AU587578B2 - Method and circuit for the measurement of capacitance - Google Patents
Method and circuit for the measurement of capacitanceInfo
- Publication number
- AU587578B2 AU587578B2 AU42749/85A AU4274985A AU587578B2 AU 587578 B2 AU587578 B2 AU 587578B2 AU 42749/85 A AU42749/85 A AU 42749/85A AU 4274985 A AU4274985 A AU 4274985A AU 587578 B2 AU587578 B2 AU 587578B2
- Authority
- AU
- Australia
- Prior art keywords
- capacitance
- measurement
- circuit
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
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)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI842193A FI69932C (en) | 1984-05-31 | 1984-05-31 | MAINTENANCE FOUNDATION CAPACITORS SPECIFIC FOR SMAR CAPACITORS VID VILKER MAN ANVAENDER TVAO REFERENSER |
FI842193 | 1984-05-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU4274985A AU4274985A (en) | 1985-12-05 |
AU587578B2 true AU587578B2 (en) | 1989-08-24 |
Family
ID=8519172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU42749/85A Ceased AU587578B2 (en) | 1984-05-31 | 1985-05-22 | Method and circuit for the measurement of capacitance |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS60262067A (en) |
AU (1) | AU587578B2 (en) |
BR (1) | BR8502572A (en) |
CA (1) | CA1262372A (en) |
DE (1) | DE3519390A1 (en) |
FI (1) | FI69932C (en) |
FR (1) | FR2565353B1 (en) |
GB (1) | GB2159965B (en) |
IT (1) | IT1200492B (en) |
ZA (1) | ZA853855B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI74549C (en) * | 1986-02-13 | 1988-02-08 | Vaisala Oy | MAETNINGSFOERFARANDE FOER IMPEDANSER, SAERSKILT SMAO KAPACITANSER. |
DE19524387C1 (en) * | 1995-07-04 | 1996-11-07 | Siemens Ag | Capacitance difference measuring circuit for capacitive sensor |
CN102096057B (en) * | 2010-11-16 | 2013-10-02 | 北京航天测控技术有限公司 | Calibration method and device of capacitance measurement circuit |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU503639B2 (en) * | 1976-08-16 | 1979-09-13 | Sippican Ocean Systems Inc. | Calibrating a measurement system including bridge circuit |
AU523345B2 (en) * | 1977-10-14 | 1982-07-22 | Vaisala Oy | A method for measuring low capacitances |
AU530552B2 (en) * | 1978-04-07 | 1983-07-21 | Minister of Public Works of Nsw | Wave level measuring apparatus |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE970798C (en) * | 1953-05-16 | 1958-10-30 | Rolf Scheunert Dr Ing | Arrangement for measuring preferably very small capacities or changes in capacitance |
DE1026860B (en) * | 1956-05-24 | 1958-03-27 | Die Bundesrepublik Deutschland | Beat compensator |
US3480857A (en) * | 1967-12-27 | 1969-11-25 | Ibm | Digital method and apparatus for measuring small inductances and capacitances |
DE2508033A1 (en) * | 1975-02-25 | 1976-09-02 | Zinn Erich | Measurement of capacitance and loss factor - using automatic range finding network involving relays and comparators |
SE431683B (en) * | 1977-09-23 | 1984-02-20 | Testut Aequitas | DEVICE FOR Saturation of the capacitance of a capacitor |
FI54664C (en) * | 1977-10-14 | 1979-01-10 | Vaisala Oy | ELECTRONIC EQUIPMENT IN THE SYNERNIZATION FOR TELEMETER MANAGEMENT IN THE SONDER |
US4130796A (en) * | 1977-12-07 | 1978-12-19 | Westinghouse Electric Corp. | Calibrating and measuring circuit for a capacitive probe-type instrument |
JPS5528157A (en) * | 1978-08-19 | 1980-02-28 | Fuji Electric Co Ltd | Displacement converter |
US4295091B1 (en) * | 1978-10-12 | 1995-08-15 | Vaisala Oy | Circuit for measuring low capacitances |
FR2446037A1 (en) * | 1979-01-03 | 1980-08-01 | Vaisala Oy | Procedure in radio sonde - used when transferring signals measured with capacitive sensors, to surface station by radio transmitter (sf 28.2.79) |
DE2901516C2 (en) * | 1979-01-16 | 1985-01-24 | VEGA Grieshaber GmbH & Co, 7620 Wolfach | Arrangement for generating a signal proportional to a capacitance |
US4322977A (en) * | 1980-05-27 | 1982-04-06 | The Bendix Corporation | Pressure measuring system |
SE436936B (en) * | 1981-01-29 | 1985-01-28 | Asea Ab | INTEGRATED CAPACITY SENSOR |
US4398426A (en) * | 1981-07-02 | 1983-08-16 | Kavlico Corporation | Linear capacitive pressure transducer system |
DE3321580A1 (en) * | 1983-06-15 | 1984-12-20 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Device for measuring temperature in order to compensate temperature-dependent errors in a capacitive differential-pressure sensor |
-
1984
- 1984-05-31 FI FI842193A patent/FI69932C/en not_active IP Right Cessation
-
1985
- 1985-05-21 ZA ZA853855A patent/ZA853855B/en unknown
- 1985-05-22 AU AU42749/85A patent/AU587578B2/en not_active Ceased
- 1985-05-30 IT IT20967/85A patent/IT1200492B/en active
- 1985-05-30 BR BR8502572A patent/BR8502572A/en not_active IP Right Cessation
- 1985-05-30 DE DE19853519390 patent/DE3519390A1/en active Granted
- 1985-05-30 CA CA000482808A patent/CA1262372A/en not_active Expired
- 1985-05-31 FR FR8508231A patent/FR2565353B1/en not_active Expired
- 1985-05-31 GB GB08513830A patent/GB2159965B/en not_active Expired
- 1985-05-31 JP JP60118680A patent/JPS60262067A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU503639B2 (en) * | 1976-08-16 | 1979-09-13 | Sippican Ocean Systems Inc. | Calibrating a measurement system including bridge circuit |
AU523345B2 (en) * | 1977-10-14 | 1982-07-22 | Vaisala Oy | A method for measuring low capacitances |
AU530552B2 (en) * | 1978-04-07 | 1983-07-21 | Minister of Public Works of Nsw | Wave level measuring apparatus |
Also Published As
Publication number | Publication date |
---|---|
DE3519390A1 (en) | 1985-12-12 |
DE3519390C2 (en) | 1990-10-25 |
AU4274985A (en) | 1985-12-05 |
ZA853855B (en) | 1986-03-26 |
GB2159965B (en) | 1988-06-29 |
JPS60262067A (en) | 1985-12-25 |
IT8520967A0 (en) | 1985-05-30 |
FR2565353A1 (en) | 1985-12-06 |
FI69932C (en) | 1986-05-26 |
CA1262372A (en) | 1989-10-17 |
FR2565353B1 (en) | 1986-12-26 |
GB2159965A (en) | 1985-12-11 |
IT1200492B (en) | 1989-01-18 |
FI842193A0 (en) | 1984-05-31 |
GB8513830D0 (en) | 1985-07-03 |
BR8502572A (en) | 1986-02-04 |
FI69932B (en) | 1985-12-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |