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

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21-04-2021 дата публикации

Волоконно-оптическое устройство измерения давления

Номер: RU0000203788U1
Автор: Айрат Жавдатович Сахабутдинов, Алина Александровна Тяжелова, Артем Анатольевич Кузнецов, Геннадий Александрович Морозов, Ильнур Ильдарович Нуреев, Олег Геннадьевич Морозов, Павел Евгеньевич Денисенко, Роберт Андреевич Эшпай
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский национальный исследовательский технический университет им. А.Н. Туполева - КАИ"

Полезная модель относится к области измерения давления в области медицины и может быть использована для предотвращения образования пролежней у пациента. Технический результат предлагаемого волоконно-оптического устройства измерения давления заключается в упрощении конструкции предложенного устройства по сравнению с конструкцией прототипа. Технический результат в волоконно-оптическом устройстве измерении давления, содержащем источник лазерного излучения, оптический фильтр, оптический разветвитель, оптический измерительный датчик, фотоприемник, контроллер определения параметра физического поля, достигается тем, что в него дополнительно введены циркулятор, N оптических опорных датчиков, где N – натуральный ряд чисел больше или равно 1, N–1 оптических измерительных датчиков, N–1 фотоприемников, причем число оптических опорных датчиков равно числу оптических измерительных датчиков и равно числу фотоприемников, частотомер, при этом источник лазерного излучения выполнен широкополосным, каждый оптический опорный датчик идентичен друг другу и выполнен на основе волоконной решетки Брэгга с фазовым π-сдвигом, каждый оптический измерительный датчик идентичен друг другу и выполнен на основе волоконной решетки Брэгга с фазовым π-сдвигом, причем коэффициент отражения каждого оптического опорного датчика меньше коэффициента отражения каждого оптического измерительного датчика, каждый фотоприемник идентичен друг другу, контроллер определения параметра физического поля выполнен в виде контроллера определения давления, причем выход источника лазерного излучения соединен посредством волоконного световода с входом циркулятора, первый выход которого соединен посредством волоконного световода с входом оптического фильтра, второй выход циркулятора соединен посредством волоконного световода с входом оптического разветвителя, причем каждый из N выходов оптического разветвителя соединены посредством волоконных световодов соответственно с входами каждого из N оптических опорных датчиков, ...

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Номер записи: 1
04-05-2021 дата публикации

Волоконно-оптическое устройство измерения давления

Номер: RU0000204010U1
Автор: Айрат Жавдатович Сахабутдинов, Алина Александровна Тяжелова, Артем Анатольевич Кузнецов, Геннадий Александрович Морозов, Ильнур Ильдарович Нуреев, Олег Геннадьевич Морозов, Павел Евгеньевич Денисенко, Роберт Андреевич Эшпай
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский национальный исследовательский технический университет им. А.Н. Туполева - КАИ"

Полезная модель относится к области измерения давления в области медицины и может быть использована для предотвращения образования пролежней у пациента. Технический результат предлагаемого волоконно-оптического устройства измерения давления заключается в упрощении конструкции предложенного устройства по сравнению с конструкцией прототипа. Технический результат в волоконно-оптическом устройстве измерения давления, содержащем источник лазерного излучения, оптический фильтр, оптический разветвитель, оптический измерительный датчик, фотоприемник, контроллер определения параметра физического поля, достигается тем, что в него дополнительно введены циркулятор, N-1 оптических датчиков, где N - натуральный ряд чисел больше или равно 1, N-1 фотоприемников, причем число оптических датчиков равно числу фотоприемников, частотомер, при этом источник лазерного излучения выполнен широкополосным, каждый оптический датчик идентичен друг другу и выполнен на основе линейно чирпированной волоконной решетки Брэгга с двумя фазовыми π-сдвигами, каждый фотоприемник идентичен друг другу, контроллер определения параметра физического поля выполнен в виде контроллера определения давления, причем выход источника лазерного излучения соединен посредством волоконного световода с входом циркулятора, первый выход которого соединен посредством волоконного световода с входом оптического фильтра, второй выход циркулятора соединен посредством волоконного световода с входом оптического разветвителя, причем каждый из N выходов оптического разветвителя соединены посредством волоконных световодов соответственно с входами каждого из N оптических датчиков, выходы каждого из N оптических датчиков соединены посредством волоконных световодов соответственно с входами каждого из N фотоприемников, выходы N фотоприемников соединены посредством электрических проводов с соответствующими входами частотомера, выход которого соединен посредством электрических проводов с входом контроллера определения давления. В волоконно ...

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Номер записи: 2
31-05-2021 дата публикации

Волоконно-оптический датчик измерения усилия

Номер: RU0000204543U1
Автор: Вадим Сергеевич Громов, Константин Владимирович Седых
Принадлежит: Общество с ограниченной ответственностью «Пифагор-М»

Полезная модель относится к измерительной технике, а именно к волоконно-оптическим датчикам, и может использоваться в системах контроля и измерения усилий или давления. Волоконно-оптический датчик измерения усилия, содержащий чувствительный элемент, представляющий собой волоконно-оптический кабель в пластиковой оболочке в виде спиральной намотки, и толкатель, обеспечивающий передачу усилия на чувствительный элемент, отличающийся тем, что содержит фиксатор, обеспечивающий восстановление формы чувствительного элемента после снятия усилия с датчика, состоящий из двух полуцилиндрических деталей, повторяющих форму чувствительного элемента, двух прижимов волокна, обеспечивающих неподвижность чувствительного элемента относительно полуцилиндрических деталей в верхней и нижней частях чувствительного элемента и равномерное распределение усилия толкателя на чувствительный элемент, и упругих элементов, представляющих собой механические пружины или отталкивающиеся магниты, расположенные вдоль направляющих осей, обеспечивающих перемещение полуцилиндрических деталей фиксатора в зависимости от усилия на датчик и их возврат в исходное положение после снятия усилия с датчика. Техническим результатом является расширение функциональных возможностей, повышение точности измерения при отрицательных температурах окружающей среды. 2 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 204 543 U1 (51) МПК G01L 1/24 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01L 1/24 (2021.02) (21)(22) Заявка: 2020135930, 02.11.2020 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Общество с ограниченной ответственностью «Пифагор-М» (RU) Дата регистрации: 31.05.2021 (45) Опубликовано: 31.05.2021 Бюл. № 16 2 0 4 5 4 3 R U (54) Волоконно-оптический датчик измерения усилия (57) Реферат: Полезная модель относится к измерительной технике, а именно к волоконно-оптическим датчикам, и может использоваться в системах контроля и ...

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Номер записи: 3
12-01-2012 дата публикации

Method and Device for Position Detection

Номер: US20120007609A1
Автор: Jia-Ming Chen, Shang-Tai Yeh, Shun-Lung Ho
Принадлежит: Egalax Empia Technology Inc

A method and the device for position detection are disclosed. The device comprises a plurality of strips intersecting each other to form a plurality of intersecting regions. A pair of depressed strips intersecting on an intersecting region contact to each other to form a depressed intersecting region. According to the depressed intersecting regions, each depression can be determined. The total contact impedance of a depressing crossover a plurality of intersecting regions is the parallel contact impedance of the contact impedances of all intersecting regions corresponding to the same depression.

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Номер записи: 4
12-01-2012 дата публикации

Method and Device for Position Detection

Номер: US20120007612A1
Автор: Jia-Ming Chen, Shang-Tai Yeh, Shun-Lung Ho
Принадлежит: Egalax Empia Technology Inc

A device comprises a plurality of strips intersecting each other to form a plurality of intersecting regions. A pair of strips intersecting on an intersecting region contact to each other on a contact point to form a depressed intersecting region. The erroneously determined intersecting regions can be detected by comparing the contact points with the corresponding intersecting regions so as to provide the only correct contact points.

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Номер записи: 5
02-02-2012 дата публикации

Electronic circuit for the evaluation of information from variable electric resistance sensors

Номер: US20120025852A1
Автор: Martin Novák
Принадлежит: Czech Technical University In Prague

The solution concerns an electronic circuit for information evaluation from variable electric resistance sensors, where this sensor is formed by a matrix composed of columns and rows. At least one row and one column of the matrix is connected to a circuit which is formed by a parallel combination of a capacitor and a resistor to which a row switch is connected in series, and parallel to that is connected a serial combination consisting of terminals for connecting a variable electric resistance sensor and a column switch. The so formed connection of elements is connected to a power supply. The common point of parallel combination of the capacitor and the resistor is connected over a wave-shaping circuit to a counter. The row switch is connected to one output of a timing block to whose other output is connected a column switch.

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Номер записи: 6
22-03-2012 дата публикации

Method and Apparatus for Measuring the Optical Forces Acting on a Particle

Номер: US20120068059A1
Автор: Amau Farré Flaquer, Mario Montes Usategui
Принадлежит: Individual

An apparatus and method for measuring optical forces acting on a trapped particle. In one implementation the apparatus and method are adaptable for use in the optical train of an optical microscope that is configured to trap, with a single light beam, a particle suspended in a suspension medium between an entry cover and an exit cover of a chamber positioned on or within the microscope. The apparatus and method involves the use of a single collection lens system having a numerical aperture designed to be greater than or equal to an index of refraction index of the suspension medium intended to suspend the particle in the chamber which is placeable at or near the exit cover of the chamber of the microscope. A light sensing device is positioned at or near the back focal plane of the collection lens, or at an optical equivalent thereof, which is capable of directly or indirectly producing optical force measurements acting on the particle derived by the x and y coordinates of the centroid of the light distribution imaged onto the light sensing device by the collection lens.

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Номер записи: 7
22-03-2012 дата публикации

Measuring apparatus

Номер: US20120068177A1
Автор: Chih-Sheng Lin, Ming-Ji Dai, Ra-Min Tain, Shih-Hsien Wu, Shyh-Shyuan Sheu
Принадлежит: Industrial Technology Research Institute ITRI

A measuring apparatus including a first chip, a first circuit layer, a first heater, a first stress sensor and a second circuit layer is provided. The first chip has a first through silicon via, a first surface and a second surface opposite to the first surface. The first circuit layer is disposed on the first surface. The first heater and the first stress sensor are disposed on the first surface and connected to the first circuit layer. The second circuit layer is disposed on the second surface. The first heater comprises a plurality of first switches connected in series to generate heat.

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Номер записи: 8
26-04-2012 дата публикации

Sensor assembly and medical device incorporating same

Номер: US20120096953A1
Автор: Afshin Bazargan, Ian B. Hanson, Pablo Vazquez, Paul F. Bente, IV
Принадлежит: Medtronic Minimed Inc

Apparatus are provided for sensor assemblies and related medical devices. An embodiment of a sensor assembly includes a beam and a sensing element disposed on the beam. The sensor assembly also includes a structure to prevent deflection of the beam when a force applied to the sensor assembly is greater than a threshold value.

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Номер записи: 9
07-06-2012 дата публикации

Movement Monitoring Device For Action Sports, And Associated Methods

Номер: US20120143514A1
Автор: Adrian F. Larkin, Burl W. Amsbury, Curtis A. Vock, Perry Youngs
Принадлежит: PhatRat Tech LLC

A movement monitoring device (MMD) for action sports has a detector for sensing motion associated with action sports, a processor for processing data from the detector to determine one or more movement metrics, and a communications port for wirelessly relaying the movement metrics to a remote location. A method collects motion data within action sports, including: detecting motion of a person or object engaged in action sports; determining one or more events associated with the motion; and wirelessly relaying the events to a remote network. One MMD for action sports is formed within a cell phone having a detector for sensing motion associated with action sports and a processor for processing data from the detector to determine one or more movement metrics for (a) display to a person using carrying the cell phone during action sports or (b) relaying the movement metrics to an external network for review by others.

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Номер записи: 10
14-06-2012 дата публикации

Strain gauge, and system for spatially locating such gauges

Номер: US20120147384A1
Автор: Catherine Bosquet, Nicolas Swiergiel, Sebastien Didierjean
Принадлежит: EUROPEAN AERONAUTIC DEFENCE AND SPACE COMPANY EADS FRANCE

A strain gauge includes a substrate ( 2 ) for mounting an element ( 3 ) to be reversibly lengthened by a force applied while displaying a variation in the resistance thereof, the element ( 3 ) lengthening itself along an axis for measurement by the gauge. The gauge includes at least one contrast target ( 5, 6 ) capable of reflecting an incident light beam, the at least one contrast target ( 5, 6 ) being placed on the gauge in a predetermined position that makes it possible to predetermine the center of the axis ( 4 ), for measurement by the strain gauge ( 1 ), by detecting the position of the at least one contrast target ( 5, 6 ).

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Номер записи: 11
28-06-2012 дата публикации

Optical tactile sensors

Номер: US20120160031A1
Автор: Erwin Bosman, Geert Van Steenberge, Hugo Thienpont
Принадлежит: Interuniversitair Microelektronica Centrum vzw IMEC, Universiteit Gent, Vrije Universiteit Brussel VUB

A sensor for sensing pressure is disclosed. The sensor may be a pressure sensor for sensing pressure, or a tactile sensor for sensing tactile events through pressure measurement. In one aspect, the sensor includes at least one pressure sensor having at least one VCSEL on a substrate. It further includes a compressible sensor layer covering a top surface of the at least one VCSEL, and a reflecting element covering a top surface of the sensor layer. A method of manufacturing such a sensor is also disclosed.

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Номер записи: 12
28-06-2012 дата публикации

Force sensitive device with force sensitive resistors

Номер: US20120162122A1
Автор: Bernard O. Geaghan
Принадлежит: 3M Innovative Properties Co

A force sensitive device comprises a force sensor and a control system. The control system applies drive signals to the force sensor and measures receive signals that are responsive to forces associated with contacts made to the force sensitive device. The control system determines location and force information of one or more contacts on the force sensor based upon the receive signals.

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Номер записи: 13
12-07-2012 дата публикации

Device and method of spacer and trial design during joint arthroplasty

Номер: US20120179069A1
Автор: Farid Amirouche
Принадлежит: ORTHO SENSING Tech LLC

A spacer block for gathering data to be used in the balancing of the joint arthroplasty or repair and in the selection of a trial insert which includes a first body piece and a second body piece. A plurality of sensors and a processor are positioned between the first body piece and the second body piece when the pieces are assembled together to form the spacer block. A chim is removably mounted to a top surface of the second body piece, the chim is associated with the plurality of sensors and positioned in relation to the plurality of sensors such that a force exerted on the chim by a weight bearing surface is detected by the plurality of sensors.

