FR2162309B1 - - Google Patents

Info

Publication number
FR2162309B1
FR2162309B1 FR7144425A FR7144425A FR2162309B1 FR 2162309 B1 FR2162309 B1 FR 2162309B1 FR 7144425 A FR7144425 A FR 7144425A FR 7144425 A FR7144425 A FR 7144425A FR 2162309 B1 FR2162309 B1 FR 2162309B1
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
FR7144425A
Other versions
FR2162309A1 (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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger 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
Priority to BE791399D priority Critical patent/BE791399A/fr
Application filed by Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Priority to FR7144425A priority patent/FR2162309B1/fr
Priority to IT32515/72A priority patent/IT971567B/it
Priority to GB5650272A priority patent/GB1396027A/en
Priority to ES409471A priority patent/ES409471A1/es
Publication of FR2162309A1 publication Critical patent/FR2162309A1/fr
Application granted granted Critical
Publication of FR2162309B1 publication Critical patent/FR2162309B1/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
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/1659—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 to indicate that the value is within or outside a predetermined range of values (window)
    • G01R19/16595—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 to indicate that the value is within or outside a predetermined range of values (window) with multi level indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/40—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect
    • G01R13/404—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values
    • G01R13/405—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values using a plurality of active, i.e. light emitting, e.g. electro-luminescent elements, i.e. bar graphs
    • 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
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/08—Continuously compensating for, or preventing, undesired influence of physical parameters of noise

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Indicating Measured Values (AREA)
FR7144425A 1971-12-10 1971-12-10 Expired FR2162309B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE791399D BE791399A (fr) 1971-12-10 Dispositif electronique indicateur d'ecart
FR7144425A FR2162309B1 (fr) 1971-12-10 1971-12-10
IT32515/72A IT971567B (it) 1971-12-10 1972-12-05 Dispositivo elettronico indicatore di differenza
GB5650272A GB1396027A (en) 1971-12-10 1972-12-07 Electronic display apparatus
ES409471A ES409471A1 (es) 1971-12-10 1972-12-09 Dispositivo electronico de visualizacion de la amplitud y del signo algebraico de una diferencia de potencial variableentre un valor de referencia y un valor de medida.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7144425A FR2162309B1 (fr) 1971-12-10 1971-12-10

Publications (2)

Publication Number Publication Date
FR2162309A1 FR2162309A1 (fr) 1973-07-20
FR2162309B1 true FR2162309B1 (fr) 1976-02-13

Family

ID=9087274

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7144425A Expired FR2162309B1 (fr) 1971-12-10 1971-12-10

Country Status (5)

Country Link
BE (1) BE791399A (fr)
ES (1) ES409471A1 (fr)
FR (1) FR2162309B1 (fr)
GB (1) GB1396027A (fr)
IT (1) IT971567B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1568576A (en) * 1977-05-03 1980-06-04 Chronolog Syst Electrical circuit means for use in analogue display

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3487263A (en) * 1966-07-18 1969-12-30 Aerospace Prod Res Display device with separate means for defining and positioning the symbol

Also Published As

Publication number Publication date
BE791399A (fr) 1973-05-14
IT971567B (it) 1974-05-10
GB1396027A (en) 1975-05-29
FR2162309A1 (fr) 1973-07-20
ES409471A1 (es) 1975-11-16

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Legal Events

Date Code Title Description
ST Notification of lapse