CH629311A5 - Circuit de mesure de difference de capacite. - Google Patents
Circuit de mesure de difference de capacite. Download PDFInfo
- Publication number
- CH629311A5 CH629311A5 CH120879A CH120879A CH629311A5 CH 629311 A5 CH629311 A5 CH 629311A5 CH 120879 A CH120879 A CH 120879A CH 120879 A CH120879 A CH 120879A CH 629311 A5 CH629311 A5 CH 629311A5
- Authority
- CH
- Switzerland
- Prior art keywords
- amplifier
- capacitor
- circuit
- output
- terminal
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims description 40
- 238000005259 measurement Methods 0.000 description 23
- 230000002787 reinforcement Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 101100341170 Caenorhabditis elegans irg-7 gene Proteins 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2605—Measuring capacitance
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Amplifiers (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/876,602 US4167697A (en) | 1978-02-10 | 1978-02-10 | Capacitive pick-off circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH629311A5 true CH629311A5 (fr) | 1982-04-15 |
Family
ID=25368119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH120879A CH629311A5 (fr) | 1978-02-10 | 1979-02-07 | Circuit de mesure de difference de capacite. |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4167697A (en, 2012) |
| JP (1) | JPS54118880A (en, 2012) |
| AU (1) | AU528772B2 (en, 2012) |
| CA (1) | CA1119253A (en, 2012) |
| CH (1) | CH629311A5 (en, 2012) |
| DE (1) | DE2904834C2 (en, 2012) |
| FR (1) | FR2417117A1 (en, 2012) |
| GB (1) | GB2015173B (en, 2012) |
| IL (1) | IL56640A (en, 2012) |
| IT (1) | IT1114522B (en, 2012) |
| NO (1) | NO790414L (en, 2012) |
| SE (1) | SE7901195L (en, 2012) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4509007A (en) * | 1982-09-30 | 1985-04-02 | Ibm Corporation | Differential sensor measuring apparatus and method including sensor compensator circuitry |
| US4694279A (en) * | 1986-10-17 | 1987-09-15 | University Of Pittsburgh | Vector electronic control device |
| DE4020196A1 (de) * | 1990-06-25 | 1992-01-09 | Weidmueller C A Gmbh Co | Messeinrichtung und verfahren zu ihrer betriebseinstellung |
| JP3233791B2 (ja) * | 1994-08-25 | 2001-11-26 | 株式会社山武 | 差動容量反転積分器及びこれを用いた静電容量変化量検出装置 |
| US5802728A (en) * | 1995-08-17 | 1998-09-08 | Watson Industries, Inc. | Liquid level and angle detector |
| FR2751074B1 (fr) * | 1996-07-11 | 1998-11-06 | Comm Composants Soc Ind | Dispositif de mesure capacitive du niveau d'un liquide dans un reservoir |
| DE10027507C1 (de) * | 2000-06-06 | 2002-01-03 | Rechner Ind Elektronik Gmbh | Schaltungsanordnung zur Erfassung von Kapazitätsänderungen |
| US9285207B2 (en) * | 2013-03-13 | 2016-03-15 | Invensense, Inc. | Linear capacitive displacement sensor |
| US11014194B2 (en) * | 2017-11-02 | 2021-05-25 | Coherent, Inc. | Laser material processing distance gauge |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE306970B (en, 2012) * | 1965-04-27 | 1968-12-16 | B Bjerede | |
| US3753373A (en) * | 1965-10-22 | 1973-08-21 | Bissett Berman Corp | Transducer system |
| US3487300A (en) * | 1967-09-18 | 1969-12-30 | Robertshaw Controls Co | Capacitance to current transducer employing capacitor charged to preset voltage by constant current and feedback current related to capacitance change |
| US3518537A (en) * | 1967-11-28 | 1970-06-30 | Richard Mcfee | Apparatus and method for determining the capacitance and conductance of capacitors |
| US3641431A (en) * | 1968-10-01 | 1972-02-08 | Gleason Works | Method for inspecting and adjusting cutter blades |
| US3665300A (en) * | 1971-03-05 | 1972-05-23 | Gen Electric | Liquid layer thickness device having a floating electrode |
| US3757210A (en) * | 1972-03-09 | 1973-09-04 | Betz Laboratories | Us system apparatus and method for testing the amount of deposition in an aqueo |
| US3855527A (en) * | 1974-01-07 | 1974-12-17 | Western Electric Co | Method and system for determining the resistance of the dielectric in a capacitor |
| AU504091B2 (en) * | 1976-07-06 | 1979-10-04 | Sundstrand Data Control, Inc. | Accelerometer |
| US4096758A (en) * | 1977-05-24 | 1978-06-27 | Moore Products Co. | Pressure to electric transducer |
-
1978
- 1978-02-10 US US05/876,602 patent/US4167697A/en not_active Expired - Lifetime
-
1979
- 1979-01-25 CA CA000320257A patent/CA1119253A/en not_active Expired
- 1979-02-07 CH CH120879A patent/CH629311A5/fr not_active IP Right Cessation
- 1979-02-08 IT IT47938/79A patent/IT1114522B/it active
- 1979-02-08 NO NO790414A patent/NO790414L/no unknown
- 1979-02-08 DE DE2904834A patent/DE2904834C2/de not_active Expired
- 1979-02-09 FR FR7903331A patent/FR2417117A1/fr active Granted
- 1979-02-09 AU AU44119/79A patent/AU528772B2/en not_active Ceased
- 1979-02-09 GB GB7904726A patent/GB2015173B/en not_active Expired
- 1979-02-09 JP JP1345779A patent/JPS54118880A/ja active Pending
- 1979-02-11 IL IL56640A patent/IL56640A/xx unknown
- 1979-02-12 SE SE7901195A patent/SE7901195L/ not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54118880A (en) | 1979-09-14 |
| DE2904834C2 (de) | 1981-12-17 |
| SE7901195L (sv) | 1979-08-11 |
| GB2015173B (en) | 1982-10-20 |
| DE2904834A1 (de) | 1979-08-16 |
| GB2015173A (en) | 1979-09-05 |
| FR2417117A1 (fr) | 1979-09-07 |
| IT7947938A0 (it) | 1979-02-08 |
| AU528772B2 (en) | 1983-05-12 |
| NO790414L (no) | 1979-08-13 |
| FR2417117B1 (en, 2012) | 1983-10-28 |
| IT1114522B (it) | 1986-01-27 |
| AU4411979A (en) | 1979-08-16 |
| IL56640A (en) | 1981-06-29 |
| CA1119253A (en) | 1982-03-02 |
| US4167697A (en) | 1979-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |