ES469472A1 - Dispositivo para proporcionar una senal electrica. - Google Patents

Dispositivo para proporcionar una senal electrica.

Info

Publication number
ES469472A1
ES469472A1 ES469472A ES469472A ES469472A1 ES 469472 A1 ES469472 A1 ES 469472A1 ES 469472 A ES469472 A ES 469472A ES 469472 A ES469472 A ES 469472A ES 469472 A1 ES469472 A1 ES 469472A1
Authority
ES
Spain
Prior art keywords
frequency
control circuit
circuit
signal generator
electric signal
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
ES469472A
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of ES469472A1 publication Critical patent/ES469472A1/es
Expired 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
    • G01R23/10—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)
  • Analogue/Digital Conversion (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

Dispositivo para proporcionar una señal eléctrica cuya magnitud es sustancialmente proporcional a la frecuencia de una señal de entrada, comprendiendo dicho dispositivo medios contadores de impulsos que incluyen un generador de impulsos de reloj dispuesto para producir impulsos a intervalos regulares predeterminados y un contador digital; un circuito de control al que se suministra dicha señal de entrada, estando dispuesto el circuito del control para controlar los medios contadores de impulsos de tal modo que el contador digital cuente el número de impulsos producido por el generador de impulsos de reloj durante períodos de tiempo sucesivos, cada uno de los cuales es inversamente proporcional a la frecuencia de dicha señal de entrada; y un convertidor digital-analógico para convertir en una señal eléctrica el número de impulsos contados por el contador digital en cada periodo de tiempo antes citado.
ES469472A 1977-05-14 1978-05-04 Dispositivo para proporcionar una senal electrica. Expired ES469472A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2037877 1977-05-14

Publications (1)

Publication Number Publication Date
ES469472A1 true ES469472A1 (es) 1979-03-16

Family

ID=10144971

Family Applications (1)

Application Number Title Priority Date Filing Date
ES469472A Expired ES469472A1 (es) 1977-05-14 1978-05-04 Dispositivo para proporcionar una senal electrica.

Country Status (5)

Country Link
JP (1) JPS53141563A (es)
DE (1) DE2820362A1 (es)
ES (1) ES469472A1 (es)
FR (1) FR2390770A1 (es)
IT (1) IT1113177B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458815A1 (fr) * 1979-06-12 1981-01-02 Alsthom Atlantique Procede et dispositif de mesure digitale d'une frequence par inversion de periode
DE3048015C2 (de) * 1979-12-21 1986-07-03 Deutsche Zähler-Gesellschaft Nachf. A. Stepper & Co (GmbH & Co), 2000 Hamburg Korrekturschaltung für Elektrizitäts- und Wärmemengenzähler mit elektronischem Meßwerk
JPH02194731A (ja) * 1989-01-24 1990-08-01 Yokogawa Electric Corp Ｆ／ｖコンバータ

Also Published As

Publication number Publication date
DE2820362A1 (de) 1978-11-23
FR2390770A1 (fr) 1978-12-08
IT7823331A0 (it) 1978-05-12
JPS53141563A (en) 1978-12-09
IT1113177B (it) 1986-01-20

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