JPS5498696A - Method of measuring low capacity - Google Patents

Method of measuring low capacity

Info

Publication number
JPS5498696A
JPS5498696A JP12521278A JP12521278A JPS5498696A JP S5498696 A JPS5498696 A JP S5498696A JP 12521278 A JP12521278 A JP 12521278A JP 12521278 A JP12521278 A JP 12521278A JP S5498696 A JPS5498696 A JP S5498696A
Authority
JP
Japan
Prior art keywords
low capacity
measuring low
measuring
capacity
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.)
Pending
Application number
JP12521278A
Other languages
English (en)
Inventor
Ponkara Yoruma
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 JPS5498696A publication Critical patent/JPS5498696A/ja
Pending 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)
  • Amplifiers (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
JP12521278A 1977-10-14 1978-10-13 Method of measuring low capacity Pending JPS5498696A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
JPS5498696A true JPS5498696A (en) 1979-08-03

Family

ID=8511140

Family Applications (2)

Application Number Title Priority Date Filing Date
JP12521278A Pending JPS5498696A (en) 1977-10-14 1978-10-13 Method of measuring low capacity
JP1987087613U Expired - Lifetime JPH056544Y2 (ja) 1977-10-14 1987-06-08

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP1987087613U Expired - Lifetime JPH056544Y2 (ja) 1977-10-14 1987-06-08

Country Status (10)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56166411A (en) * 1980-05-27 1981-12-21 Yokogawa Hokushin Electric Corp Capacity type displacement transducer
JPS57187666A (en) * 1981-05-06 1982-11-18 Bosch Gmbh Robert Inductance measuring circuit device
JPS6114578A (ja) * 1984-06-30 1986-01-22 Suzuki Shigeo 容量計

Families Citing this family (8)

* 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
DK4383A (da) * 1983-01-07 1984-07-08 Nils Aage Juul Eilersen Oscillatorkobling
FI69932C (fi) * 1984-05-31 1986-05-26 Vaisala Oy Maetningsfoerfarande foer kapacitanser speciellt foer smao kapacitanser vid vilker man anvaender tvao referenser
FI74549C (fi) * 1986-02-13 1988-02-08 Vaisala Oy Maetningsfoerfarande foer impedanser, saerskilt smao kapacitanser.
DE4039006C1 (ja) * 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
US8604809B2 (en) 2008-11-02 2013-12-10 Siemens Aktiengesellschaft Current sensor capacity measuring system
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 (ja) * 1971-06-24 1975-02-07 Commissariat Energie Atomique
FR2208121B1 (ja) * 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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56166411A (en) * 1980-05-27 1981-12-21 Yokogawa Hokushin Electric Corp Capacity type displacement transducer
JPS57187666A (en) * 1981-05-06 1982-11-18 Bosch Gmbh Robert Inductance measuring circuit device
JPS6114578A (ja) * 1984-06-30 1986-01-22 Suzuki Shigeo 容量計

Also Published As

Publication number Publication date
FI57319C (fi) 1980-07-10
FR2410280B1 (ja) 1984-01-06
AU523345B2 (en) 1982-07-22
GB2006442B (en) 1982-04-28
AU4067578A (en) 1980-04-17
DE2844121C2 (de) 1981-09-24
JPS62201074U (ja) 1987-12-22
IT7828692A0 (it) 1978-10-12
GB2006442A (en) 1979-05-02
FR2410280A1 (fr) 1979-06-22
FI57319B (fi) 1980-03-31
JPH056544Y2 (ja) 1993-02-19
FI773063A (fi) 1979-04-15
IT1100121B (it) 1985-09-28
CA1128129A (en) 1982-07-20
DE2844121A1 (de) 1979-04-19
BR7806786A (pt) 1979-05-15
ZA785694B (en) 1979-09-26

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