AU587578B2 - Method and circuit for the measurement of capacitance - Google Patents

Method and circuit for the measurement of capacitance

Info

Publication number: AU587578B2
Authority: AU; Australia
Prior art keywords: capacitance; measurement; circuit
Prior art date: 1984-05-31
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

Application number

AU42749/85A

Other versions

AU4274985A (en

Inventor

Jorma Ponkala

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Vaisala Oy

Original Assignee

Vaisala Oy

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.)

1984-05-31

Filing date

1985-05-22

Publication date

1989-08-24

1985-05-22 Application filed by Vaisala Oy filed Critical Vaisala Oy

1985-12-05 Publication of AU4274985A publication Critical patent/AU4274985A/en

1989-08-24 Application granted granted Critical

1989-08-24 Publication of AU587578B2 publication Critical patent/AU587578B2/en

2005-05-22 Anticipated expiration legal-status Critical

Status Ceased legal-status Critical Current

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)

AU42749/85A 1984-05-31 1985-05-22 Method and circuit for the measurement of capacitance Ceased AU587578B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication	Publication Date	Title
AU586140B2 (en)	1989-06-29	Well test apparatus and methods
AU586163B2 (en)	1989-07-06	Testing apparatus
EP0282878A3 (en)	1989-09-20	Arrangement of optical-integrated spectrometer and method for the making the same
AU4686485A (en)	1986-06-26	Electronic foot measuring apparatus and method
BG50263A3 (en)	1992-06-15	An antidote and the method for its application
AU569158B2 (en)	1988-01-21	Microwave level measurement
GB8506391D0 (en)	1985-04-11	Determining value of capacitance
AU3830185A (en)	1985-07-30	Electronic dendrometer
AU1152588A (en)	1988-09-14	Fixing device and method for the manufacture of same
GB2106714B (en)	1985-05-09	Ceramic capacitor and method of making the same
AU573293B2 (en)	1988-06-02	Method of measuring components of liquid
AU4137385A (en)	1985-11-14	Torque measurement circuit and method
EP0227183A3 (en)	1989-04-19	Thin film capacitors and method of making the same
DE3568493D1 (en)	1989-04-06	Method for the measurement of capacitances, in particular of low capacitances
EP0335769A3 (en)	1990-08-29	Electroconducting glass and method of making the same
GB2154385B (en)	1987-04-29	Frequency measurement method and device
AU4006885A (en)	1985-09-26	Substituted (azacycloalk-2-yl) iminophenols and esters thereof
EP0183615A3 (en)	1987-09-30	Method and device for the detection of changes of phase
AU5779586A (en)	1986-11-18	Arrangement and method for measurement of articles
AU7291687A (en)	1987-11-26	Geometric instrument and method of making same
AU587578B2 (en)	1989-08-24	Method and circuit for the measurement of capacitance
GB8522462D0 (en)	1985-10-16	Measuring characteristics of electronic devices
AU575409B2 (en)	1988-07-28	Frequency measuring device
AU638091B2 (en)	1993-06-17	Solid electrolyte capacitors and method of making the same
EP0171012A3 (en)	1987-08-26	Acousto-optic device and method of making the same

Legal Events

Date	Code	Title	Description
2003-01-09	MK14	Patent ceased section 143(a) (annual fees not paid) or expired