second piezoelectric element.6. The piezoelectric power generator according to claim 5 ,wherein ...

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Номер записи: 33
06-03-2014 дата публикации

GRAVITY DROPPED SMALL WEAPON ELECTRONIC SAFE ARM FUZE AND ENERGY HARVESTING DEVICE FOR POWER GENERATION ONBOARD GRAVITY DROPPED WEAPONS

Номер: US20140060367A1
Автор: Murray Richard T., Rastegar Jahangir S.
Принадлежит: OMNITEK PARTNERS LLC

A generator including: a member having a cable wound thereon, the cable having a free end; a spring for storing energy as the cable is unwound from the member by pulling on the free end; and an electromagnetic generator operatively connected to the member such that rotation of the member is transferred to an input side of the electromagnetic generator after the cable is unwound from the member and the stored energy in the spring turns the member. 1. A generator comprising:a member having a cable wound thereon, the cable having a free end;a spring for storing energy as the cable is unwound from the member by pulling on the free end; andan electromagnetic generator operatively connected to the member such that rotation of the member is transferred to an input side of the electromagnetic generator after the cable is unwound from the member and the stored energy in the spring turns the member.2. The generator of claim 1 , further comprising a casing having an opening to expose the free end of the cable.3. The generator of claim 1 , wherein the member is a drum.4. The generator of claim 3 , wherein the drum includes a drum gear which turns with the drum.5. The generator of claim 4 , wherein the electromagnetic generator includes a generator input gear on the input side at least indirectly connected to the drum gear.6. The generator of claim 5 , further comprising a clutch having a clutch input gear engaged with the drum gear and a clutch output gear engaged with the generator input gear claim 5 , wherein the clutch is configured to transfer rotation of the clutch input gear to rotation of the clutch output gear after the cable is unwound from the member and the stored energy in the spring turns the drum.7. The generator of claim 2 , wherein the spring has a first end connected to the member and a second end connected to the casing.8. The generator of claim 2 , further comprising a clutch gear operatively connected to the drum such that the rotation of the drum is at ...

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Номер записи: 34
06-03-2014 дата публикации

ULTRASONIC SENSOR DEVICE

Номер: US20140062260A1
Автор: Chang Chiun-Hua, Lee Shih-Feng, Tsai Tzu-Chin
Принадлежит: TUNG THIH ELECTRONIC CO., LTD.

An ultrasonic sensor device includes a housing, a transducer, a securing unit and a circuit board. The housing has an enclosing portion formed with first and second openings. The transducer is mounted to the enclosing portion at the second opening, and includes an electrically conductive surrounding wall and a piezoelectric member. The securing unit includes a securing component that secures the transducer on the enclosing portion, and a connecting pin set including two pins each having an end connected electrically to a respective one of the surrounding wall and the piezoelectric member. The circuit board is disposed at the first opening of the enclosing portion for electrical connection with the connecting pin set. 1. An ultrasonic sensor device , comprising:a housing includingan enclosing portion formed with a first opening and a second opening that is opposite to said first opening and that is in spatial communication with said first opening, said first opening and said second opening being aligned along an imaginary axis,a connecting portion having a first end connected to said enclosing portion and a second end formed with a third opening, andan outer connecting pin set disposed in said enclosing portion and having one end extended toward said first opening and another end extended into said connecting portion toward said third opening; a base wall,', 'a surrounding wall that is made of an electrically conductive material, that extends from a periphery of said base wall in a direction of the imaginary axis, that is secured to said enclosing portion, and that is formed with a pin engaging hole that opens toward said first opening of said enclosing portion, and', 'a piezoelectric member disposed on one surface of said base wall that faces toward said first opening of said enclosing portion;, 'a transducer being mounted to said enclosing portion at said second opening, and including'}a securing unit including a securing component that secures said surrounding ...

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Номер записи: 35
27-03-2014 дата публикации

Mems-based cantilever energy harvester

Номер: US20140087509A1
Автор: Bruce E. Gnade, Erika Fuentes-Fernandez, Pradeep Shah, Wardia Mechtaly-Debray
Принадлежит: Texas Micropower Inc, University of Texas System

The claimed invention is directed to integrated energy-harvesting piezoelectric cantilevers. The cantilevers are fabricated using sol-gel processing using a sacrificial poly-Si seeding layer. Improvements in film microstructure and electrical properties are realized by introducing a poly-Si seeding layer and by optimizing the poling process.

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Номер записи: 36
07-01-2021 дата публикации

MONOLITHICALLY INTEGRATED MULTI-SENSOR DEVICE ON A SEMICONDUCTOR SUBSTRATE AND METHOD THEREFOR

Номер: US20210002129A1
Автор: GOGOI BISHNU PRASANNA
Принадлежит: Versana Micro Inc.

A monolithically integrated multi-sensor (MIMS) is disclosed. A MIMs integrated circuit comprises a plurality of sensors. For example, the integrated circuit can comprise three or more sensors where each sensor measures a different parameter. The three or more sensors can share one or more layers to form each sensor structure. In one embodiment, the three or more sensors can comprise MEMs sensor structures. Examples of the sensors that can be formed on a MIMs integrated circuit are an inertial sensor, a pressure sensor, a tactile sensor, a humidity sensor, a temperature sensor, a microphone, a force sensor, a load sensor, a magnetic sensor, a flow sensor, a light sensor, an electric field sensor, an electrical impedance sensor, a galvanic skin response sensor, a chemical sensor, a gas sensor, a liquid sensor, a solids sensor, and a biological sensor. 1. A monolithically integrated multi-sensor (MIMS) comprising:a first sensor configured to measure a first parameter;a second sensor configured to measure a second parameter;a third sensor configured to measure a third parameter wherein the first, second, and third parameters are different, wherein the first, second, and third sensors are formed on or in a single semiconductor substrate using a monolithic semiconductor process, and wherein the a layer of the monolithic semiconductor process is common to the first, second, and third sensors.2. The monolithically integrated multi-sensor of wherein the first sensor is a micro-electrical-mechanical system (MEMS) sensor.3. The monolithically integrated multi-sensor of wherein the second sensor is a MEMS sensor.4. The monolithically integrated multi-sensor of wherein the third sensor comprises a MEMS sensor.5. The monolithically integrated multi-sensor of wherein the layer of the monolithic semiconductor process is patterned and etched simultaneously on the first claim 1 , second claim 1 , and third sensors.6. The monolithically integrated multi-sensor of wherein the ...

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Номер записи: 37
05-01-2017 дата публикации

ELECTRIC ENERGY HARVESTER USING ULTRASONIC WAVE

Номер: US20170005258A1
Автор: HINCHET Ronan, Khan Usman, KIM Sang Woo, Kim Seong Su, LEE Ju-hyuck, SEUNG Wan chul, YOON Hong Joon
Принадлежит: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY

There is provided an electric energy generator system comprising: an ultrasonic-wave emission device configured to generate an ultrasonic-wave and emit the ultrasonic-wave; and an electric energy generator device configured to generate an electric energy upon a receipt of the emitted ultrasonic-wave. 1. An electric energy generator system comprising:an ultrasonic-wave emission device configured to generate an ultrasonic-wave and emit the ultrasonic-wave; andan electric energy generator device configured to generate an electric energy upon a receipt of the emitted ultrasonic-wave.2. The system of claim 1 , wherein the ultrasonic-wave emission device comprises:an ultrasonic-wave generator configured to generate the ultrasonic-wave; andultrasonic-wave emitter configured to emit the generated ultrasonic-wave.3. The system of claim 1 , wherein the electric energy generator device has a closed inner space defined therein and the electric energy generator device is insertable into a living body.4. The system of claim 1 , wherein the electric energy generator device comprises:a substrate;an electrode on the substrate;a first friction-charged member on the electrode;a spacer disposed on the substrate so as to surround the electrode and the first friction-charged member; anda second friction-charged member disposed on the spacer to be spaced from the first friction-charged member, wherein the second friction-charged member repeatedly contacts or is separated from the first friction-charged member,wherein a closed inner space is defined between the first friction-charged member and the second friction-charged member and the spacer,wherein when the electric energy generator device receives the emitted ultrasonic-wave, a pressure in the inner space changes, to allow deformation of the second friction-charged member and thus repetitions of the contact and separation between the first and second friction-charged members, to generate a triboelectric energy.5. The system of claim 4 ...

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Номер записи: 38
07-01-2016 дата публикации

PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR DEVICE, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND ULTRASONIC MEASURING APPARATUS

Номер: US20160005950A1
Автор: ITAYAMA Yasuhiro, YONEMURA Takayuki
Принадлежит:

Provided is a piezoelectric element in which a first electrode, a piezoelectric layer, and a second electrode are sequentially stacked on a substrate, the piezoelectric layer being formed of composite oxide having a perovskite structure which contains at least Pb, Nb, and Ti, in which the piezoelectric layer has a tetragonal crystal structure, the crystal is oriented to {100} against the substrate, and regions are mixed in a crystal lattice, each region including a (100) plane and a (001) plane which are orthogonal to a stacking direction, and the composite oxide of the piezoelectric layer is represented by the following general expression. 1. A piezoelectric element in which a first electrode , a piezoelectric layer , and a second electrode are sequentially stacked on a substrate , the piezoelectric layer being formed of composite oxide having a perovskite structure which contains at least Pb , Nb , and Ti , whereinthe piezoelectric layer has a tetragonal crystal structure, the crystal is oriented to {100} against the substrate, and regions are mixed in a crystal lattice, each region including a (100) plane and a (001) plane which are orthogonal to a stacking direction, and {'br': None, 'i': x', 'y', 'z, 'sub': 1/3', '2/3', '3', '3', '3, 'Pb(Ni,Nb)O-PbZrO-PbTiO'}, 'the composite oxide of the piezoelectric layer is represented by the general expression'}where 10≦x≦40, 0 Подробнее

Номер записи: 39
07-01-2016 дата публикации

Thermoelectric Generator

Номер: US20160006373A1
Автор: Conard Spencer D.
Принадлежит:

A thermoelectric generator includes a shape memory material configured to change shape due to a change in temperature, the shape memory material being further configured to cyclically receive heat from a heat source. The thermoelectric generator further includes a piezoelectric material coupled to the shape memory material, the piezoelectric material configured to produce electricity in response to the changed shape of the shape memory material. 1. A thermoelectric generator , comprising:a shape memory material configured to change shape due to a change in temperature, the shape memory material being further configured to cyclically receive heat from a heat source; anda piezoelectric material coupled to the shape memory material, the piezoelectric material configured to produce electricity in response to the changed shape of the shape memory material.2. The thermoelectric generator of claim 1 , wherein the shape memory material comprises at least one of the following: a plastic and an alloy.3. The thermoelectric generator of claim 1 , wherein the piezoelectric material comprises zinc oxide strands.4. The thermoelectric generator of claim 1 , wherein the piezoelectric material comprises zinc oxide strands arranged as nanowires.5. The thermoelectric generator of claim 1 , wherein the shape memory material and piezoelectric material are configured together in at least one of a matrix claim 1 , in a woven construction claim 1 , in a parallel construction claim 1 , in a linear construction claim 1 , with mechanical connections claim 1 , with an adhesive construction claim 1 , and with fasteners.6. The thermoelectric generator of claim 1 , further comprising the heat source comprising at least one of the following: a power plant claim 1 , a vehicle claim 1 , a machine claim 1 , a refrigeration device claim 1 , an electrical device claim 1 , a solar source claim 1 , and a biological reaction.7. The thermoelectric generator of claim 1 , further comprising the heat source ...

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Номер записи: 40
04-01-2018 дата публикации

Piezoelectric package-integrated sensing devices

Номер: US20180006208A1
Автор: Adel A. Elsherbini, Feras Eid, Georgios C. Dogiamis, Johanna M. Swan, Sasha N. OSTER, Shawna M. LIFF, Thomas L. SOUNART
Принадлежит: Intel Corp

Embodiments of the invention include a sensing device that includes a base structure having a proof mass that is positioned in proximity to a cavity of an organic substrate, a piezoelectric material in contact with a first electrode of the base structure, and a second electrode in contact with the piezoelectric material. The proof mass deflects in response to application of an external force or acceleration and this deflection causes a stress in the piezoelectric material which generates a voltage differential between the first and second electrodes.

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Номер записи: 41
03-01-2019 дата публикации

SURFACE-MOUNT PIEZOELECTRIC SENSOR APPLIED TO LOGISTICS FOR REAL-TIME MONITORING

Номер: US20190006576A1
Автор: CHUANG CHENG HSIN, HUANG CHUNG LIN, WANG CHENG AN
Принадлежит:

A surface-mount piezoelectric sensor applied to logistics for real-time monitoring is provided. The piezoelectric sensor includes a flexible substrate in the form of a cross and a conductive line formed on the flexible substrate. A plurality of sensing members corresponding in number to end faces of a packaging box is adhered to the conductive line. The cross-shaped piezoelectric sensor is placed at the bottom of the packaging box, and the sensing members of the piezoelectric sensors are bonded to the respective end faces of the packaging box by means of a turnover operation, thereby simplifying the operation process and providing an all-round monitoring effect. 1. A surface-mount piezoelectric sensor applied to logistics for real-time monitoring , comprising a flexible substrate in the form of a stripe and a conductive line formed on the flexible substrate , a plurality of sensing members being adhered to the conductive line , a rear end of the conductive line being provided with a connecting member for connecting the piezoelectric sensor with a back-end circuit.2. The surface-mount piezoelectric sensor applied to logistics for real-time monitoring as claimed in claim 1 , wherein the flexible substrate is a flexible printed circuit board.3. The surface-mount piezoelectric sensor applied to logistics for real-time monitoring as claimed in claim 1 , wherein the connecting member is a connecting finger.4. The surface-mount piezoelectric sensor applied to logistics for real-time monitoring as claimed in claim 1 , wherein the piezoelectric sensor is attached to an adhesive surface of a transparent tape with a double-sided adhesive tape.5. A surface-mount piezoelectric sensor applied to logistics for real-time monitoring claim 1 , comprising a flexible substrate in the form of a cross and a conductive line formed on the flexible substrate claim 1 , a plurality of sensing members corresponding in number to end faces of a packaging box being adhered to the conductive line ...