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Номер записи: 14
06-09-2012 дата публикации

Optic fibres and fibre optic sensing

Номер: US20120222487A1
Автор: David John Hill, Magnus Mcewen-King, Roger Ian Crickmore
Принадлежит: Optasense Holdings Ltd

Fibre optic cables with improved performance for use in distributed sensing, for instance in distributed acoustic sensors, are disclosed. In one embodiment a fibre optic cable ( 210 ) comprises a core ( 208 ) and cladding ( 206 ) disposed within a buffer material ( 202 ) and surrounded by a jacket ( 204 ) and arranged so that the core is offset from the centre of the cable. By offsetting the core from the centre of the jacket any bending effects on the core can be maximised compared with the core being located at the centre of the cable.

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Номер записи: 15
20-09-2012 дата публикации

Load pin with increased performance

Номер: US20120234100A1
Автор: Alan John Kempainen, Sivaprakash Eswaran, Sunil Job
Принадлежит: Honeywell International Inc

A load pin includes a main body, a plurality of recesses, and a plurality of sensor pockets. The main body has a plurality of loading surfaces and a plurality of relief surfaces formed therein. Each loading surface is disposed between two of the relief surfaces. The recesses are formed in and extend at least partially around the outer surface of the main body. Each recess has a substantially round inner surface, is formed in a different one of the relief surfaces, and is disposed between a different pair of loading surface. The sensor pockets are formed in the outer surface, extend partially into the main body, are disposed between a pair of loading surfaces, and extend through the recess that is disposed between the same pair of loading surfaces.

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Номер записи: 16
04-10-2012 дата публикации

Strain gage and manufacturing method thereof

Номер: US20120247220A1
Автор: Dohaku Inamori
Принадлежит: Minebea Co Ltd

A strain gage includes a strain sensitive element; and a temperature compensation element, wherein the strain sensitive element and temperature compensation element are monolithically formed. A method of manufacturing the strain gage includes: exposing and developing a strain sensitive element pattern and the temperature compensation element pattern; and etching the strain sensitive element pattern and the temperature compensation element pattern.

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Номер записи: 17
11-10-2012 дата публикации

Fiber optic transducers, fiber optic accelerometers and fiber optic sensing systems

Номер: US20120257208A1
Автор: Agop Hygasov Cherbettchian, David T. Beatson, Eric Lee Goldner, Gerald Robert Baker, James Kengo Andersen
Принадлежит: US Seismic Systems Inc, US SENSOR SYSTEMS Inc

A fiber optic transducer is provided. The fiber optic transducer includes a fixed portion configured to be secured to a body of interest, a moveable portion having a range of motion with respect to the fixed portion, a spring positioned between the fixed portion and the moveable portion, and a length of fiber wound between the fixed portion and the moveable portion. The length of fiber spans the spring. The fiber optic transducer also includes a mass engaged with the moveable portion. In one disclosed aspect of the transducer, the mass envelopes the moveable portion.

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Номер записи: 18
25-10-2012 дата публикации

Balloon Catheter With Integrated Optical Sensor For Determining Balloon Diameter

Номер: US20120271339A1
Автор: Aram Jamous, John Kelly, Patricia O'beirne
Принадлежит: Medtronic Vascular Inc

An apparatus and method for determining an expanded diameter of a catheter balloon. An optical sensor includes an elongated optical fiber with at least one diffraction grating formed in a core of a distal portion thereof. The fiber distal portion is coupled to the inflatable balloon. Broadband light is transmitted to the diffraction grating by an optical interrogator. A portion of the light is reflected from the diffraction grating and is received by a wavelength detector. The wavelength of the reflected portion of light is dependent on the strain applied to the diffraction grating. The wavelength detector determines the strain in the balloon and correlates the strain to the diameter of the balloon.

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Номер записи: 19
08-11-2012 дата публикации

Modalmetric fibre sensor

Номер: US20120281946A1
Автор: Bernhard Koziol, Jim Katsifolis, Yuvaraja Visagathilagar
Принадлежит: FUTURE FIBRE TECHNOLOGIES PTY LTD

A modalmetric fibre sensor comprises a multimode sensor fibre ( 26 ) and a light source ( 14 ) for launching light into the sensor fibre to produce a multimode speckle pattern at an end of the sensor fibre. A single mode fibre ( 22 ) receives light from the multimode speckle pattern for transmission to a detector (18). A further multimode fibre ( 41 ) is disposed between the sensor fibre ( 26 ) and the single mode fibre ( 22 ) so that the single mode fibre ( 22 ) receives light from the speckle pattern by transmission through the further multimode fibre ( 41 ) and the received light includes higher order modes regenerated in the further multimode fibre ( 41 ). The light source may be connected to the single mode fibre ( 22 ) so as to launch light through the single mode fibre into the multimode sensor fibre ( 26 ) via the further multimode fibre ( 41 ) and the remote end ( 28 ) of the sensor fibre ( 26 ) may be mirrored to reflect light back through the sensor fibre to produce the speckle pattern.

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Номер записи: 20
22-11-2012 дата публикации

Footwear Having Sensor System

Номер: US20120291564A1
Автор: Allan M. Schrock, Andrew A. Owings, Anthony C. Dean, Michael S. Amos
Принадлежит: Nike Inc

An article of footwear includes an upper member and a sole structure, with a sensor system connected to the sole structure. The sensor system includes a plurality of sensors that are configured for detecting forces exerted by a user's foot on the sensor. Each sensor includes two electrodes that are in communication with a force sensitive resistive material. Additionally, the sensor system may be provided on an insert that may form a sole member of the article of footwear. The insert may include an airflow system that includes one or more air chambers in communication with one or more air reservoirs through air passages extending therebetween. The insert may also have a multi-layered structure, with the airflow system provided between the layers.

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Номер записи: 21
29-11-2012 дата публикации

Droop Tester Apparatus and Method

Номер: US20120300063A1
Автор: Benjamin Wong, Carolyn Majkrzak, Eric Richardson, Kshitija Garde, Roger Lee
Принадлежит: MEDTRONIC INC

The invention relates to a system for testing heart valve leaflets. The system includes a leaflet support assembly with a support post for receiving and supporting a leaflet to be tested, the post being disposed in a target region of the support assembly. The system also has a transmitter assembly that includes a light source and is configured and arranged to direct light from the light source onto the target region. The system further includes a receiver assembly that has an image sensor configured and arranged to sense an image of the target region and generate image information indicative of the sensed image, such as leaflet droop.

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Номер записи: 22
13-12-2012 дата публикации

Metallic Nanoparticle Pressure Sensor

Номер: US20120313860A1
Автор: Akinori Hashimura, Apostolos T. Voutsas, Liang Tang
Принадлежит: Individual

An electrical pressure sensor is provided with a method for measuring pressure applied to a sensor surface. The method provides an electrical pressure sensor including a sealed chamber with a top surface, first electrode, second electrode, an elastic polymer medium, and metallic nanoparticles distributed in the elastic polymer medium. When the top surface of the sensor is deformed in response to an applied pressure, the elastic polymer medium is compressed. In response to decreasing the metallic nanoparticle-to-metallic nanoparticle mean distance between metallic nanoparticles, the electrical resistance is decreased between the first and second electrodes through the elastic polymer medium.

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Номер записи: 23
20-12-2012 дата публикации

Bearing device having a sensor for measuring the vertical bearing force of a rotating shaft

Номер: US20120318071A1
Автор: Bernd Lüneburg, Saskia Biehl
Принадлежит: Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV, SIEMENS AG

A bearing device for bearing a shaft having a bearing, a supporting structure for supporting the bearing and at least on piezoresistive sensor incorporated in the supporting structure in an integrated manner which is arranged in the flux region of the bearing apparatus is provided. The electrical resistance of the sensor is influenced by the vertical force of the bearing having effect on the sensor such that the vertical force of the bearing may be electrically tapped on the sensor. A corresponding method for determining the static and/or dynamic vertical bearing forces of the shaft bearing of a shaft and a rotor system for determining the vertical bearing force of a shaft bearing are provided.

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Номер записи: 24
03-01-2013 дата публикации

Method and system for a fiber optic sensor

Номер: US20130004116A1
Автор: Brian Allen Czapor, Eric John Ruggiero, Thomas Lowell Steen
Принадлежит: General Electric Co

A system and method for assembling a fiber optic sensor assembly are provided. The fiber optic sensor system includes a fiber optic cable and a carrier including a first connection end and a second connection end joined together by one or more breakaway tabs, the first connection end including a first fiber attach point configured to secure a distal end of the fiber optic cable to the first connection end, the second connection end including a second fiber attach point configured to secure the fiber optic cable to the second connection end, the one or more breakaway tabs joined to the first connection end and the second connection end using a break area that is structurally weaker than the carrier and the breakaway tabs.

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Номер записи: 25
24-01-2013 дата публикации

Distractor having a capacitive sensor array for measuring a force, pressure, or load applied by the muscular-skeletal system and method therefor

Номер: US20130023794A1
Автор: Gabriel Carrasco, Marc Stein, Martin Roche
Принадлежит: ORTHOSENSOR INC

A distractor suitable for measuring a force, pressure, or load applied by the muscular-skeletal system is disclosed. In one embodiment, the distractor includes a measurement device that couples to the distractor. In a second embodiment, the sensor array and electronics are placed within the distractor. The distractor can dynamically distract the muscular-skeletal system. A handle of the distractor can be rotated to increase or decrease the spacing between support structures. The measurement system comprises a sensor array and electronic circuitry. In one embodiment, the electronic circuitry is coupled to the sensor array by a unitary circuit board or substrate. The sensors can be integrated into the unitary circuit board. For example, the sensors can comprise elastically compressible capacitors or piezo-resistive devices. The distractor wirelessly couples to a remote system for providing position and magnitude measurement data of the force, pressure, or load being measured.

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Номер записи: 26
24-01-2013 дата публикации

Distractor having an internal load measurment system for the muscular-skeletal system and method therefor

Номер: US20130023795A1
Автор: Gabriel Carrasco, Marc Stein, Martin Roche
Принадлежит: ORTHOSENSOR INC

A distractor suitable for measuring a force, pressure, or load applied by the muscular-skeletal system is disclosed. An insert couples to the distractor. The insert has at least one articular surface allowing movement of the muscular-skeletal system when the distractor is inserted thereto. The insert can be a passive insert having no measurement devices. A sensor array and electronics are housed within the distractor. The distractor can dynamically distract the muscular-skeletal system. A handle of the distractor can be rotated to increase or decrease the spacing between support structures. The measurement system comprises a sensor array and electronic circuitry. In one embodiment, the electronic circuitry is coupled to the sensor array by a unitary circuit board or substrate. The sensors can be integrated into the unitary circuit board. For example, the sensors can comprise elastically compressible capacitors or piezo-resistive devices. The distractor wirelessly couples to a remote system for providing position and magnitude measurement data of the force, pressure, or load being measured.

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Номер записи: 27
31-01-2013 дата публикации

Systems and methods utilizing shape sensing fibers

Номер: US20130030363A1
Автор: Francis MACNAMARA, Gene Reis, Jason J. Hsu, Neal A. Tanner, Randall L. Schlesinger, Serena H. WONG
Принадлежит: Hansen Medical Inc

Systems and methods that utilize shape sensing fibers are described herein. In certain variations, a fiber may include a service loop or other length that allows for sliding or displacing of a fiber within the lumen of an elongate instrument when the distal portion of the elongate instrument is articulated. Systems and methods for registering a shape sensing fiber, including registration fixtures and registration techniques are also described herein.

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Номер записи: 28
21-03-2013 дата публикации

MICROMATERIAL STRAIN MEASUREMENT APPARATUS AND METHOD THEREFOR TECHINICAL FIELD

Номер: US20130068034A1
Автор: Kurahara Hiroaki, Maeda Hidetaka, Matsuda Mitsuhiro, Otsu Masaaki, Takashima Kazuki, Yonekura Tadahiro
Принадлежит:

A measurement unit for tensile or compressive stress can includes a CCD camera for detecting an interference light, the interference light being formed with a measurement beam from a measured region and a reference beam from a reference mirror. A first objective lens can have the reference mirror. An image processing apparatus can measure the three-dimensional shape of the measured region from the position of the first objective lens at which the interference light provides the maximum contrast and can measure the distance between two gauge points on the basis of the three-dimensional shape. When strain is generated on a micromaterial, the strain against the measured tensile stress is measured on the basis of the tensile stress and the distance between the two gauge points. 1. A micromaterial strain measurement apparatus , comprising: a strain generation unit for applying tensile stress or compressive stress to a micromaterial so as to generate strain on the micromaterial and measuring the tensile stress or compressive stress , and a measurement unit for measuring deformation of the micromaterial due to the strain , wherein:the measurement unit includes: a white light source for irradiating a measured region of the micromaterial; a two-dimensional photoelectric sensor for detecting interference light, the interference light being formed with a measurement beam of light from the measured region irradiated with the white light source and a reference beam of light from a reference mirror irradiated with light split from the white light source; a first objective lens which allows the two-dimensional photoelectric sensor to receive the interference light and includes the reference mirror; a second objective lens which has a constant positional relation with the first objective lens in an optical axis direction of the first objective lens, moved with the first objective lens, focal position of which is automatically adjusted from an image-forming state of the measured ...

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Номер записи: 29
21-03-2013 дата публикации

Rail stress detection system and method

Номер: US20130070083A1
Автор: Edwin deSteiguer Snead
Принадлежит: Individual

A system for detecting stress in rails includes a railcar, having a rail temperature detector, and a rail imaging device oriented to produce images of rail joints and rail anchors. The imaging device and temperature detector are connected to a computer controller, which is programmed to provide an output signal indicative of estimated axial stress in the rail based upon rail temperature and the images of at least one of the rail joints and rail anchors.

