公开(公告)号：US20140049273A1

公开(公告)日：2014-02-20

申请号：US13586632

申请日：2012-08-15

Applicant: Marko Rocznik

Inventor： Marko Rocznik

IPC: G01R27/26

CPC classification number: G01R27/2605 ,  G01D5/24 ,  G01L1/144 ,  G01L19/12 ,  G01R27/26

Abstract: A sensor includes a variable capacitor, a fixed capacitor, an inductor, a switch that electrically connects the variable capacitor with the inductor or the fixed capacitor with the inductor, an oscillator that generates a periodic signal, and a controller connected to the switch, the oscillator, and the inductor. The controller operates the switch, identifies a frequency of a first oscillation of the variable capacitor and the inductor based on the periodic signal from the oscillator, identifies a frequency of a second oscillation of the fixed capacitor and the inductor based on the periodic signal from the oscillator, and identifies a capacitance of the variable capacitor based on a ratio of the frequency of the first oscillation to the frequency of the second oscillation.

Abstract translation: 传感器包括可变电容器，固定电容器，电感器，将可变电容器与电感器或固定电容器与电感器电连接的开关，产生周期性信号的振荡器和连接到开关的控制器， 振荡器和电感。 控制器操作开关，基于来自振荡器的周期信号识别可变电容器和电感器的第一振荡的频率，基于来自振荡器的周期信号识别固定电容器和电感器的第二振荡的频率 振荡器，并且基于第一振荡的频率与第二振荡的频率的比率来识别可变电容器的电容。

公开(公告)号：US20130181726A1

公开(公告)日：2013-07-18

申请号：US13813352

申请日：2011-08-01

Applicant: Benoît Viallet ,  Laurence Ressier ,  Jérémie Grisolia ,  Lionel Songeon ,  ERIC Mouchel La Fosse ,  Lukas Czornomaz

Inventor： Benoît Viallet ,  Laurence Ressier ,  Jérémie Grisolia ,  Lionel Songeon ,  ERIC Mouchel La Fosse ,  Lukas Czornomaz

IPC: G01R27/02 ,  G01R27/26

CPC classification number: G06F1/16 ,  G01L1/144 ,  G01L1/146 ,  G01L1/205 ,  G01R27/02 ,  G01R27/2605 ,  G06F3/041 ,  G06F3/0414 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/045 ,  G06F2203/04103 ,  G06F2203/04105

Abstract: A device for detecting and quantifying a force applied on a surface comprising a test specimen, an electrically insulating substrate, a first electrode bound to the substrate, a second electrode, an assembly of conductive or semi-conductive nanoparticles in contact with the two electrodes, and a measurement device. The measurement device provides proportional information with respect to an electrical property of the nanoparticles assembly. The electrical property is measured between the first and second electrode. The test specimen is the nanoparticles assembly itself and the electrical property is sensitive to the distance between the nanoparticles of the assembly. The invention uses the nanoparticles assembly itself as a test specimen and allows a force to be quantified even if the nanoparticles assembly is deposited on a rigid substrate.

Abstract translation: 一种用于检测和量化施加在包括测试样本的表面上的力的装置，电绝缘衬底，与衬底结合的第一电极，第二电极，与两个电极接触的导电或半导体纳米颗粒的组件， 和测量装置。 测量装置提供关于纳米颗粒组件的电性能的比例信息。 在第一和第二电极之间测量电特性。 测试样品是纳米颗粒组件本身，并且电性能对组件的纳米颗粒之间的距离敏感。 本发明使用纳米颗粒组件本身作为测试样品，并且即使将纳米颗粒组件沉积在刚性基材上也允许定量。