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Номер записи: 42
08-01-2015 дата публикации

INSULATED TRANSMISSION MEDIUM AND INSULATED TRANSMISSION APPARATUS

Номер: US20150008767A1
Автор: HARA KAZUNORI, Shinoda Hiroshi, Terada Takahide
Принадлежит:

Provided is an insulated transmission medium which transmits electromagnetic energy between circuits having different reference potentials and has high insulation reliability. In order to realize the insulated transmission medium with a low loss, a small size, and a low cost, the insulated transmission medium according to the present invention is an insulated transmission medium which transmits the electromagnetic energy between a first circuit having a first reference potential and a second circuit having a second reference potential. The insulated transmission medium includes a first resonator and a second resonator connected to the first circuit and the second circuit, respectively, the first resonator and the second resonator are respectively configured as a first conductor group and a second conductor group using conductors in a dielectric material multilayer substrate including a plurality of dielectric material layers, and the first conductor group and the second conductor group are coated with the dielectric material and are isolated from each other. 1. An insulated transmission medium , comprising:a dielectric material multilayer substrate which includes a plurality of dielectric material layers;a first resonator which is provided on the substrate and has a first reference potential; anda second resonator which is provided on the substrate, has a second reference potential different from the first reference potential, and is electrically insulated from the first resonator,wherein electromagnetic energy is transmitted between the first resonator and the second resonator.2. The insulated transmission medium according to claim 1 , whereinthe first resonator includes a first main resonating unit and a first auxiliary resonating unit, andthe second resonator includes a second main resonating unit and a second auxiliary resonating unit.3. The insulated transmission medium according to claim 2 , whereinthe first resonator is provided on a first dielectric material ...

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Номер записи: 43
08-01-2015 дата публикации

PIEZOELECTRIC POWER GENERATOR

Номер: US20150008795A1
Автор: HAN Seung-Ho, Kang Chan Hee, Kang Hyung-Won, Lee Hyeung-Gyu, Oh Sun Mi, Sohn Hyunsoo, Yoo Chan-Sei
Принадлежит:

A piezoelectric power generator can be used regardless of the size of the parts, and can position the mass center of a mass at the center by disposing the free ends of cantilevers opposite each other when connecting a plurality of cantilevers in series. The piezoelectric power generator is a morph structure cantilever piezoelectric power generator having at least two cantilevers disposed with their free ends opposite to each other, and a mass that is one body provided for bending of the cantilevers. 1. A morph structure cantilever piezoelectric power generator comprising:at least two cantilevers with their free ends opposite each other; anda mass that is one body provided for bending of the cantilevers.2. The piezoelectric power generator of claim 1 , further comprising free end supports disposed on the mass to support the free ends claim 1 , and having a ring shape such that the free ends are movably supported on the mass when the cantilevers bend.3. The piezoelectric power generator of claim 2 , wherein the free end supports are fixed to the mass by bolts or an adhesive.4. The piezoelectric power generator of claim 1 , further comprisingfixed end supports that fix the fixed ends of the cantilevers,wherein the fixed ends are fixed to the fixed end support by bolts or an adhesive.5. The piezoelectric power generator of claim 2 , wherein the masses are stacked at least in two layers.6. The piezoelectric power generator of claim 2 , wherein the cantilevers are electrically connected in parallel.7. The piezoelectric power generator of claim 5 , wherein the masses stacked in at least two layers are electrically connected in parallel.8. The piezoelectric power generator of claim 1 , wherein the mass has a symmetric shape such as disk and a rectangle.9. A cantilever piezoelectric power generator comprising:at least two cantilevers with their free ends opposite each other;a mass that is one body provided for bending of the cantilevers; andfree end supports disposed on the ...

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Номер записи: 44
08-01-2015 дата публикации

ULTRASONIC SENSOR ASSEMBLY

Номер: US20150008796A1
Автор: SUN Hae Young
Принадлежит: Hyundai Mobis Co., Ltd.

Provided is an ultrasonic sensor assembly. The present invention simplifies an assembly structure of the ultrasonic sensor assembly, and thus enables a process of the ultrasonic sensor assembly to be performed as an automation process. 1. An ultrasonic sensor assembly comprising:a hollow housing, a through hole being through-formed at one end of the housing, and an accommodating port being formed to be opened at the other end;a case inserted into and disposed at the through hole;a fixing member disposed between one end inner circumference surface of the housing and an outer circumference surface of the case to couple the case to the housing;a front supporting cover configured to comprise a side wall that is coupled to one end outer circumference surface of the housing and a supporting part that is formed to be bent in a direction from the side wall to the case and supports one surface of the fixing member;a piezo-electric element mounted on an inner bottom portion formed at one end of the case;a printed circuit board (PCB) disposed in the housing;a connection member, one end of the connection member being electrically connected to the piezo-electric element, and the other end being connected to an extension pin; anda sound-absorbing material charged into the case,wherein,an inner diameter of the supporting part is formed less than a maximum diameter of the fixing member, and one surface of the fixing member is supported by the supporting part, thereby preventing the case coupled to the fixing member from deviating in one end direction of the housing, andthe extension pin is inserted into the housing in a state in which one end and the other end of the extension pin are exposed from the housing, the one end of the extension pin is connected to the connection member, and the other end of the extension pin is connected to the PCB.2. The ultrasonic sensor assembly of claim 1 , further comprising a covering member coupled to the other end of the housing to seal an inside ...

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Номер записи: 45
27-01-2022 дата публикации

MULTI-AXIAL ANGULAR VELOCITY SENSOR

Номер: US20220026457A1
Автор: SOEJIMA Munetaka, TAKANAMI Shun
Принадлежит:

In a multi-axial angular velocity sensor, a substrate part perpendicular to a D3 axis includes a pair of long sides parallel to a D2 axis and a pair of short sides parallel to a D1 axis. Three sensor elements for the three axes are mounted on an upper surface of the substrate part. A piezoelectric body of each of the sensor elements comprises a plurality of arms. Theses arms extend in a predetermined direction of extension in a plane perspective of the upper surface. The piezoelectric body has the direction of extension as its long direction. Two of the three sensor element are arranged side by side in a direction along the short sides of the substrate part with orientations so that the directions of extension become parallel to the long sides. A remaining one is arranged in a direction along the long sides relative to the two elements with an orientation so that the direction of extension becomes parallel to the short sides. 1. A multi-axial angular velocity sensor comprising:a package comprising a substrate part, the substrate part comprising a first surface perpendicular to a third axis among a first axis, second axis, and the third axis which are perpendicular to each other, an outer edge of the first surface comprising a pair of long sides parallel to the second axis and a pair of short sides parallel to the first axis;a first axial element which is mounted on the first surface and detects an angular velocity about the first axis;a second axial element which is mounted on the first surface and detects the angular velocity about the second axis; anda third axial element which is mounted on the first surface and detects the angular velocity about the third axis; a piezoelectric body comprising a plurality of arms extending in a predetermined direction of extension in a plan perspective of the first surface and having the predetermined direction of extension as a long direction of the piezoelectric body,', 'an excitation electrode on a portion of the plurality of ...

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Номер записи: 46
27-01-2022 дата публикации

PRESENCE DETERMINATION DEVICE

Номер: US20220029086A1
Автор: SHIMIZU Atsuki
Принадлежит: Sumitomo Riko Company Limited

There is provided a presence determination device. The presence determination device determines whether or not a living body is present on a detection region, the presence determination device including: a flexible piezoelectric sensor sheet that is laid out in the detection region and outputs a detection signal corresponding to input vibration; a ballistocardiographic signal acquisition unit that extracts a ballistocardiographic signal corresponding to ballistocardioaction from the detection signal of the piezoelectric sensor sheet ; and an absence determination unit that executes an absence determination indicating that the living body is not present on the detection region, based on the ballistocardiographic signal. When a state where the ballistocardiographic signal is lower than an absence threshold value α lasts beyond an absence determination time, the absence determination unit executes the absence determination. 1. A presence determination device that determines whether or not a living body is present on a detection region , the presence determination device comprising:a flexible piezoelectric sensor sheet that is laid out in the detection region and outputs a detection signal corresponding to an input vibration;a ballistocardiographic signal acquisition unit that extracts a ballistocardiographic signal corresponding to a ballistocardioaction from the detection signal of the piezoelectric sensor sheet; andan absence determination unit that executes an absence determination based on the ballistocardiographic signal, where the absence determination indicates that the living body is not present on the detection region,wherein, when a state where the ballistocardiographic signal is lower than an absence threshold value lasts beyond an absence determination time, the absence determination unit executes the absence determination.2. The presence determination device according to claim 1 ,wherein the absence determination time is set within a range of 0.5 seconds ...

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Номер записи: 47
14-01-2021 дата публикации

PIEZOELECTRIC ACCELERATION SENSOR

Номер: US20210011051A1
Автор: Luo Chengxu, Nie Yongzhong
Принадлежит:

The present application relates to a piezoelectric acceleration sensor, comprising a base member that comprises a supporting part provided with a mounting hole extending along an axis thereof and a columnar connection part located on the connection part; a piezoelectric member, sleeved outside the connection part, and defining with the connection part an annular clearance therebetween; a mass block member, sleeved outside the piezoelectric member in a gapless manner; a pre-tightening member, being a wedge block with a thinner end near the supporting part and inserted into the annular clearance; a locking member that comprises an interconnected columnar part and stopping part; wherein, the columnar part is fitted with the mounting hole for locking the above members, and the stopping part is arranged to press the first end; the columnar part and the mounting hole are provided with fastening glue arranged between. 1. A piezoelectric acceleration sensor , comprising:a base member, comprising a supporting part provided with a mounting hole extending along an axis thereof and a columnar connection part located on the connection part;a piezoelectric member, sleeved outside the connection part, and defining with the connection part an annular clearance therebetween;a mass block member, sleeved outside the piezoelectric member in a gapless manner;a pre-tightening member, being a wedge block with a thinner end near the supporting part and inserted into the annular clearance;a locking member, comprising an interconnected columnar part and stopping part,wherein,the columnar part is fitted with the mounting hole for locking the above members, and the stopping part is arranged to press the first end, enabling the pre-tightening member to provide a radial pre-tightening force for fastening the piezoelectric member, the mass block member and the base member;the columnar part and the mounting hole are provided with fastening glue arranged between.2. The piezoelectric acceleration ...

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Номер записи: 48
15-01-2015 дата публикации

DEVICE AND METHOD FOR MEASURING PHYSICAL PARAMETERS USING SAW SENSORS

Номер: US20150013461A1
Автор: McCANN DONALD, POLLARD THOMAS
Принадлежит:

A SAW mode sensor for sensing parameters such as temperature, pressure, and strain. The sensor is made of a piezoelectric crystal cut at selected angles, with an attached electrode layer with a signal receiver and signal transmitter. The signal receiver initiates a wave in the substrate which propagates in the substrate and the speed of the wave and amplitude of the wave is interpreted as the parameter being sensed. 1. A wireless sensor for variable temperature environments , comprising:a piezoelectric crystal substrate of the LGX family of crystals with a SAW propagation path defined by selected Euler angles between an uncut LGX material and a cut surface of LGX material;a SAW sensor;a power source for powering a SAW input transducer, wherein said input transducer is configured for receiving an RF interrogating signal; andan antenna attached to said input transducer for receiving an RF interrogating signal from a signal processing system, with said sensor powered by said RF signal;with said RF signal being converted to a SAW electromechanical signal via the input transducer for propagating within the crystal substratewith said propagating signal being encoded to include information regarding states of sensor measurandswith said encoded signal being redetected by input transducer creating an encoded RF signalwith said encoded RF signal being retransmitted by said antenna to said signal processing system;with said crystal being cut to selected Euler angles φ, θ, and ψ defining a selected crystal orientation and propagating direction.2. The sensor of claim one wherein said SAW sensor further comprises:a periodic interdigital transducer of several wavelength periodicities in width, said interdigital transducer, affixed to said piezoelectric crystal as a thin layer.3. The sensor of claim one wherein said SAW sensor further comprises:an input transducer;a reflector located on both sides of said input transducer oriented to reflect SAW along the propagation direction.4. A ...