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Номер записи: 30
28-03-2013 дата публикации

Hermetic Weighing Cell Having Overload Protection

Номер: US20130074610A1
Автор: SCHERER Ralf, Schmittner Arno
Принадлежит: Hottinger Baldwin Messtechnik GmbH

The invention relates to a load cell, preferably for an aseptic platform scale, which is embodied rod-shaped and includes a force introduction element () and a force output element () and a force measuring element arranged axially therebetween. In that regard, the force measuring element comprises a bending beam (), of which the internally located measuring spring parts () with the strain gages applied thereon are hermetically tightly enclosed by welded metal parts (). In that regard, the force introduction element (), the force measuring element () and the force output element () are embodied substantially rotationally symmetrically and rounded-off along a longitudinal axis (), whereby the force measuring element comprises a flexurally stiff pipe sleeve () with the bending beam () arranged therein. Thereby, the ends of the bending beam () are connected with flexurally soft ring elements () which are oriented perpendicularly to the longitudinal axis (), and which are welded with the pipe sleeve () at their radial edge area. The invention is characterized in that an overload protection () is integrated within the bending beam () and/or at least the end face () of the force introduction element () comprises an O-ring seal () and a centering arrangement (). 1123124569132934335694567843121532023111424282932425252829323273. Load cell , preferably for an aseptic platform scale , which is embodied rod-shaped and consists of a force introduction element () and a force output element () and a force measuring element arranged axially therebetween , whereby the force measuring element comprises a bending beam () , of which the internally located measuring spring parts () with the strain gages applied thereon are hermetically tightly enclosed by welded metal parts ( , , ) , and the force F to be measured is introducible perpendicularly to the longitudinal axis () , whereby the force introduction element () , the force measuring element () and the force output element () are ...

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Номер записи: 31
28-03-2013 дата публикации

METHOD AND APPARATUS FOR PROBING AN OBJECT, MEDIUM OR OPTICAL PATH USING NOISY LIGHT

Номер: US20130076861A1
Автор: STERNKLAR Shmuel
Принадлежит:

A method and apparatus for optically probing an object(s) and/or a medium and/or an optical path using noisy light. Applications disclosed include but are not limited to 3D digital camera, detecting material or mechanical properties of optical fiber(s), intrusion detection, and determining an impulse response. In some embodiments, an optical detector is illuminated by a superimposition of a combination of noisy light signals. Various signal processing techniques are also disclosed herein. 1) A method of optically probing an object(s) and/or a medium and/or an optical path including the object(s) or medium , the method comprising:a) illuminating the object(s) or the medium to induce, from the object(s) or medium, one or more noisy light response signals that are randomly or pseudo-randomly modulated;b) receiving into an optical detector an optical superimposition of (i) a source light signal used in step (a) to carry out the illuminating and (ii) one or more of the induced noisy light response signals, thereby illuminating the optical detector so as to generate a combination electrical signal describing the optically superimposed plurality of received noisy light response signals; i) a relationship between power and frequency of the combination electrical signal or a derivative thereof over a discrete or continuous spectrum;', 'ii) a temporal autocorrelation function of the combination electrical signal;', 'iii) a distance parameter(s) involving one or more the objects;', 'iv) a mechanical stress or strain;', 'v) a change in a light propagation time of at least one optical path;', 'vi) a difference in light propagation times of multiple optical paths or a temporal change thereof;', 'vii) mechanical motion of an object; and', 'viii) a material or mechanical property of an optical fiber, at least a portion of which is included in the optical path of step (a)., 'c) determining or characterizing or detecting from the combination electrical signal, at least one of2. ( ...

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Номер записи: 32
04-04-2013 дата публикации

Stress-sensitive material and methods for using same

Номер: US20130082191A1
Автор: Amanda Stevenson, Ashley Jones, Seetha Raghavan
Принадлежит: University of Central Florida Research Foundation Inc UCFRF

A stress-sensing material containing a matrix material and a photo-luminescent particle is disclosed, together with adhesives and coatings containing the stress-sensing material. Also disclosed are methods for preparing the stress-sensing material and measuring the stress on an article using the stress-sensing material.

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Номер записи: 33
04-04-2013 дата публикации

System and method for calibration of optical fiber instrument

Номер: US20130085332A1
Автор: Bhaskar S. Ramamurthy, Neal A. Tanner, Randall L. Schlesinger, Robert G. Younge
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS NV

An instrument system that includes an elongate body in a geometric configuration, an optical fiber, and a controller is provided. The optical fiber is operatively coupled to the elongate body and has a strain sensor provided on the optical fiber, wherein at least a portion of the optical fiber is in the geometric configuration. The controller is operatively coupled to the optical fiber and adapted to receive, from a source other than the optical fiber, information indicative of the geometric configuration, receive a signal from the strain sensor, and associate the signal with the geometric configuration.

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Номер записи: 34
18-04-2013 дата публикации

Sensor readout with redundancy-checking

Номер: US20130093431A1
Автор: Johan Raman, Pieter Rombouts
Принадлежит: MELEXIS TECHNOLOGIES NV

A difference measurement circuit including a first port and a second port for connection to a first set of nodes and a second set of nodes of a sensor unit. The circuit further includes switching units for switching excitation signals emanating from excitation nodes from being applied to the first set of nodes via the first port to being applied to the second set of nodes via the second port and for switching differential measurement signals measured at sensing nodes from being obtained from the second set of nodes via the second port to being obtained from the first set of nodes via the first port. A corresponding method is described. The circuit further includes redundancy testing circuitry for evaluating the similarity or deviation between measurement signals obtained in different states of the switching units.

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Номер записи: 35
02-05-2013 дата публикации

Load detection device for vehicle seat

Номер: US20130104666A1
Автор: Harutomi Nishide, Kan Ichihara, Koichi Nakayama, Koji Washino, Setsu Takuma
Принадлежит: Aisin Seiki Co Ltd

A load detection device for a vehicle seat includes a strain generating body including a first end hole, a second end hole and a strain gauge, a first fixing member including a first middle shaft portion and a first end shaft portion, a second fixing member including a second middle shaft portion and a second end shaft portion, a bracket member including first and second fixing portions connected to each other with a connecting portion, first and second fixing holes, the first end shaft portion is press-fitted into the first fixing hole, the second fixing hole is fitted onto the second end shaft portion in a manner that the second fixing hole includes a degree of freedom of a movement thereof in a lengthwise direction and a movement thereof in a direction intersecting with the lengthwise direction is restricted, and a connecting member.

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Номер записи: 36
09-05-2013 дата публикации

System and method for strain and acoustic emission monitoring

Номер: US20130111994A1
Автор: Mehdi Kalantari Khandani
Принадлежит: Resensys LLC

A device is provided for monitoring strain and acoustic emission in an object. The device includes: a strain measurement portion operable to measure strain; an adhesive layer disposed on the strain measurement portion; and a peel-off mask disposed on the adhesive layer. In an example embodiment, the strain measurement portion includes a body, a transparent window portion, a strain measurement device and a signal processing portion. The body includes an attachment surface, wherein the adhesive layer is disposed on the attachment surface for attachment of the body to the object. The transparent window portion is arranged to enable viewing of a portion of the object through the body. The strain measurement device is disposed within the transparent window portion and is operable to generate a strain signal based on strain in the object. The signal processing portion is operable to generate a processed signal based on the strain signal.

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Номер записи: 37
16-05-2013 дата публикации

Mechanical-Quantity Measuring Device

Номер: US20130118268A1
Автор: Hiromi Shimazu, Hiroyuki Ohta, Yohei Tanno
Принадлежит: HITACHI LTD

A mechanical-quantity measuring device capable of measuring a strain component in a specific direction with high precision is provided. At least two or more pairs of bridge circuits are formed inside a semiconductor monocrystal substrate and a semiconductor chip, and one of these bridge circuits forms a n-type diffusion resistor in which a direction of a current flow and measuring variation of a resistor value are in parallel with a <100> direction of the semiconductor monocryastal silicon substrate, and an another bridge circuit is composed of combination of p-type diffusion resistors in parallel with a <110> direction.

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Номер записи: 38
23-05-2013 дата публикации

Load cell and applications thereof

Номер: US20130126249A1
Автор: Martin Edwy Buttolph
Принадлежит: Simmonds Precision Products Inc

In one aspect, column load cells are described herein. In some embodiments, a column load cell comprises a load bearing column, a plurality of first strain gauges coupled to surfaces of the load bearing column for determining axial strain and a load receiving surface comprising a plurality of load guides, the load guides substantially aligned with the first strain gauges.

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Номер записи: 39
30-05-2013 дата публикации

Bending sensor

Номер: US20130133435A1
Автор: Atsushi Muramatsu, Masaru Murayama, Yuuki Saitou
Принадлежит: Sumitomo Riko Co Ltd

A bending sensor includes a high resistance layer; a low resistance layer having a crack and a lower electrical resistance than the high resistance layer in a state where the crack is closed; an insulating layer between the high and low resistance layers; and a plurality of electrode portions connecting electrically in parallel the high resistance and low resistance layers. In an OFF state where a bend amount is small, the crack is unlikely to open and a combined resistance of electrical resistances of the high resistance layer and the low resistance layer is output as OFF resistance from the plurality of electrode portions. In an ON state where the bend amount is large, the crack is likely to open and at least the electrical resistance of the high resistance layer is output as ON resistance higher than the OFF resistance from the plurality of electrode portions.

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Номер записи: 40
30-05-2013 дата публикации

Occlusion detection for a fluid infusion device

Номер: US20130133438A1
Автор: Afshin Bazargan, Hsiao-Yu S. KOW, Ian B. Hanson, Juan M. Alderete, Jr., Pablo Vazquez, Salman Monirabbasi
Принадлежит: Medtronic Minimed Inc

A device for delivering fluid to a user includes a housing, a drive motor assembly in the housing, a force sensor, and an electronics module. The drive motor assembly regulates delivery of fluid by actuating a piston of a fluid reservoir, and the force sensor generates output levels in response to force imparted thereto during, for example, fluid delivery operations. The electronics module processes the output levels of the force sensor to assess the operating health of the force sensor, to check for occlusions in the fluid delivery path, and to monitor the seating status of the fluid reservoir.

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Номер записи: 41
30-05-2013 дата публикации

NEMS SENSORS FOR CELL FORCE APPLICATION AND MEASUREMENT

Номер: US20130133439A1
Автор: Axelrod Blake Waters, Popescu Paula, Roukes Michael L.
Принадлежит: California Institute of Technology

An apparatus, system, device, and method provide the ability to measure forces a cell exerts on its surroundings. A platform is suspended across an opening using support legs. The platform is able to move horizontally in a plane of the opening. A piezoresistive strain sensor is integrated into the platform and measures strain induced in the support legs when the platform moves horizontally thereby measuring displacement of the platform. 1. An apparatus for measuring forces a cell exerts on its surroundings comprising:a first platform suspended across a first opening using first support legs, wherein the first platform is able to move horizontally in a first plane of the first opening; anda first piezoresistive strain sensor integrated into the first platform, wherein the first piezoresistive strain sensor is configured to measure strain induced in the first support legs when the first platform moves horizontally thereby measuring displacement of the first platform.2. The apparatus of claim 1 , wherein the first piezoresistive strain sensor is integrated into the first platform through at least two of the first support legs.3. The apparatus of claim 1 , wherein:the displacement of the first platform depends linearly on a force applied to move the first platform;a constant of proportionality of the linear dependence is measured; andbased on the constant of proportionality, the apparatus is used to measure the force.4. The apparatus of claim 1 , further comprising:a second platform suspended across the first opening using second support legs, wherein the second platform is able to move horizontally in the first plane of the first opening; anda second piezoresistive strain sensor integrated into the second platform, wherein the second piezoresistive strain sensor is configured to measure strain induced in the second support legs when the second platform moves horizontally thereby measuring displacement of the second platform; the first platform and the second platform ...

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Номер записи: 42
13-06-2013 дата публикации

Personal items network, and associated methods

Номер: US20130151699A1
Автор: Adrian F. Larkin, Burl W. Amsbury, Curtis A. Vock, Paul Jonjak, Perry Youngs
Принадлежит: Apple Inc

A personal items network, comprising a plurality of items, each item having a wireless communications port for coupling in network with every other item, each item having a processor for determining if any other item in the network is no longer linked to the item, each item having an indicator for informing a user that an item has left the network, wherein a user may locate lost items. A method for locating lost personal items, comprising: linking at least two personal items together on a network; and depositing one or both of time and location information in an unlost item when one of the items is lost out of network.

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Номер записи: 43
20-06-2013 дата публикации

APPARATUS AND METHOD FOR ACQUIRING MECHANICAL LOADS ON THRUST ELEMENTS

Номер: US20130152704A1
Автор: BECKER Thomas, Bittner Achim, Kluge Martin, Schmid Ulrich, Schneider Michael
Принадлежит: AIRBUS OPERATIONS GMBH

A device for acquiring mechanical loads on mechanically loaded bodies is provided. The device exhibits a resonance-capable micro-bridge structure, an alternating voltage source with a variable frequency, an impedance measuring device for acquiring the impedance of the micro-bridge structure and an electronic unit for receiving determined impedance values and changing the frequency of the alternating voltage source. By exciting the micro-bridge structure and measuring its impedance, a conclusion can be drawn as to the expansion-dependent resonance frequency, which in return makes it possible to determine the expansion, and hence the mechanical load. Such a device is sufficiently accurate, and largely independent of outside influences. 1. An apparatus for acquiring mechanical loads on a body , comprising:a resonance-capable micro-bridge structure;an alternating voltage source with a variable frequency;an impedance measuring device that determines the impedance of the micro-bridge structure; andan electronic unit the receives the determined impedance values and changes the frequency of the alternating voltage source,wherein the alternating voltage source is connected with the micro-bridge structure, so as to excite an oscillation of the micro-bridge structure, and the electronic unit is set up to determine the expansion of the micro-bridge structure from a measured impedance and an adjusted frequency of the alternating voltage source.2. The apparatus of claim 1 , wherein the micro-bridge structure is couplable to a body claim 1 , and the electronic unit is set up to determine a force acting on the body from an acquired expansion and the known material properties of the body.3. The apparatus of claim 1 , wherein the electronic unit is set up to continuously run through the frequency of the alternating voltage source in a predetermined range around a resonance frequency in an unloaded reference state that would arise with the body unloaded claim 1 , while at the same ...

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Номер записи: 44
20-06-2013 дата публикации

Pressure detection device

Номер: US20130158896A1
Автор: Liviu Schintee
Принадлежит: Custom Fluidpower Pty Ltd

A pressure testing device for calculating a pressure in a flexible line comprises a housing unit, a force sensor mounted on the housing unit and a clamp assembly having a clamp mounted on the housing unit. The clamp is operable to compress the flexible line against the force sensor by a predetermined degree of deformation of the flexible line. The device includes a displacement sensor adapted to measure a displacement of the clamp. The device also includes a controller having a processor in communication with the force sensor and the displacement sensor, and a memory unit containing stored data. At the predetermined degree of deformation of the flexible line, the processor compares a first signal from the force sensor and a second signal from the displacement senor with the stored data to estimate the pressure within the flexible line.

