FR2639438B1 - DEVICE FOR DETECTING METAL MASSES - Google Patents

DEVICE FOR DETECTING METAL MASSES

Info

Publication number
FR2639438B1
FR2639438B1 FR8815105A FR8815105A FR2639438B1 FR 2639438 B1 FR2639438 B1 FR 2639438B1 FR 8815105 A FR8815105 A FR 8815105A FR 8815105 A FR8815105 A FR 8815105A FR 2639438 B1 FR2639438 B1 FR 2639438B1
Authority
FR
France
Prior art keywords
detecting metal
metal masses
masses
detecting
metal
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 - Fee Related
Application number
FR8815105A
Other languages
French (fr)
Other versions
FR2639438A1 (en
Inventor
Jean-Paul Martin
Jean-Claude Moisand
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.)
Cga Hbs
Original Assignee
Cga Hbs
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 Cga Hbs filed Critical Cga Hbs
Priority to FR8815105A priority Critical patent/FR2639438B1/en
Publication of FR2639438A1 publication Critical patent/FR2639438A1/en
Application granted granted Critical
Publication of FR2639438B1 publication Critical patent/FR2639438B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
FR8815105A 1988-11-21 1988-11-21 DEVICE FOR DETECTING METAL MASSES Expired - Fee Related FR2639438B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8815105A FR2639438B1 (en) 1988-11-21 1988-11-21 DEVICE FOR DETECTING METAL MASSES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8815105A FR2639438B1 (en) 1988-11-21 1988-11-21 DEVICE FOR DETECTING METAL MASSES

Publications (2)

Publication Number Publication Date
FR2639438A1 FR2639438A1 (en) 1990-05-25
FR2639438B1 true FR2639438B1 (en) 1991-02-01

Family

ID=9372034

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8815105A Expired - Fee Related FR2639438B1 (en) 1988-11-21 1988-11-21 DEVICE FOR DETECTING METAL MASSES

Country Status (1)

Country Link
FR (1) FR2639438B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2820537B1 (en) * 2001-02-08 2004-06-25 Atoll Technology MAGNETIC DETECTOR OF VEHICLE WHEELS

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61243597A (en) * 1985-04-19 1986-10-29 オムロン株式会社 Vehicle sensor
FR2592513B1 (en) * 1985-12-30 1988-02-05 Camps Robert VIDEO-MOBILE MONITORING DEVICE
FR2603759B1 (en) * 1986-09-08 1988-11-10 Camps Robert MONITORING DEVICE IN PARTICULAR BY VIDEO CAMERA

Also Published As

Publication number Publication date
FR2639438A1 (en) 1990-05-25

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Legal Events

Date Code Title Description
ST Notification of lapse