公开(公告)号：US08854062B2

公开(公告)日：2014-10-07

申请号：US13220306

申请日：2011-08-29

Applicant: Vladimir Petkov ,  Ganesh Balachandran

Inventor： Vladimir Petkov ,  Ganesh Balachandran

IPC: G01R27/26 ,  G01P15/125 ,  G01D5/24 ,  G01L1/14

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：US20140165742A1

公开(公告)日：2014-06-19

申请号：US13713278

申请日：2012-12-13

Applicant: RESEARCH IN MOTION LIMITED

Inventor： Andrew Ashraf FERGUSSON ,  Iouri Petrovitch BESPERSTOV

IPC: G01L1/14

CPC classification number: G01L1/144 ,  G06F3/03545 ,  G06F3/044 ,  G06F2203/04105

Abstract: The present disclosure provides a method and apparatus for a capacitive force sensor utilizing a magnetic spring. The force is applied across a body and a moveable element that are coupled by the magnetic spring. The moveable element is configured to vary the capacitance of a variable capacitor. A sensing circuit, electrically coupled to the variable capacitor, provides a force signal characteristic of the applied force. In application to a stylus pointing device, the moveable element is coupled to a moveable tip of the stylus. The force signal, which is characteristic of the force applied to the tip of the stylus, may be used to control an application executed on a host electronic device.

Abstract translation: 本公开提供了一种利用磁性弹簧的电容式力传感器的方法和装置。 力被施加在通过磁性弹簧联接的主体和可移动元件上。 可移动元件被配置为改变可变电容器的电容。 电耦合到可变电容器的感测电路提供施加力的特征的力信号。 在应用于触针指示装置时，可移动元件耦合到触针的可移动尖端。 施加到触针尖端的力的特征的力信号可以用于控制在主机电子设备上执行的应用。

公开(公告)号：US20140076066A1

公开(公告)日：2014-03-20

申请号：US13622630

申请日：2012-09-19

Applicant: Richard H. Harrington ,  Michael G. Leydet

Inventor： Richard H. Harrington ,  Michael G. Leydet

IPC: G01L1/14

CPC classification number: G01L1/142 ,  G01L1/144 ,  G01L1/146 ,  G01L5/165

Abstract: A multicapacitor sensor system facilitates the measurement of applied shear and moment forces. In one disclosed configuration, moments may be detectable in x, y and z directions, resulting in a full, 3-axis load cell with 6 degrees of freedom. The system may further include electrical circuitry to generate electrical drive pulses, sense amplify and buffer the voltages induced on the sense plates, and compute applied forces. An array of multicapacitor sensors that can be addressed individually without cross-talk and globally produce a map of forces and moments applied to the whole array. A MEMS implementation enables in vivo application.

Abstract translation: 多电容传感器系统有助于测量施加的剪切力和力矩力。 在一个公开的配置中，在x，y和z方向上可以检测到力矩，导致具有6个自由度的完整的3轴称重传感器。 该系统还可以包括产生电驱动脉冲的电路，感测放大和缓冲感测板上感应的电压并计算施加的力。 可以单独寻址的多电容器传感器阵列，并且全局地产生施加到整个阵列的力和力矩的映射。 MEMS实现使得能够在体内应用。

公开(公告)号：US20130049776A1

公开(公告)日：2013-02-28

申请号：US13551753

申请日：2012-07-18

Applicant: Vladimir Petkov ,  Ganesh Balachandran

Inventor： Vladimir Petkov ,  Ganesh Balachandran

IPC: G01R27/26 ,  H05K3/30

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 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：US08161823B2

公开(公告)日：2012-04-24

申请号：US12606367

申请日：2009-10-27

Applicant: Richard E. Berris, Jr.

Inventor： Richard E. Berris, Jr.

IPC: G01L1/00

CPC classification number: G01B7/22 ,  G01L1/142 ,  G01L1/144

Abstract: A capacitively-coupled strain sensor and methods are presented in which the strain on a structure is measured by the varying capacitance created by the displacement of one or more boards attached to the structure.

Abstract translation: 提出了一种电容耦合应变传感器和方法，其中结构上的应变通过由附接到结构的一个或多个板的位移产生的变化的电容来测量。

公开(公告)号：US20080178675A1

公开(公告)日：2008-07-31

申请号：US12075916

申请日：2008-03-14

Applicant: Kazuhiro Okada

Inventor： Kazuhiro Okada

IPC: G01P15/125

CPC classification number: G01P15/18 ,  G01L1/144 ,  G01L5/165 ,  G01L5/167 ,  G01P15/0802 ,  G01P15/0922 ,  G01P15/105 ,  G01P15/125 ,  G01P2015/084 ,  Y10S73/04 ,  Y10T29/43 ,  Y10T29/49005 ,  Y10T29/49007