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Номер записи: 45
27-06-2013 дата публикации

System and method for sensing intraocular pressure

Номер: US20130165762A1
Автор: David Sretavan, Hyuck Choo, Myung-Ki Kim
Принадлежит: California Institute of Technology CalTech, UNIVERSITY OF CALIFORNIA

Systems and methods of sensing intraocular pressure are described. In one embodiment, a miniaturized IOP monitoring system is provided using a nanophotonics-based implantable IOP sensor with remote optical readout that can be adapted for both patient and research use. A handheld detector optically excites the pressure-sensitive nanophotonic structure of the IOP-sensing implant placed in the anterior chamber and detects the reflected light, whose optical signature changes as a function of IOP. Optical detection eliminates the need for large, complex LC structures and simplifies sensor design. The use of nanophotonic components improves the sensor's resolution and sensitivity, increases optical readout distance, and reduces its size by a factor of 10-30 over previously reported implants. Its small size and convenient optical readout allows frequent and accurate self-tracking of IOP by patients in home settings. Embodiments can also be used to monitor colonies of animals to support glaucoma research and drug discovery.

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Номер записи: 46
11-07-2013 дата публикации

Apparatus. System And Method For Dynamically Measuring Material Viscoelasticity Using Shear Wave Induced Resonance

Номер: US20130174666A1
Автор: Hadj Henni Anis Redha, Schmitt Cedric Rene
Принадлежит: CENTRE HOSPITALIER DE L'UNIVERSITE DE MONTREAL

A system for dynamically measuring viscoelasticity of material samples using shear wave induced resonance, the system comprising: i) an apparatus comprising a vibration source; a vibration detector; a processor, and a user interface, for example to select a sample holder configuration, and ii) a rigid sample holder connectable to the vibration source, wherein the vibration source generates shear waves that induce vibrations and the resonance of a sample through the holder, the vibration sensor measuring the sample vibrations and resonance, and the processor determining the viscoelasticity of the sample from the vibrations or resonances and from the selected sample holder configuration. Multiple measurement modalities using the system to study materials viscoelasticity as function of time parameters; temperature parameters; strain parameters; repetition parameters and mapping parameters. 1. A method for dynamically measuring viscoelasticity of material samples using shear wave induced resonance , the method comprising:mounting at least one material sample to a rigid sample holder;selectively inducing resonance to the sample by applying selected shear waves induced by the vibrations of the rigid holder;measuring the resonance of the sample in the rigid holder to obtain at least one of:displacement, velocity and acceleration spectra as a function of excitation frequency; andderiving the viscoelastic properties of the sample from the measured spectra and from sample's geometrical shape and precise dimensions.2. The method as claimed in claim 1 , further comprising selecting at least one from a plurality of testing modalities.3. The method as claimed in claim 1 , wherein said holder is a circular or non-circular cylindrical container having an open top and bottom.4. The method as claimed in claim 3 , wherein said sample material is a plate claim 3 , sheet or membrane claim 3 , said holder having a number of apertures providing a corresponding number of circular or non- ...

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Номер записи: 47
18-07-2013 дата публикации

Force-sensing device for measuring a traction-and/or pressure force load in structure

Номер: US20130180343A1
Автор: Fürniss Hartmut, JOST Oliver, Müller Markus
Принадлежит: tecsis GmbH

A force-sensing device for measuring a traction- and/or pressure force load in a structure, for example, in a container-locking bolt is provided. The force-sensing device is constructed shaped like a rod and a sensor section detects expansions and/or compressions of the structure. 1. A force-sensing device for measuring a tractive force load and/or a pressure force load on the structure , witha force measuring sensor and a rod-shaped sensor carrier with a first end and a second end,wherein a head section,', 'a threaded section,', 'a sensor section and', 'a contact section,, 'the sensor carrier consists substantially of an elastically deformable material, and that the sensor carrier comprises in a sequence from its first end to its second end'}wherein the head section comprises a tool attack surface,wherein the threaded section is intended to engage with a counterthread of the structure,wherein the force measuring sensor is fastened on the sensor section in such a manner that an elastic deformation of the sensor section is transmitted to the force measuring sensor,wherein the force measuring sensor is constructed in such a manner that it can supply an electrical, output signal that varies with a deformation of the force measuring sensor, andwherein the contact section has a front surface that is intended to rest on a countersurface of the structure.2. The force-sensing device according to claim 1 , wherein the sensor carrier consists substantially of a metallic material.3. The force-sensing device according to claim 1 , comprising an intermediate section arranged between the threaded section and the sensor section and/or by an intermediate section arranged between the sensor section and the contact section.4. The force-sensing device according to claim 1 , comprising a longitudinal bore that runs through the sensor carrier from its head section to its sensor section and by electrical lines arranged in the longitudinal bore and connected to the force measuring sensor. ...

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Номер записи: 48
01-08-2013 дата публикации

Flexible pipe and end fitting with integrated sensor

Номер: US20130192707A1
Автор: Geoffrey Stephen Graham, Neville Dodds
Принадлежит: Wellstream International Ltd

Apparatus and method of manufacturing a flexible pipe body are disclosed. The method may include providing a fluid retaining layer; wrapping a plurality of tensile armour elements around the fluid retaining layer; and wrapping a crush resistant elongate body that houses at least one fibre element around the fluid retaining layer and radially between two of the plurality of tensile armour elements. Matrix material provided in the elongate body may be cured subsequent to fitting the pipe body to an end fitting.

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Номер записи: 49
01-08-2013 дата публикации

PRESSURE SENSOR AND APPARATUS FOR SENSING PRESSURE AND TOUCH SCREEN INCLUDING THE SAME

Номер: US20130194237A1
Автор: KIM Young Sung, KYUNG Ki Uk, PARK Jun Seok, PARK Sun Tak
Принадлежит: Electronics and Telecommunications Research Institute

Disclosed is a film or a panel that may measure pressure while interacting with an electronic device. A pressure sensor according to the present invention includes: a light source unit to generate light; an optical waveguide to transfer, to a light receiving unit, the light that is generated by the light source unit; and the light receiving unit to receive the light that is transferred through the optical waveguide. The optical waveguide includes a pressure sensing unit to adjust the quantity of light that is transferred through the optical waveguide based on a pressure. The light receiving unit senses the pressure based on the change in the quantity of light that is generated by the light source unit and is transferred through the optical waveguide. 1. A pressure sensor comprising:a light source unit to generate light;an optical waveguide to transfer, to a light receiving unit, the light that is generated by the light source unit; andthe light receiving unit to receive the light that is transferred through the optical waveguide,wherein the optical waveguide includes a pressure sensing unit to adjust the quantity of light that is transferred through the optical waveguide based on a pressure.2. The pressure sensor of claim 1 , wherein the pressure sensing unit includes:a pressurizing layer to which the pressure is applied; andan optical waveguide layer through which the light passes, andthe light receiving unit senses the pressure based on a change in the quantity of light between the generated light and the transferred light that occurs due to a difference between a refractive index of the pressurizing layer and a refractive index of the optical waveguide layer.3. The pressure sensor of claim 2 , wherein:the pressurizing layer and the optical waveguide layer of the pressure sensing unit are formed to be spaced apart from each other, andthe pressurizing layer contacts with the separate optical waveguide layer due to the pressure applied to the pressurizing layer.4. ...

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Номер записи: 50
01-08-2013 дата публикации

Pedalling Data Transfer

Номер: US20130197744A1
Автор: Esa Tuulari, Jari Miettinen
Принадлежит: POLAR ELECTRO OY

A method, apparatus, and computer program for transferring data are presented. In the method, pedalling data is received in a processor, wherein the pedalling data characterize pedalling quantity measured from the force transmission system of a bicycle. A transmission data frame comprising a first sub-frame including at least a portion of the pedalling data is formed, and the transmission data frame is outputted for wireless transmission.

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Номер записи: 51
08-08-2013 дата публикации

Bonding Stress Testing Arrangement and Method of Determining Stress

Номер: US20130199303A1
Автор: Alastair David Trigg, Cheng Kuo Cheng, Cheryl Sharmani Selvanayagam, Kripesh Vaidyanathan, Tai Chong Chai, Xian Tong Chen, Xiaowu Zhang
Принадлежит: Agency for Science Technology and Research Singapore

A bonding stress testing arrangement and a method of determining stress are provided. The bonding stress testing arrangement includes at least one bond pad; a sensor assembly comprising any one of a first sensor arrangement, a second sensor arrangement and a combination of the first sensor arrangement and the second sensor arrangement; wherein the first sensor arrangement is adapted to measure an average stress on a portion of a bonding area under the at least one bond pad, and the second sensor arrangement is adapted to determine stress distribution over a portion or an entire of the bonding area under the at least one bond pad.

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Номер записи: 52
08-08-2013 дата публикации

CONTACT PRESSURE DETECTION APPARATUS AND CONTACT POINT PRESSURE MEASUREMENT APPARATUS

Номер: US20130199310A1
Автор: FUJINO Masao, HAYAKAWA Toshiaki
Принадлежит: ADVANTEST CORPORATION

To measure contact pressure of each of a plurality of small protrusions arranged at a narrow pitch and contacting a flat surface, provided is a contact pressure detection apparatus comprising a sensor section that is contacted by a target and has pressure applied thereto by the target; a light source section that radiates light with a wavelength causing Raman scattering in the sensor section to which the pressure is applied; and a detecting section that receives light from the sensor section and detects the pressure between the sensor section and the target. Also provided is a contact point pressure measurement apparatus that measures contact pressure of an electrode of a device under test, comprising: a fixing section that has the device under test mounted thereon and fixes the electrode of the device under test in a manner to press against the sensor section; and the contact pressure detection apparatus. 1. A contact pressure detection apparatus comprising:a sensor section that is contacted by a target and has pressure applied thereto by the target;a light source section that radiates light with a wavelength causing Raman scattering in the sensor section to which the pressure is applied; anda detecting section that receives light from the sensor section and detects the pressure between the sensor section and the target.2. The contact pressure detection apparatus according to claim 1 , wherein a substrate section that passes the light radiated by the light source section; and', 'a scattering section that is formed on one surface of the substrate section and, when contacted by the target to have pressure applied thereto, causes Raman scattering of input light having the wavelength, and, 'the sensor section includesthe light source section irradiates the scattering section with light from an other surface of the substrate section.3. The contact pressure detection apparatus according to claim 2 , whereinthe scattering section is formed with a substantially uniform ...

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Номер записи: 53
08-08-2013 дата публикации

CONTACT SENSORS, FORCE/PRESSURE SENSORS, AND METHODS FOR MAKING SAME

Номер: US20130204157A1
Автор: Clark Andrew C., Topham David W.
Принадлежит: Sensortech Corporation

Disclosed herein are contact sensors having a conductive composite material formed of a polymer and a conductive filler. In one particular aspect, the composite materials can include less than about 10 wt % conductive filler. The composite material of the contact sensors can have physical characteristics essentially identical to the polymer, while being electrically conductive with the electrical resistance proportional to the load on the sensor. Also disclosed herein are novel force/pressure sensors that include conductive polymer elements. 1. A contact sensor , comprising:a data acquisition terminal; anda polymeric body having a contact surface configured to receive a load, the contact surface having at least one conductive portion that is in communication with the data acquisition terminal, wherein the conductive portion of the contact surface, during application of the load, comprises means for producing an output signal indicative of the change in electrical resistance experienced across the contact surface at the at least one conductive portion,wherein the output signal corresponds to variations in the received load on the contact surface.2. The contact sensor of claim 1 , further comprising at least one electrode coupled to at least a portion of each conductive portion.3. The contact sensor of claim 2 , wherein the at least one electrode comprises a pair of opposed electrodes claim 2 , and wherein the polymeric body is positioned therebetween the pair of opposed electrodes.4. The contact sensor of claim 1 , wherein the at least one conductive portion comprised a plurality of selected spaced conductive portions claim 1 , and wherein the selected spaced conductive portions define an array of sensing points.5. The contact sensor of claim 4 , wherein the output signal is indicative of the change in electrical resistance experienced across the contact surface at at least one sensing point claim 4 , wherein the output signal produced by each sensing point ...

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Номер записи: 54
15-08-2013 дата публикации

NOVEL EMBEDDED 3D STRESS AND TEMPERATURE SENSOR UTILIZING SILICON DOPING MANIPULATION

Номер: US20130205910A1
Автор: Gharib Hossam Mohamed Hamdy, Moussa Walied Ahmed Mohamed
Принадлежит: THE GOVERNORS OF THE UNIVERSITY OF ALBERTA

A new approach for building a stress-sensing rosette capable of extracting the six stress components and the temperature is provided, and its feasibility is verified both analytically and experimentally. The approach can include varying the doping concentration of the sensing elements and utilizing the unique behaviour of the shear piezoresistive coefficient (π) in n-Si. 1. A stress sensor , comprising:a) a semiconductor substrate;b) a plurality of piezoresistive resistors disposed on the substrate, the resistors spaced-apart on the substrate in a rosette formation, the resistors operatively connected together to form a circuit network wherein the resistance of each resistor can be measured; andc) the plurality of piezoresistive resistors comprising a first group of resistors, a second group of resistors, and a third group of resistors, wherein the three groups of resistors are configured to measure six temperature-compensated stress components in the substrate when the sensor is under stress or strain.2. The sensor as set forth in claim 1 , wherein the resistors comprise doped silicon.3. The sensor as set forth in claim 2 , wherein the resistors comprise n-type doped silicon.4. The sensor as set forth in claim 2 , wherein the first group of resistors comprises n-type doped silicon claim 2 , and the second and third groups of resistors comprise p-type doped silicon.5. The sensor as set forth in claim 2 , wherein the doping concentration of the resistors in each group is different from each other.6. The sensor as set forth in claim 1 , wherein the first group comprises four resistors claim 1 , the second group comprises four resistors claim 1 , and the third group comprises two resistors.7. A strain gauge comprising a sensor claim 1 , the sensor comprising:a) a semiconductor substrate;b) a plurality of piezoresistive resistors disposed on the substrate, the resistors spaced-apart on the substrate in a rosette formation, the resistors operatively connected together to ...

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Номер записи: 55
15-08-2013 дата публикации

STRAIN SENSOR, MANUFACTURING METHOD AND SYSTEM

Номер: US20130209024A1
Автор: Angers Tyler Louis, Jonker Jan Wigger, Lowell Mark Edmund, WATERMAN Kendall
Принадлежит: DRAKA HOLDING N.V.

