ATE108896T1 - Kapazitiver positionsdetektor. - Google Patents

Kapazitiver positionsdetektor.

Info

Publication number
ATE108896T1
ATE108896T1 AT91304234T AT91304234T ATE108896T1 AT E108896 T1 ATE108896 T1 AT E108896T1 AT 91304234 T AT91304234 T AT 91304234T AT 91304234 T AT91304234 T AT 91304234T AT E108896 T1 ATE108896 T1 AT E108896T1
Authority
AT
Austria
Prior art keywords
signal
differential
dsb
capacitors
current
Prior art date
Application number
AT91304234T
Other languages
English (en)
Inventor
Michael W Nootbaar
Gerald R Newell
Original Assignee
New Sd Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by New Sd Inc filed Critical New Sd Inc
Application granted granted Critical
Publication of ATE108896T1 publication Critical patent/ATE108896T1/de

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
    • G01D5/241—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
    • G01D5/2417—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying separation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Amplifiers (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
AT91304234T 1990-05-11 1991-05-10 Kapazitiver positionsdetektor. ATE108896T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52225190A 1990-05-11 1990-05-11

Publications (1)

Publication Number Publication Date
ATE108896T1 true ATE108896T1 (de) 1994-08-15

Family

ID=24080099

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91304234T ATE108896T1 (de) 1990-05-11 1991-05-10 Kapazitiver positionsdetektor.

Country Status (5)

Country Link
US (1) US5122755A (de)
EP (1) EP0457515B1 (de)
JP (1) JP3133778B2 (de)
AT (1) ATE108896T1 (de)
DE (1) DE69102940T2 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5421213A (en) 1990-10-12 1995-06-06 Okada; Kazuhiro Multi-dimensional force detector
US6314823B1 (en) * 1991-09-20 2001-11-13 Kazuhiro Okada Force detector and acceleration detector and method of manufacturing the same
DE4313344A1 (de) * 1993-04-23 1994-11-03 Roch Pierre Ets Kapazitive Meßeinrichtung
JP3216455B2 (ja) * 1994-12-22 2001-10-09 株式会社村田製作所 容量型静電サーボ加速度センサ
DE19513022C1 (de) * 1995-04-06 1996-08-14 Siemens Ag Schaltungsanordnung und Verfahren zur Bestimmung von Kapazitätsdifferenzen
US5659262A (en) * 1996-03-15 1997-08-19 Analog Devices, Inc. Offset trimming for a micromachined sensing device
US6181142B1 (en) * 1998-07-21 2001-01-30 Ade Corporation Nonlinear current mirror for loop-gain control
US6606353B1 (en) * 1999-07-20 2003-08-12 Agere Systems Inc. Multi-position switch for single digital I/O pin
JP3588276B2 (ja) * 1999-07-26 2004-11-10 株式会社山武 センサ信号処理回路
US9500686B1 (en) * 2007-06-29 2016-11-22 Cypress Semiconductor Corporation Capacitance measurement system and methods
US8570053B1 (en) 2007-07-03 2013-10-29 Cypress Semiconductor Corporation Capacitive field sensor with sigma-delta modulator
US8089289B1 (en) 2007-07-03 2012-01-03 Cypress Semiconductor Corporation Capacitive field sensor with sigma-delta modulator
US7570066B2 (en) 2007-11-01 2009-08-04 Seagate Technology Llc Simultaneous detection of in-plane and out-of-plane position displacement with capacitive sensors
US8358142B2 (en) 2008-02-27 2013-01-22 Cypress Semiconductor Corporation Methods and circuits for measuring mutual and self capacitance
US8319505B1 (en) 2008-10-24 2012-11-27 Cypress Semiconductor Corporation Methods and circuits for measuring mutual and self capacitance
JP4750876B2 (ja) * 2009-06-05 2011-08-17 日本電信電話株式会社 センサ回路およびセンサノード
US9279336B2 (en) 2012-09-05 2016-03-08 United Technologies Corporation High temperature split-face probe
US20150145536A1 (en) * 2013-11-27 2015-05-28 Telefonaktiebolaget Lm Ericsson (Publ) Methods and Systems for Production Testing of Capacitors
US9344070B2 (en) * 2014-01-27 2016-05-17 Texas Instruments Incorporated Relaxation oscillator with low drift and native offset cancellation
CN113155012B (zh) * 2021-01-25 2022-11-01 上海兰宝传感科技股份有限公司 一种电容接近开关传感器
CN113934132B (zh) * 2021-10-12 2022-05-27 湖南师范大学 一种基于北斗时钟信号的高精度时间同步系统及同步方法
CN114543644B (zh) * 2022-02-18 2022-11-15 广州市欧智智能科技有限公司 一种头部位置检测方法、装置、终端和介质

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122708A (en) * 1976-03-31 1978-10-31 Simmonds Precision Products, Inc. Capacitive proximity sensors
US4206400A (en) * 1976-07-06 1980-06-03 Sundstrand Data Control, Inc. Accelerometer
US4165483A (en) * 1978-01-31 1979-08-21 Sundstrand Data Control, Inc. Capacitive pick-off circuit
CH642461A5 (fr) * 1981-07-02 1984-04-13 Centre Electron Horloger Accelerometre.
JPS6093311A (ja) * 1983-10-27 1985-05-25 Mitsutoyo Mfg Co Ltd 容量式変位測定機
DE3542030A1 (de) * 1985-05-06 1986-10-09 Haberland, Rüdiger, Prof. Dr.-Ing., 6750 Kaiserslautern Auswerteelektronik fuer differentialkondensatoren
DE3528416C2 (de) * 1985-08-08 1996-04-18 Envec Mess Und Regeltechn Gmbh Auswerteschaltung für einen kapazitiven Sensor
DE3732756A1 (de) * 1986-11-27 1988-06-09 Weinert E Messgeraetewerk Schaltungsanordnung zur messung kleiner kapazitaetsdifferenzen

Also Published As

Publication number Publication date
DE69102940T2 (de) 1995-01-12
EP0457515A1 (de) 1991-11-21
DE69102940D1 (de) 1994-08-25
JP3133778B2 (ja) 2001-02-13
US5122755A (en) 1992-06-16
JPH05113457A (ja) 1993-05-07
EP0457515B1 (de) 1994-07-20

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