FR1517523A - Système détecteur de la présence d'un véhicule - Google Patents

Système détecteur de la présence d'un véhicule

Info

Publication number
FR1517523A
FR1517523A FR101440A FR101440A FR1517523A FR 1517523 A FR1517523 A FR 1517523A FR 101440 A FR101440 A FR 101440A FR 101440 A FR101440 A FR 101440A FR 1517523 A FR1517523 A FR 1517523A
Authority
FR
France
Prior art keywords
detection system
presence detection
vehicle presence
vehicle
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
FR101440A
Other languages
English (en)
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.)
General Precision Inc
Original Assignee
General Precision Inc
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 General Precision Inc filed Critical General Precision Inc
Application granted granted Critical
Publication of FR1517523A publication Critical patent/FR1517523A/fr
Expired 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
    • G01V3/101—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
    • G01V3/102—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil by measuring amplitude

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)
  • Geophysics And Detection Of Objects (AREA)
  • Amplifiers (AREA)
FR101440A 1966-04-04 1967-04-04 Système détecteur de la présence d'un véhicule Expired FR1517523A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53967666A 1966-04-04 1966-04-04

Publications (1)

Publication Number Publication Date
FR1517523A true FR1517523A (fr) 1968-03-15

Family

ID=24152195

Family Applications (1)

Application Number Title Priority Date Filing Date
FR101440A Expired FR1517523A (fr) 1966-04-04 1967-04-04 Système détecteur de la présence d'un véhicule

Country Status (3)

Country Link
US (1) US3451041A (fr)
FR (1) FR1517523A (fr)
GB (1) GB1187145A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688308A (en) * 1969-10-06 1972-08-29 Tokyo Shibaura Electric Co Apparatus for detecting the volume of traffic
US3685013A (en) * 1970-08-14 1972-08-15 Joseph L Brickner Self-adjusting vehicle detector system
US4130792A (en) * 1977-09-30 1978-12-19 Sullivan John W Metal detector with feedback tuning
US4678992A (en) * 1983-07-12 1987-07-07 Hi-Tech Systems, Corp. Electronic metal detector
US4860351A (en) * 1986-11-05 1989-08-22 Ibm Corporation Tamper-resistant packaging for protection of information stored in electronic circuitry
US20070089898A1 (en) * 2005-10-22 2007-04-26 Reno Agriculture And Electronics Multi-sheath multi-conductor cable

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2983852A (en) * 1957-10-31 1961-05-09 Rca Corp Object detection system

Also Published As

Publication number Publication date
GB1187145A (en) 1970-04-08
US3451041A (en) 1969-06-17

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