IT971567B - DIFFERENCE INDICATOR ELECTRONIC DEVICE - Google Patents

DIFFERENCE INDICATOR ELECTRONIC DEVICE

Info

Publication number
IT971567B
IT971567B IT32515/72A IT3251572A IT971567B IT 971567 B IT971567 B IT 971567B IT 32515/72 A IT32515/72 A IT 32515/72A IT 3251572 A IT3251572 A IT 3251572A IT 971567 B IT971567 B IT 971567B
Authority
IT
Italy
Prior art keywords
electronic device
difference indicator
indicator electronic
difference
indicator
Prior art date
Application number
IT32515/72A
Other languages
Italian (it)
Original Assignee
Schlumberger Compteurs
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 Compteurs filed Critical Schlumberger Compteurs
Application granted granted Critical
Publication of IT971567B publication Critical patent/IT971567B/en

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)
  • Indicating Measured Values (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
IT32515/72A 1971-12-10 1972-12-05 DIFFERENCE INDICATOR ELECTRONIC DEVICE IT971567B (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
IT971567B true IT971567B (en) 1974-05-10

Family

ID=9087274

Family Applications (1)

Application Number Title Priority Date Filing Date
IT32515/72A IT971567B (en) 1971-12-10 1972-12-05 DIFFERENCE INDICATOR ELECTRONIC DEVICE

Country Status (5)

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

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 (en) 1973-05-14
GB1396027A (en) 1975-05-29
FR2162309A1 (en) 1973-07-20
ES409471A1 (en) 1975-11-16
FR2162309B1 (en) 1976-02-13

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