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Номер записи: 49
15-01-2015 дата публикации

THERMO-MECHANO-ELECTRICAL CONVERTER

Номер: US20150015112A1
Автор: Skotnicki Thomas
Принадлежит: STMICROELECTRONICS (CROLLES 2) SAS

A thermo-mechano-electric converter including a plurality of shape memory bistable elements embedded in a resilient material intimately associated with a piezoelectric material. 1. A thermo-mechano-electric converter comprising:a resilient material intimately associated with a piezoelectric material; anda plurality of bistable shape memory elements embedded in the resilient material intimately associated with the piezoelectric material.2. The converter of claim 1 , wherein the resilient material intimately associated with a piezoelectric material includes a layer or film of a resilient piezoelectric material and said elements are directly embedded in the layer or film of the resilient piezoelectric material.3. The converter of claim 2 , wherein the resilient piezoelectric material is a polymer.4. The converter of claim 3 , wherein the resilient piezoelectric material is polyvinylidene fluoride.5. The converter of claim 1 , wherein the shape memory elements are strips.6. The converter of claim 5 , wherein the resilient material intimately associated with a piezoelectric material includes a layer of a resilient material and the piezoelectric material coating the layer of the resilient material claim 5 , and the strips are arranged in the layer of the resilient material coated with the piezoelectric material.7. The converter of claim 1 , wherein the shape memory elements are bimetallic elements.8. The converter of claim 1 , wherein the shape memory elements are assembled in a blade or in a plate that includes a large number of embedded elements.9. The converter of claim 1 , further comprising first and second metal layers respectively positioned on opposite sides of the resilient material intimately associated with the piezoelectric material.10. The converter of claim 1 , wherein the resilient material intimately associated with the piezoelectric material includes:a layer of resilient material in which the shape memory elements are embedded;a first metal layer on the ...

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Номер записи: 50
14-01-2016 дата публикации

WIRELESS SWITCH

Номер: US20160013873A1
Автор: JEONG In Wha, KIM Hugh, PARK Jong Heum
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

There is provided a wireless switch including: an energy harvesting unit generating a first signal and a second signal when a first button is pressed and when the first button is released, respectively; a measuring unit measuring a period of time from a time at which the first signal is generated to a time at which the second signal is generated; and a wireless signal transmitting unit transmitting a control signal depending on the period of time measured by the measuring unit. 1. A wireless switch comprising:an energy harvesting unit generating a first signal and a second signal when a first button is pressed and when the first button is released, respectively;a measuring unit measuring a period of time from a time at which the first signal is generated to a time at which the second signal is generated; anda wireless signal transmitting unit transmitting a control signal depending on the period of time measured by the measuring unit.2. The wireless switch of claim 1 , wherein the energy harvesting unit includes a piezoelectric member generating the first and second signals depending on an operation of the first button.3. The wireless switch of claim 1 , wherein the energy harvesting unit includes a second button which is provided for generating a third signal.4. The wireless switch of claim 1 , wherein the energy harvesting unit includes:a support member;a piezoelectric member disposed on the support member; andthe first button and a second button applying pressure to the piezoelectric member.5. The wireless switch of claim 4 , wherein the piezoelectric member includes:a first piezoelectric member generating energy through the pressure applied by the first button; anda second piezoelectric member generating energy through the pressure applied by the second button.6. A wireless switch comprising:a first energy harvesting unit generating a first signal when a first button is pressed, and generating a second signal when the first button is released;a second energy ...

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Номер записи: 51
03-02-2022 дата публикации

MONOLITHICALLY INTEGRATED MULTI-SENSOR DEVICE ON A SEMICONDUCTOR SUBSTRATE AND METHOD THEREFOR

Номер: US20220033255A1
Автор: GOGOI BISHNU PRASANNA
Принадлежит: Versana Micro Inc.

A monolithically integrated multi-sensor (MIMS) is disclosed. A MIMs integrated circuit comprises a plurality of sensors. For example, the integrated circuit can comprise three or more sensors where each sensor measures a different parameter. The three or more sensors can share one or more layers to form each sensor structure. In one embodiment, the three or more sensors can comprise MEMs sensor structures. Examples of the sensors that can be formed on a MIMs integrated circuit are an inertial sensor, a pressure sensor, a tactile sensor, a humidity sensor, a temperature sensor, a microphone, a force sensor, a load sensor, a magnetic sensor, a flow sensor, a light sensor, an electric field sensor, an electrical impedance sensor, a galvanic skin response sensor, a chemical sensor, a gas sensor, a liquid sensor, a solids sensor, and a biological sensor. 1. A monolithically integrated multi-sensor (MIMS) having three or more sensors the MIMS comprising:a first MEMS sensor configured to measure a first parameter;a second MEMS sensor configured to measure a second parameter;a third sensor configured to measure a third parameter wherein the first, second, and third parameters are different, wherein the first, second, and third sensors are formed on or in a single semiconductor substrate using a monolithic semiconductor process, and wherein the a layer of the monolithic semiconductor process is common to the first, second, and third sensors.2. The MIMS of wherein the layer forms a static structural component in at least one of the first claim 1 , second claim 1 , or third sensors and wherein the layer forms a dynamic structural component in at least one of the first claim 1 , second claim 1 , or third sensors.3. The MIMS of wherein the layer is configured to form one or more pillars or one or more walls to support the static structural components for improved mechanical strength.4. The MIMS of wherein the dynamic structural component is a proof mass or a suspension spring.5 ...

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Номер записи: 52
21-01-2016 дата публикации

Mobile communication terminal

Номер: US20160020713A1
Автор: Feng Bai, Jiaheng Wang, Jiuxia YANG
Принадлежит: Beijing BOE Optoelectronics Technology Co Ltd, BOE Technology Group Co Ltd

A mobile communication terminal comprises an acoustic-electro conversion unit configured to convert sound into electric energy, which includes a conversion device for converting vibration into electric energy; and an energy storage unit electrically connected to the conversion device and configured to store electric energy generated by the conversion device. The mobile communication terminal can solve the problem that the mobile communication terminal has large power consumption and short continuous service time, and can make full use of energy, has a long continuous service time and is convenient to use.

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Номер записи: 53
22-01-2015 дата публикации

THERMAL ENERGY HARVESTING OPTIMISATION WITH BISTABLE ELEMENTS AND COLLABORATIVE BEHAVIOR

Номер: US20150022054A1
Автор: Coronel Philippe, Gaillard Frederic, MONFRAY Stéphane, Savelli Guillaume, Skotnicki Thomas
Принадлежит:

System for converting thermal energy into electrical energy (S) intended to be arranged between a hot source (SC) and a cold source (SF), comprising means for converting thermal energy into mechanical energy () and a piezoelectric material, with the means for converting thermal energy into mechanical energy () comprising groups (G G) of at least three bimetallic strips () linked mechanically together by their longitudinal ends and suspended above a substrate (), each bimetallic strip () comprising two stable states wherein it has in each of the states a curvature, with two directly adjacent bimetallic strips () having for a given temperature opposite curvatures, with the switching from one stable state of the bimetallic strips () to the other causing the deformation of a piezoelectric material. 120-. (canceled)21. A conversion system for converting thermal energy into electrical energy to be arranged between a hot source and a cold source , comprising:a substrate;means for converting thermal energy into mechanical energy; andmeans for converting mechanical energy into electrical energy;the means for converting thermal energy into mechanical energy having at least one group of at least two bimetallic strips mechanically connected to one another and at least partially suspended above the substrate, each bimetallic strip having two stable states in which it has in each stable state a curvature, the bimetallic strips being directly adjacent having opposite curvatures, the passage from one stable state to the other being adapted to cause excitation of the means for converting mechanical energy into electrical energy for electricity generation.22. The conversion system according to claim 21 , wherein the bimetallic strips are mechanically interconnected by their longitudinal ends so as to form a band.23. The conversion system according to claim 21 , wherein the bimetallic strips are mechanically interconnected by their lateral ends.24. The conversion system according to ...

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Номер записи: 54
10-02-2022 дата публикации

Monolithically integrated multi-sensor device on a semiconductor substrate and method therefor

Номер: US20220041434A1
Автор: Bishnu Prasanna Gogoi
Принадлежит: Versana Micro Inc

A monolithically integrated multi-sensor (MIMS) is disclosed. A MIMs integrated circuit comprises a plurality of sensors. For example, the integrated circuit can comprise three or more sensors where each sensor measures a different parameter. The three or more sensors can share one or more layers to form each sensor structure. In one embodiment, the three or more sensors can comprise MEMs sensor structures. Examples of the sensors that can be formed on a MIMs integrated circuit are an inertial sensor, a pressure sensor, a tactile sensor, a humidity sensor, a temperature sensor, a microphone, a force sensor, a load sensor, a magnetic sensor, a flow sensor, a light sensor, an electric field sensor, an electrical impedance sensor, a galvanic skin response sensor, a chemical sensor, a gas sensor, a liquid sensor, a solids sensor, and a biological sensor.

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Номер записи: 55
10-02-2022 дата публикации

Substance Detection Element

Номер: US20220042949A1
Автор: KUROGI Shogo, Ogata Kenji
Принадлежит: I-Pex Inc.

A through hole () is provided on a supporting substrate (). A plate-shaped beam () extends from an edge of the through hole () to a facing edge in such a way as to cover part of the through hole () and is provided with a piezoelectric element. A drive electrode () vibrates the beam () by applying voltage to the piezoelectric element. Detection electrodes (A, B) detect information about the vibration frequency of the beam (). Substance adsorption films (A, B) change the vibration frequency of the beam () by adhesion of a substance. The substance adsorption films (A, B) and the detection electrodes (A, B) are respectively provided at the same position on the front and the back of the beam (). 1. A substance detection element comprising:a supporting substrate;a plate-shaped beam provided with a piezoelectric element, at least one end of the beam being fixed to the supporting substrate;a detection electrode detecting information about a vibration frequency of the beam; anda substance adsorption film changing a vibration frequency of the beam by adhesion of a substance,wherein the substance adsorption film and the detection electrode are respectively provided at a same position on a front and a back of the beam.2. The substance detection element according to claim 1 , whereinthe supporting substrate is provided with a through hole, andthe beam extends from an edge of the through hole toward a facing edge in such a way as to cover part of the through hole.3. The substance detection element according to claim 2 , whereinthe beam is fixed to an edge of the through hole at at least two spots,a plurality of pairs of the substance adsorption film and the detection electrode respectively provided at a same position on a front and a back of the beam is provided on the beam, anda substance absorbed by the substance absorption file is different for the each pair.4. The substance detection element according to claim 3 , whereinthe beam is fixed to an edge of the through hole at ...

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Номер записи: 56
24-04-2014 дата публикации

Textile-based stretchable energy generator

Номер: US20140111063A1
Автор: Burak GUZELTURK, Ji-Hyun Bae, Jong Jin Park, Sang-Hun Jeon
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A textile-based stretchable energy generator is provided. The energy generator includes: flexible and stretchable first and second electrode substrates; and an energy generation layer, which is provided between the first and second electrode substrates and includes a dielectric elastomer for generating electrical energy from a transformation thereof.

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Номер записи: 57
25-01-2018 дата публикации

PIEZOELECTRIC DEVICE AND ELECTRONIC DEVICE

Номер: US20180026175A1
Автор: Endo Jun, KIHARA TAKASHI, YAMAGUCHI Yoshihiro
Принадлежит:

An electronic device that includes a housing and a piezoelectric sensor. The piezoelectric sensor is disposed in contact with an inner wall surface of the housing while in a bent state. The piezoelectric sensor includes a piezoelectric film, a coverlay, a first electrode, a second electrode, a third electrode, and a substrate having flexibility. The first electrode is disposed on a surface of the substrate. The first electrode includes a wide part and a narrow part. The coverlay covers a boundary between the wide part and the narrow part. The piezoelectric film covers a boundary between a part of the first electrode which is covered with the coverlay and a part of the first electrode which is not covered with the coverlay. 1. A piezoelectric device comprising:a piezoelectric film including a first principal surface and a second principal surface;a substrate having flexibility;a first electrode on the substrate, the first electrode including a first wide part and a first narrow part connected with the first wide part;a covering member covering a first boundary between the first wide part and the first narrow part of the first electrode;a piezoelectric film including a first principal surface and a second principal surface, the first principal surface connected with the first wide part of the first electrode, the piezoelectric film covering a second boundary between a first part of the first electrode which is covered with the covering member and a second part of the first electrode which is not covered with the covering member; anda second electrode connected with the second principal surface of the piezoelectric film.2. The piezoelectric device according to claim 1 , wherein the piezoelectric film also covers the first boundary.3. The piezoelectric device according to claim 2 , further comprising a third electrode on the substrate claim 2 , the third electrode including a second wide part connected with the second electrode claim 2 , and a second narrow part ...

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Номер записи: 58
23-01-2020 дата публикации

DIFFERENTIAL PRESSURE SENSOR CHIP, DIFFERENTIAL PRESSURE TRANSMITTER, AND METHOD FOR MANUFACTURING DIFFERENTIAL PRESSURE SENSOR CHIP

Номер: US20200025638A1
Автор: ISHIKURA Yoshiyuki, TOKUDA Tomohisa, TSUSHIMA Ayumi
Принадлежит: AZBIL CORPORATION

A differential pressure sensor chip () includes: first and second pressure introduction holes (_ and _); first and second diaphragms (_ and _) formed to cover the first and second pressure introduction holes; first and second depressions (_ and _) each in a form of a depression respectively provided to face the first and second pressure introduction holes with the first and second diaphragms interposed therebetween; a first communication channel () that makes a chamber between the first depression and the first diaphragm and a chamber between the second depression and the second diaphragm communicate to each other; a pressure-transmission-material introduction passage () an end of which is an opening and another end of which is joined to the first communication channel; a pressure transmission material () that fills the first communication channel, the two chambers, and the pressure-transmission-material introduction passage; and a sealing member () formed of a metal formed to seal a depression on a metal layer () formed on a surface of the opening of the pressure-transmission-material introduction passage. 1. A differential pressure sensor chip comprising:a first base portion including a first main surface, a second main surface opposite to the first main surface, and a first pressure introduction hole and a second pressure introduction hole that are each open on the first main surface and the second main surface;a semiconductor film formed on the second main surface of the first base portion; anda second base portion including a third main surface and a fourth main surface opposite to the third main surface, the third main surface being bonded to the semiconductor film, a first diaphragm configured to cover an end of the first pressure introduction hole,', 'a second diaphragm configured to cover an end of the second pressure introduction hole,', 'a first strain gauge provided for the first diaphragm and configured to detect a pressure of a fluid that is a ...

