FR2396978A1 - Convertisseur frequence-intensite de courant, en particulier pour instruments indicateurs - Google Patents

Convertisseur frequence-intensite de courant, en particulier pour instruments indicateurs

Info

Publication number
FR2396978A1
FR2396978A1 FR7820346A FR7820346A FR2396978A1 FR 2396978 A1 FR2396978 A1 FR 2396978A1 FR 7820346 A FR7820346 A FR 7820346A FR 7820346 A FR7820346 A FR 7820346A FR 2396978 A1 FR2396978 A1 FR 2396978A1
Authority
FR
France
Prior art keywords
frequency
pulse repetition
repetition frequency
function
tachometer
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
FR7820346A
Other languages
English (en)
Other versions
FR2396978B1 (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.)
CGS APPARECCH
Original Assignee
CGS APPARECCH
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 CGS APPARECCH filed Critical CGS APPARECCH
Priority to FR7820346A priority Critical patent/FR2396978A1/fr
Publication of FR2396978A1 publication Critical patent/FR2396978A1/fr
Application granted granted Critical
Publication of FR2396978B1 publication Critical patent/FR2396978B1/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
    • G01R23/06—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

Ce dispositif est caractérisé en ce qu'il comprend un circuit électrique constitué par une série de résistance 7, premier condensateur 8 et première diode de Zener 9 montée entre deux conducteurs d'alimentation 10 et Il, des moyens interrupteurs 12 servant, en position de fermeture à court-circuiter la partie du circuit électrique constituée par le premier condensateur 8 et par la première diode de Zener 9, un amplificateur de courant 13, un second condensateur 20 monté en parallèle avec l'instrurnent indicateur 19, des moyens stabilisateurs 21 et 22 et des moyens de protection 24. Ce dispositif est destiné notamment aux tachymètres de véhicules automobiles.
FR7820346A 1978-07-07 1978-07-07 Convertisseur frequence-intensite de courant, en particulier pour instruments indicateurs Granted FR2396978A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7820346A FR2396978A1 (fr) 1978-07-07 1978-07-07 Convertisseur frequence-intensite de courant, en particulier pour instruments indicateurs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7820346A FR2396978A1 (fr) 1978-07-07 1978-07-07 Convertisseur frequence-intensite de courant, en particulier pour instruments indicateurs

Publications (2)

Publication Number Publication Date
FR2396978A1 true FR2396978A1 (fr) 1979-02-02
FR2396978B1 FR2396978B1 (fr) 1983-08-05

Family

ID=9210474

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7820346A Granted FR2396978A1 (fr) 1978-07-07 1978-07-07 Convertisseur frequence-intensite de courant, en particulier pour instruments indicateurs

Country Status (1)

Country Link
FR (1) FR2396978A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428262A1 (fr) * 1978-06-08 1980-01-04 Cgs Istrumenti Misura Spa Dispositif convertisseur frequence-intensite, en particulier pour instruments indicateurs

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1181981A (fr) * 1956-09-04 1959-06-19 British Thomson Houston Co Ltd Dispositif de mesure de la fréquence de répétition d'impulsions récurrentes
DE1167972B (de) * 1960-03-23 1964-04-16 Gossen & Co Gmbh P Zeigerfrequenzmesser
DE1541895A1 (de) * 1965-11-15 1969-11-06 Westland Aircraft Ltd Frequenzbestimmung auf elektronischem Wege
FR2018116A1 (fr) * 1968-09-14 1970-05-29 Hitachi Ltd
FR2030401A1 (fr) * 1969-02-10 1970-11-13 Motorola Inc
US3723765A (en) * 1971-05-25 1973-03-27 Bendix Corp Linear frequency detector for analog to digital converter
US3992660A (en) * 1974-01-18 1976-11-16 Nippondenso Co., Ltd. Frequency-current conversion circuit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1181981A (fr) * 1956-09-04 1959-06-19 British Thomson Houston Co Ltd Dispositif de mesure de la fréquence de répétition d'impulsions récurrentes
DE1167972B (de) * 1960-03-23 1964-04-16 Gossen & Co Gmbh P Zeigerfrequenzmesser
DE1541895A1 (de) * 1965-11-15 1969-11-06 Westland Aircraft Ltd Frequenzbestimmung auf elektronischem Wege
FR2018116A1 (fr) * 1968-09-14 1970-05-29 Hitachi Ltd
FR2030401A1 (fr) * 1969-02-10 1970-11-13 Motorola Inc
US3723765A (en) * 1971-05-25 1973-03-27 Bendix Corp Linear frequency detector for analog to digital converter
US3992660A (en) * 1974-01-18 1976-11-16 Nippondenso Co., Ltd. Frequency-current conversion circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/68 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428262A1 (fr) * 1978-06-08 1980-01-04 Cgs Istrumenti Misura Spa Dispositif convertisseur frequence-intensite, en particulier pour instruments indicateurs

Also Published As

Publication number Publication date
FR2396978B1 (fr) 1983-08-05

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Legal Events

Date Code Title Description
ST Notification of lapse