FR2208121B1 - - Google Patents

Info

Publication number
FR2208121B1
FR2208121B1 FR7242467A FR7242467A FR2208121B1 FR 2208121 B1 FR2208121 B1 FR 2208121B1 FR 7242467 A FR7242467 A FR 7242467A FR 7242467 A FR7242467 A FR 7242467A FR 2208121 B1 FR2208121 B1 FR 2208121B1
Authority
FR
France
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
FR7242467A
Other versions
FR2208121A1 (fr
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR7242467A priority Critical patent/FR2208121B1/fr
Priority to GB5378473A priority patent/GB1417681A/en
Priority to US418300A priority patent/US3896374A/en
Priority to NL7316123A priority patent/NL7316123A/xx
Priority to IT70492/73A priority patent/IT1009058B/it
Priority to JP48133947A priority patent/JPS506377A/ja
Priority to DE2359527A priority patent/DE2359527A1/de
Publication of FR2208121A1 publication Critical patent/FR2208121A1/fr
Application granted granted Critical
Publication of FR2208121B1 publication Critical patent/FR2208121B1/fr
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)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
FR7242467A 1972-11-29 1972-11-29 Expired FR2208121B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7242467A FR2208121B1 (fr) 1972-11-29 1972-11-29
GB5378473A GB1417681A (en) 1972-11-29 1973-11-20 Method of analogue measurement of a capacitance and apparatus therefor
US418300A US3896374A (en) 1972-11-29 1973-11-23 Method of analog measurement of a capacitance and a capacitance meter for carrying out said method
NL7316123A NL7316123A (fr) 1972-11-29 1973-11-26
IT70492/73A IT1009058B (it) 1972-11-29 1973-11-28 Dispositivo per la determinazione analogica di capacita elettrica
JP48133947A JPS506377A (fr) 1972-11-29 1973-11-29
DE2359527A DE2359527A1 (de) 1972-11-29 1973-11-29 Verfahren und anordnung zur kapazitaetsmessung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7242467A FR2208121B1 (fr) 1972-11-29 1972-11-29

Publications (2)

Publication Number Publication Date
FR2208121A1 FR2208121A1 (fr) 1974-06-21
FR2208121B1 true FR2208121B1 (fr) 1978-12-29

Family

ID=9107931

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7242467A Expired FR2208121B1 (fr) 1972-11-29 1972-11-29

Country Status (7)

Country Link
US (1) US3896374A (fr)
JP (1) JPS506377A (fr)
DE (1) DE2359527A1 (fr)
FR (1) FR2208121B1 (fr)
GB (1) GB1417681A (fr)
IT (1) IT1009058B (fr)
NL (1) NL7316123A (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5083091A (en) * 1986-04-23 1992-01-21 Rosemount, Inc. Charged balanced feedback measurement circuit
JP2685748B2 (ja) * 1986-07-11 1997-12-03 日本ヒューレット・パッカード株式会社 回路定数測定器
US4912976A (en) * 1987-06-26 1990-04-03 Beckman Instruments, Inc. Liquid level sensing apparatus
US4914041A (en) * 1988-02-12 1990-04-03 Beckman Instruments, Inc. Reagent and method for detecting rheumatoid factor
US4847551A (en) * 1988-05-17 1989-07-11 Universite Du Quebec A Trois-Rivieres Apparatus for measuring capacitance of a low value three-terminal capacitor with a resonance technique
US5495130A (en) * 1990-09-04 1996-02-27 Magnetrol International, Incorporated Point level switch
JPH0697246B2 (ja) * 1991-07-25 1994-11-30 株式会社ジャルコ Ｐｌｌ回路を用いた浮遊容量の変化検出方法
US5402072A (en) * 1992-02-28 1995-03-28 International Business Machines Corporation System and method for testing and fault isolation of high density passive boards and substrates
US6456096B1 (en) * 2000-05-08 2002-09-24 Ut-Battelle, Llc Monolithically compatible impedance measurement
US6496019B1 (en) * 2000-08-18 2002-12-17 Setra Systems, Inc. Temperature compensated pressure sensor network
US6516672B2 (en) 2001-05-21 2003-02-11 Rosemount Inc. Sigma-delta analog to digital converter for capacitive pressure sensor and process transmitter
JP4455201B2 (ja) * 2004-07-20 2010-04-21 富士通マイクロエレクトロニクス株式会社 検出回路
GB201011785D0 (en) * 2010-07-13 2010-08-25 Oxford Rf Sensors Ltd Permittivity sensor
EP2905901B1 (fr) * 2014-02-06 2019-12-18 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Bamberg Procédé et dispositif de détermination d'une capacité et/ou d'une modification de capacité d'un élément de construction capacitif
WO2018215615A1 (fr) * 2017-05-24 2018-11-29 Elmos Semiconductor Aktiengesellschaft Dispositif et procédé servant à mesurer une capacité de mesure
CN110749779B (zh) * 2019-12-05 2021-08-24 上海芯凌微电子有限公司 电容式传感器电容变化检测方法及电路

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2940037A (en) * 1957-12-16 1960-06-07 Lockheed Aircraft Corp Capacitance meter
US3325727A (en) * 1964-11-05 1967-06-13 Honeywell Inc Capacity measuring device including an integrating analog to digital converter
US3487300A (en) * 1967-09-18 1969-12-30 Robertshaw Controls Co Capacitance to current transducer employing capacitor charged to preset voltage by constant current and feedback current related to capacitance change
US3626285A (en) * 1969-08-04 1971-12-07 Kev Electronics Corp Testing apparatus for voltage-variable capacitors employing phase-locked oscillators

Also Published As

Publication number Publication date
GB1417681A (en) 1975-12-17
NL7316123A (fr) 1974-05-31
IT1009058B (it) 1976-12-10
FR2208121A1 (fr) 1974-06-21
JPS506377A (fr) 1975-01-23
DE2359527A1 (de) 1974-05-30
US3896374A (en) 1975-07-22

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Legal Events

Date Code Title Description
ST Notification of lapse