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Номер записи: 59
02-02-2017 дата публикации

ULTRASONIC DEVICE, PIEZOELECTRIC DEVICE, ULTRASONIC MEASUREMENT APPARATUS, AND ELECTRONIC INSTRUMENT

Номер: US20170028440A1
Автор: KIYOSE Kanechika
Принадлежит:

An ultrasonic device includes an element substrate provided with an ultrasonic transducer array in which a plurality of ultrasonic transducers are arranged in an array, a sealing plate (array counter plate) that is bonded to the element substrate and covers at least the ultrasonic transducer array, and a support substrate that supports at least one of the element substrate and the sealing plate, and the support substrate has a through hole (insertion section) into which at least part of the sealing plate is inserted. 1. An ultrasonic device comprising:an element substrate provided with an ultrasonic transducer array in which a plurality of ultrasonic transducers are arranged in an array;an array counter plate that is bonded to the element substrate and covers at least the ultrasonic transducer array; anda support substrate that supports at least one of the element substrate and the array counter plate,wherein the support substrate has an insertion section into which at least part of the array counter plate is inserted.2. The ultrasonic device according to claim 1 , further comprisinga fixing member that fixes the array counter plate to the support substrate.3. The ultrasonic device according to claim 1 ,wherein the insertion section is a first groove section provided in a thickness direction of the support substrate, andthe first groove section has a first bottom surface that comes into contact with a surface of the array counter plate, the surface facing a side opposite the element substrate.4. The ultrasonic device according to claim 1 ,wherein the insertion section is a through hole that passes through the support substrate in a thickness direction.5. The ultrasonic device according to claim 4 , further comprisinga reinforcing plate that covers the through hole and is bonded to the support substrate,wherein a surface of the reinforcing plate, the surface facing the through hole, comes into contact with a surface of the array counter plate, the surface facing a ...

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Номер записи: 60
28-01-2021 дата публикации

SMART WHEEL ENERGY HARVESTER

Номер: US20210028725A1
Автор: GRISWOLD Ryan, Sze John, Vivek Vibhu
Принадлежит:

Systems and methods for an energy harvester proximate to a rotatable component of a vehicle's wheel are disclosed. In some embodiments, an energy harvester system includes: a substrate having a first surface configured to contact and interface with a surface of a wheel, and a second surface opposite the first surface; a piezoelectric component configured to produce energy in response to mechanical strain imparted on the piezoelectric component, wherein the piezoelectric component is configured to deform while experiencing the mechanical strain so as to contact at least a portion of the second surface. 1. An energy harvester system , comprising: a first surface configured to contact and interface with a surface of a wheel, and', 'a second surface opposite the first surface;, 'a substrate comprisinga piezoelectric component configured to produce energy in response to mechanical strain imparted on the piezoelectric component, wherein a portion of the piezoelectric component is attached to a first portion of the second surface, the second surface comprising a second portion that is configured to contact the piezoelectric component when mechanical strain is imparted on the piezoelectric component but does not contact the piezoelectric component when no mechanical strain is imparted on the piezoelectric component, and wherein the piezoelectric component is configured to deform while experiencing the mechanical strain so as to contact the second portion of the second surface; andan interconnect conductively coupled to the piezoelectric component, the interconnect being configured to conduct electrical energy from the piezoelectric component to a device coupled to the wheel.2. The system of claim 1 , wherein the piezoelectric component comprises multiple layers.3. The system of claim 2 , wherein the piezoelectric component comprises: a tensile load backing layer claim 2 , a piezoelectric material layer claim 2 , and an electrode layer.4. The system of claim 3 , wherein the ...

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Номер записи: 61
02-02-2017 дата публикации

POWER GENERATION SYSTEM

Номер: US20170030380A1
Автор: Hayamizu Kohei
Принадлежит: SOUNDPOWER CORPORATION

A power generation system to improve the degree of freedom of installation is described herein. A power generation system comprises: first fluid chambers that contain a fluid; a second fluid chamber that contains the fluid; a communication flow channel that communicates the first fluid chambers and the second fluid chamber with each other; first pistons that are disposed such that the fluid in the first fluid chambers can be pressed; a second piston that is disposed such that the fluid in the second fluid chamber can be pressed; and power generation modules that convert pressing forces of the corresponding first pistons into electricity using piezoelectric elements. The power generation elements of the power generation modules generate power when the second piston is pressed, and the pressing force is transmitted to the first pistons via the fluid, and the piezoelectric elements are indirectly pressed due to the force thus transmitted. 1. A power generation system comprising:a fluid container that contains a fluid;a first piston disposed in the fluid container to press the fluid in the fluid container;a second piston disposed in the fluid container to press the fluid in the fluid container; anda power generation module comprising a power generation element; whereinwhen the second piston is pressed by a pressing force, the pressing force is transmitted to the first piston via the fluid in the fluid container, and the first piston presses the power generation element directly or indirectly due to the force thus transmitted to generate power.2. The power generation system according to claim 1 , wherein the fluid container comprises:a first fluid chamber;a second fluid chamber; anda communication flow channel fluidly communicating the first fluid chamber and the second fluid chamber, whereinthe first piston is disposed to press fluid in the first fluid chamber, andthe second piston is disposed to press fluid in the second fluid chamber.3. The power generation system ...

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Номер записи: 62
01-02-2018 дата публикации

METHOD AND APPARATUS FOR SIMULATING THE GENERATED CHARGE PROFILE OF PIEZOELECTRIC ELEMENTS DUE TO ARBITRARY SHOCK LOADING

Номер: US20180032656A1
Автор: Feng Ziyuan
Принадлежит: OMNITEK PARTNERS LLC

A piezoelectric open-circuit output voltage profile simulator including a capacitor; at least first, second and third switches; and a controller for controlling the first, second and third switches. 1. (canceled)2. A piezoelectric open-circuit output voltage profile simulator comprising:a power source configured to provide at least a voltage level equal to a piezoelectric open-circuit output voltage;a first capacitor;at least first, second and third switches; anda controller for controlling the first, second and third switches,wherein the first capacitor is coupled to the power source through the first switch to control a charge profile of the simulator, andwherein the second and third switch are coupled to the first capacitor to control a discharge profile of the simulator.3. The simulator of claim 2 , comprising a second capacitor couplable in parallel to the first capacitor under control of the second switch.4. The simulator of claim 3 , comprising:a first resistor coupled in series between the first and second switches; anda second resistor coupled in series between the second and third switches.5. The simulator of claim 4 , wherein the third switch controls coupling of the second resistor in parallel with the second capacitor.6. The simulator of claim 5 , wherein the power source claim 5 , the first and second capacitors claim 5 , the first and second resistors claim 5 , and the least first claim 5 , second and third switches comprise a first open-circuit voltage profile generator claim 5 , the simulator comprising at least one second open-circuit voltage profile generator couplable in parallel with the first open-circuit voltage profile generator under control of the controller.7. The simulator of claim 4 , wherein the first resistor comprises a plurality of first resistors selectively couplable in parallel at least in pairs under control of the controller.8. The simulator of claim 4 , wherein the second resistor comprises a plurality of second resistors ...

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Номер записи: 63
02-02-2017 дата публикации

DEVICE FOR HARVESTING ENERGY FROM A FLUIDIC FLOW INCLUDING A THIN FILM OF PIEZOELECTRIC MATERIAL

Номер: US20170033713A1
Автор: De Vittorio Massimo, GUIDO Francesco, Petroni Simona, RIZZI Francesco
Принадлежит:

A transmission belt is described which comprises a body made of a first elastomeric material, a plurality of teeth and a plurality of longitudinal cords buried in the body of the belt and a back. The belt has a working surface on said teeth and the working surface is at least partially covered by a covering made of a plastic and/or metal material. Defining the area comprised between the plane defined by the neutral axis of the cords, the working surface and the median transverse planes of two adjacent teeth as the unitary longitudinal section, the covering preferably occupies at least 25% of the unitary longitudinal section. 1. A device for harvesting energy from a fluidic flow , comprising a flexible structure including:a base layer;a first conductive layer, made of a first conductive material and arranged on top of the base layer; anda first piezoelectric layer, made of a first piezoelectric material and arranged on top of the first conductive layer; andwherein the base layer, the first conductive layer, and the first piezoelectric layer form a crystalline structure including a plurality of pseudomorphic portions.2. The device according to claim 1 , wherein each pseudomorphic portion has a columnar shape and includes a first interface and a second interface.3. The device according to claim 1 , wherein the first piezoelectric layer has a thickness comprised between 300 nm and 1.4 μm.4. The device according to claim 1 , wherein the first piezoelectric layer forms a first main surface claim 1 , which in top plan view has a shape without vertices.5. The device according to claim 1 , wherein the base layer has a thickness comprised between 15 nm and 500 nm.6. The device according to claim 1 , further comprising: a second conductive layer claim 1 , arranged on top of the first piezoelectric layer claim 1 , a second piezoelectric layer claim 1 , arranged on top of the second conductive layer claim 1 , and a third conductive layer claim 1 , arranged on top of the second ...

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Номер записи: 64
12-02-2015 дата публикации

System and method for generating electricity by an inflated moving wheel

Номер: US20150042211A1
Автор: Hongjun Pan
Принадлежит: Individual

A system and method for generating electricity by an inflated moving wheel for transportation devices is disclosed. In accordance with embodiments of the present disclosure, an electricity generating wheel may include an flexible inflated tire, a wheel rim, a central shaft, an electricity generator is installed inside of the inflated tire; the electricity generator may include an outer ring and an inner ring and multiple springs; the inner ring and outer ring may comprise multiple piezoelectricity generators (or other types of electricity generators), the springs connect the outer ring and the inner ring electricity generators and keep the outer ring in contact with the inner surface of the inflated tire. The weight and load of the transportation devices compresses the inflated tire, imposes compression force on the springs, the springs pass such compression force on the electricity generator, the electricity is generated, significant amount of energy is recovered and reused.

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Номер записи: 65
06-02-2020 дата публикации

SYSTEMS AND METHODS FOR MEASURING AND INDICATING BRUSH HEAD LIFE

Номер: US20200037747A1
Автор: Callaway Robert Paul, Khormaei Iranpour
Принадлежит: L'OREAL

Systems and methods for measuring and indicating brush head life are disclosed. In one embodiment, the system includes a brush head that moves with respect to a brush handle; an energy harvester that generates electrical signals based on movements of the brush head; a controller in electrical communication with the energy harvester; and an indicator in electrical communication with the controller. The indicator is energized based on a signal from the controller. 1. A face brush , comprising:a brush head configured to move with respect to a brush handle;an energy harvester configured to generate electrical signals based on movements of the brush head;a controller in electrical communication with the energy harvester; andan indicator in electrical communication with the controller,wherein the indicator is energized based on a signal from the controller.2. The face brush of claim 1 , wherein the movements of the brush head are oscillatory or rotational.3. The face brush of claim 1 , wherein the energy harvester is a piezo-element configured to oscillate when the brush head moves.4. The face brush of claim 3 , wherein the energy harvester is carried by an adapter located between the brush head and the brush handle.5. The face brush of claim 4 , wherein the adapter is shaped as a disc claim 4 , and wherein the energy harvester is configured in a cavity of the adapter.6. The face brush of claim 1 , wherein the energy harvester is an electric generator.7. The face brush of claim 1 , wherein the indicator is a light emitting diode (LED).8. The face brush of claim 7 , wherein the LED emits light through a lumen in the brush head.9. The face brush of claim 7 , wherein the LED emits light through light-channeling bristles of the brush head.10. The face brush of claim 1 , wherein the indicator is a source of sound claim 1 , a haptic element claim 1 , or a wireless transmitter.11. The face brush of claim 1 , further comprising a capacitor electrically connected with the ...

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Номер записи: 66
11-02-2016 дата публикации

Vibration power generator, vibration monitoring device, and vibration monitoring system

Номер: US20160043663A1
Автор: Hajime Kurikuma, Hidenori Katsumura, Hiroshi Kagata, Koichi Hasegawa, Masaya Tamura
Принадлежит: Panasonic Intellectual Property Management Co Ltd, Sumitomo Riko Co Ltd

A vibration power generator includes a vibration system attached to a vibrating member. The vibration system includes a first vibration subsystem, and a second vibration subsystem attached to the first vibration subsystem. The first vibration subsystem includes an elastic member attached to the vibrating member, and a first mass member attached to the elastic member. The second vibration subsystem includes a plate spring integral with a piezoelectric element, and a second mass member attached to the plate spring. The first vibration subsystem has a resonant frequency that is substantially equal to a resonant frequency of the second vibration subsystem.

