FR2148376B1 - - Google Patents

Info

Publication number
FR2148376B1
FR2148376B1 FR7129508A FR7129508A FR2148376B1 FR 2148376 B1 FR2148376 B1 FR 2148376B1 FR 7129508 A FR7129508 A FR 7129508A FR 7129508 A FR7129508 A FR 7129508A FR 2148376 B1 FR2148376 B1 FR 2148376B1
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
FR7129508A
Other versions
FR2148376A1 (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.)
Schlumberger Instruments et Systemes SA
Original Assignee
Schlumberger Instruments et Systemes 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 Schlumberger Instruments et Systemes SA filed Critical Schlumberger Instruments et Systemes SA
Priority to FR7129508A priority Critical patent/FR2148376B1/fr
Priority to GB3776172A priority patent/GB1400565A/en
Publication of FR2148376A1 publication Critical patent/FR2148376A1/fr
Application granted granted Critical
Publication of FR2148376B1 publication Critical patent/FR2148376B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01R19/255—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 counting of pulses during a period of time proportional to voltage or current, delivered by a pulse generator with fixed frequency
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)
FR7129508A 1971-08-12 1971-08-12 Expired FR2148376B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7129508A FR2148376B1 (fr) 1971-08-12 1971-08-12
GB3776172A GB1400565A (en) 1971-08-12 1972-08-14 Analogue-to-digital converters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7129508A FR2148376B1 (fr) 1971-08-12 1971-08-12

Publications (2)

Publication Number Publication Date
FR2148376A1 FR2148376A1 (fr) 1973-03-23
FR2148376B1 true FR2148376B1 (fr) 1975-04-18

Family

ID=9081799

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7129508A Expired FR2148376B1 (fr) 1971-08-12 1971-08-12

Country Status (2)

Country Link
FR (1) FR2148376B1 (fr)
GB (1) GB1400565A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549149A (en) * 1983-04-08 1985-10-22 Warner-Lambert Technologies, Inc. Current to frequency converter switched to increased frequency when current input low
DE3472304D1 (en) * 1984-01-09 1988-07-28 Leybold Ag Method and circuit for converting a measuring current into an impulse rate proportional to the measuring current
US4939519A (en) * 1986-02-03 1990-07-03 Thaler Corporation Apparatus for method and a high precision analog-to-digital converter

Also Published As

Publication number Publication date
GB1400565A (en) 1975-07-16
FR2148376A1 (fr) 1973-03-23

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Legal Events

Date Code Title Description
ST Notification of lapse