AU523345B2 - A method for measuring low capacitances - Google Patents

A method for measuring low capacitances

Info

Publication number
AU523345B2
AU523345B2 AU40675/78A AU4067578A AU523345B2 AU 523345 B2 AU523345 B2 AU 523345B2 AU 40675/78 A AU40675/78 A AU 40675/78A AU 4067578 A AU4067578 A AU 4067578A AU 523345 B2 AU523345 B2 AU 523345B2
Authority
AU
Australia
Prior art keywords
measuring low
low capacitances
capacitances
measuring
low
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.)
Expired
Application number
AU40675/78A
Other languages
English (en)
Other versions
AU4067578A (en
Inventor
Ponnala Jorma
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.)
Filing date
Publication date
Application filed by Vaisala Oy filed Critical Vaisala Oy
Publication of AU4067578A publication Critical patent/AU4067578A/en
Application granted granted Critical
Publication of AU523345B2 publication Critical patent/AU523345B2/en
Expired 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)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Amplifiers (AREA)
AU40675/78A 1977-10-14 1978-10-12 A method for measuring low capacitances Expired AU523345B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI773063A FI57319C (fi) 1977-10-14 1977-10-14 Foerfarande foer maetning av smao kapacitanser
FIFI773063 1977-10-14

Publications (2)

Publication Number Publication Date
AU4067578A AU4067578A (en) 1980-04-17
AU523345B2 true AU523345B2 (en) 1982-07-22

Family

ID=8511140

Family Applications (1)

Application Number Title Priority Date Filing Date
AU40675/78A Expired AU523345B2 (en) 1977-10-14 1978-10-12 A method for measuring low capacitances

Country Status (10)

Country Link
JP (2) JPS5498696A (zh)
AU (1) AU523345B2 (zh)
BR (1) BR7806786A (zh)
CA (1) CA1128129A (zh)
DE (1) DE2844121C2 (zh)
FI (1) FI57319C (zh)
FR (1) FR2410280A1 (zh)
GB (1) GB2006442B (zh)
IT (1) IT1100121B (zh)
ZA (1) ZA785694B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU587578B2 (en) * 1984-05-31 1989-08-24 Vaisala Oy Method and circuit for the measurement of capacitance

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2475231A1 (fr) * 1980-02-04 1981-08-07 Testut Aequitas Dispositif de mesure de capacite, en particulier pour instrument de pesage
JPS56166411A (en) * 1980-05-27 1981-12-21 Yokogawa Hokushin Electric Corp Capacity type displacement transducer
DE3117808A1 (de) * 1981-05-06 1982-11-25 Robert Bosch Gmbh, 7000 Stuttgart Schaltungsanordnung zur messung von induktivitaetsaenderungen
DK4383A (da) * 1983-01-07 1984-07-08 Nils Aage Juul Eilersen Oscillatorkobling
JPS6114578A (ja) * 1984-06-30 1986-01-22 Suzuki Shigeo 容量計
FI74549C (fi) * 1986-02-13 1988-02-08 Vaisala Oy Maetningsfoerfarande foer impedanser, saerskilt smao kapacitanser.
DE4039006C1 (zh) * 1990-12-06 1992-03-12 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De
JP2007187509A (ja) * 2006-01-12 2007-07-26 Denso Corp 容量式物理量センサ
EP2344896A1 (en) 2008-11-02 2011-07-20 Siemens Aktiengesellschaft Current sensor capacitance measuring circuit
FR2977950B1 (fr) * 2011-07-13 2014-11-07 Jean Noel Lefebvre Dispositif de detection capacitif

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3518537A (en) * 1967-11-28 1970-06-30 Richard Mcfee Apparatus and method for determining the capacitance and conductance of capacitors
US3626287A (en) * 1969-02-10 1971-12-07 C G I Corp System for responding to changes in capacitance of a sensing capacitor
FR2142732B1 (zh) * 1971-06-24 1975-02-07 Commissariat Energie Atomique
FR2208121B1 (zh) * 1972-11-29 1978-12-29 Commissariat Energie Atomique
US4083248A (en) * 1975-09-04 1978-04-11 Simmonds Precision Products, Inc. Digital liquid-level gauging systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU587578B2 (en) * 1984-05-31 1989-08-24 Vaisala Oy Method and circuit for the measurement of capacitance

Also Published As

Publication number Publication date
GB2006442A (en) 1979-05-02
JPS5498696A (en) 1979-08-03
BR7806786A (pt) 1979-05-15
IT1100121B (it) 1985-09-28
DE2844121A1 (de) 1979-04-19
AU4067578A (en) 1980-04-17
DE2844121C2 (de) 1981-09-24
FI773063A (fi) 1979-04-15
GB2006442B (en) 1982-04-28
FI57319B (fi) 1980-03-31
FI57319C (fi) 1980-07-10
FR2410280A1 (fr) 1979-06-22
JPH056544Y2 (zh) 1993-02-19
IT7828692A0 (it) 1978-10-12
ZA785694B (en) 1979-09-26
CA1128129A (en) 1982-07-20
JPS62201074U (zh) 1987-12-22
FR2410280B1 (zh) 1984-01-06

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