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Номер записи: 67
09-02-2017 дата публикации

Hybrid Thermal Battery Reserve Power Source

Номер: US20170040619A1
Автор: Rastegar Jahangir S.
Принадлежит: OMNITEK PARTNERS LLC

A method for producing power from a thermal battery having a piezoelectric generator. The method including: initiating the thermal battery when the thermal battery experiences a predetermined acceleration event; generating power from the piezoelectric generator when the thermal battery experiences the predetermined acceleration event for at least an initial period after the predetermined acceleration event; and generating power from the thermal battery after the initial period. 1. A thermal battery comprising:a casing;a battery cell disposed in the casing;a pair of electrical leads extending from the casing and electrically connected to the battery cell;a heat generating pyrotechnic material, separate from the battery cell, at least partially surrounding the battery cell;an inertial starter disposed in the casing for at least activating the battery cell upon the casing experiencing a predetermined acceleration event; andinsulation disposed between the heat generating pyrotechnic material and the casing.2. The thermal battery of claim 1 , wherein the heat generating pyrotechnic material is selected from a group consisting of Zr/BaCRO claim 1 , Fe/KClOand Al/FeO.3. The thermal battery of claim 1 , further comprising a piezoelectric generator having an electrical output upon experiencing the predetermined acceleration event claim 1 , the electrical output of the piezoelectric generator being electrically connected to an electrical output of the battery cell.4. The thermal battery of claim 1 , wherein the piezoelectric generator is disposed in a portion of the casing.5. A thermal battery comprising:a casing;a battery cell disposed in the casing;a pair of electrical leads extending from the casing and electrically connected to the battery cell;an inertial starter disposed in the casing for activating the battery cell upon the casing experiencing the predetermined acceleration event;insulation disposed between the heat generating pyrotechnic material and the casing; anda ...

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Номер записи: 68
08-02-2018 дата публикации

PIEZOELECTRIC MATERIAL MEMBER CAPABLE OF GENERATING DIFFERENT FREQUENCIES AND TRANSDUCER THEREWITH

Номер: US20180040801A1
Автор: Chao Ching-Kong, HSU Ching-Min, Huang Yu-Hsi, Wu Li-Wen
Принадлежит:

A piezoelectric material member includes a piezoelectric body, an upper electrode and a lower electrode. The upper electrode and the lower electrode are disposed on different sides of the piezoelectric body. The upper electrode has a first upper electrode section and a second upper electrode section separated from the first upper electrode section. The lower electrode has a first lower electrode section and a second lower electrode section separated from the first lower electrode section. The first lower electrode section is coupled to the first upper electrode section, so that the piezoelectric body generates a first frequency via the first lower electrode section and the first upper electrode section. The second lower electrode section is coupled to the second upper electrode section, so that the piezoelectric body generates a second frequency via the second lower electrode section and the second upper electrode section. 1. A piezoelectric material member capable of generating different vibration frequencies , comprising:a piezoelectric body having an upper side and a lower side opposite to the upper side;an upper electrode disposed on the upper side, the upper electrode having a first upper electrode section and a second upper electrode section separated from the first upper electrode section; anda lower electrode disposed on the lower side, the lower electrode having a first lower electrode section and a second lower electrode section separated from the first lower electrode section, the first lower electrode section being coupled to the first upper electrode section, so that the piezoelectric body generates a first frequency via the first lower electrode section and the first upper electrode section, the second lower electrode section being coupled to the second upper electrode section, so that the piezoelectric body generates a second frequency via the second lower electrode section and the second upper electrode section.2. The piezoelectric material member of ...

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Номер записи: 69
09-02-2017 дата публикации

ELECTRICAL ENERGY GENERATION WITHIN A VEHICLE TIRE

Номер: US20170040911A1
Автор: MUDDIMAN MATTHEW W., TATARCHUK JOHN J.
Принадлежит:

An apparatus for installation within a tire for a vehicle includes a flexible arm and a power generating element coupled to the flexible arm for generating electrical energy. One end of the flexible arm is coupled to a rim of the tire. The opposing end of the flexible arm is configured to be in contact with the inside tread surface of the tire. The flexible arm is capable of deformation in response to a variability of distance between the rim and the inside tread surface during rolling movement of the tire, and the power generating element generates the electrical energy in response to deformation of the flexible arm. The apparatus may be combined with a tire pressure sensor module as a system so as to provide electrical energy for powering the tire pressure sensor module. 1. An apparatus for installation within a tire for a vehicle comprising:a flexible arm having first and second ends, wherein said first end is configured to be coupled to one of a rim upon which said tire is mounted and an inside tread surface of said tire, and said second end is configured to be in contact with the other of said rim and said inside tread surface; anda power generating element coupled to said flexible arm for generating electrical energy, wherein said flexible arm deforms in response to a variability of distance between said rim and said inside tread surface during rolling movement of said tire and said power generating element generates said electrical energy in response to deformation of said flexible arm.2. The apparatus of wherein said flexible arm is mechanically uncoupled from said inside tread surface of said tire.3. The apparatus of wherein said flexible arm comprises a material that is elastically deformable.4. The apparatus of wherein said flexible arm exhibits a length that is at least equivalent to the greatest magnitude of said distance between said rim and said inside tread surface.5. The apparatus of wherein said flexible arm includes a generally flat surface having ...

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Номер записи: 70
15-02-2018 дата публикации

Encapsulated microelectromechanical structure

Номер: US20180044176A1
Автор: Aaron Partridge, Markus Lutz, Pavan Gupta
Принадлежит: Sitime Corp

A semiconductor layer having an opening and a MEMS resonator formed in the opening is disposed between first and second substrates to encapsulate the MEMS resonator. An electrical contact that extends from the opening to an exterior of the MEMS device is formed at least in part within the semiconductor layer and at least in part within the first substrate.

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Номер записи: 71
07-02-2019 дата публикации

CANTILEVER PIEZOELECTRIC TRANSDUCER

Номер: US20190044458A1
Автор: Frangi Attilio, Procopio Francesco
Принадлежит:

A piezoelectric transducer includes an anchorage and a beam of semiconductor material extending in cantilever fashion from the anchorage in a main direction parallel to a first axis and having a face parallel to a first plane defined by the first axis and by a second axis perpendicular to the first axis. A piezoelectric layer is on the face of the beam. A cross-section of the beam is perpendicular to the first axis and is asymmetrical and shaped so the beam deformations out of the first plane in response to forces applied to the anchorage and oriented parallel to the first axis. 1. An energy-harvesting system , comprising: an anchorage;', 'a cantilever beam of semiconductor material extending from the anchorage in a main direction parallel to a first axis and having a face parallel to a first plane defined by the first axis and by a second axis perpendicular to the first axis;', 'a cross-section of the cantilever beam perpendicular to the first axis, the cross-section being asymmetrical relative to centroidal planes defined by the first axis, second axis, and a third axis perpendicular to the first and second axes, the cross-section configured to cause the beam to deform out of the first plane in response to forces applied to the anchorage and in response to forces parallel to the second axis; and', 'a piezoelectric layer on the face of the cantilever beam;, 'a piezoelectric converter configured to harvest environmental energy and to convert the environmental energy harvested into an electrical harvesting signal, the piezoelectric converter includinga storage element configured to store electrical energy provided by the electrical harvesting signal, the stored electrical energy providing a storage voltage;a harvesting interface coupled to the piezoelectric converter and configured to supply electrical energy to the storage element as a function of the electrical harvesting signal, the harvesting interface including a supply input; anda selective-connection device ...

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Номер записи: 72
16-02-2017 дата публикации

ENERGY HARVESTING FROM CONSTRAINED BUCKLING OF PIEZOELECTRIC BEAMS

Номер: US20170047865A1
Автор: Ansari Mohammad Hossein, INMAN Daniel J., Karami Mohammad Amin
Принадлежит:

An energy harvesting system for harvesting energy in response to application of an external force. The energy harvesting system comprises a beam member having a central member and at least one piezoelectric layer joined to the central member for deflection therewith. The beam member includes opposing first and second ends and is elastically deformable in response to application of the external force. A first mount couples the first end of the beam member and is generally stationary. A second mount couples the second end of the beam member. The second mount and the second end of the beam member are generally moveable in response to application of the external force between a first position and a second position, thereby outputting energy from the at least one piezoelectric layer in response to the movement from the first position to the second position. 1. An energy harvesting system for harvesting energy in response to application of an external force , said energy harvesting system comprising:a first beam member having a central member and at least one piezoelectric layer joined to the central member for deflection therewith, said first beam member having opposing first and second ends, said first beam member being elastically deformable in response to application of the external force;a first mount coupling said first end of said first beam member, said first mount being generally stationary;a second mount coupling said second end of said first beam member, said second mount and said second end of said first beam member being generally moveable in response to application of the external force between a first position and a second position, thereby outputting energy from said at least one piezoelectric layer in response to said movement from said first position to said second position; anda stop member physically opposing movement of said second mount and said second end of said first beam member in said second position.2. The energy harvesting system according to ...

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Номер записи: 73
16-02-2017 дата публикации

Power generator

Номер: US20170047866A1
Автор: Kenichi Furukawa, Takayuki Numakunai
Принадлежит: Mitsumi Electric Co Ltd

A power generator 1 includes at least two magnetostrictive elements 10 each including a magnetostrictive rod through which lines of magnetic force pass in an axial direction thereof and a coil 3 wound around the magnetostrictive rod 2 ; and a beam member 83 for connecting one end portions of the magnetostrictive elements 10 with each other and the other end portions of the magnetostrictive elements 10 with each other. Further, the power generator 1 includes a permanent magnet 6 for generating the lines of magnetic force passing through the magnetostrictive rods 2 . The permanent magnet 6 is provided so that a magnetization of the permanent magnet 6 differs from an arrangement direction in which the magnetostrictive elements 10 are arranged side by side.

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Номер записи: 74
13-02-2020 дата публикации

Modular piezoelectric sensor array with co-integrated electronics and beamforming channels

Номер: US20200046320A1
Автор: Douglas N. Stephens, Katherine W. Ferrara, Qifa Zhou, Robert G. Wodnicki, Thomas Matthew CUMMINS
Принадлежит: UNIVERSITY OF CALIFORNIA, University of Southern California USC

A modular array includes modular array includes one or more array modules. Each array module includes one or more transducer arrays, where each of the one or more transducer arrays includes a plurality of piezoelectric elements; a conducting interposer arranged and configured to provide acoustic absorbing backing for the one or more transducer arrays; and one or more Application Specific Integrated Circuits (ASICs). The conducting interposer and the one or more ASICs are in electrical contact with each other at a first direct electrical interface. Additionally, the conducting interposer and the one or more transducer arrays are in electrical contact with each other at a second direct electrical interface.

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Номер записи: 75
03-03-2022 дата публикации

STRAIN GAUGE AND STRAIN MEASUREMENT ASSEMBLY

Номер: US20220065715A1
Автор: Hoffman James, Wagner David Eric, Young-Deok Kim
Принадлежит:

A strain gauge includes a resistor formed of a doped silicon material, a conductive shield, and an isolation element disposed between the resistor and the conductive shield. The isolation element electrically isolates the resistor from the conductive shield. 1. A strain gauge , comprising:a resistor formed of a doped silicon material;a conductive shield; andan isolation element disposed between the resistor and the conductive shield and electrically isolating the resistor from the conductive shield.2. The strain gauge of claim 1 , wherein the resistor and the isolation element are formed within a single silicon substrate.3. The strain gauge of claim 2 , wherein the resistor is a p-type doped section of the silicon substrate.4. The strain gauge of claim 3 , wherein the isolation element is an n-type doped section of the silicon substrate forming a p-n junction with the p-type doped section.5. The strain gauge of claim 4 , wherein the conductive shield is formed within the single silicon substrate.6. The strain gauge of claim 5 , wherein the conductive shield is an n+-type highly doped section of the silicon substrate.7. The strain gauge of claim 4 , wherein the conductive shield is a metal layer on which the silicon substrate is disposed.8. The strain gauge of claim 4 , wherein the isolation element surrounds a lower side and a plurality of lateral sides of the resistor.9. The strain gauge of claim 8 , further comprising a guard ring formed within the single silicon substrate.10. The strain gauge of claim 9 , wherein the guard ring is an n+-type highly doped section of the silicon substrate section disposed at a same height as the resistor along a height direction and spaced apart from the lateral sides of the resistor in a lateral direction perpendicular to the height direction.11. The strain gauge of claim 1 , wherein the resistor is a p-type doped silicon layer and the isolation element is an oxide on which the p-type doped silicon layer is disposed.12. The strain ...

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Номер записи: 76
03-03-2022 дата публикации

SENSORS BASED ON MULTIPLE STRAIN GAUGES, DESIGN AND METHODS OF MANUFACTURE THEREOF

Номер: US20220065716A1
Автор: MOLINAZZI Nicola, SHMILOVICH Tsvi
Принадлежит:

A sensor device, and methods of manufacture thereof, are disclosed. The sensor device comprising a deformable substrate and a plurality of sensing elements formed on the deformable substrate, each of the plurality of sensing elements comprises at least one of a plurality of strain sensitive lines radially extending with respect to a center of the deformable substrate and a plurality of arched-shaped strain sensitive lines extending with respect to the center of the deformable substrate. The plurality of sensing elements are arranged on the deformable substrate such that strain components measured due to extension of strain sensitive lines of at least one of the sensing elements are of opposite strain direction with respect to strain components measured due to compression of strain sensitive lines of at least one other of the sensing elements, thereby maximizing performance and measurement range.

