FI69932C - Maetningsfoerfarande foer kapacitanser speciellt foer smao kapacitanser vid vilker man anvaender tvao referenser - Google Patents

Maetningsfoerfarande foer kapacitanser speciellt foer smao kapacitanser vid vilker man anvaender tvao referenser Download PDF

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Publication number
FI69932C
FI69932C FI842193A FI842193A FI69932C FI 69932 C FI69932 C FI 69932C FI 842193 A FI842193 A FI 842193A FI 842193 A FI842193 A FI 842193A FI 69932 C FI69932 C FI 69932C
Authority
FI
Finland
Prior art keywords
measuring
capacitance
signals
capacitances
electronics
Prior art date
Application number
FI842193A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI842193A0 (fi
FI69932B (fi
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 FI842193A0 publication Critical patent/FI842193A0/fi
Priority to FI842193A priority Critical patent/FI69932C/fi
Priority to ZA853855A priority patent/ZA853855B/xx
Priority to AU42749/85A priority patent/AU587578B2/en
Priority to DE19853519390 priority patent/DE3519390A1/de
Priority to CA000482808A priority patent/CA1262372A/en
Priority to BR8502572A priority patent/BR8502572A/pt
Priority to IT20967/85A priority patent/IT1200492B/it
Priority to JP60118680A priority patent/JPS60262067A/ja
Priority to FR8508231A priority patent/FR2565353B1/fr
Priority to GB08513830A priority patent/GB2159965B/en
Publication of FI69932B publication Critical patent/FI69932B/fi
Application granted granted Critical
Publication of FI69932C publication Critical patent/FI69932C/fi

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)
FI842193A 1984-05-31 1984-05-31 Maetningsfoerfarande foer kapacitanser speciellt foer smao kapacitanser vid vilker man anvaender tvao referenser FI69932C (fi)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FI842193A FI69932C (fi) 1984-05-31 1984-05-31 Maetningsfoerfarande foer kapacitanser speciellt foer smao kapacitanser vid vilker man anvaender tvao referenser
ZA853855A ZA853855B (en) 1984-05-31 1985-05-21 Method for the measurement of capacitances
AU42749/85A AU587578B2 (en) 1984-05-31 1985-05-22 Method and circuit for the measurement of capacitance
CA000482808A CA1262372A (en) 1984-05-31 1985-05-30 Method for the measurement of capacitances, in particular of low capacitances, wherein two references are used
DE19853519390 DE3519390A1 (de) 1984-05-31 1985-05-30 Verfahren zur messung von kapazitaeten, insbesondere von kleinen kapazitaeten, unter verwendung zweier referenzen
BR8502572A BR8502572A (pt) 1984-05-31 1985-05-30 Processo para a medicao de capacitancias
IT20967/85A IT1200492B (it) 1984-05-31 1985-05-30 Metodo per la misurazione di capacitanze,in particolare di basse capacitanze,in cui vengono utilizzati due riferimenti
JP60118680A JPS60262067A (ja) 1984-05-31 1985-05-31 容量測定方法
FR8508231A FR2565353B1 (fr) 1984-05-31 1985-05-31 Procede pour mesurer des capacites, notamment de faibles capacites, dans lequel on utilise deux capacites de reference
GB08513830A GB2159965B (en) 1984-05-31 1985-05-31 Method for the measurement of capacitance

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI842193A FI69932C (fi) 1984-05-31 1984-05-31 Maetningsfoerfarande foer kapacitanser speciellt foer smao kapacitanser vid vilker man anvaender tvao referenser
FI842193 1984-05-31

Publications (3)

Publication Number Publication Date
FI842193A0 FI842193A0 (fi) 1984-05-31
FI69932B FI69932B (fi) 1985-12-31
FI69932C true FI69932C (fi) 1986-05-26

Family

ID=8519172

Family Applications (1)

Application Number Title Priority Date Filing Date
FI842193A FI69932C (fi) 1984-05-31 1984-05-31 Maetningsfoerfarande foer kapacitanser speciellt foer smao kapacitanser vid vilker man anvaender tvao referenser

Country Status (10)

