BR8502572A - Processo para a medicao de capacitancias - Google Patents

Processo para a medicao de capacitancias

Info

Publication number
BR8502572A
BR8502572A BR8502572A BR8502572A BR8502572A BR 8502572 A BR8502572 A BR 8502572A BR 8502572 A BR8502572 A BR 8502572A BR 8502572 A BR8502572 A BR 8502572A BR 8502572 A BR8502572 A BR 8502572A
Authority
BR
Brazil
Prior art keywords
measurement process
capacity measurement
capacity
measurement
Prior art date
Application number
BR8502572A
Other languages
English (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 BR8502572A publication Critical patent/BR8502572A/pt

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)
BR8502572A 1984-05-31 1985-05-30 Processo para a medicao de capacitancias BR8502572A (pt)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BR8502572A true BR8502572A (pt) 1986-02-04

Family

ID=8519172

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8502572A BR8502572A (pt) 1984-05-31 1985-05-30 Processo para a medicao de capacitancias

Country Status (10)

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

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
DE3519390C2 (pt) 1990-10-25
GB2159965B (en) 1988-06-29
DE3519390A1 (de) 1985-12-12
ZA853855B (en) 1986-03-26
AU587578B2 (en) 1989-08-24
AU4274985A (en) 1985-12-05
FR2565353B1 (fr) 1986-12-26
GB8513830D0 (en) 1985-07-03
FI69932B (fi) 1985-12-31
FI69932C (fi) 1986-05-26
IT1200492B (it) 1989-01-18
CA1262372A (en) 1989-10-17
JPS60262067A (ja) 1985-12-25
IT8520967A0 (it) 1985-05-30
FI842193A0 (fi) 1984-05-31
GB2159965A (en) 1985-12-11
FR2565353A1 (fr) 1985-12-06

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 30/05/2000