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Номер записи: 77
23-02-2017 дата публикации

VIBRATION ANGULAR VELOCITY SENSOR

Номер: US20170052027A1
Автор: Jomori Tomoya, Sakai Minekazu
Принадлежит:

A vibration angular velocity sensor includes a fixed portion, a movable portion, a beam portion, and an anti-vibration spring structure. The movable portion has driving-detection weights. The beam portion has detection beams, support members, and driving beams, and has a frame structure formed of the driving beams, the support members, and the driving-detection weights. The anti-vibration spring structure is disposed between the detection beams and the fixed portion and is deformable along a first axis and a second axis. The vibration angular velocity sensor causes the driving-detection weights disposed on both sides of the fixed portion to undergo driving vibrations in directions opposite to each other along the first axis about the fixed portion and detects an angular velocity based on a fact that the driving-detection weights vibrate also along the second axis upon application of the angular velocity. 1. A vibration angular velocity sensor comprising:a fixed portion fixed to a substrate;a movable portion having driving-detection weights disposed on both sides of a first axis along one direction on a plane of the substrate with the fixed portion as a center to serve as both a driving weight and a detection weight;a beam portion having detection beams supported to the fixed portion and extended on both sides of a second axis perpendicular to the first axis on the plane of the substrate with the fixed portion as a center, support members disposed to tip ends of the detection beams on an opposite side from the fixed portion so as to cross the detection beams, and driving beams supported to the support members and disposed on both sides of the first axis with the detection beams in between to support the driving-detection weights at both ends, and having a frame structure formed of the driving beams, the support members, and the driving-detection weights; andan anti-vibration spring structure disposed between the detection beams and the fixed portion and being ...

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Номер записи: 78
03-03-2022 дата публикации

PIEZORESISTIVE MICROPHONE WITH ARC-SHAPED SPRINGS

Номер: US20220070590A1
Автор: CHANG Bobaro, CHO Dong Il, JIN Ailian, KIM Tae Yup, PARK Junghyun
Принадлежит:

The present disclosure relates to a design method for a piezoresistive-sensing-type microphone with an arc-shaped spring structure for ultra-miniaturization and high sensitivity. With the addition of the spring structure to the membrane, it is possible to minimize the membrane that has greater area for high sensitivity, and further, it is possible to minimize the area while providing the same effect as beam-shape springs and serpentine springs through an arc-shape spring design. A piezoresistor such as silicon nanowires with good piezoresistive properties as a sensing element is included in the spring structure to achieve high sensitivity, and the piezoresistor is placed in the spring structure at each location where the maximum tension occurs and where the maximum compression occurs through simulation. This allows both single-mode and differential-mode measurement, thereby ensuring the maximum resistance change and SNR. 1. A microphone comprising:a membrane;a spring structure that surrounds at least a part of the membrane, the spring structure spaced apart from the membrane;at least one first connecting part that connects the membrane to the spring structure;an anchor structure that surrounds at least a part of the spring structure, the anchor structure spaced apart from the spring structure;at least one second connecting part that connects the anchor structure to the spring structure;at least one piezoresistor formed on the spring structure; andat least one electrode disposed on the anchor structure to sense an electrical signal from a change of the piezoresistor,wherein the membrane, the spring structure, the first connecting part, and the second connecting part float in air by a cavity formed in the anchor structure.2. The microphone according to claim 1 , wherein deformation occurs in the membrane and the spring structure in response to sound pressure introduced from outside through the cavity claim 1 , and the deformation occurs to a greater extent in the ...

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Номер записи: 79
14-02-2019 дата публикации

ENERGY HARVESTING DEVICES AND METHODS OF MAKING AND USE THEREOF

Номер: US20190052195A1
Автор: Muralidharan Nitin, Pint Cary L.
Принадлежит:

Disclosed herein are energy harvesting devices and methods of making and use thereof. The energy harvesting devices can efficiently harvest energy for motions at a frequency of 5 Hz or less. 1. An energy harvesting device comprising:a first electrode comprising a first material; 'wherein the first material comprises a plurality of particles and a plurality of ions;', 'a second electrode comprising the first material;'}a porous separator disposed between the first electrode and the second electrode such that the porous separator is in contact with the first electrode and the second electrode, wherein the porous separator further comprises an electrolyte; andwherein the energy harvesting device is configured to convert a mechanical strain to an electrical current, thereby harvesting energy.2. The energy harvesting device of claim 1 , wherein the plurality of particles have an average lateral dimension of from 10 nanometers (nm) to 10 micrometers (microns claim 1 , μm).3. The energy harvesting device of claim 1 , wherein the plurality of particles have an average thickness of from 1 atomic layer to 50 atomic layers.4. The energy harvesting device of claim 1 , wherein the plurality of particles comprise graphite claim 1 , graphene claim 1 , aluminum claim 1 , a metal dichalcogenide claim 1 , a metal oxide claim 1 , an allotrope of phosphorous claim 1 , or a combination thereof.5. The energy harvesting device of claim 1 , wherein the plurality of ions are intercalated within the plurality of particles.6. The energy harvesting device of claim 1 , wherein the plurality of ions comprise a plurality of alkali metal ions.7. The energy harvesting device of claim 1 , wherein the loading of the first material on the first electrode and/or the second electrode is from 0.1 mg/cmto 10 mg/cm.8. The energy harvesting device of claim 1 , wherein the mechanical strain comprises pressing and/or bending the energy harvesting device.9. The energy harvesting device of claim 1 , wherein the ...

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Номер записи: 80
13-02-2020 дата публикации

Electric Plug-In Connector Having a Plugging Cycle Counter

Номер: US20200052446A1
Автор: Schiefelbein Frank-Peter, Wegener Christian
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

An electric plug-in connector comprising: an electric contact structure accommodated in an enclosure; and a plugging cycle counter including a piezoelectric sensor mechanically connected to the contact structure and/or to the enclosure. The piezoelectric sensor senses joining of the electric contact structure to a corresponding electric contact structure. 1. An electric plug-in connector comprising:an electric contact structure accommodated in an enclosure; anda plugging cycle counter including a piezoelectric sensor mechanically connected to the contact structure and/or to the enclosure;wherein the piezoelectric sensor senses joining of the electric contact structure to a corresponding electric contact structure.2. The plug-in connector as claimed in claim 1 , wherein the electric contact structure comprises a pin contact or a socket contact.3. The plug-in connector as claimed in claim 1 , wherein the piezoelectric sensor is mounted on a receiving surface of the enclosure or is embedded beneath the receiving surface in the material of the enclosure.4. The plug-in connector as claimed in claim 1 , wherein the piezoelectric sensor is mechanically fixed between two sub-regions of the contact structure and the two sub-regions are movable relative to each other.5. The plug-in connector as claimed in claim 1 , wherein the piezoelectric sensor is mechanically fixed between the contact structure and the enclosure and the contact structure is movable relative to the enclosure.6. The plug-in connector as claimed in claim 1 , wherein the piezoelectric sensor comprises a plurality of disks mechanically connected in series claim 1 , wherein the disks are delimited on both sides by electrode plates alternately electrically connected in parallel.7. The plug-in connector as claimed in claim 1 , further comprising an evaluation unit with a memory module storing a counter for a number of plugging cycles completed.8. The plug-in connector as claimed in claim 7 , wherein the ...

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Номер записи: 81
05-03-2015 дата публикации

ACCELERATION SENSOR

Номер: US20150059477A1
Автор: Kim Jong Woon, LEE Sung Jun, Lim Chang Hyun
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Disclosed herein is an acceleration sensor including: a mass; a flexible beam on which an electrode or a piezoresistive element is disposed and the mass is coupled; and a support part connecting to and supporting the flexible beam and having therein a stress isolating slit facing the mass, wherein the mass, the flexible beam and the support part are formed by coupling first and second substrates, wherein the first substrate has a first masking pattern formed thereon corresponding to the flexible beam, the mass and the support part and the second substrate has a second masking pattern formed thereon corresponding to the mass and the support part. 1. An acceleration sensor comprising:a mass;a flexible beam on which an electrode or a piezoresistive element is disposed and the mass is coupled; anda support part connecting to and supporting the flexible beam and having therein a stress isolating slit facing the mass,wherein the mass, the flexible beam and the support part are formed by coupling first and second substrates, wherein the first substrate has a first masking pattern formed thereon corresponding to the flexible beam, the mass and the support part and the second substrate has a second masking pattern formed thereon corresponding to the mass and the support part.2. The acceleration sensor as set forth in claim 1 , wherein the support part includes therein a stress isolating beam by the presence of the stress isolating slit claim 1 , wherein the stress isolating beam is formed with the first substrate.3. The acceleration sensor as set forth in claim 2 , wherein the stress isolating beam includes:a membrane part connected to the flexible beam; anda stress isolating part perpendicularly connected to the membrane part.4. The acceleration sensor as set forth in claim 3 , wherein a coupling portion of the stress isolating part coupled with the membrane part has smaller area than the membrane part.5. The acceleration sensor as set forth in claim 3 , wherein the stress ...

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Номер записи: 82
21-02-2019 дата публикации

ENCAPSULATED MICROELECTROMECHANICAL STRUCTURE

Номер: US20190055121A1
Автор: Gupta Pavan, Lutz Markus, Partridge Aaron
Принадлежит:

A semiconductor layer having an opening and a MEMS resonator formed in the opening is disposed between first and second substrates to encapsulate the MEMS resonator. An electrical contact that extends from the opening to an exterior of the MEMS device is formed at least in part within the semiconductor layer and at least in part within the first substrate. 120-. (canceled)21. A method of fabricating a microelectromechanical system (MEMS) device , the method comprising: a cavity with a MEMS resonator therein,', 'a first electrically conductive feature functionally coupled to the MEMS resonator and exposed at a first surface of the semiconductor layer, and', 'an insulating region exposed at the first surface of the semiconductor layer adjacent the first electrically conductive feature;, 'forming within a semiconductor layer of a semiconductor-on-insulator (SOI) waferbonding a semiconductor cover wafer to the first surface of the semiconductor layer of the SOI wafer to hermetically seal the MEMS resonator within the cavity; andforming within the semiconductor cover wafer a second electrically conductive feature that extends through the semiconductor cover wafer to contact the first electrically conductive feature, including forming an isolation trench that extends through the semiconductor cover wafer to the insulating region to electrically isolate a conductive path formed by the first and second electrically conductive features from a bulk region of the semiconductor cover wafer.22. The method of further comprising fabricating complementary metal oxide semiconductor (CMOS) transistor circuitry within the semiconductor cover wafer.23. The method of wherein forming the second electrically conductive feature within the semiconductor cover wafer comprises impurity doping at least a portion of the semiconductor cover wafer to render electrical conductivity thereof.24. The method of wherein forming the isolation trench comprises forming a trench that surrounds the impurity ...

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Номер записи: 83
01-03-2018 дата публикации

SENSOR AND ELECTRONIC DEVICE

Номер: US20180058965A1
Автор: Fuji Yoshihiko, Hara Michiko, Tomizawa Yasushi, YUZAWA Akiko
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, a sensor includes a first film, a first sensor portion, and a first element portion. The first film is deformable. The first sensor portion is provided at the first film. The first sensor portion includes a first magnetic layer, a second magnetic layer provided between the first film and the first magnetic layer, and a first intermediate layer provided between the first magnetic layer and the second magnetic layer. The first element portion includes a first piezoelectric layer fixed to the first film. 1. A sensor , comprising:a first film, the first film being deformable; a first magnetic layer,', 'a second magnetic layer provided between the first film and the first magnetic layer, and', 'a first intermediate layer provided between the first magnetic layer and the second magnetic layer; and, 'a first sensor portion provided at the first film, the first sensor portion including'}a first element portion including a first piezoelectric layer fixed to the first film.2. The sensor according to claim 1 , whereinthe first element portion has a first state and a second state, a first signal being input in the first state, the second state being different from the first state, anda shape of the first film in the first state is different from a shape of the first film in the second state.3. The sensor according to claim 2 , further comprising a controller being electrically connected to the first element portion and configured to supply the first signal to the first element portion.4. The sensor according to claim 3 , wherein the controller sets the first signal according to an electrical resistance between the first magnetic layer and the second magnetic layer.5. The sensor according to claim 1 , wherein the first element portion is provided at the first film.6. The sensor according to claim 1 , wherein the first piezoelectric layer overlaps the first film in a first direction connecting the first film and the first sensor portion.7. The sensor ...

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Номер записи: 84
03-03-2016 дата публикации

POWER GENERATOR

Номер: US20160065093A1
Автор: Furukawa Kenichi, Numakunai Takayuki
Принадлежит:

A power generator includes a magnetostrictive rod through which lines of magnetic force pass in an axial direction thereof, a beam portion having a function of causing stress in the magnetostrictive rod and a coil provided so that the lines of magnetic force pass inside the coil in an axial direction of the coil A space between the magnetostrictive rod and the beam portion at the other end of the magnetostrictive rod is smaller than that at one end of the magnetostrictive rod in a side view of the power generator In such a configuration, a stiffness in a displacement direction of a pair of opposed beams formed from the magnetostrictive rod and the beam portion becomes gradually lower from a proximal end thereof toward a distal end thereof. With such a configuration, when external force is applied to the distal end of the magnetostrictive rod it is possible to smoothly displace the magnetostrictive rod and the beam portion in the displacement direction. Therefore, it is possible to make variability of stress caused in the thickness direction of the magnetostrictive rod small. As a result, it is possible to cause uniform stress in the magnetostrictive rod to thereby improve the power generating efficiency of the power generator 1. A power generator comprising:at least one magnetostrictive rod through which lines of magnetic force pass in an axial direction thereof, the magnetostrictive rod formed of a magnetostrictive material and having one end and the other end;a beam portion having a function of causing stress in the magnetostrictive rod; anda coil provided so that the lines of magnetic force pass inside the coil in an axial direction of the coil whereby a voltage is generated due to variation of density of the lines of magnetic force,wherein the power generator is configured so that the density of the lines of magnetic force varies when the other end of the magnetostrictive rod is relatively displaced toward a direction substantially perpendicular to an axial ...

