FR2076468A5 - - Google Patents

Info

Publication number
FR2076468A5
FR2076468A5 FR7001481A FR7001481A FR2076468A5 FR 2076468 A5 FR2076468 A5 FR 2076468A5 FR 7001481 A FR7001481 A FR 7001481A FR 7001481 A FR7001481 A FR 7001481A FR 2076468 A5 FR2076468 A5 FR 2076468A5
Authority
FR
France
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
FR7001481A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7001481A priority Critical patent/FR2076468A5/fr
Application granted granted Critical
Publication of FR2076468A5 publication Critical patent/FR2076468A5/fr
Priority to BE6044401A priority patent/BE809070Q/xx
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • 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
    • G01V3/10—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 using induction coils
    • G01V3/104—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 using induction coils using several coupled or uncoupled coils
    • G01V3/105—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 using induction coils using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
FR7001481A 1970-01-14 1970-01-14 Expired FR2076468A5 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7001481A FR2076468A5 (ja) 1970-01-14 1970-01-14
BE6044401A BE809070Q (fr) 1970-01-14 1973-12-21 Perfectionnements aux dispositifs electromagnetiques propres a deceler les objets metalliques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7001481A FR2076468A5 (ja) 1970-01-14 1970-01-14

Publications (1)

Publication Number Publication Date
FR2076468A5 true FR2076468A5 (ja) 1971-10-15

Family

ID=9049109

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7001481A Expired FR2076468A5 (ja) 1970-01-14 1970-01-14

Country Status (2)

Country Link
BE (1) BE809070Q (ja)
FR (1) FR2076468A5 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402255A1 (fr) * 1977-08-31 1979-03-30 Knogo Corp Dispositif electronique de detection de vol destine a surveiller de larges passages
WO1989005530A1 (en) * 1987-12-10 1989-06-15 Uniscan Ltd. Antenna structure for providing a uniform field
WO2003048808A2 (en) * 2001-10-25 2003-06-12 The Johns Hopkins University Wide area metal detection (wamd) system and method for security screening crowds
WO2008028487A1 (en) * 2006-09-07 2008-03-13 Alert Metalguard Aps A system and a method for electronically monitoring goods

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402255A1 (fr) * 1977-08-31 1979-03-30 Knogo Corp Dispositif electronique de detection de vol destine a surveiller de larges passages
WO1989005530A1 (en) * 1987-12-10 1989-06-15 Uniscan Ltd. Antenna structure for providing a uniform field
WO2003048808A2 (en) * 2001-10-25 2003-06-12 The Johns Hopkins University Wide area metal detection (wamd) system and method for security screening crowds
WO2003048808A3 (en) * 2001-10-25 2003-10-23 Univ Johns Hopkins Wide area metal detection (wamd) system and method for security screening crowds
US6970086B2 (en) 2001-10-25 2005-11-29 The Johns Hopkins University Wide area metal detection (WAMD) system and method for security screening crowds
WO2008028487A1 (en) * 2006-09-07 2008-03-13 Alert Metalguard Aps A system and a method for electronically monitoring goods

Also Published As

Publication number Publication date
BE809070Q (fr) 1974-04-16

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse