FR1447966A - Movement detector - Google Patents

Movement detector

Info

Publication number
FR1447966A
FR1447966A FR988843A FR988843A FR1447966A FR 1447966 A FR1447966 A FR 1447966A FR 988843 A FR988843 A FR 988843A FR 988843 A FR988843 A FR 988843A FR 1447966 A FR1447966 A FR 1447966A
Authority
FR
France
Prior art keywords
movement detector
detector
movement
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
FR988843A
Other languages
French (fr)
Inventor
Claude A Daguillon
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 filed Critical
Priority to FR988843A priority Critical patent/FR1447966A/en
Application granted granted Critical
Publication of FR1447966A publication Critical patent/FR1447966A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR 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
    • G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems
    • G08B13/1618—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means
    • G08B13/1627—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means using Doppler shift detection circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
FR988843A 1964-09-22 1964-09-22 Movement detector Expired FR1447966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR988843A FR1447966A (en) 1964-09-22 1964-09-22 Movement detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR988843A FR1447966A (en) 1964-09-22 1964-09-22 Movement detector

Publications (1)

Publication Number Publication Date
FR1447966A true FR1447966A (en) 1966-08-05

Family

ID=8838773

Family Applications (1)

Application Number Title Priority Date Filing Date
FR988843A Expired FR1447966A (en) 1964-09-22 1964-09-22 Movement detector

Country Status (1)

Country Link
FR (1) FR1447966A (en)

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