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：US20080105936A1

公开(公告)日：2008-05-08

申请号：US11964645

申请日：2007-12-26

Applicant: Masahito NAKAMURA

Inventor： Masahito NAKAMURA

IPC: H01L29/84

CPC classification number: G01L1/144 ,  G01D5/2417 ,  G01L1/146 ,  G06K9/0002

Abstract: [Object] An object of the present invention is to provide a surface pressure distribution sensor capable of maintaining high reliability of lines in a configuration having a folded portion, precisely and stably detecting a surface pressure distribution, and being manufactured with a simple configuration and at low cost. [Solving Means] In the present invention, a first lead line group is placed adjacent to a first line group on a first substrate, a second lead line group connected to a second line group is placed on a second substrate, the second lead line group extends over a boundary portion and connects to the first lead line group on the first substrate, the width of conductors of the first lead line group is smaller than the width of conductors of the first line group and the width of conductors of the second line group, and the width of conductors of the second lead line group positioned in a folded portion of the boundary portion is larger than the width of the conductors of the first lead lined group.

Abstract translation: 本发明的目的是提供一种表面压力分布传感器，其能够在具有折叠部分的结构中保持线的高可靠性，精确且稳定地检测表面压力分布，并且以简单的构造制造，并且 低成本。 本发明中，第一引线组与第一线组相邻配置在第一基板上，与第二线组连接的第二引线组放置在第二基板上，第二导线组 在第一基板上延伸超过边界部分并连接到第一引线组，第一引线组的导体宽度小于第一线组的导体宽度和第二线组的导体宽度 并且位于边界部分的折叠部分中的第二引线组的导体的宽度大于第一引线组的导体的宽度。

公开(公告)号：US07360455B2

公开(公告)日：2008-04-22

申请号：US11724037

申请日：2007-03-14

Applicant: Kazuhiro Okada

Inventor： Kazuhiro Okada

IPC: G01D7/00

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.

公开(公告)号：US07204162B2

公开(公告)日：2007-04-17

申请号：US10995779

申请日：2004-11-23

Applicant: Jack D. Johnson ,  Seyed R. Zarabadi ,  Ian D. Jay

Inventor： Jack D. Johnson ,  Seyed R. Zarabadi ,  Ian D. Jay

IPC: G01L1/04 ,  G01L1/22

CPC classification number: G01L1/142 ,  G01L1/144

Abstract: A strain gauge for sensing strain is provided and includes a support substrate, and first and second electrodes supported on the substrate. The first and second electrodes include first and second capacitive plates, respectively. The first capacitive plates are movable relative to the second capacitive plates responsive to strain. The strain gauge further has an input electrically coupled to one of the first and second electrodes for receiving an input signal, and an output electrically coupled to the other of the first and second electrodes for providing an output signal which varies as a function of the capacitive coupling and is indicative of sensed strain.

Abstract translation: 提供了用于感测应变的应变计，并且包括支撑衬底以及支撑在衬底上的第一和第二电极。 第一和第二电极分别包括第一和第二电容板。 响应于应变，第一电容板相对于第二电容板可移动。 应变仪还具有电耦合到第一和第二电极中的一个用于接收输入信号的输入端，以及电耦合到第一和第二电极中的另一个的输出端，用于提供作为电容器的函数而变化的输出信号 耦合并且表示感测到的应变。

公开(公告)号：US20050057266A1

公开(公告)日：2005-03-17

申请号：US10959756

申请日：2004-10-06

Applicant: Hideo Morimoto

Inventor： Hideo Morimoto

IPC: G01L1/14 ,  G01L5/16 ,  G01L5/22 ,  G01L9/00 ,  G06F1/32 ,  G06F3/033 ,  G06F3/044 ,  H01H25/04 ,  G01R27/26

CPC classification number: G01L9/0072 ,  G01L1/142 ,  G01L1/144 ,  G01L5/165 ,  G01L5/223 ,  G06F1/3215 ,  G06F3/044 ,  H01H25/041 ,  H01H2025/048 ,  H01H2239/006 ,  H01H2300/022 ,  Y10T29/49002 ,  Y10T29/49005 ,  Y10T29/4902 ,  Y10T29/49103

Abstract: In a capacitance type sensor of the present invention, a capacitance element is constituted between a displacement electrode and a capacitance element electrode. A return-switch movable electrode is arranged above and spaced from the displacement electrode, to be placed in contact with the displaying electrode due to a displacement of a direction button. When the direction button is operated, the return-switch movable electrode is first displaced into contact with the displacement electrode. Then, the both make a displacement while keeping a contact state. When the displacement electrode is displaced to change the spacing to the capacitance element electrode, changed is the capacitance value of the capacitance element. Based on this change, a force is recognized. Herein, in the course of a transit from a state the displacement electrode and the return-switch electrode are not in contact to a state of their contact, the output signal varies necessarily beyond a threshold voltage.