Strain sensor, including an elongated protective encasing () surrounding an inner space, and an optical fiber () extending through the encasing (), the fiber () at least including a fiber core () and a fiber cladding (), wherein a cured filler material fills () at least part of a space between the fiber () and the protective encasing (), the cured filler material () being configured for allowing strain coupling between the protective encasing () and the fiber (), wherein an outer diameter of the fiber () is at least about 250 μm, and wherein the cured filler material () is one or more of: a flexible material, a resilient material, and a material having a shore A hardness that is lower than about 50. The invention also provides a method and system for manufacturing a strain sensor. 1. Strain sensor , including an elongated protective encasing surrounding an inner space , and an optical fiber extending through the encasing , the fiber at least including a fiber core , a fiber cladding and a coating , wherein a cured filler material fills at least part of a space between the fiber and the protective encasing , the cured filler material being configured for allowing strain coupling between the protective encasing and the fiber , wherein an outer diameter of the fiber is at least about 250 μm , and in that the cured filler material is one or more of: a flexible material , a resilient material , and a material having a shore A hardness that is lower than about 50.2. Strain sensor according to claim 1 , wherein at least a section of the tubular encasing has been coiled.3. Strain sensor according to claim 1 , wherein the fiber has some excess fiber length with respect to a length of the tubular encasing.4. Strain sensor according to claim 1 , wherein the cured filler material is selected from the group consisting of: a polymer or polymeric material claim 1 , a rubber or rubberlike material claim 1 , a silicone claim 1 , a thermoplastic material claim 1 , and a cured gel.5. ...

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Номер записи: 56
15-08-2013 дата публикации

SYSTEMS AND METHODS FOR MONITORING REDUCED PRESSURE SUPPLIED BY A DISC PUMP SYSTEM

Номер: US20130209281A1
Автор: Locke Christopher Brian, Tout Aidan Marcus
Принадлежит:

A disc pump system includes a pump body having a substantially cylindrical shape defining a cavity for containing a fluid, the cavity being formed by a side wall closed at both ends by substantially circular end walls, at least one of the end walls being a driven end wall. The system includes an actuator operatively associated with the driven end wall to cause an oscillatory motion of the driven end wall and an isolator is operatively associated with the peripheral portion of the driven end wall to reduce damping of the displacement oscillations. The isolator comprises a flexible printed circuit material that includes a strain gauge. The strain gauge measures data that may be used to determine the amount of pressure provided by the pump. 1. A disc pump system comprising:a pump body having a substantially cylindrical shape defining a cavity for containing a fluid, the cavity being formed by a side wall closed at both ends by substantially circular end walls, at least one of the end walls being a driven end wall having a central portion and a peripheral portion extending radially outwardly from the central portion of the driven end wall;an actuator operatively associated with the central portion of the driven end wall to cause an oscillatory motion of the driven end wall thereby generating displacement oscillations of the driven end wall in a direction substantially perpendicular thereto;an isolator positioned between the peripheral portion of the driven end wall and the side wall to reduce dampening of the displacement oscillations, the isolator comprising a flexible material that stretches and contracts in response to the oscillatory motion of the driven end wall;a first aperture disposed in either one of the end walls and extending through the pump body;a second aperture disposed in the pump body and extending through the pump body;a valve disposed in at least one of the first aperture and second aperture; anda strain gauge operatively associated with the flexible ...

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Номер записи: 57
22-08-2013 дата публикации

Sensing systems and few-mode optical fiber for use in such systems

Номер: US20130216176A1
Автор: Ming-Jun Li, Shenping Li
Принадлежит: Corning Inc

A sensing optical fiber comprising: a few-moded multi-segment core, said core comprising one core segment surrounded by another core segment, and at least one cladding surrounding said core; said core having an F factor (μm 2 ) of 100 μm 2 to 350 μm 2 , and is constructed to provide (i) an overlap integral between the fundamental optical guided mode and the fundamental acoustic guided mode of greater than 0.7 and (ii) the overlap integral between the LP11 optical guided mode and the fundamental acoustic guided mode at least 0.45.

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Номер записи: 58
22-08-2013 дата публикации

ALGORITHM FOR DETECTING ACTIVATION OF A PUSH BUTTON

Номер: US20130218488A1
Автор: "PrudHomme Pierre-Benoit", Aufrere Etienne, Grandemange Eric, Huong Quang
Принадлежит: DELPHI TECHNOLOGIES, INC.

The invention relates to an algorithm for detecting activation of a tactile pressure sensor having a mechanic structure that includes the steps of: (a) measuring periodically an input quantity (V; f) of the sensor, when it is not pressed, the period being set according to sensor dynamic requirements; (b) computing a current idle quantity (Vidle; fidle) depending on the input quantity (V; f) measured at step a); (c) computing an activation threshold (ΔVP; ΔfP) based on a quantity characterization of the sensor mechanic structure and depending on the idle quantity (Vidle; fidle) defined at step b); (d) comparing the sensor input quantity (V; f) with the last defined idle quantity (Vidle; fidle) increased by the activation threshold (ΔVP; ΔfP) computed in step c) in order to determine whether the sensor is pressed or not. 1. An algorithm for detecting activation of a tactile pressure sensor having a mechanic structure comprising the steps consisting of:a) measuring periodically an input quantity of the sensor, when it is not pressed, the period being set according to sensor dynamic requirements;b) computing a current idle quantity depending on the input quantity measured at step a);c) computing an activation threshold based on a quantity characterization of the sensor mechanic structure and depending on the idle quantity defined at step b);d) comparing the sensor input quantity with the last defined idle quantity increased by the activation threshold computed in step c) in order to determine whether the sensor is pressed or not.2. The algorithm according to claim 1 , wherein the quantity measured at step a) is the input frequency defining a current idle frequency at step b) and computing an activation threshold based on a frequency characterization of the sensor mechanic structure and depending on the idle frequency defined at step b).3. The algorithm according to claim 1 , wherein the quantity measured at step a) is the input voltage defining a current idle voltage at ...

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Номер записи: 59
29-08-2013 дата публикации

System For Sensing a Mechanical Property of a Sample

Номер: US20130220032A1
Автор: Javad Dargahi, Muthukumaran Packirisamy, Roozbeh Ahmadi
Принадлежит: Individual

A sensing element for sensing a mechanical property of a sample defining a sample surface using a contact force exerted the sample surface. The sensing element includes: a deformable element defining a contact surface and a deformable section in register with the contact surface, the deformable section being deformable between an undeformed configuration and a deformed configuration; a deformation sensor operatively coupled to the deformable section for sensing and quantifying a deformation of the deformable section between the deformed and undeformed configurations, the deformation sensor being an optical deformation sensor; and a force sensor operatively coupled to the deformable element for sensing the contact force exerted on the contact surface.

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Номер записи: 60
29-08-2013 дата публикации

Electronic device and method for determining a temperature of an electronic device

Номер: US20130222306A1
Автор: Björn ROSQVIST, Lars Knutsson, Magnus Midholt, Peter ÅBERG
Принадлежит: SONY MOBILE COMMUNICATIONS AB

An electronic comprises at least one strain gauge arranged at the electronic device such that a strain of the at least one strain gauge is influenced by a change of a temperature of the electronic device and a control assembly for evaluating an output signal of the at least one strain gauge to determine a temperature of the electronic device on the basis of the output signal and for controlling at least one function of the electronic device based on the determined temperature.

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Номер записи: 61
05-09-2013 дата публикации

LOAD FLEXURE ASSEMBLY

Номер: US20130228021A1
Автор: Clark Brett, Lower John, Troyer Jason, Wiley Robert G.
Принадлежит:

In accordance with present invention, a load flexure assembly is provided. The load cell assembly includes a plurality of load cells (i.e., two or more) connected between a top plate and a bottom plate. The top plate and bottom plate can be arranged substantially in parallel, one above the other, with the plurality of load cells coupled in between the two. 1. A load flexure assembly comprising:a top plate;a bottom plate; anda plurality of load cells coupled between the top and bottom plates.2. The load flexure assembly , wherein the top and bottom plates are arranged substantially in parallel with the plurality of load cells coupled in between the top and bottom plates.3. The load flexure assembly of claim 1 , wherein one or more of the plurality of load cells are thin-beam flexure load cells.4. The load flexure assembly of claim 1 , wherein one or more of the plurality of load cells comprises a flexure and a strain gauge.5. The load flexure assembly of claim 1 , wherein one or more of the plurality of load cells is configured to generate an electrical output indicative of an applied or experienced load.6. The load flexure assembly of claim 1 , wherein at least some of the load cells from the plurality of load cells are peripherally disposed around one or more of the top and bottom plates.7. The load flexure assembly of claim 1 , wherein the plurality of load cells comprises four load cells claim 1 , with each of the four load cells coupled proximate to a different corner of the top and bottom plates.8. The load flexure assembly of claim 7 , wherein one of the four load cells is coupled each to side of the top and bottom plates claim 7 , respectively.9. The load flexure assembly of claim 7 , wherein two of the four load cells are coupled to one side of the top and bottom plates and the other two load cells are coupled to opposite side of the top and bottom plates.10. The load flexure assembly of claim 1 , wherein the plurality of load cells comprises one or more ...

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Номер записи: 62
12-09-2013 дата публикации

EMBEDDED OR CLIP-ON DEVICE FOR HEALTH MONITORING OF AN ARTICLE

Номер: US20130233081A1
Автор: Buca Peter V., Lee Jay, Shilad Isaac, Zhu Xiangdong
Принадлежит: THE UNIVERSITY OF CINCINNATI

A sensor () for monitoring health of an associated article (A) (e.g., a fluid connector) including a sensing element () disposed along a length of an outer surface of the associated article, wherein the sensing element is configured to detect at least one physical property of the associated article and output an electrical signal in proportion to an amount of the physical property applied to the sensing element; and a mounting mechanism () configured to secure the force sensing element to at least a portion of the outer surface of associated article. 1. A sensor for monitoring health of an associated article , the sensor comprising:a sensing element disposed along a length of an outer surface of the associated article, wherein the sensing element is configured to detect at least one physical property of the associated article and output an electrical signal in proportion to an amount of the physical property applied to the sensing element; anda mounting mechanism configured to secure the force sensing element to at least a portion of the outer surface of associated article.2. The sensor of claim 1 , wherein the sensing element is an electroactive polymer that measures force generated between the mounting mechanism and the outer surface of the associated article.3. The sensor of claim 1 , wherein the sensing element is a piezoelectric material that measures force generated between the mounting mechanism and the outer surface of the associated article.4. The sensor of claim 1 , wherein the sensing element is one or strain sensors that measure deformation of the outer surface of the associated article.5. The sensor of claim 1 , further including a deformable dielectric layer configured to cover at least a portion of the associated article and the force sensing material.6. The sensor of claim 5 , wherein the deformable dielectric layer is adhesively affixed to at least a portion of the mounting mechanism.7. The sensor of claim 1 , wherein the mounting mechanism is ...

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Номер записи: 63
12-09-2013 дата публикации

SHIP COMPRISING A MAGNUS ROTOR AND FORCE-MEASURING DEVICE

Номер: US20130233223A1
Автор: Rohden Rolf
Принадлежит: Wobben Properties GMBH

The invention concerns a ship, in particular a cargo ship, comprising at least one Magnus rotor for driving the ship, which has a stationary carrier. The invention concerns in particular a ship in which arranged on the carrier is a measuring device for determining a flexural loading on the carrier. 1. A cargo ship comprising:at least one Magnus rotor for driving the ship, the Magnus rotor having a stationary carrier for mounting the Magnus rotor to the cargo ship; anda measuring device arranged on the carrier for determining a flexural loading on the carrier.2. The ship according to wherein the measuring device includes first and second strain gauge sensors that are arranged at a peripheral surface of the carrier and are spaced angularly relative to each other.3. The ship according to wherein the first strain gauge sensor is arranged with respect to an axis of rotation of the Magnus rotor in the longitudinal direction of the ship and the second strain gauge sensor is arranged with respect to an axis of rotation of the Magnus rotor in the transverse direction of the ship.4. The ship according to wherein the first and second strain gauge sensors are arranged in a horizontal plane.5. The ship according to wherein the carrier is cylindrical at least at the peripheral surface proximate the first and second strain gauge sensors.69. The ship according to wherein the first strain gauge sensor ()-and the second strain gauge sensor are each adapted to output a signal representative of a strain detected.7. The ship according to further comprising a data processing installation for receiving the outputted signals claim 6 , the data processing installation being adapted to ascertain a force vector based on the outputted signals.8. The ship according to wherein the data processing installation is adapted to determine at least one of:a direction of the force vector using a ratio of the strengths of the outputted signals, anda magnitude of the force vector using a ratio of the ...

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Номер записи: 64
19-09-2013 дата публикации

Method and Device for Detecting Crack Formation in a Hoisting Member

Номер: US20130241736A1
Автор: Cornelis Stinis
Принадлежит: Stinis Beheer BV

The invention relates to a method for detecting crack formation in a hoisting member, comprising the steps of measuring a stress under load at two points of the hoisting member, comparing the measured stresses and generating a warning signal when the measured stresses differ too much from each other. The invention also relates to a device for detecting crack formation in a hoisting member, comprising means arranged at two points of the hoisting member for measuring a stress under load, means connected to the measuring means for comparing the measured stresses, and means connected to the comparing means for generating a warning signal when the measured stresses differ too much from each other. Finally, the invention relates to a hoisting frame, comprising a number of hoisting members which are mounted thereon close to its corners, and crack detection devices connected thereto.

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Номер записи: 65
26-09-2013 дата публикации

Torsion measurement device

Номер: US20130247681A1
Автор: Brian D. Bibighaus, David H. Theiss
Принадлежит: Cameron International Corp

A torsion measurement device is disclosed. In one embodiment, the device includes a component having a marked surface and an optical sensor. The marked component and the optical sensor may be attached to a tube or other elongate member and positioned to enable the optical sensor to measure angular deflection of the tube from rotation of the marked component with respect to the optical sensor. The angular deflection may be combined with other data to determine applied torque and torsional stress on the tube or other elongate member. Additional systems, devices, and methods are also disclosed.