公开(公告)号：US20130099789A1

公开(公告)日：2013-04-25

申请号：US13699820

申请日：2011-05-26

Applicant: Mohamed Yahia Benslimane ,  Peter Gravesen

Inventor： Mohamed Yahia Benslimane ,  Peter Gravesen

IPC: G01R33/36

CPC classification number: G01R33/3635 ,  G01L1/144 ,  G01L19/086 ,  G01M5/00

Abstract: A resonance circuit with a variable resonance frequency provided by a variable capacitor having compliant electrodes arranged on a deformable sheet. When the sheet is deformed the capacitance is varied. Further a sensing element comprising the resonance circuit and a sensing system comprising at least one sensing element, a sending unit and a receiving unit. Suitable for mass production. Provides wireless sensing system being cost effective to manufacture. May be used for low cost products, such as toys. May also be used for monitoring displacements in structures, e.g. cracks in wall structures. Further a positions sensitive pressure sensor with pressure sensors arranged on a two-dimensional structure.

Abstract translation: 具有由可变电容器提供的具有可变谐振频率的谐振电路，该可变电容器具有布置在可变形片材上的柔性电极。 当纸张变形时，电容变化。 另外，包括谐振电路和包括至少一个感测元件，发送单元和接收单元的感测系统的感测元件。 适合批量生产。 提供无线传感系统具有成本效益的制造。 可用于低成本产品，如玩具。 也可用于监测结构中的位移，例如 墙体结构裂缝。 还有一种位置敏感的压力传感器，其压力传感器布置在二维结构上。

公开(公告)号：US08427178B2

公开(公告)日：2013-04-23

申请号：US12694052

申请日：2010-01-26

Applicant: Gilbert P. Gianetti

Inventor： Gilbert P. Gianetti

IPC: G01R27/26

CPC classification number: G01R27/26 ,  G01D5/24 ,  G01D5/2417 ,  G01L1/044 ,  G01L1/144

Abstract: A detection circuit for detecting changes in capacitance. The detection circuit includes a tuned ratio circuit and an alternating current (AC) source AC-coupled to the tuned ratio circuit. The tuned ratio circuit includes first and second tuned circuits that are tuned to, or close, to the frequency of the AC source. Output circuitry is coupled between the two tuned circuits. During use as a transducer, an active capacitive transducer is inductively coupled to the first tuned circuit. Changes in the capacitance of the active capacitive transducer cause changes in the tuning of the first tuned circuit. The output circuitry generates an output signal that is a function of the difference between the tunings of the first and second tuned circuits.

Abstract translation: 用于检测电容变化的检测电路。 检测电路包括调谐比电路和交流耦合到调谐比电路的交流（AC）源。 调谐比电路包括调谐到或接近AC电源频率的第一和第二调谐电路。 输出电路耦合在两个调谐电路之间。 在用作换能器期间，有源电容换能器感应耦合到第一调谐电路。 有源电容式换能器的电容变化导致第一调谐电路的调谐变化。 输出电路产生作为第一和第二调谐电路的调谐之间的差异的函数的输出信号。

公开(公告)号：US20130049525A1

公开(公告)日：2013-02-28

申请号：US13220306

申请日：2011-08-29

Applicant: VLADIMIR PETKOV ,  Ganesh Balachandran

Inventor： VLADIMIR PETKOV ,  Ganesh Balachandran

IPC: H02N1/08

CPC classification number: G01P15/125 ,  G01D5/24 ,  G01L1/144 ,  Y10T29/4913

Abstract: A capacitive transducer and a readout circuit for processing a signal from a capacitive transducer. The readout circuit includes a high gain circuit element, two summing amplifiers and two feedback path. The high gain circuit element generates an amplified transducer signal, and the summing amplifiers sum the amplified transducer signal with a positive reference voltage and the negative reference voltage, respectively, to generate a first summation signal and a second summation signal. The feedback paths feed back the summation signals to the transducer. Output circuitry generates an output signal based on the summation signals. The high gain circuit element can be a a switched capacitor integrator. The output circuitry can generates the output signal based on the first and second summation signals.

