IT1200492B - METHOD FOR MEASURING CAPACITANCES, IN PARTICULAR LOW CAPACITIES, IN WHICH TWO REFERENCES ARE USED - Google Patents

METHOD FOR MEASURING CAPACITANCES, IN PARTICULAR LOW CAPACITIES, IN WHICH TWO REFERENCES ARE USED

Info

Publication number
IT1200492B
IT1200492B IT20967/85A IT2096785A IT1200492B IT 1200492 B IT1200492 B IT 1200492B IT 20967/85 A IT20967/85 A IT 20967/85A IT 2096785 A IT2096785 A IT 2096785A IT 1200492 B IT1200492 B IT 1200492B
Authority
IT
Italy
Prior art keywords
references
particular low
low capacities
measuring capacitances
capacitances
Prior art date
Application number
IT20967/85A
Other languages
Italian (it)
Other versions
IT8520967A0 (en
Inventor
Jorma Ponkala
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.)
Filing date
Publication date
Application filed by Vaisala Oy filed Critical Vaisala Oy
Publication of IT8520967A0 publication Critical patent/IT8520967A0/en
Application granted granted Critical
Publication of IT1200492B publication Critical patent/IT1200492B/en

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)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
IT20967/85A 1984-05-31 1985-05-30 METHOD FOR MEASURING CAPACITANCES, IN PARTICULAR LOW CAPACITIES, IN WHICH TWO REFERENCES ARE USED IT1200492B (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
IT8520967A0 IT8520967A0 (en) 1985-05-30
IT1200492B true IT1200492B (en) 1989-01-18

Family

ID=8519172

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20967/85A IT1200492B (en) 1984-05-31 1985-05-30 METHOD FOR MEASURING CAPACITANCES, IN PARTICULAR LOW CAPACITIES, IN WHICH TWO REFERENCES ARE USED

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

Family Cites Families (18)

* 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
US4041382A (en) * 1976-08-16 1977-08-09 The Sippican Corporation Calibrating a measurement system including bridge circuit
GB2006970B (en) * 1977-09-23 1982-03-31 Testut Aequitas Capacitance measuring device
FI57319C (en) * 1977-10-14 1980-07-10 Vaisala Oy ADJUSTMENT OF CAPACITY IN CAPACITY
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
AU530552B2 (en) * 1978-04-07 1983-07-21 Minister of Public Works of Nsw Wave level measuring apparatus
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

Also Published As

Publication number Publication date
GB2159965A (en) 1985-12-11
GB2159965B (en) 1988-06-29
IT8520967A0 (en) 1985-05-30
GB8513830D0 (en) 1985-07-03
ZA853855B (en) 1986-03-26
AU4274985A (en) 1985-12-05
CA1262372A (en) 1989-10-17
FR2565353A1 (en) 1985-12-06
JPS60262067A (en) 1985-12-25
BR8502572A (en) 1986-02-04
DE3519390A1 (en) 1985-12-12
FR2565353B1 (en) 1986-12-26
FI842193A0 (en) 1984-05-31
DE3519390C2 (en) 1990-10-25
FI69932C (en) 1986-05-26
FI69932B (en) 1985-12-31
AU587578B2 (en) 1989-08-24

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Effective date: 19970529