FR1213663A - Detection system - Google Patents

Detection system

Info

Publication number
FR1213663A
FR1213663A FR1213663DA FR1213663A FR 1213663 A FR1213663 A FR 1213663A FR 1213663D A FR1213663D A FR 1213663DA FR 1213663 A FR1213663 A FR 1213663A
Authority
FR
France
Prior art keywords
detection system
detection
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
Other languages
French (fr)
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil 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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Application granted granted Critical
Publication of FR1213663A publication Critical patent/FR1213663A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/088—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices operating with electric fields
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
FR1213663D 1958-09-26 1958-09-26 Detection system Expired FR1213663A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1213663T 1958-09-26

Publications (1)

Publication Number Publication Date
FR1213663A true FR1213663A (en) 1960-04-04

Family

ID=9676609

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1213663D Expired FR1213663A (en) 1958-09-26 1958-09-26 Detection system

Country Status (1)

Country Link
FR (1) FR1213663A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3199096A (en) * 1960-09-14 1965-08-03 Specialties Dev Corp Capacity alarm system
US3222664A (en) * 1962-12-03 1965-12-07 Honeywell Inc Detection apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3199096A (en) * 1960-09-14 1965-08-03 Specialties Dev Corp Capacity alarm system
US3222664A (en) * 1962-12-03 1965-12-07 Honeywell Inc Detection apparatus

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