FR2428262A1 - Dispositif convertisseur frequence-intensite, en particulier pour instruments indicateurs - Google Patents

Dispositif convertisseur frequence-intensite, en particulier pour instruments indicateurs

Info

Publication number
FR2428262A1
FR2428262A1 FR7914623A FR7914623A FR2428262A1 FR 2428262 A1 FR2428262 A1 FR 2428262A1 FR 7914623 A FR7914623 A FR 7914623A FR 7914623 A FR7914623 A FR 7914623A FR 2428262 A1 FR2428262 A1 FR 2428262A1
Authority
FR
France
Prior art keywords
indicator
emitter follower
zener diode
base
input
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
FR7914623A
Other languages
English (en)
French (fr)
Other versions
FR2428262B1 (enrdf_load_stackoverflow
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 Istrumenti Misura SpA
Original Assignee
Cgs Istrumenti Misura SpA
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 Istrumenti Misura SpA filed Critical Cgs Istrumenti Misura SpA
Publication of FR2428262A1 publication Critical patent/FR2428262A1/fr
Application granted granted Critical
Publication of FR2428262B1 publication Critical patent/FR2428262B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/4802—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general
    • G01P3/4807—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general by using circuits for the detection of the pulses delivered by the ignition system of an internal combustion engine
    • 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)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Amplifiers (AREA)
  • Measurement Of Current Or Voltage (AREA)
FR7914623A 1978-06-08 1979-06-07 Dispositif convertisseur frequence-intensite, en particulier pour instruments indicateurs Granted FR2428262A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT7824347A IT1206614B (it) 1978-06-08 1978-06-08 Dispositivo convertitore frequenza-corrente, particolarmente per strumenti indicatori.

Publications (2)

Publication Number Publication Date
FR2428262A1 true FR2428262A1 (fr) 1980-01-04
FR2428262B1 FR2428262B1 (enrdf_load_stackoverflow) 1984-02-10

Family

ID=11213197

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7914623A Granted FR2428262A1 (fr) 1978-06-08 1979-06-07 Dispositif convertisseur frequence-intensite, en particulier pour instruments indicateurs

Country Status (3)

Country Link
DE (1) DE2922902A1 (enrdf_load_stackoverflow)
FR (1) FR2428262A1 (enrdf_load_stackoverflow)
IT (1) IT1206614B (enrdf_load_stackoverflow)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1253458A (en) * 1969-02-08 1971-11-17 Gen Motors Ltd Electronic tachometer
FR2090246A1 (enrdf_load_stackoverflow) * 1970-05-23 1972-01-14 Itt
US3992660A (en) * 1974-01-18 1976-11-16 Nippondenso Co., Ltd. Frequency-current conversion circuit
FR2396978A1 (fr) * 1978-07-07 1979-02-02 Cgs Apparecch Convertisseur frequence-intensite de courant, en particulier pour instruments indicateurs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1253458A (en) * 1969-02-08 1971-11-17 Gen Motors Ltd Electronic tachometer
FR2090246A1 (enrdf_load_stackoverflow) * 1970-05-23 1972-01-14 Itt
US3992660A (en) * 1974-01-18 1976-11-16 Nippondenso Co., Ltd. Frequency-current conversion circuit
FR2396978A1 (fr) * 1978-07-07 1979-02-02 Cgs Apparecch Convertisseur frequence-intensite de courant, en particulier pour instruments indicateurs

Also Published As

Publication number Publication date
IT1206614B (it) 1989-04-27
IT7824347A0 (it) 1978-06-08
FR2428262B1 (enrdf_load_stackoverflow) 1984-02-10
DE2922902A1 (de) 1979-12-20

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Legal Events

Date Code Title Description
ST Notification of lapse