CA1047623A - Dispositif a boucle inductive pour detecter les vehicules - Google Patents

Dispositif a boucle inductive pour detecter les vehicules

Info

Publication number
CA1047623A
CA1047623A CA219,940A CA219940A CA1047623A CA 1047623 A CA1047623 A CA 1047623A CA 219940 A CA219940 A CA 219940A CA 1047623 A CA1047623 A CA 1047623A
Authority
CA
Canada
Prior art keywords
loop
counter
duration
vehicle
count
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
CA219,940A
Other languages
English (en)
Inventor
Ralph J. Koerner
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.)
CANOGA CONTROLS CORP
Original Assignee
CANOGA CONTROLS CORP
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 CANOGA CONTROLS CORP filed Critical CANOGA CONTROLS CORP
Priority to CA315,526A priority Critical patent/CA1065033A/fr
Application granted granted Critical
Publication of CA1047623A publication Critical patent/CA1047623A/fr
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
    • G01V3/10—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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Geophysics (AREA)
  • Traffic Control Systems (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Geophysics And Detection Of Objects (AREA)
CA219,940A 1974-02-21 1975-02-12 Dispositif a boucle inductive pour detecter les vehicules Expired CA1047623A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA315,526A CA1065033A (fr) 1974-02-21 1978-10-31 Detecteur de vehicule avec boucle d'induction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44451974A 1974-02-21 1974-02-21

Publications (1)

Publication Number Publication Date
CA1047623A true CA1047623A (fr) 1979-01-30

Family

ID=23765249

Family Applications (1)

Application Number Title Priority Date Filing Date
CA219,940A Expired CA1047623A (fr) 1974-02-21 1975-02-12 Dispositif a boucle inductive pour detecter les vehicules

Country Status (4)

Country Link
JP (1) JPS50124682A (fr)
CA (1) CA1047623A (fr)
DE (1) DE2507632B2 (fr)
GB (1) GB1448967A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL184645C (nl) * 1979-08-09 1989-09-18 Philips Nv Werkwijze voor het bepalen van de snelheid van een voertuig.
GB2131994B (en) * 1982-12-02 1986-09-03 Sarasota Automation Inductive loop sensors
FR2538915B1 (fr) * 1983-01-03 1985-10-25 Bernard Jacques Dispositif et procede de detection d'objets metalliques tels que les armes a feu, et sas d'acces de locaux a proteger contre les agressions
GB8424096D0 (en) * 1984-09-24 1984-10-31 Buttemer D A Inductive loop detector
CN116203315B (zh) * 2023-05-06 2023-07-25 国仪量子(合肥)技术有限公司 频率测量方法及装置

Also Published As

Publication number Publication date
JPS50124682A (fr) 1975-09-30
DE2507632A1 (de) 1975-08-28
AU7767175A (en) 1976-07-29
GB1448967A (en) 1976-09-08
DE2507632B2 (de) 1976-09-16

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