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Номер записи: 66
26-09-2013 дата публикации

APPARATUS FOR QUANTIFYING UNKNOWN STRESS AND RESIDUAL STRESS OF A MATERIAL AND METHOD THEREOF

Номер: US20130250277A1
Автор: Chen Wei-Ren, Huang Chi-Hung, LAI Guan-Ting, SUNG Po-Chi, Wang Wei-Chung
Принадлежит: National Tsing Hua University

An apparatus for quantifying unknown stress and residual stress of a material to be tested, the material being a birefringent or temporary birefringent material, which includes a light source, a polarizer in front of the light source for converting a light beam from the light source into a beam with linear polarization, a first quarter-wave plate in front of the polarizer for generating circular polarization, a standard material, a second quarter-wave plate, an analyzer, a loading unit, a spectrometer for obtaining transmissivity spectrum of the standard material under the wavelength of the light source and a detecting module connected to the spectrometer to have the transmissivity spectrum of the material to be tested and consequently a stress quantifying formula for the standard material. 1. An apparatus for quantifying unknown stress and residual stress of a material , the material being a birefringent or temporary birefringent material , the apparatus comprising:a light source for generating light beam of a single wavelength or multiple wavelengths;a polarizer in front of the light source for converting a light beam from the light source into a beam with linear polarization;a first quarter-wave plate in front of the polarizer for generating circular polarization;a standard material the same as that of the material to be tested and being free of unknown stress and residual stress, which is mounted or located in front of the first quarter-wavelength plate with a face thereof facing a face of the first quarter-wave plate;a second quarter-wave plate in front of the standard material with its one face facing a face of the standard material;an analyzer in front of the second quarter-wave plate with its one face facing a face of the second quarter-wave plate;a loading unit for loading the standard material;a spectrometer in front of the analyzer for recording intensity of the light passing through the analyzer and obtaining transmissivity spectrum of the standard ...

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Номер записи: 67
03-10-2013 дата публикации

Sensor assembly and medical device incorporating same

Номер: US20130255400A1
Автор: Afshin Bazargan, Ian B. Hanson, Pablo Vazquez, Paul F. Bente, IV
Принадлежит: Medtronic Minimed Inc

Apparatus are provided for sensor assemblies and related medical devices. An embodiment of a sensor assembly includes a beam and a sensing element disposed on the beam. The sensor assembly also includes a structure to prevent deflection of the beam when a force applied to the sensor assembly is greater than a threshold value.

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Номер записи: 68
17-10-2013 дата публикации

Load Cell Including Excess Load Preventing Mechanism

Номер: US20130269449A1
Автор: Makabe Makoto, NAGAI Takayuki
Принадлежит: YAMATO SCALE CO., LTD.

A load cell includes a horizontal upper beam; a lower beam extending parallel with the upper beam; a fastening section connecting one end of the upper beam to the lower beam and is fastened to a stationary object; a movable section which connects the upper beam and the lower beam and is displaced vertically by a load applied to the movable section 5; and a cylindrical stopper having a circular cross-section. The fastening section has a first circular hole. The movable section has a second circular hole concentric with the first circular hole. A base end portion of the stopper is fastened to the first circular hole and a tip of the stopper member 7 is located at an inner side of the second circular hole such that there is a space of a specified width between the tip and an inner surface of the second hole. 1. A load cell which is Roberval-type load cell , comprising:an upper beam section extending horizontally;a lower beam section extending below the upper beam section in parallel with the upper beam section;a fastening section which connects one end of the upper beam section and one end of the lower beam section to each other and is fastened to a stationary object;a movable section which connects the other end of the upper beam section and the other end of the lower beam section to each other and is displaced vertically by a load applied vertically to the movable section; anda cylindrical stopper member having a circular cross-section;wherein the fastening section has a first circular hole having a circular cross-section;wherein the movable section has a second circular hole having a circular cross-section and being concentric with the first circular hole; andwherein a base end portion of the stopper member is fitted into and fastened to the first circular hole and a tip end portion of the stopper member is located at an inner side of the second circular hole such that there is a space of a specified width between the tip end portion and an inner surface of the ...

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Номер записи: 69
24-10-2013 дата публикации

HEAD IMPACT EVENT REPORTING SYSTEM

Номер: US20130282308A1
Автор: Kuznetsova Marina, Mack Christoph, Votaw Scott
Принадлежит:

Head impact event evaluation systems and methods. A system and computer implemented method for event detection includes collecting sensor data transmitted from one or more sensor devices being attached to one or more users. The sensors transmit data when an event results in sensor data above a threshold value. At least one force is determined based on the collected sensor data. At least one force vector is determined based on a location of one or more sensors associated with the sensor devices and the determined at least one of the linear or rotational force. At least a portion of a human form is displayed with the determined force vector based on the determined at least on force vector on a display. 1. A computer implemented method for event detection comprising:collecting sensor data detected by a sensor attached to a head of a user, the sensor monitoring an impact parameter associated with an impact event;determining an impact vector as a function of the impact parameter associated with the impact event; andtranslating the impact vector from a location of the sensor to an associated vector experienced by at least one other location in the head of the user.2. The method of claim 1 , further comprising determining an assessment score for the associated vector.3. The method of claim 1 , wherein determining the impact vector further comprises associating the impact vector with a center of mass of a brain of the user.4. The method of claim 3 , wherein determining an impact vector comprises determining a direction and magnitude of movement of the head of the user as a function of the impact event.5. The method of claim 2 , further comprising providing an alert when the assessment score is above an assessment threshold.6. The method of claim 5 , wherein providing an alert comprises at least one of an audible or visual signal.7. A system configured to analyze impact event data claim 5 , comprising:a sensor configured to be worn on a head of a user, the sensor being ...

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Номер записи: 70
31-10-2013 дата публикации

Strain Sensor Apparatus and Method of Strain Sensing

Номер: US20130286378A1
Автор: Dutoit Dana
Принадлежит: OMNISENS SA

According to the present invention there is provided a strain sensor apparatus comprising, two or more strain sensors each of which is capable of measuring strain and each of which is configured such that it can be arranged to cooperate with a structure to be monitored so that strain in the structure can be detected by a strain sensor, and one or more position references which is/are arranged in a predetermined position relative to the two or more strain sensors and wherein the one or more position references are each configured such that they are suitable for cooperating with a measuring means; one or more measuring means which is configured to cooperate with the one or more position references so that the angular orientation of the one or more position references can be determined. There is further provided a corresponding method for sensing strain in a structure. 1. A strain sensor apparatus comprising ,two or more strain sensors each of which is capable of measuring strain and each of which is configured such that it can be arranged to cooperate with an elongate tubular structure to be monitored along the length of the elongate tubular structure, so that strain in the elongate tubular structure can be detected by a strain sensor, andone or more position references, which is/are arranged, along the length of the elongate tubular structure, in a predetermined position relative to the two or more strain sensors and wherein the one or more position references are each configured such that they are suitable for cooperating with a measuring means;one or more measuring means which comprises a means for measuring angular orientation, wherein the one or more measuring means is configured to cooperate with the one or more position references so that the angular orientation of the one or more position references can be determined.2. The strain sensor apparatus according to wherein each of the two or more strain sensors comprise at least one optical fiber which is arranged ...

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Номер записи: 71
07-11-2013 дата публикации

DETECTION OF FOREIGN OBJECT IN PROXIMTY OF SURGICAL END-EFFECTOR

Номер: US20130293868A1
Автор: CHAN Raymond, Manzke Robert, Popovic Aleksandra, Radulescu Emil George
Принадлежит: KONINKLIJKE PHILIPS N.V.

An optical detection tool employs a surgical end-effector () and an optical fiber (). In operation, the surgical end-effector () is navigated within an anatomical region relative to an object foreign to the anatomical region and the optical fiber () generates an encoded optical signal indicative of a strain measurement profile of the optical fiber () as the surgical end-effector () is navigated within the anatomical region. The optical fiber () has a detection segment in a defined spatial relationship with the surgical end-effector (). The strain measurement profile represents a normal profile in the absence of any measurable contact of the foreign object with the detection segment of the optical fiber (). Conversely, the strain measurement profile represents an abnormal profile in response to a measurable contact of the foreign object with the detection segment of the optical fiber (). 1. An optical fiber detection tool , comprising:a surgical end-effector operable to be navigated within an anatomical region relative to an object foreign to the anatomical region; andan optical fiber operable to generate an encoded optical signal indicative of a strain measurement profile of the optical fiber as the surgical end-effector is navigated within the anatomical region,wherein the optical fiber includes a foreign object detection segment in a defined spatial relationship with the surgical end-effector to facilitate a contact between the fiber object detection segment and the foreign object responsive to the foreign object being in proximity of the surgical end-effector,wherein the strain measurement profile represents a normal profile in the absence of any measurable contact of the foreign object with the foreign object detection segment of the optical fiber, andwherein the strain measurement profile represents an abnormal profile in response to a measurable contact of the foreign object with the foreign object detection segment of the optical fiber.2. The optical fiber ...

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Номер записи: 72
14-11-2013 дата публикации

PASSIVE ELECTROMAGNETIC WAVE REFLECTOR FOR MEASURING LOCAL STRAIN IN A STRUCTURE ON THE EARTH'S SURFACE

Номер: US20130298689A1
Автор: Loreaux Philippe, Quin Guillaume
Принадлежит: Commissariat A L'Energie Atomique Et Aux Energies Alternatives

A passive electromagnetic wave reflector for measuring, from a satellite, local strain in a structure located on the Earth's surface, characterized in that it comprises a substantially vertical, relative to the Earth's surface, planar element, the planar element having a rectilinear side making contact with the structure the strain of which is to be measured, said element being aligned with the axis of the Earth's poles, and, fixed to the planar element, a mechanical structure having a first part located on a first side of the planar element and a second part located on a second side of the planar element, opposite the first side, the mechanical structure forming a rectilinear edge that, in combination with the rectilinear side of the planar element, forms a means for holding in position the reflector on the structure the strain of which is to be measured. 1. Passive electromagnetic wave reflector for measuring local strain in a structure located on the Earth's surface , the reflector being able to reflect , to a satellite in orbit around the Earth , an electromagnetic wave that it receives from said satellite , characterised in that it comprises:{'b': 1', '1, "plate (P) substantially vertical relative to the Earth's surface, said plate having a rectilinear side (a) making contact with the structure located on the Earth's surface and aligned with the axis of the Earth's poles, and"}{'b': 1', '2', '3', '2', '3', '3', '3', '2', '3', '1', '3', '3', '1, "fixed to the plate (P), substantially vertical relative to the Earth's surface, a mechanical structure (P, P) having a first plate (P) and a second plate (P) inserted in the plate substantially perpendicular to the Earth's surface and having, each, a rectilinear side (a) spread on either side of the plate substantially perpendicular to the Earth's surface, the rectilinear side of the first plate being in contact with the rectilinear side of the second plate to form a rectilinear edge (a) of the mechanical structure ...

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Номер записи: 73
14-11-2013 дата публикации

Pressure isolated fiber optic torque sensor

Номер: US20130298697A1
Автор: Delatorre Leroy C.
Принадлежит:

Fabry-Perot and Bragg grating optical measuring principles are combined with a torsional stress sensing mechanism that converts torque applied in one fluid environment to force exerted in a second environment to measure extreme environmental parameters such as pressure in a petroleum producing borehole. 1. A torque measuring instrument comprising:torque transfer means for transmitting torsional force about a torque axis;first support means secured to said torque transfer means for angular displacement about said axis by transmitted torque;second support means adjacent to said first support means;first linkage means between said first and second support means having a first displacement segment that translates in a first direction parallel with said axis upon angular displacement of said first support means relative to said second support means;second linkage means between said first and second support means having a second displacement segment that translates in a second direction substantially parallel with said axis upon angular displacement of said first support means, said second direction being substantially opposite of said first direction;first sensor support means secured to said first displacement segment;second sensor support means secured to said second displacement segment;sensor means disposed between said first and second sensor support means to detect spatial displacements between said first and second sensor supports substantially parallel with said axis;means for determining a value of said spatial displacement, and,means for relating the value of said spatial displacement to the value of transmitted torque.2. A torque measuring instrument as described by wherein a value of said spatial displacement is determined by optical means.3. A torque measuring instrument as described by wherein said means for determining a value of said displacement comprises a Fabry-Perot etalon.4. A torque measuring instrument as described by wherein said means for ...

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Номер записи: 74
14-11-2013 дата публикации

Pressure Transducer Utilizing Non-Lead Containing Frit

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

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

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Номер записи: 75
14-11-2013 дата публикации

TEMPLATES FOR OPTICAL SHAPE SENSING CALIBRATION DURING CLINICAL USE

Номер: US20130301031A1
Автор: "T Hooft Gert Wim", CHAN Raymond, Desjardins Adrien Emmanuel, Manzke Robert, Ramachandran Bharat, von Busch Heinrich
Принадлежит: KONINKLIJKE PHILIPS N.V.

A medical device calibration apparatus, system and method include a calibration template () configured to position an optical shape sensing enabled interventional instrument (). A set geometric configuration () is formed in or on the template to maintain the instrument in a set geometric configuration within an environment where the instrument is to be deployed. When the instrument is placed in the set geometric configuration, the instrument is calibrated for a medical procedure. 1. A calibration system for a medical instrument , comprising:{'b': 140', '102, 'a calibration template () configured to position an optical shape sensing enabled interventional instrument () and set the instrument in a set geometric configuration within an environment where the instrument is to be deployed;'}{'b': '108', 'an optical interrogation module () configured to collect optical feedback from the instrument in the calibration template; and'}{'b': '142', 'a calibration program () stored in memory and executed by a processor to compare the optical feedback with calibration data.'}2. (canceled)3140202206. The system as recited in claim 1 , wherein the calibration template () includes a sheet () having one of more calibration patterns () to provide the set geometric configuration of the instrument claim 1 , the one of more calibration patterns including a groove for securing the instrument in the set geometric configuration.4140202206214. The system as recited in claim 1 , wherein the calibration template () includes a sheet () having one of more calibration patterns () to provide the set geometric configuration of the instrument claim 1 , the one of more calibration patterns including a fastening mechanism () for securing the instrument in the set geometric configuration.5. (canceled)6140302. The system as recited in claim 1 , wherein the calibration template () includes a three-dimensional mechanism () to provide the set geometric configuration of the instrument claim 1 , the three- ...