Country Link
JP (1) JPS60262067A (enrdf_load_stackoverflow)
AU (1) AU587578B2 (enrdf_load_stackoverflow)
BR (1) BR8502572A (enrdf_load_stackoverflow)
CA (1) CA1262372A (enrdf_load_stackoverflow)
DE (1) DE3519390A1 (enrdf_load_stackoverflow)
FI (1) FI69932C (enrdf_load_stackoverflow)
FR (1) FR2565353B1 (enrdf_load_stackoverflow)
GB (1) GB2159965B (enrdf_load_stackoverflow)
IT (1) IT1200492B (enrdf_load_stackoverflow)
ZA (1) ZA853855B (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI74549C (fi) * 1986-02-13 1988-02-08 Vaisala Oy Maetningsfoerfarande foer impedanser, saerskilt smao kapacitanser.
DE19524387C1 (de) * 1995-07-04 1996-11-07 Siemens Ag Schaltungsanordnung und Verfahren zum Messen eines Kapazitätsunterschiedes zwischen einer ersten Kapazität C1 und einer zweiten Kapazität C2
CN102096057B (zh) * 2010-11-16 2013-10-02 北京航天测控技术有限公司 一种电容测量电路的校准方法及装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE970798C (de) * 1953-05-16 1958-10-30 Rolf Scheunert Dr Ing Anordnung zur Messung von vorzugsweise sehr kleinen Kapazitaeten bzw. Kapazitaetsaenderungen
DE1026860B (de) * 1956-05-24 1958-03-27 Die Bundesrepublik Deutschland Schwebungskompensator
US3480857A (en) * 1967-12-27 1969-11-25 Ibm Digital method and apparatus for measuring small inductances and capacitances
DE2508033A1 (de) * 1975-02-25 1976-09-02 Zinn Erich Kapazitaets- und verlustfaktormesseinrichtung mit selbsttaetiger abgleichung
US4041382A (en) * 1976-08-16 1977-08-09 The Sippican Corporation Calibrating a measurement system including bridge circuit
SE431683B (sv) * 1977-09-23 1984-02-20 Testut Aequitas Anordning for metning av kapacitansen hos en kondensator
FI57319C (fi) * 1977-10-14 1980-07-10 Vaisala Oy Foerfarande foer maetning av smao kapacitanser
FI54664C (fi) * 1977-10-14 1979-01-10 Vaisala Oy Elektronisk omkopplingstroemstaellare i synnerhet foer telemeteranvaendning i 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 (fr) * 1979-01-03 1980-08-01 Vaisala Oy Procede d'emission de signaux pour une radiosonde
DE2901516C2 (de) * 1979-01-16 1985-01-24 VEGA Grieshaber GmbH & Co, 7620 Wolfach Anordnung zur Erzeugung eines einer Kapazität proportionalen Signals
US4322977A (en) * 1980-05-27 1982-04-06 The Bendix Corporation Pressure measuring system
SE436936B (sv) * 1981-01-29 1985-01-28 Asea Ab Integrerad kapacitiv givare
US4398426A (en) * 1981-07-02 1983-08-16 Kavlico Corporation Linear capacitive pressure transducer system
DE3321580A1 (de) * 1983-06-15 1984-12-20 Philips Patentverwaltung Gmbh, 2000 Hamburg Einrichtung zur erfassung der temperatur fuer die kompensation temperaturabhaengiger fehler in einem kapazitiven differenzdrucksensor

Also Published As

Publication number Publication date
FI842193A0 (fi) 1984-05-31
IT1200492B (it) 1989-01-18
IT8520967A0 (it) 1985-05-30
GB2159965B (en) 1988-06-29
FR2565353A1 (fr) 1985-12-06
GB2159965A (en) 1985-12-11
ZA853855B (en) 1986-03-26
BR8502572A (pt) 1986-02-04
JPS60262067A (ja) 1985-12-25
DE3519390A1 (de) 1985-12-12
FI69932B (fi) 1985-12-31
FR2565353B1 (fr) 1986-12-26
AU587578B2 (en) 1989-08-24
GB8513830D0 (en) 1985-07-03
DE3519390C2 (enrdf_load_stackoverflow) 1990-10-25
CA1262372A (en) 1989-10-17
AU4274985A (en) 1985-12-05

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Owner name: VAISALA OY