FR2322375A1 - PULSE FREQUENCY MEASURING APPARATUS, WITH LOGARITHMIC CHARACTERISTICS - Google Patents

PULSE FREQUENCY MEASURING APPARATUS, WITH LOGARITHMIC CHARACTERISTICS

Info

Publication number
FR2322375A1
FR2322375A1 FR7625610A FR7625610A FR2322375A1 FR 2322375 A1 FR2322375 A1 FR 2322375A1 FR 7625610 A FR7625610 A FR 7625610A FR 7625610 A FR7625610 A FR 7625610A FR 2322375 A1 FR2322375 A1 FR 2322375A1
Authority
FR
France
Prior art keywords
measuring apparatus
pulse frequency
frequency measuring
logarithmic characteristics
logarithmic
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.)
Granted
Application number
FR7625610A
Other languages
French (fr)
Other versions
FR2322375B1 (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
Original Assignee
Siemens AG
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 filed Critical Siemens AG
Publication of FR2322375A1 publication Critical patent/FR2322375A1/en
Application granted granted Critical
Publication of FR2322375B1 publication Critical patent/FR2322375B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/005—Circuits for altering the indicating characteristic, e.g. making it non-linear
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/10—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into a train of pulses, which are then counted, i.e. converting the signal into a square wave

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Analogue/Digital Conversion (AREA)
FR7625610A 1975-08-27 1976-08-24 PULSE FREQUENCY MEASURING APPARATUS, WITH LOGARITHMIC CHARACTERISTICS Granted FR2322375A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752538185 DE2538185C3 (en) 1975-08-27 1975-08-27 Digital pulse rate meter with approximately logarithmic characteristic

Publications (2)

Publication Number Publication Date
FR2322375A1 true FR2322375A1 (en) 1977-03-25
FR2322375B1 FR2322375B1 (en) 1980-04-30

Family

ID=5954987

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7625610A Granted FR2322375A1 (en) 1975-08-27 1976-08-24 PULSE FREQUENCY MEASURING APPARATUS, WITH LOGARITHMIC CHARACTERISTICS

Country Status (4)

Country Link
DE (1) DE2538185C3 (en)
FR (1) FR2322375A1 (en)
GB (1) GB1509162A (en)
IT (1) IT1066892B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909921A1 (en) * 1979-03-14 1980-09-25 Itt Ind Gmbh Deutsche SOUND CHANNEL SWITCHING FOR FREQUENCY MODULATED SIGNALS
DE2941697A1 (en) * 1979-10-15 1981-04-30 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen Measuring frequency of pulse series by summation - using defined time increments and comparison with summation limit value

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1045975A (en) * 1963-06-28 1966-10-19 Atomic Energy Authority Uk Period meter and logarithmic ratemeter
DE1254687B (en) * 1963-07-04 1967-11-23 Landis & Gyr Ag Device for measuring small pulse rates

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1045975A (en) * 1963-06-28 1966-10-19 Atomic Energy Authority Uk Period meter and logarithmic ratemeter
DE1254687B (en) * 1963-07-04 1967-11-23 Landis & Gyr Ag Device for measuring small pulse rates

Also Published As

Publication number Publication date
IT1066892B (en) 1985-03-12
FR2322375B1 (en) 1980-04-30
DE2538185A1 (en) 1977-03-03
GB1509162A (en) 1978-04-26
DE2538185B2 (en) 1979-01-04
DE2538185C3 (en) 1979-08-30

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Legal Events

Date Code Title Description
ST Notification of lapse