FR2404229B1 - - Google Patents

Info

Publication number
FR2404229B1
FR2404229B1 FR7728758A FR7728758A FR2404229B1 FR 2404229 B1 FR2404229 B1 FR 2404229B1 FR 7728758 A FR7728758 A FR 7728758A FR 7728758 A FR7728758 A FR 7728758A FR 2404229 B1 FR2404229 B1 FR 2404229B1
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
FR7728758A
Other languages
French (fr)
Other versions
FR2404229A1 (en
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.)
Testut Aequitas SA
Original Assignee
Testut Aequitas SA
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 Testut Aequitas SA filed Critical Testut Aequitas SA
Priority to FR7728758A priority Critical patent/FR2404229A1/en
Priority to GB7837875A priority patent/GB2006970B/en
Priority to SE7809966A priority patent/SE431683B/en
Priority to IT84136/78A priority patent/IT1107425B/en
Priority to US05/945,413 priority patent/US4187460A/en
Priority to CA311,976A priority patent/CA1099340A/en
Priority to DE2842028A priority patent/DE2842028C3/en
Publication of FR2404229A1 publication Critical patent/FR2404229A1/en
Application granted granted Critical
Publication of FR2404229B1 publication Critical patent/FR2404229B1/fr
Granted 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/252—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques using analogue/digital converters of the type with conversion of voltage or current into frequency and measuring of this frequency
FR7728758A 1977-09-23 1977-09-23 Normalised capacitance measuring device - has stable oscillator feeding up=down counter circuit including memory system Granted FR2404229A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7728758A FR2404229A1 (en) 1977-09-23 1977-09-23 Normalised capacitance measuring device - has stable oscillator feeding up=down counter circuit including memory system
GB7837875A GB2006970B (en) 1977-09-23 1978-09-22 Capacitance measuring device
SE7809966A SE431683B (en) 1977-09-23 1978-09-22 DEVICE FOR Saturation of the capacitance of a capacitor
IT84136/78A IT1107425B (en) 1977-09-23 1978-09-25 DEVICE TO MEASURE THE CAPACITY OF A CAPACITOR
US05/945,413 US4187460A (en) 1977-09-23 1978-09-25 Capacitance measuring by comparison to reference capacitance
CA311,976A CA1099340A (en) 1977-09-23 1978-09-25 Capacitance measuring device
DE2842028A DE2842028C3 (en) 1977-09-23 1978-09-25 Device for measuring the capacitance of a capacitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7728758A FR2404229A1 (en) 1977-09-23 1977-09-23 Normalised capacitance measuring device - has stable oscillator feeding up=down counter circuit including memory system

Publications (2)

Publication Number Publication Date
FR2404229A1 FR2404229A1 (en) 1979-04-20
FR2404229B1 true FR2404229B1 (en) 1981-08-21

Family

ID=9195727

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7728758A Granted FR2404229A1 (en) 1977-09-23 1977-09-23 Normalised capacitance measuring device - has stable oscillator feeding up=down counter circuit including memory system

Country Status (1)

Country Link
FR (1) FR2404229A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2475231A1 (en) * 1980-02-04 1981-08-07 Testut Aequitas CAPACITY MEASURING DEVICE, IN PARTICULAR FOR A WEIGHTING INSTRUMENT
FR2584822B1 (en) * 1985-07-09 1988-06-17 Thomson Csf DEVICE FOR MEASURING THE REPORT OF TWO CAPACITIES OF LOW VALUES

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2142732B1 (en) * 1971-06-24 1975-02-07 Commissariat Energie Atomique
FR2254779B1 (en) * 1973-12-18 1980-02-08 Roulements Soc Nouvelle

Also Published As

Publication number Publication date
FR2404229A1 (en) 1979-04-20

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Legal Events

Date Code Title Description
ST Notification of lapse