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Номер записи: 85
03-03-2016 дата публикации

PIEZOELECTRIC ENERGY HARVESTER AND WIRELESS SWITCH INCLUDING THE SAME

Номер: US20160065094A1
Автор: JEONG In Wha, KIM Hugh, PARK Jong Heum
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Examples provide a piezoelectric energy harvester and a wireless switch including the same. The piezoelectric energy harvester includes a pressure transmission part situated between a pressing plate and a piezoelectric body, so as to transmit a uniform amount of pressure to the piezoelectric body, thereby generating a constant level of energy. In addition, a wireless switch uses energy generated in the piezoelectric energy harvester as its driving power, thereby transmitting radio frequency (RF) communications signals to an external electronic device to control the operation of the electronic device. 1. A piezoelectric energy harvester comprising:a plate;a piezoelectric element situated on one surface of the plate;a pressing plate situated so as to be spaced apart from the piezoelectric element; anda pressure transmission element situated between the pressing plate and the piezoelectric element.2. The piezoelectric energy harvester of claim 1 , wherein the pressing plate has a through-hole penetrating through the pressing plate claim 1 ,one end of the pressure transmission element is inserted into the through-hole, andthe other end of the pressure transmission element is situated to be in contact with the piezoelectric element.3. The piezoelectric energy harvester of claim 1 , wherein the pressure transmission element comprises:a body comprising upper and lower portions that are open, and that comprises an internal space;a first elastic member enclosing the upper portion of the body; anda second elastic member enclosing the lower portion of the body.4. The piezoelectric energy harvester of claim 3 , wherein the upper portion of the body and the lower portion of the body have different areas.5. The piezoelectric energy harvester of claim 4 , wherein the body has a conical shape.6. The piezoelectric energy harvester of claim 3 , wherein the internal space of the body is filled with a fluid.7. The piezoelectric energy harvester of claim 6 , wherein the fluid is an ...

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Номер записи: 86
03-03-2016 дата публикации

PIEZOELECTRIC ENERGY HARVESTER AND WIRELESS SWITCH INCLUDING THE SAME

Номер: US20160065095A1
Автор: JEONG In Wha, KIM Hugh, PARK Jong Heum
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Provided are a piezoelectric energy harvester and a wireless switch including a piezoelectric energy harvester. The piezoelectric energy harvester uses energy generated in the piezoelectric energy harvester as driving power, thereby transmitting communications signals to an external lighting device using this driving power. Furthermore, the piezoelectric energy harvester generates power having different magnitudes depending on magnitudes of external force applied to a pressing member by a user or duration of the external force. A transmitting module of the wireless switch transmits signals that may adjust intensity of light to the external lighting device depending on the magnitudes of the generated power. 1. A piezoelectric energy harvester comprising:a plate that is elastically deformable;a piezoelectric element situated on the plate;a magnet situated to be spaced apart from the plate;an insulator situated to movable to allow a magnetic force of the magnet to have an influence on the plate or to block the magnetic force of the magnet from acting on the plate; anda pressing member connected to the insulator to move the insulator,wherein the insulator moves along with the pressing member.2. The piezoelectric energy harvester of claim 1 , wherein the insulator entirely covers the magnet with respect to the plate in response to an external force not being applied to the pressing member.3. The piezoelectric energy harvester of claim 2 , wherein an area of the magnet that is covered by the insulator is determined based on a magnitude of the external force that is applied to the pressing member.4. The piezoelectric energy harvester of claim 2 , wherein an area of the magnet covered by the insulator is determined based on a duration of the external force applied to the pressing member.5. The piezoelectric energy harvester of claim 1 , wherein the pressing member comprises:a manipulator connected to the insulator;a fixed plate situated between the insulator and the ...

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Номер записи: 87
03-03-2016 дата публикации

PIEZOELECTRIC ENERGY HARVESTER AND WIRELESS SWITCH INCLUDING THE SAME

Номер: US20160065096A1
Автор: JEONG In Wha, KIM Hugh, PARK Jong Heum
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Provided are a piezoelectric energy harvester and a wireless switch including the piezoelectric energy harvester. The wireless switch uses energy generated in a piezoelectric energy harvester as a source of driving power, thereby transmitting communications signals to an external electronic device without requiring a battery. In addition, the piezoelectric energy harvester generates displacement in a piezoelectric element through a magnetic force generated in a magnet, thereby generating a constant level of energy when generating the driving power. 1. A piezoelectric energy harvester comprising:a plate that is elastically deformable;a piezoelectric element situated on the plate;a magnet situated to be spaced apart from the plate; andan insulator movably situated between the plate and the magnet,wherein the plate is elastically deformed by a magnetic force of the magnet.2. The piezoelectric energy harvester of claim 1 , wherein one end of the plate is a fixed end claim 1 , andanother end of the plate is a free end.3. The piezoelectric energy harvester of claim 2 , wherein the magnet is situated to face a portion of the plate that is adjacent to the other end of the plate.4. The piezoelectric energy harvester of claim 1 , further comprising a support to which one end of the plate is fixed.5. The piezoelectric energy harvester of claim 1 , wherein the plate is formed of a magnetic material or a metal.6. The piezoelectric energy harvester of claim 1 , further comprising a pressing member connected to the insulator and configured to move the insulator.7. The piezoelectric energy harvester of claim 6 , wherein a magnetic attractive force is generated between the plate and the magnet claim 6 , depending on the movement of the insulator by the pressing member.8. The piezoelectric energy harvester of claim 6 , wherein the pressing member comprises:a manipulator connected to the insulator;a fixed plate situated between the insulator and the manipulator and having an insertion ...

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Номер записи: 88
17-03-2022 дата публикации

Modular piezoelectric sensor array with co-integrated electronics and beamforming channels

Номер: US20220079559A1
Автор: Douglas N. Stephens, Katherine W. Ferrara, Qifa Zhou, Robert G. Wodnicki, Thomas Matthew CUMMINS
Принадлежит: UNIVERSITY OF CALIFORNIA, University of Southern California USC

A modular array includes modular array includes one or more array modules. Each array module includes one or more transducer arrays, where each of the one or more transducer arrays includes a plurality of piezoelectric elements; a conducting interposer arranged and configured to provide acoustic absorbing backing for the one or more transducer arrays; and one or more Application Specific Integrated Circuits (ASICs). The conducting interposer and the one or more ASICs are in electrical contact with each other at a first direct electrical interface. Additionally, the conducting interposer and the one or more transducer arrays are in electrical contact with each other at a second direct electrical interface.

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Номер записи: 89
08-03-2018 дата публикации

ULTRASONIC FINGERPRINT SENSOR PACKAGE, ULTRASONIC FINGERPRINT IDENTIFICATION DEVICE AND ELECTRONIC DEVICE

Номер: US20180068148A1
Автор: BAI Anpeng, SUN Wensi
Принадлежит:

The present disclosure discloses a package for an ultrasonic fingerprint sensor comprising: a substrate comprising a top surface and a plurality of first connecting electrodes formed on the top surface; a control chip arranged on the substrate and comprising a periphery-stepped upper surface facing away from the substrate, the periphery-stepped upper surface comprising a central upper surface and a peripheral lower surface surrounding and being lower than the central upper surface, the control chip comprising a plurality of second connecting electrodes formed on the central upper surface, and a plurality of third connecting electrodes formed on the peripheral lower surface connected to the second connecting electrodes; bonding wires configured to bond the first connecting electrodes to the third connecting electrodes; an ultrasonic transducer arranged on the control chip; and packing material configured to package the substrate, the bonding wires and the ultrasonic transducer as one module. 1. A package of an ultrasonic fingerprint sensor comprising:a substrate comprising a top surface and a plurality of first connecting electrodes formed on the top surface;a control chip arranged on the substrate and comprising a periphery-stepped upper surface facing away from the substrate, the periphery-stepped upper surface comprising a central upper surface and a peripheral lower surface surrounding and being lower than the central upper surface, the control chip comprising a plurality of second connecting electrodes formed on the central upper surface, a plurality of third connecting electrodes formed on the peripheral lower surface and connected to the second connecting electrodes in a predetermined manner by a redistribution layer technique;a plurality of bonding wires, wherein the bonding wires are configured to bond the first connecting electrodes to the third connecting electrodes by a wire bonding technique;an ultrasonic transducer being arranged on the control chip, ...

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Номер записи: 90
10-03-2016 дата публикации

PIEZOELECTRIC SENSOR FOR BICYCLE COMPONENT

Номер: US20160072042A1
Автор: FUKUDA Masahiko, MASUDA Takaya, Watanabe Yoshiyuki
Принадлежит:

A piezoelectric material contains ferroelectric particles and an adhesive resin. The ratio of the ferroelectric particles relative to the total mass of the ferroelectric particles and the adhesive resin is 40 mass % or greater and 98 mass % or less. 1. A piezoelectric material comprising ferroelectric particles and an adhesive resin , wherein a ratio of the ferroelectric particles relative to a total mass of the ferroelectric particles and the adhesive resin is 40 mass % or greater and 98 mass % or less.2. The piezoelectric material according to claim 1 , wherein the ratio of the ferroelectric particles relative to the total mass of the ferroelectric particles and the adhesive resin is 40 mass % or greater and 90 mass % or less.3. The piezoelectric material according to claim 1 , wherein the ratio of the ferroelectric particles relative to the total mass of the ferroelectric particles and the adhesive resin is 80 mass % or less.4. The piezoelectric material according to claim 1 , wherein an average particle diameter of the ferroelectric particles is 2 μm or greater and 10 μm or less.5. The piezoelectric material according to claim 4 , wherein the ferroelectric particles are formed by sintering and then pulverizing a resulting sinter.6. The piezoelectric material according to claim 1 , wherein the piezoelectric material has a thickness of 20 μm or greater and 200 μm or less.7. A piezoelectric sensor comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the piezoelectric material according to ; and'}two electrodes coupled to the piezoelectric material.8. The piezoelectric sensor according to claim 7 , wherein the two electrodes include an outer electrode coupled to an outer surface of the piezoelectric material and an inner electrode coupled to an inner surface of the piezoelectric material to sandwich the piezoelectric material therebetween.9. The piezoelectric sensor according to claim 8 , wherein the inner electrode includes a plurality of inner sub- ...

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Номер записи: 91
10-03-2016 дата публикации

POWER GENERATOR

Номер: US20160072410A1
Автор: Furukawa Kenichi, Numakunai Takayuki
Принадлежит:

A power generator includes two magnetostrictive elements and a connecting member having a first connecting portion connecting one end portions of the magnetostrictive elements together, a second connecting portion connecting the other end portions of the magnetostrictive elements together and a beam portion connecting the first connecting portion and the second connecting portion . Each of the magnetostrictive elements includes a magnetostrictive rod formed of a magnetostrictive material, through which lines of magnetic force pass in an axial direction thereof, and a coil wound around the magnetostrictive rod . Further, each magnetostrictive rod and the beam portion are arranged so as not to be overlapped with each other. 1. A power generator comprising:at least two magnetostrictive elements arranged in parallel with each other, each magnetostrictive element having an one end portion and the other end portion; anda connecting member having a first connecting portion connecting the one end portions of the magnetostrictive elements together, a second connecting portion connecting the other end portions of the magnetostrictive elements together and at least one beam portion connecting the first connecting portion and the second connecting portion, a magnetostrictive rod through which lines of magnetic force pass in an axial direction thereof, the magnetostrictive rod formed of a magnetostrictive material and having one end and the other end; and', 'a coil wound around the magnetostrictive rod,, 'wherein each magnetostrictive element includeswherein each magnetostrictive element is configured so that a voltage is generated in the coil by varying the density of the lines of magnetic force when the other end of the magnetostrictive rod is relatively displaced toward a direction substantially perpendicular to an axial direction of the magnetostrictive rod with respect to the one end of the magnetostrictive rod to expand or contract the magnetostrictive rod, andwherein the ...

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Номер записи: 92
28-02-2019 дата публикации

ENERGY HARVESTER AND METHOD FOR CONVERTING KINETIC ENERGY TO ELECTRICAL ENERGY

Номер: US20190068084A1
Автор: PAGET Christophe, REHMAN Muhammad Abdul
Принадлежит:

An energy harvester () converts kinetic energy into electrical energy. The energy harvester includes: one or more walls () defining a chamber (), the chamber () being provided with a plurality of impactors () free to move within the chamber so as to impact at least one of the walls when the chamber is subjected to movement, and a transducer () configured to convert the impact of the impactors on one or more of the walls into electrical energy. 1. An energy harvester for converting kinetic energy into electrical energy , the energy harvester comprising:one or more walls defining a chamber,the chamber being provided with a plurality of impactors free to move within the chamber so as to impact at least one of the walls when the chamber is subjected to movement, anda transducer configured to convert the impact of the impactors on one or more of the walls into electrical energy.2. (canceled)3. The energy harvester according to claim 1 , in which the plurality of impactors is free to move within the chamber so as to impact each of the walls when the chamber is subjected to movement.4. The energy harvester according to claim 1 , wherein the chamber is provided with at least 10 but no more than 200 impactors or is provided with at least 100 and no more than 4 claim 1 ,000 impactors.5. The energy harvester according to claim 4 , in which the impactors have a mean greatest dimension of from 0.05 cm to 1.0 cm or a mean greatest dimension of from 0.01 cm to 0.3 cm.67-. (canceled)8. The energy harvester according to claim 1 , in which the impactors provided in the chamber are of uniform shape and size.910-. (canceled)11. The energy harvester according to claim 1 , in which the ratio of the maximum dimension of the chamber to the mean maximum dimension of the impactors is from 3 to 20.12. The energy harvester according to claim 1 , in which the chamber is defined by more than one wall claim 1 , and not all of the walls are associated with the transducer to provide an electrical ...