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Номер записи: 76
21-11-2013 дата публикации

Transducer acceleration compensation using a delay to match phase characteristics

Номер: US20130305840A1
Автор: Saari Byron, Schletty Mark
Принадлежит: MTS Systems Corporation

A method and system for correcting for the inertial error of a transducer as a function of frequency by applying a delay to a leading signal of the transducer to provide phase compensation. 1. A system comprising:a transducer;a sensor operably coupled to the transducer, the sensor providing a signal that is directly or indirectly related to acceleration; anda compensator connected to receive at least one signal based on at least one of the output signals from the transducer and the sensor, the compensator including a delay module to delay the at least one signal in order to provide phase compensation.2. The system of wherein the transducer comprises a force transducer.3. The system of wherein the transducer comprises a pressure transducer.4. The system of wherein the transducer comprises a torque transducer.5. The system of wherein the compensator provides both gain and phase compensation.6. The system of wherein the compensator provides phase compensation based on another factor in addition to frequency.7. The system of wherein the another factor is applied external load.8. The system of wherein the compensator provides phase compensation based on another factor in addition to frequency.9. The system of wherein the another factor is applied external load.10. The system of wherein the compensator provides phase compensation based on another factor in addition to frequency.11. The system of wherein the another factor is applied external load.12. The system of wherein the delay is configured for a selected range of frequencies.13. The system of wherein the delay is configured for frequencies less than a first modal frequency.14. The system of wherein the sensor comprises an accelerometer.15. The system of wherein the sensor comprises a displacement sensor.16. A method of providing acceleration compensation to a transducer comprising:applying excitation motion to a transducer and a sensor and obtaining response signals therefrom, wherein the sensor is operably coupled ...

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Номер записи: 77
21-11-2013 дата публикации

SIDE-HOLE CANE WAVEGUIDE SENSOR

Номер: US20130308895A1
Автор: III John L., Kersey Alan D., Maida
Принадлежит:

A side-hole optical cane for measuring pressure and/or temperature is disclosed. The side-hole cane has a light guiding core containing a sensor and a cladding containing symmetrical side-holes extending substantially parallel to the core. The side-holes cause an asymmetric stress across the core of the sensor creating a birefringent sensor. The sensor, preferably a Bragg grating, reflects a first and second wavelength each associated with orthogonal polarization vectors, wherein the degree of separation between the two is proportional to the pressure exerted on the core. The side-hole cane structure self-compensates and is insensitive to temperature variations when used as a pressure sensor, because temperature induces an equal shift in both the first and second wavelengths. Furthermore, the magnitude of these shifts can be monitored to deduce temperature, hence providing the side-hole cane additional temperature sensing capability that is unaffected by pressure. Additionally, the side-hole cane can be used to measure a differential pressure between a first pressure ported to the side-holes and a second external pressure. 1. A method for measuring an external pressure , comprising: [ a core comprising a sensing element; and', 'a cladding surrounding the core, the cladding comprising an outside surface and at least two side holes parallel to the core; and, 'a first optical cane waveguide having first and second ends, comprising, 'a second optical cane waveguide disposed adjacent the first end of the first optical cane waveguide;, 'providing an optical waveguide structure comprisingproviding a first pressure to the side holes;providing the external pressure to the outside surface of the first optical cane waveguide;interrogating the sensing element with an incident light to create reflected or transmitted light; andassessing the reflected or transmitted light to determine the external pressure relative to the first pressure.2. The method of claim 1 , wherein the ...

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Номер записи: 78
28-11-2013 дата публикации

DEVICE AND METHOD FOR TESTING PULLING FORCE

Номер: US20130312534A1
Автор: Chen Ching-Feng, Chen Chung-Yuan, CHEN KE, CHEN LONG-FONG, CHENG LIN-HUI, LI CAI-JIE, LI SHI-BIN, YANG GUO-JUN
Принадлежит:

An exemplary embodiment of a testing device for testing a pulling force includes a shell having a test platform, a load sensor mechanism, a control system, a drive and transmission mechanism and a material clamping mechanism. Two portions of a test object are clasped by the load sensor mechanism and the clamp. When the load sensor mechanism is driven to move further away from the clamp via the drive and transmission mechanism, a pulling force perpendicular to the test platform is generated between the two portions of the test object. The load sensor mechanism detects the pulling force and feeds back the detection to the control system. 1. A testing device for testing a pulling force , comprising:a shell comprising a test platform;a load sensor mechanism;a control system configured to receive operation signals from a tester and send a control signal;a drive and transmission mechanism configured to receive the control signal and drive the load sensor mechanism to move upward or move downward along a first direction perpendicular to the test platform; anda material clamping mechanism comprising a positioning device arranged on the test platform and a clamp, the positioning device configured to adjust the location of the clamp to align with the load sensor mechanism;wherein two portions of a test object are clasped by the load sensor mechanism and the clamp, respectively, when the load sensor mechanism is driven to move upward along the first direction, the load sensor mechanism and the clamp move further away from each other, a pulling force perpendicular to the test platform is generated between the two portions of the test object, the load sensor mechanism detects the pulling force and feeds back the detection to the control system.2. The testing device of claim 1 , wherein the load sensor mechanism comprises a load sensor device and a clasp mechanism for clasping the test object claim 1 , the load sensor device comprises a load sensor and an electric resistance ...

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Номер записи: 79
05-12-2013 дата публикации

Force sensor

Номер: US20130319135A1
Автор: Kazuhiro Okada, Nobuhisa Nishioki
Принадлежит: Tri Force Management Corp

With the Z-axis given as a central axis, on an XY-plane, arranged are a rigid force receiving ring, a flexible detection ring inside thereof, and a cylindrical fixed assistant body further inside thereof. Two fixing points on the detection ring are fixed to a supporting substrate, and two exertion points are connected to the force receiving ring via connection members. When force and moment are exerted on the force receiving ring, with the supporting substrate fixed, the detection ring undergoes elastic deformation. Capacitance elements or others are used to measure distances between measurement points and the fixed assistant body and distances between the measurement points and the supporting substrate. Elastic deformation of the detection ring is recognized for mode and magnitude, thereby detecting a direction and magnitude of force or moment which is exerted.

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Номер записи: 80
05-12-2013 дата публикации

TENSION MONITORING ARRANGEMENT AND METHOD

Номер: US20130319136A1
Автор: Chau Albert W., Mercer John E., Tsang Charles Yu Yat, Zeller Rudolf
Принадлежит: Merlin Technology Inc.

Tension monitoring is described using a sensor which may exhibit an offset for which compensation may be provided to produce a zero voltage amplified output or to increase dynamic range. An arrangement determines whether a power reset is responsive to a battery bounce such that an initially-measured system start-up parameter can be retained. The start-up parameter is automatically saved at start-up if the power reset is responsive to a start-up from a shut-down condition. The start-up parameter may be a zero tension amplified output responsive to the sensor offset at zero tension. Protection of a tension data set is provided such that no opportunity for altering the data set is presented prior to transfer of the data set. A housing configuration forms part of an electrical power circuit for providing electrical power to an electronics package from a battery. 1. In a system for installing an underground utility by retraction that is applied to a leading end of the utility to draw the utility through the ground such that the utility is subjected to a tension force during an installation time period , a tension monitoring apparatus , comprising:a sensor for inground sensing of the tension force that is applied to the leading end of the utility to produce a sensor signal during said installation time period;a processor configured at least for storing an original digital data set responsive to said sensor signal during the installation time period and for copying the original data set to a different location to create a copied data set after said installation time period; anda user interface, in communication with the processor, to permit a user to instruct the processor to erase the original data set only after the original data set has been copied to the different location.2. The apparatus of wherein said processor is configured for creating said original data set in a way which provides for detection of any alteration of the copied data set at said different location. ...

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Номер записи: 81
19-12-2013 дата публикации

Device, method and system for add on attachment of applied force strain sensor onto exercise equipment

Номер: US20130333489A1
Автор: Eliyahu DAVID, Ofir GAL-ON
Принадлежит: WATTEAM LTD

A device, method, and system that allows the easy add on attachment of an applied-power sensor, assuring precise measurements over time, even in vibrating environments such as exercise environments. The device possesses structural qualities such that tightening the wrapping latch around a measured object/part presses a loaded spring between the object/part and the sensor, achieving and maintaining sufficient and constant contact, thus allowing continuously precise measuring. The device also includes a transmitter to transmit the measured data to an external data processing device and may include a processor to process the data before transmitting.

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Номер записи: 82
19-12-2013 дата публикации

System And Method For Post-Tensioned Tendon Monitoring

Номер: US20130335727A1
Автор: WALL James
Принадлежит: ELECTRIC POWER RESEARCH INSTITUTE, INC.

A system and method for post-tensioned tendon monitoring includes at least one optical sensor arranged in monitoring proximity to a post-tensioned tendon, a test instrument in communication with the optical sensor, and a processor capable of managing operation of the test instrument, a storage device and a display. The system and method further include a database adapted to contain sensor baseline information and sensor measurement data. The test instrument is capable of sending a first wavelength to the optical sensor and receiving a second wavelength from the optical sensor, wherein at least one of the instrument or the processor is configured to analyze the second wavelength and output sensor measurement data for storage in the database. The processor is configured to calculate an amount of tensile loading which exists in the post-tensioned tendon, based on the sensor measurement data and the sensor baseline data, and to provide an output. 1. A system for post-tensioned tendon monitoring comprising:at least one optical sensor arranged in monitoring proximity to a post-tensioned tendon;a test instrument in communication with the at least one optical sensor; the test instrument,', 'a storage device associated with the processor, and', 'a display in communication with the processor;, 'a processor capable of managing operation ofa database stored on the storage device, wherein the database is adapted to contain sensor baseline information and sensor measurement data;wherein the test instrument is capable of sending a first wavelength to the at least one optical sensor and receiving a second wavelength from the at least one optical sensor, wherein at least one of the instrument or the processor is configured to analyze the second wavelength and output sensor measurement data for storage in the database; andwherein the processor is adapted to access the database and configured to calculate an amount of tensile loading which exists in the post-tensioned tendon, based on ...

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Номер записи: 83
26-12-2013 дата публикации

STRAIN GAUGE USING TWO-DIMENSIONAL MATERIALS

Номер: US20130340533A1
Автор: Hofmann Mario, Kong Jing
Принадлежит: Massachusetts Institute of Technology

Strain gauge. The gauge includes a substrate and a thin film of overlapping, two-dimensional flakes deposited on the substrate. Structure responsive to conductance across the film is provided whereby a strain induced change in overlap area between neighboring flakes results in a change in conductance across the film. In a preferred embodiment, the two-dimensional flakes are graphene. 1. Strain gauge comprising:a substrate;a thin film of overlapping, two-dimensional flakes deposited on the substrate; andstructure responsive to conductance across the film, whereby a strain induced change in overlap area between neighboring flakes results in a change in conductance across the film.2. The strain gauge of wherein the two-dimensional flakes are graphene.3. The strain gauge of wherein the film's sensitivity of conductance to strain is tuned by varying the morphology of the film.4. The strain gauge of wherein the morphology includes film thickness.5. The strain gauge of wherein the morphology includes flake size.6. The strain gauge of wherein the substrate is non-electrically conductive.7. The strain gauge of wherein the substrate is plastic claim 6 , glass or ceramic.8. The strain gauge of wherein the film is deposited by airbrush deposition from a graphene flake solution.9. The strain gauge of wherein spacing between flakes is smaller than flake size.10. The strain gauge of wherein the morphology is selected to produce at least a ten-fold increase in strain gauge sensitivity compared to prior art metal thin film gauges. This application claims priority to provisional patent application Ser. No. 61/563,933 filed on Nov. 28, 2011, the contents of which are incorporated herein by reference.This invention was made with government support under Grant No. N00014-09-1-1063 awarded by the Office of Naval Research. The government has certain rights in this invention.This invention relates to strain gauges and more particularly to a strain gauge made of overlapping flakes of two- ...

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Номер записи: 84
26-12-2013 дата публикации

FORCE SENSOR INCLUDING SENSOR PLATE WITH LOCAL DIFFERENCES IN STIFFNESS

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

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

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Номер записи: 85
26-12-2013 дата публикации

System and method for monitoring a component in production and/or in service

Номер: US20130341497A1
Автор: Bockenheimer Clemens, BULLINGER Oliver, Zahlen Pierre C., Zuardy Ichwan M.
Принадлежит:

A system for monitoring a fiber-reinforced composite component in production or in service. The system includes a composite component having reinforcing fibers which are encompassed by a matrix material; at least one optical fiber arranged to extend in a continuous path over a monitoring area of the composite component for contact with the matrix material; a signal generator configured to transmit an optical signal along the at least one optical fiber; and a detector device configured to detect scattering, and in particular backscattering, of the optical signal transmitted along the at least one optical fiber. 1. A system for monitoring a component in production and/or in service , comprising:a component comprising reinforcing fibers which are encompassed by a matrix material;at least one optical fiber arranged to extend in a continuous path over a monitoring area of the composite component for contact with the matrix material;a signal generator configured to transmit an optical signal along the at least one optical fiber; anda detector device configured to detect scattering of the optical signal transmitted along the at least one optical fiber.2. The system according to claim 1 , wherein the scattering that the detector device is configured to detect is backscattering.3. The system according to claim 1 , wherein the detector device is configured to detect one or more of Rayleigh scattering claim 1 , Raman scattering claim 1 , and Brillouin scattering of the optical signal transmitted along the optical fiber claim 1 , and wherein the system is configured to evaluate the scattering detected by the detector device.4. The system according to claim 1 , wherein the at least one optical fiber is arranged to extend in a serpentine or meandering path over the monitoring area one of adjacent to an outer surface of the composite component and encompassed within the matrix material of the composite component claim 1 , and wherein the at least one optical fiber is connected for ...

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Номер записи: 86
02-01-2014 дата публикации

METHOD AND APPARATUS FOR DETERMINING GEOMETRY DEFORMATION IN ROTATING COMPONENTS

Номер: US20140000380A1
Автор: Bednarz Piotr, Prugarewicz Michal Tomasz, Slowik Slawomir, Tscharner Thomas
Принадлежит:

A method is provided for measuring geometry deformations of a turbine component, rotor groove or blade root. The method includes providing the turbine component, rotor groove or blade root, respectively, with at least one measuring mark; using the at least one mark as a reference point in determining, in a first measurement, a length on the turbine component or rotor groove or blade root, respectively, before placing the turbine into service. The method also includes operating the turbine for a period of time; determining, in a second measurement, the length on the turbine component, rotor groove or blade root, using the at least one measuring mark as a reference point, after said operating period; comparing the measured lengths of the first and second measurements; and determining an amount of creep deformation in the turbine component, rotor groove or blade root, respectively, based on a difference between the measured lengths. 114. A method for measuring geometry deformations of a turbine component () , rotor groove or blade root , the method comprising the steps of:{'b': 14', '20, 'providing the turbine component (), or rotor groove or blade root, respectively, with at least one measuring mark ();'}{'b': 20', '1', '2', '14, 'using the at least one measuring mark () as a reference point in determining, in a first measurement, a length (L, L) on said turbine component () or rotor groove or blade root, respectively, prior to the turbine being placed into service;'}operating the turbine for a period of time;{'b': 1', '2', '14', '20, 'determining, in a second measurement, said length (L, L) on said turbine component () or rotor groove or blade root, respectively, using again said at least one measuring mark () as a reference point, after said operating period;'}{'b': 1', '2, 'comparing the measured lengths (L, L) of said first and second measurements; and'}{'b': '14', 'determining an amount of creep deformation in said turbine component () or rotor groove or blade ...

