FR2447554A1 - Detecteur de seuil pour le controle d'une grandeur alternative - Google Patents

Detecteur de seuil pour le controle d'une grandeur alternative

Info

Publication number
FR2447554A1
FR2447554A1 FR7901949A FR7901949A FR2447554A1 FR 2447554 A1 FR2447554 A1 FR 2447554A1 FR 7901949 A FR7901949 A FR 7901949A FR 7901949 A FR7901949 A FR 7901949A FR 2447554 A1 FR2447554 A1 FR 2447554A1
Authority
FR
France
Prior art keywords
threshold
input
output
variable delay
exceeded
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
FR7901949A
Other languages
English (en)
Other versions
FR2447554B1 (fr
Inventor
Raymond Asfaux
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.)
Safran Data Systems SAS
Original Assignee
Enertec SA
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 Enertec SA filed Critical Enertec SA
Priority to FR7901949A priority Critical patent/FR2447554A1/fr
Publication of FR2447554A1 publication Critical patent/FR2447554A1/fr
Application granted granted Critical
Publication of FR2447554B1 publication Critical patent/FR2447554B1/fr
Granted 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
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
    • G01R19/1658—AC voltage or recurrent signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

DETECTEUR DE SEUIL POUR LE CONTROLE D'UNE GRANDEUR ALTERNATIVE. LA GRANDEUR D'ENTREE EST FILTREE 12 PUIS COMPAREE A UNE GRANDEUR DE REFERENCE DANS UN COMPARATEUR 14 QUI PRODUIT UN SIGNAL DE DEPASSEMENT DONT LA DUREE EST FONCTION DE L'AMPLITUDE DE LA GRANDEUR SURVEILLEE ET DU TEMPS PENDANT LEQUEL CETTE AMPLITUDE RESTE SUPERIEURE AU SEUIL. UN TEMPORISATEUR 16 FOURNIT UN SIGNAL DE SORTIE A PARTIR DU MOMENT OU LA DUREE DU SIGNAL DE DEPASSEMENT EXCEDE UN DELAI VARIABLE TX ET DES MOYENS 20 SONT PREVUS POUR FAIRE VARIER CE DELAI EN FONCTION DE L'AMPLITUDE DE LA GRANDEUR SURVEILLEE POUR ETABLIR UNE RELATION TEMPORELLE PREDETERMINEE INDEPENDANTE DE L'AMPLITUDE DE LA GRANDEUR SURVEILLEE, ENTRE UN EVENEMENT FAISANT INTERVENIR LE DEPASSEMENT DU SEUIL PAR LA GRANDEUR SURVEILLEE ET L'APPARITION DU SIGNAL DE SORTIE. LE DETECTEUR CONVIENT POUR LA PROTECTION DES RESEAUX.
FR7901949A 1979-01-25 1979-01-25 Detecteur de seuil pour le controle d'une grandeur alternative Granted FR2447554A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7901949A FR2447554A1 (fr) 1979-01-25 1979-01-25 Detecteur de seuil pour le controle d'une grandeur alternative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7901949A FR2447554A1 (fr) 1979-01-25 1979-01-25 Detecteur de seuil pour le controle d'une grandeur alternative

Publications (2)

Publication Number Publication Date
FR2447554A1 true FR2447554A1 (fr) 1980-08-22
FR2447554B1 FR2447554B1 (fr) 1982-02-19

Family

ID=9221210

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7901949A Granted FR2447554A1 (fr) 1979-01-25 1979-01-25 Detecteur de seuil pour le controle d'une grandeur alternative

Country Status (1)

Country Link
FR (1) FR2447554A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1321358A (fr) * 1961-05-10 1963-03-15 Rca Corp Montage de temporisation
US3379981A (en) * 1965-02-04 1968-04-23 Navy Usa Pulse width discriminator
FR1561522A (fr) * 1967-03-09 1969-03-28
FR2008303A1 (fr) * 1968-05-11 1970-01-16 Fernseh Gmbh

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1321358A (fr) * 1961-05-10 1963-03-15 Rca Corp Montage de temporisation
US3379981A (en) * 1965-02-04 1968-04-23 Navy Usa Pulse width discriminator
FR1561522A (fr) * 1967-03-09 1969-03-28
FR2008303A1 (fr) * 1968-05-11 1970-01-16 Fernseh Gmbh

Also Published As

Publication number Publication date
FR2447554B1 (fr) 1982-02-19

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Legal Events

Date Code Title Description
ST Notification of lapse