FR2325996A1 - Systeme de controle automatique de sensibilite pour materiels de protection antivol du type volumetrique - Google Patents

Systeme de controle automatique de sensibilite pour materiels de protection antivol du type volumetrique

Info

Publication number
FR2325996A1
FR2325996A1 FR7529489A FR7529489A FR2325996A1 FR 2325996 A1 FR2325996 A1 FR 2325996A1 FR 7529489 A FR7529489 A FR 7529489A FR 7529489 A FR7529489 A FR 7529489A FR 2325996 A1 FR2325996 A1 FR 2325996A1
Authority
FR
France
Prior art keywords
time constant
long time
sensitivity control
automatic sensitivity
integrator
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
FR7529489A
Other languages
English (en)
French (fr)
Other versions
FR2325996B1 (https=
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.)
VOLTAM
Original Assignee
VOLTAM
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 VOLTAM filed Critical VOLTAM
Priority to FR7529489A priority Critical patent/FR2325996A1/fr
Publication of FR2325996A1 publication Critical patent/FR2325996A1/fr
Application granted granted Critical
Publication of FR2325996B1 publication Critical patent/FR2325996B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
    • G08B13/1672—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using sonic detecting means, e.g. a microphone operating in the audio frequency range
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Control Of Amplification And Gain Control (AREA)
FR7529489A 1975-09-26 1975-09-26 Systeme de controle automatique de sensibilite pour materiels de protection antivol du type volumetrique Granted FR2325996A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7529489A FR2325996A1 (fr) 1975-09-26 1975-09-26 Systeme de controle automatique de sensibilite pour materiels de protection antivol du type volumetrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7529489A FR2325996A1 (fr) 1975-09-26 1975-09-26 Systeme de controle automatique de sensibilite pour materiels de protection antivol du type volumetrique

Publications (2)

Publication Number Publication Date
FR2325996A1 true FR2325996A1 (fr) 1977-04-22
FR2325996B1 FR2325996B1 (https=) 1979-07-13

Family

ID=9160474

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7529489A Granted FR2325996A1 (fr) 1975-09-26 1975-09-26 Systeme de controle automatique de sensibilite pour materiels de protection antivol du type volumetrique

Country Status (1)

Country Link
FR (1) FR2325996A1 (https=)

Also Published As

Publication number Publication date
FR2325996B1 (https=) 1979-07-13

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Legal Events

Date Code Title Description
ST Notification of lapse