Abstract translation: 一种用于处理来自电容式换能器的信号的电容式换能器和读出电路。 读出电路包括高增益电路元件，两个求和放大器和两个反馈路径。 高增益电路元件产生放大的换能器信号，并且求和放大器将放大的换能器信号分别与正参考电压和负参考电压相加，以产生第一求和信号和第二求和信号。 反馈路径将求和信号反馈到换能器。 输出电路根据求和信号产生输出信号。 高增益电路元件可以是开关电容器积分器。 输出电路可以基于第一和第二求和信号产生输出信号。

公开(公告)号：US20120326566A1

公开(公告)日：2012-12-27

申请号：US13528838

申请日：2012-06-21

Applicant: MITSUAKI KOYAMA ,  TAKERU MUTOH ,  HIROKI IWAI ,  RYOICHI ICHIKAWA

Inventor： MITSUAKI KOYAMA ,  TAKERU MUTOH ,  HIROKI IWAI ,  RYOICHI ICHIKAWA

IPC: H01L41/047

CPC classification number: G01L1/144 ,  G01L1/162 ,  G01P15/097 ,  G01P15/125

Abstract: In an external force detection apparatus, a crystal plate is cantilevered within a container. Excitation electrodes are formed on the top surface and the bottom surface of the crystal plate. A movable electrode is formed on a distal end on the bottom surface of the crystal plate and is connected to the excitation electrode on the bottom surface via an extraction electrode. A fixed electrode is provided on the bottom of the container to oppose the movable electrode. The excitation electrode on the top surface and the fixed electrode are connected to an oscillating circuit. When an external force acts on the crystal plate to bend it, the capacitance between the movable electrode and the fixed electrode changes, and this capacitance change is captured as a change in the oscillating frequency of the crystal plate.

Abstract translation: 在外力检测装置中，晶体板在容器内是悬臂式的。 激发电极形成在晶体板的顶表面和底表面上。 可动电极形成在晶体板的底面的前端，经由引出电极与底面上的激励电极连接。 在容器的底部设置固定电极以与可动电极相对。 顶表面上的激发电极和固定电极连接到振荡电路。 当外力作用于晶体板以使其弯曲时，可动电极和固定电极之间的电容变化，并且该电容变化被捕获为晶体板的振荡频率的变化。

公开(公告)号：US20080252615A1

公开(公告)日：2008-10-16

申请号：US12100408

申请日：2008-04-10

Applicant: Gary Shipton

Inventor： Gary Shipton

IPC: G06F3/041

CPC classification number: G01L1/144 ,  G01D5/3473 ,  G01D5/34746 ,  G01L1/146 ,  G06F3/03545 ,  G06F3/0383

Abstract: A sensing device is provided for interacting with a substrate. The sensing device has a force sensor for detecting whether the sensing device is interacting with the substrate and an image sensor for sensing coded data disposed on the substrate. The force sensor has a capacitive sensor circuit incorporating a sensor capacitor having a variable capacitance Csen and a reference capacitor relatively arranged so that the capacitive sensor circuit is near saturation when Csen is at a minimum expected value.

Abstract translation: 提供了用于与衬底相互作用的感测装置。 感测装置具有用于检测感测装置是否与衬底相互作用的力传感器和用于感测设置在衬底上的编码数据的图像传感器。 力传感器具有电容式传感器电路，该电容传感器电路结合有具有可变电容Cens的传感器电容器和相对布置的参考电容器，使得当C 处于最低预期值。

公开(公告)号：US20080250864A1

公开(公告)日：2008-10-16

申请号：US12100403

申请日：2008-04-10

Applicant: Gary Shipton

Inventor： Gary Shipton

IPC: G01B7/16

CPC classification number: G01L1/144 ,  G01D5/3473 ,  G01D5/34746 ,  G01L1/146 ,  G06F3/03545 ,  G06F3/0383

Abstract: A force sensor is provided which has a capacitive sensor circuit incorporating a sensor capacitor having variable capacitance Csen arranged so that an output of the capacitive sensor circuit is proportional to 1/Csen.