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Номер записи: 93
28-02-2019 дата публикации

ELECTRIC DOOR RELEASE POWERED BY AN ENERGY HARVESTER

Номер: US20190068085A1
Автор: Hanchett Leland J., Sullivan Scott, Webb Michael A.
Принадлежит: Hanchett Entry Systems, Inc.

A piezoelectric energy harvester system for collecting kinetic energy is provided, wherein the kinetic energy is converted into electrical energy, and wherein at least a portion of the converted electrical energy is utilized to operate a load. The system comprises an energy input portion and an energy harvesting portion. The energy input portion includes an input member configured to be actionable by an outside force. The energy harvesting portion includes a capture member, a sprocket portion, and a piezoelectric energy harvester. The capture member is adapted for receiving mechanical input from the input member. The sprocket portion is disposed for movement with the capture member. The sprocket portion includes at least one radially disposed sprocket actuator configured for making contact with and exciting the piezoelectric energy harvester. The piezoelectric energy harvester is excited by the contact to produce the kinetic energy. 1. A door , comprising:an electric door release mechanism defining locked and unlocked states;a switch having a movable switch member actuated to enable said electric door release mechanism to change from said locked state to said unlocked state in order to unlock said door;an electrical energy storage device that is operably connected to said electric door release mechanism; anda piezoelectric device having a bendable piezoelectric element operably connected to said electrical energy storage device such that said piezoelectric device is excited by a user input to charge said electrical energy storage device,wherein electrical energy from said electrical energy storage device is utilized to actuate said electric door release mechanism to thereby unlock said electric door release mechanism.2. A door in accordance with wherein said user input is provided by an outside force applied to said door.3. A door in accordance with wherein said electric door release mechanism is one of a door strike or a door lock.4. A device for unlatching a door ...

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Номер записи: 94
11-03-2021 дата публикации

ACOUSTIC SENSOR SELF-INDUCED INTERFERENCE CONTROL

Номер: US20210074904A1
Автор: Chang Chung, Coates Richard Timothy, Jin Jing
Принадлежит:

Methods, systems and devices are disclosed for controlling self-induced acoustic interference. In one embodiment, a first piezoelectric transducer to which a first excitation signal is applied, generates back side acoustic waves that are transmitted from a back side of the first piezoelectric transducer into a backing material layer. A second piezoelectric transducer coupled to a back side of the backing material layer generates a first calibration response to the back side acoustic waves. An interference signal profile is generated based, at least in part, on the first calibration response and may be used to filter interference signal components and/or to generate a control signal to be applied to the second piezoelectric transducer during measurement cycles. 1. A method comprising:generating, by a first piezoelectric transducer to which a first excitation signal is applied, back side acoustic waves that are transmitted from a back side of the first piezoelectric transducer into a backing material layer;generating, by a second piezoelectric transducer coupled to a back side of the backing material layer, a first calibration response to the back side acoustic waves; andgenerating an interference signal profile based, at least in part, on the first calibration response.2. The method of claim 1 , wherein said generating an interference signal profile comprises determining values for a first transfer function claim 1 , T claim 1 , that relates the first calibration response to the first excitation signal.3. The method of claim 2 , wherein said determining the values for Tcomprises calculating the values for Tin accordance with the relation T=M(t)./I(t) claim 2 , wherein M(t) represents the first calibration response and I(t) represents the first excitation signal.4. The method of claim 2 , further comprising:generating, by the second piezoelectric transducer to which a second excitation signal is applied, acoustic waves into the backing material layer;generating, by ...

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Номер записи: 95
24-03-2022 дата публикации

MONOLITHICALLY INTEGRATED MULTI-SENSOR DEVICE ON A SEMICONDUCTOR SUBSTRATE AND METHOD THEREFOR

Номер: US20220089433A1
Автор: GOGOI BISHNU PRASANNA
Принадлежит: Versana Micro Inc.

A monolithically integrated multi-sensor (MIMS) is disclosed. A MIMs integrated circuit comprises a plurality of sensors. For example, the integrated circuit can comprise three or more sensors where each sensor measures a different parameter. The three or more sensors can share one or more layers to form each sensor structure. In one embodiment, the three or more sensors can comprise MEMs sensor structures. Examples of the sensors that can be formed on a MIMs integrated circuit are an inertial sensor, a pressure sensor, a tactile sensor, a humidity sensor, a temperature sensor, a microphone, a force sensor, a load sensor, a magnetic sensor, a flow sensor, a light sensor, an electric field sensor, an electrical impedance sensor, a galvanic skin response sensor, a chemical sensor, a gas sensor, a liquid sensor, a solids sensor, and a biological sensor. 1. A monolithically integrated multi-sensor (MIMs) comprising: an inertial sensor;', 'a first micro-electromechanical system (MEMS) sensor;', 'a second MEMS sensor wherein the inertial sensor, the first MEMS sensor, and the second MEMS sensor are formed on a single semiconductor substrate and wherein the inertial sensor is sealed from an external environment by one or more layers of the monolithic integrated circuit process., 'an integrated circuit formed using a monolithic integrated circuit process comprising2. The monolithically integrated multi-sensor (MIMs) of wherein the inertial sensor claim 1 , the first MEMS sensor claim 1 , and the second MEMS sensor each measure a different parameter.3. The monolithically integrated multi-sensor (MIMs) of further including at least a third MEMS sensor wherein the inertial sensor claim 1 , the first MEMS sensor claim 1 , the second MEMS sensor claim 1 , and the third MEMS sensor measures each measure a different parameter.4. The monolithically integrated multi-sensor (MIMs) of wherein the inertial sensor is one of an accelerometer or a gyroscope.5. The monolithically ...

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Номер записи: 96
05-03-2020 дата публикации

SENSING COMPONENT AND PULSE MEASURING METHOD

Номер: US20200073505A1
Автор: Liu Yu-Jung, LU Wen-Je
Принадлежит:

A sensing component includes multiple piezoelectric pressure sensors. The piezoelectric pressure sensor includes a piezoelectric material layer, a thin film transistor array and an induced electrode. The piezoelectric material layer is configured to measure pulse at multiple positions to generate the corresponding multiple pulse signals. The thin film transistor array electrically coupled to the piezoelectric material layer includes multiple transistors. The transistor includes a first terminal, a second terminal and a control terminal. The first terminal is configured to receive one of the pulse signals. The second terminal coupled to a data line is configured to output a first sensing signal according to the one of the pulse signals. The control terminal is configured to receive a clock signal. The induced electrode coupled to the piezoelectric material layer is configured to receive another one of the pulse signals to output a second sensing signal. 1. A sensing component , comprising: a piezoelectric material layer, configured to measure pulses at a plurality of positions to generate a plurality of corresponding pulse signals;', a first terminal, configured to receive one of the plurality of pulse signals;', 'a second terminal, coupled to a data line, configured to output a first sensing signal according to the one of the plurality of pulse signals; and', 'a control terminal, configured to receive a clock signal; and, 'a thin film transistor array, coupled to the piezoelectric material layer, wherein the thin film transistor array comprises a plurality of transistors, one of the transistors comprises, 'an induced electrode, coupled to the piezoelectric material layer, configured to receive another one of the plurality of pulse signals to output a second sensing signal., 'a piezoelectric pressure sensor, comprising2. The sensing component of claim 1 , wherein the induced electrode and any one of the plurality of transistors are not coupled to each other.3. The ...

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Номер записи: 97
16-03-2017 дата публикации

ENERGY HARVESTING FOR LEADLESS PACEMAKERS

Номер: US20170077839A1
Автор: Ansari Mohammad Hossein, BRADLEY David J., INMAN Daniel J., Karami Mohammad Amin
Принадлежит:

An energy harvester having a plurality of bimorph beams and a plurality of piezoelectric devices, wherein at least two of the piezoelectric devices are mounted to each of the plurality of bimorph beams. A plurality of rigid beams interconnect adjacent ends of the bimorph beams to define a stacked, fan-folded shape having a first end of one of the bimorph beams mounted to a structure. A tip mass is disposed on a free end of another of the plurality of bimorph beams. Upon movement of the energy harvester, the plurality of bimorph beams is caused to deflect and thereby output electrical power from the plurality of piezoelectric devices. 1. An energy harvester comprising:a plurality of bimorph beams;a plurality of piezoelectric devices, at least two of said plurality of piezoelectric devices being mounted to each of said plurality of bimorph beams;a plurality of rigid beams interconnecting adjacent ends of said plurality of bimorph beams to define a stacked, fan-folded shape having a first end of one of said plurality of bimorph beams being mounted to a structure; anda tip mass being disposed on a free end of another of said plurality of bimorph beams,wherein upon movement of the energy harvester, said plurality of bimorph beams are caused to deflect and output electrical power from said plurality of piezoelectric devices.2. The energy harvester according to wherein each of said plurality of bimorph beams comprises a brass substrate and said piezoelectric device is mounted thereto.3. The energy harvester according to wherein said at least two of said plurality of piezoelectric devices being mounted to each of said plurality of bimorph beams on opposing sides of said bimorph beam.4. The energy harvester according to wherein said tip mass is chosen to tune a natural frequency of the energy harvester to a desired frequency.5. The energy harvester according to wherein said tip mass is chosen to tune a natural frequency of the energy harvester to a frequency under 200 Hz.6. ...

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Номер записи: 98
26-03-2015 дата публикации

MAGNETO-THERMOELECTRIC GENERATOR FOR ENERGY HARVESTING

Номер: US20150083196A1
Автор: Coggin John Moore, Gray David Todd
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Provided is a magneto-thermoelectric generator (MTG) device for energy harvesting and more particularly a device for converting waste thermal heat from a photovoltaic cell into mechanical energy and ultimately into electrical energy. Embodiments operate on the principle of thermally-induced switching between open and closed states of a ferromagnetic switch to generate mechanical oscillations that cause strain in a piezoelectric material, resulting in the generation of electrical energy. A structure capable of providing a non-linear restoring force provides mechanical energy to the device, which is a significant improvement over prior art MTG devices employing a linear spring restorative force. The device is also provided as a hybrid photovoltaic (PV)/MTG energy harvester for scavenging heat from photovoltaic cells. The hybrid PV/MTG device is particularly useful for harvesting waste heat to boost power generation, extend flight duration, and provide thermal management aboard HALE platforms. 1. A magneto-thermoelectric generator comprising:(a) one or more heat sink;(b) one or more magnetic circuit;(c) one or more temperature-dependent magnetic materials;(d) one or more piezoelectric material, and one or more structure capable of providing a non-linear restorative force, together provided as successive layers adjacent to one another;wherein, during use, the magnetic circuit is disposed proximal to or in operable communication with one or more heat source;wherein, during use, the heat source and the heat sink are capable of providing a thermal gradient with a hot side and a cold side;wherein, the temperature-dependent magnetic material (i) has a thermally induced magnetic transition point within or near temperatures included in the thermal gradient, and (ii) is in operable communication with the structure for providing a non-linear restorative force and the piezoelectric material;wherein, during use, the temperature-dependent magnetic material, the structure for ...

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Номер записи: 99
18-03-2021 дата публикации

TRIBOELECTRIC GENERATOR

Номер: US20210083600A1
Автор: BAIK Jeongmin, Byun Kyungeun, CHUN Jinsung, KIM Jae-Young, SEOL Minsu, SHIN Hyeonjin, YE Byeonguk
Принадлежит:

A triboelectric generator includes first and second electrodes spaced apart from each other, a first charging object on a surface of the first electrode facing the second electrode, a second charging object provided between the first charging object and the second electrode, and a grounding unit configured to intermittently interconnect the second charging object and a charge reservoir due to motion of the second charging object. The first charging object is configured to be positively charged due to contact. The second charging object is configured to be negatively charged due to contact. 1. A triboelectric generator comprising:first and second electrodes spaced apart from each other; at least one of a contact surface of the first charging object and a contact surface of the second charging object including a plurality of protrusions,', 'the first charging object configured to be positively charged due to contact with the second charging object,', 'the first charging object being on a surface of the first electrode facing the second electrode,'}, 'the second charging object being between the first charging object and the second electrode, the second charging object configured to be negatively charged due to contact with the first charging object; and, 'a first charging object and a second charging object,'}a grounding unit configured to intermittently interconnect the second charging object and a charge reservoir due to motion of the second charging object.3. The triboelectric generator of claim 2 , wherein claim 2 ,the first and second charging objects are configured contact each other in response to a first force being applied to at least one of the first and second electrodes,the second charging object and the second electrode are configured to contact each other in response to a second force being applied to the at least one of the first and second electrodes, andthe second force is more than the first force.4. The triboelectric generator of claim 3 , wherein ...

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Номер записи: 100