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Номер записи: 87
02-01-2014 дата публикации

DIFFERENTIAL DEFLECTION MEASUREMENT IN STRUCTURAL MEMBERS

Номер: US20140000387A1
Автор: Smith David Edward
Принадлежит: Illinois Tool Works, Inc.

The invention relates to a deflection measuring device for measuring differential vertical deflection between first and second discrete points in response to the application of force to the device, the device comprising a transducer attachable to a structural member and comprising at least one strain responsive element, the transducer being operable to resolve any force applied thereto into a differential vertical deflection between a first point and a second point on the transducer when a load is applied thereto; the strain responsive element being operable to measure the differential vertical deflection in the transducer. 1. A deflection measuring device for measuring differential vertical deflection between first and second discrete points in response to the application of force to the device , the device comprising a transducer attachable to a structural member and comprising at least one strain responsive element , the transducer being operable to resolve any force applied thereto into a differential vertical deflection between a first point and a second point on the transducer when a load is applied thereto; the strain responsive element being operable to measure the differential vertical deflection in the transducer.2. A deflection measuring device according to claim 1 , wherein the transducer is unconstrained against shear claim 1 , bending and torsional deflection.3. A deflection measuring device according to claim 1 , wherein the transducer comprises a first loading member and a second loading member coupled together and capable of relative vertical and torsional deflection with respect to one another claim 1 , a first flexure element and a second flexure element coupled to the first and the second loading member respectively and connected to one another by a connecting portion and being arranged to deform in response to the relative vertical deflection between the first and the second loading members.4. A deflection measuring device according to claim 3 , ...

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Номер записи: 88
02-01-2014 дата публикации

Clamping Force Sensor Assembly For Monitoring Transformer Degradation

Номер: US20140002222A1
Автор: David J. Woodcock
Принадлежит: Weidmann Electrical Technology Inc

A clamping force sensor assembly for a transformer includes at least one sensor disposed within a casing. The design and configuration of the sensor assembly is such that it accurately measures clamping force values placed on the windings, without adversely impacting the operation of the transformer and with the ability to continue operating under electrical and thermal changes within the transformer. The sensor assembly can include loading members that distribute the pressure evenly over the casing that contains the sensor. The output of the sensor can indicate to an operator the extent of pressure changes experienced by the transformer windings. The output can be coupled with a process by which the damage to or the possibility of failure of the transformer is readily evaluated.

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Номер записи: 89
02-01-2014 дата публикации

Bridge Safety Monitoring Integrated System with Full Optical Fiber and the Method for Sensing Thereof

Номер: US20140002275A1
Автор: Zheng-Kuan Lee
Принадлежит: NATIONAL APPLIED RESEARCH LABORATORIES

The present invention provides an integrated system of full optical complete bridge safety monitoring with speech warming for smart phones. The Integrated system of full optical complete bridge safety monitoring includes a stabilizing device, optical sensing device and communication device. The basic structure involves cable and optical fiber connecting two ends and joined by heat shrink tubes. A measuring segment is located between two heat shrink tubes. The stabilizing device provides a pre-determined tensile strength to the measuring segment. The optical fiber sensing device detects a response via a Fiber Bragg grating in the optical fiber's measuring segment. When the measuring segment receives a response, it changes from first phase to second phase and creates a signal change from the reflected signals. Signal processing device converts the signal changes to physical parameters. The communication device sends warning signals to users. Warning signals are sent to users' smart phones, to proactively inform the bridge's safety status with speeches.

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Номер записи: 90
09-01-2014 дата публикации

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

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

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

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Номер записи: 91
09-01-2014 дата публикации

CONTROL PANEL COMPRISING RESISTIVE KEYS AND SPACERS

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

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

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Номер записи: 92
23-01-2014 дата публикации

Carbon nanotube temperature and pressure sensors

Номер: US20140020474A1
Автор: David B. Geohegan, Ilia N. Ivanov
Принадлежит: UT Battelle LLC

The present invention, in one embodiment, provides a method of measuring pressure or temperature using a sensor including a sensor element composed of a plurality of carbon nanotubes. In one example, the resistance of the plurality of carbon nanotubes is measured in response to the application of temperature or pressure. The changes in resistance are then recorded and correlated to temperature or pressure. In one embodiment, the present invention provides for independent measurement of pressure or temperature using the sensors disclosed herein.

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Номер записи: 93
30-01-2014 дата публикации

X-RAY STRESS MEASUREMENT METHOD AND APPARATUS

Номер: US20140029726A1
Автор: YASUKAWA Shoichi
Принадлежит:

A sample () is irradiated with X-rays at different incident angles from plural X-ray sources (). Attention is focused on a Debye-ring of each X-ray diffraction emitted conically from the sample in association with incident X-ray from each of the X-ray sources (), and stress in the sample () is determined on the basis of information of X-ray diffraction appearing at an intersection point between the Debye-ring of the X-ray diffraction recorded on an image plate () and an equatorial plane (H) and information of X-ray diffraction appearing in the neighborhood of the intersection point between the Debye-ring and the equatorial plane (H). 1. An X-ray stress measurement method comprising:irradiating a sample with X-rays at a plurality of different incident angles from a plurality of X-ray sources;focusing attention on a Debye-ring of each X-ray diffraction radiated conically from the sample in association with incident X-ray emitted from each of the X-ray sources; anddetermining stress in the sample on the basis of information of X-ray diffraction appearing at an intersection point between the Debye-ring and an equatorial plane containing an optical axis of the incident X-ray emitted from each of the X-ray sources, and information of X-ray diffraction appearing at a point on the Debye-ring other than the intersection point between the Debye-ring and the equatorial plane.2. The X-ray stress measurement method according to claim 1 , wherein X-rays having different wavelengths are emitted from the plurality of X-ray sources to determine a stress gradient in a depth direction of the sample.3. The X-ray stress measurement method according to claim 2 , wherein stress at a desired depth is determined by specifying the wavelengths of the X-rays emitted from the plurality of X-ray sources and setting the incident angles of the X-rays to the sample claim 2 , and the stress gradient in the depth direction of the sample is determined on the basis of a measurement result of stress at ...

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Номер записи: 94
30-01-2014 дата публикации

Method for Mechanical Sensing Utilizing Controlled Current

Номер: US20140032136A1
Автор: Grau Alex, Hendee Charles
Принадлежит: Tactonic Technologies, LLC

A method for sensing. The method includes the steps of transmitting mechanical forces to one or more printed mechanical sensing elements. There is the step of sending prompting signals associated with the mechanical forces to a computer in communication with one or more printed diodes and the one or more printed mechanical sensing elements. There is the step of reconstructing with the computer the mechanical forces that were applied to the one or more printed mechanical sensing elements. An apparatus for sensing. The apparatus includes a computer. The apparatus includes one or more printed electronic diodes and printed mechanical sensing elements connected to the computer, the one or more printed electronic diodes detect mechanical signals applied to the one or more mechanical-sensing elements and that provide corresponding values to the computer. 1. A sensor comprising:one or more printed mechanical sensing elements that detect mechanical forces applied to an element;one or more printed diodes which are in contact with the one or more mechanical sensing elements and which control flow of electrical current to and from the one or more printed mechanical sensing elements; anda computer in communication with the printed mechanical-sensing elements which causes prompting signals to be sent to the one or more printed mechanical sensing elements and which reconstructs data signals received from the one or more printed mechanical-sensing elements through the one or more printed diodes.2. The sensor of wherein the computer is in communication with the one or more printed mechanical-sensing elements by conductive material which causes the prompting signals to be sent to the one or more printed mechanical sensing elements and which reconstructs the data signals received by the conductive material from the one or more printed mechanical-sensing elements through the one or more printed diodes.3. The sensor of wherein the conductive material forms a grid that defines ...

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Номер записи: 95
06-02-2014 дата публикации

Footwear article with pressure sensor

Номер: US20140033572A1
Автор: Aloyse Kirsch, Andreas Steier, Mathias Massing
Принадлежит: IEE International Electronics and Engineering SA

An article of footwear including a pressure sensor arranged in the sole structure, where the sensor includes elongated pressure-sensing cells, each of which has an axis of main extension, each cell having a first and a second carrier film, which are attached to one another by a spacer film having an elongated opening oriented along the axis of main extension, as well as a first and a second electrode on the first and the second carrier film, respectively, where the electrodes are arranged in facing relationship with each other, so that a contact area between them increases with increasing pressure, and an electrically insulating layer is arranged within the opening having a shape such that it locally prevents direct contact between the electrodes where the insulating layer is present and enables the direct contact where it is absent, where the shape is constant or repetitionary along the axis of main extension of the cell.

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Номер записи: 96
06-02-2014 дата публикации

PRESSING ROLLER TESTING APPARATUS FOR PRINTER

Номер: US20140033832A1
Автор: CHEN YEN-TAI, HUANG WEN-HOW
Принадлежит:

A pressing roller testing apparatus for a printer includes a base, a duplexer module positioned on the base, and a resisting module fixed on the base. A paper pressing roller is fixed on the duplexer module. The resisting module includes a rotating axis, a rotating wheel mounted on the rotating axis, a pressure detecting unit mounted on the rotating wheel, a supporting block mounted on the rotating wheel, and a resisting block connected to the pressure detecting unit and the supporting block. A top surface of the resisting block contacts the paper pressing roller. A bottom surface of the resisting block contacts the pressure detecting unit. The rotating axis is rotated and the resisting block resists against the paper pressing roller. The paper pressing roller generates an elastic counterforce on the pressure detecting unit by the resisting block. The pressure detecting unit detects and output value of the counterforce. 1. A pressing roller testing apparatus for a printer comprising:a base;a duplexer module positioned on the base; a paper pressing roller being fixed on the duplexer module; anda resisting module fixed on the base; the resisting module comprising:a rotating axis;a rotating wheel mounted on the rotating axis;a pressure detecting unit mounted on the rotating wheel;a supporting block mounted on the rotating wheel; anda resisting block connected to the pressure detecting unit and the supporting block; wherein a top surface of the resisting block contacts the paper pressing roller; a bottom surface of the resisting block contacts the pressure detecting unit; when the rotating axis is rotated and the resisting block resists against the paper pressing roller, the paper pressing roller generates an elastic counterforce on the pressure detecting unit by the resisting block, and the pressure detecting unit detects and outputs a value of the counterforce.2. The pressing roller testing apparatus of claim 1 , wherein a first slot is defined in the rotating wheel; ...

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Номер записи: 97
20-02-2014 дата публикации

Frame foot loading measurement system using fiber optic sensing technique

Номер: US20140047926A1
Автор: David A. Reed, Evangelos V. Diatzikis, Jonathan R. Anderson
Принадлежит: Siemens Energy Inc

A fiber Bragg grating (FBG) based sensor is used as a strain sensing element to determine frame foot loading of a generator. Three FBGs may be used in tandem to form a basic Frame Foot Loading Module (FFL Module). Two modules are fixed on each vertical support gusset at the corner of the generator frame, with one module on the front of the gusset and a second module on the back of the gusset. Thus, each gusset may be instrumented with six FBG strain gauges or sensors. The gussets are chosen on each of the four corners of the generator. For two-pole generators the first three gussets at each corner may be used and, for four-pole generators the first four gussets may be used.

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Номер записи: 98
27-02-2014 дата публикации

SENSING CABLE

Номер: US20140056553A1
Автор: Cignarale Joe, Hashimoto Yoshio, HERBST Brian, Miyamoto Matsuhiro, STRATTON Craig, Villiger Brett
Принадлежит: AFL TELECOMMUNICATIONS LLC

A sensing cable is provided which includes exposed and/or unexposed optical fibers or wires disposed through the length of the sensing cable. The sensing cable includes a slotted core which is a one-piece integral member having a plurality of channels formed on a perimeter of the slotted core and which extend along a length of the slotted core. The sensing cable includes at least one exposed component which is disposed in a first channel of the plurality of channels and which extends along a length of the first channel. The sensing cable includes at least one unexposed component which is encased by a protective member, and the unexposed component and the protective member are disposed in a second channel of the plurality of channels. The unexposed component and the protective member extend along a length of the second channel. 1. A sensing cable comprising:a slotted core which is a one-piece integral member comprising a plurality of channels formed on a perimeter of the slotted core, wherein the plurality of channels extend along a length of the slotted core.2. The sensing cable of claim 1 , wherein the plurality of channels extend along the length of the slotted core in an arrangement parallel to a longitudinal axis of the slotted core.3. The sensing cable of claim 1 , wherein the plurality of channels extend along the length of the slotted core in a helical arrangement.4. The sensing cable of claim 1 , further comprising a protective layer which encases the slotted core.5. The sensing cable of claim 1 , further comprising an exposed component which is disposed in a first channel of the plurality of channels claim 1 , wherein the exposed component extends along a length of the first channel.6. The sensing cable of claim 5 , further comprising an unexposed component which is encased by a protective member claim 5 , and the unexposed component and the protective member are disposed in a second channel of the plurality of channels claim 5 , wherein the unexposed ...

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Номер записи: 99
06-03-2014 дата публикации

Mount assembly for compression testing of protective articles of apparel

Номер: US20140060202A1
Автор: Jeffrey D. Allison, Jorge E. Carbo, Jr., Martine I.V. Mientjes
Принадлежит: Nike Inc

A mount assembly for compression testing of an article of apparel on a compression testing machine. The machine has a head and a sensor. The mount assembly includes a substantially rigid core member and a resilient member that is supported on and that at least partially covers the cover member. The resilient member is configured to support the article of apparel thereon. The resilient member is configured to resiliently deform in response to a compression applied to the article of apparel from the head of the impact testing machine. As such, the sensor detects an effect of the compression on at least one of the resilient member and the core member.

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Номер записи: 100