Abstract translation: 提供了一种力传感器，其具有电容传感器电路，该电容传感器电路包括具有可变电容C传感器的传感器电容器，以使得电容式传感器电路的输出与1 / C 。

公开(公告)号：US20070204692A1

公开(公告)日：2007-09-06

申请号：US11724037

申请日：2007-03-14

Applicant: Kazuhiro Okada

Inventor： Kazuhiro Okada

IPC: G01P15/18

CPC classification number: G01P15/18 ,  B81B3/0021 ,  B81B2201/0235 ,  G01L1/144 ,  G01L5/165 ,  G01L5/167 ,  G01P1/023 ,  G01P15/0802 ,  G01P15/0922 ,  G01P15/105 ,  G01P15/125 ,  G01P2015/084

Abstract: An electrode layer is formed on the upper surface of a first substrate, and a processing for partially removing the substrate is carried out in order to allow the substrate to have flexibility. To the lower surface of the first substrate, a second substrate is connected. Then, by cutting the second substrate, a working body and a pedestal are formed. On the other hand, a groove is formed on a third substrate. An electrode layer is formed on the bottom surface of the groove. The third substrate is connected to the first substrate so that both the electrodes face to each other with a predetermined spacing therebetween. Finally, the first, second and third substrates are cut off every respective unit regions to form independent sensors, respectively. When an acceleration is exerted on the working body, the first substrate bends. As a result, the distance between both the electrodes changes. Thus, an acceleration exerted is detected by changes in an electrostatic capacitance between both the electrodes.

Abstract translation: 在第一基板的上表面上形成电极层，进行部分除去基板的处理，以使基板具有挠性。 连接到第一基板的下表面，连接第二基板。 然后，通过切割第二基板，形成工作体和基座。 另一方面，在第三基板上形成槽。 在槽的底面上形成电极层。 第三基板连接到第一基板，使得两个电极以彼此之间的预定间隔彼此面对。 最后，第一，第二和第三基板分别切断各个单元区域以分别形成独立的传感器。 当对工作体施加加速度时，第一基板弯曲。 结果，两个电极之间的距离变化。 因此，通过两个电极之间的静电电容的变化来检测施加的加速度。

公开(公告)号：US20060049836A1

公开(公告)日：2006-03-09

申请号：US10541424

申请日：2003-01-06

Applicant: Hideo Morimoto ,  Tomohiro Agaya

Inventor： Hideo Morimoto ,  Tomohiro Agaya

IPC: G01R27/26

CPC classification number: G06F3/0338 ,  G01L1/144 ,  G01L5/165

Abstract: Capacitance element electrodes (E1 to E5) and a grounded reference electrode (E0) are formed on a substrate (20). A displacement electrode (40) that is Z-axially displaced in accordance with a Z-axial movement of a detective member (30) externally operated, is disposed so as to be opposed to the above electrodes (E0 to E5). The displacement electrode (40) cooperates with the reference electrode (E0) and the capacitance element electrodes (E1 to E5) to form capacitance elements (C0 to C5), respectively. Each of the capacitance elements (C1 to C5) is connected to the capacitance element (C0) in series in relation to an externally input signal. Changes in the capacitance values of the capacitance elements (C1 to C5) when the detective member (30) is moved, is detected by a signal processing circuit having hysteretic characteristics. Thereby, the displacement of the detective member (30) is detected.

Abstract translation: 电容元件电极（E 1〜E 5）和接地参考电极（E 0）形成在基板（20）上。 设置与外部操作的检测部件（30）的Z轴方向移动Z位移的位移电极（40），以与上述电极（E 0〜E 5）相对。 位移电极（40）与参考电极（E 0）和电容元件电极（E 1〜E 5）配合，分别形成电容元件（C 0〜C 5）。 每个电容元件（C 1至C 5）相对于外部输入信号串联连接到电容元件（C 0）。 通过具有滞后特性的信号处理电路来检测检测构件（30）移动时的电容元件（C 1〜C 5）的电容值的变化。 由此，检测出检测部件（30）的位移。