GB1240561A - Improvements in or relating to methods of comparing two unknown electrical valves - Google Patents

Improvements in or relating to methods of comparing two unknown electrical valves

Info

Publication number
GB1240561A
GB1240561A GB4738/69A GB473869A GB1240561A GB 1240561 A GB1240561 A GB 1240561A GB 4738/69 A GB4738/69 A GB 4738/69A GB 473869 A GB473869 A GB 473869A GB 1240561 A GB1240561 A GB 1240561A
Authority
GB
United Kingdom
Prior art keywords
signals
change
over switch
comparing
count
Prior art date
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
GB4738/69A
Other languages
English (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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of GB1240561A publication Critical patent/GB1240561A/en
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
    • H03M1/10—Calibration or testing
    • H03M1/1071—Measuring or testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
GB4738/69A 1968-02-01 1969-01-29 Improvements in or relating to methods of comparing two unknown electrical valves Expired GB1240561A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH156368 1968-02-01

Publications (1)

Publication Number Publication Date
GB1240561A true GB1240561A (en) 1971-07-28

Family

ID=4213341

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4738/69A Expired GB1240561A (en) 1968-02-01 1969-01-29 Improvements in or relating to methods of comparing two unknown electrical valves

Country Status (3)

Country Link
DE (1) DE1904593A1 (enExample)
FR (1) FR1597106A (enExample)
GB (1) GB1240561A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2296851A1 (fr) * 1975-01-03 1976-07-30 Hofmann Maschf Geb Procede et dispositif pour l'affichage numerique de valeurs electriques de mesure et/ou d'essai

Also Published As

Publication number Publication date
DE1904593A1 (de) 1969-08-28
FR1597106A (enExample) 1970-06-22

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