GB2164185B - Inductive loop detector - Google Patents

Inductive loop detector

Info

Publication number
GB2164185B
GB2164185B GB08521300A GB8521300A GB2164185B GB 2164185 B GB2164185 B GB 2164185B GB 08521300 A GB08521300 A GB 08521300A GB 8521300 A GB8521300 A GB 8521300A GB 2164185 B GB2164185 B GB 2164185B
Authority
GB
United Kingdom
Prior art keywords
inductive loop
loop detector
detector
inductive
loop
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
GB08521300A
Other versions
GB8521300D0 (en
GB2164185A (en
Inventor
David Arthur Buttemer
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.)
ELECTROMATIC
Original Assignee
ELECTROMATIC
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
Priority claimed from GB848421715A external-priority patent/GB8421715D0/en
Application filed by ELECTROMATIC filed Critical ELECTROMATIC
Priority to GB08521300A priority Critical patent/GB2164185B/en
Publication of GB8521300D0 publication Critical patent/GB8521300D0/en
Publication of GB2164185A publication Critical patent/GB2164185A/en
Application granted granted Critical
Publication of GB2164185B publication Critical patent/GB2164185B/en
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
GB08521300A 1984-08-28 1985-08-27 Inductive loop detector Expired GB2164185B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08521300A GB2164185B (en) 1984-08-28 1985-08-27 Inductive loop detector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB848421715A GB8421715D0 (en) 1984-08-28 1984-08-28 Loop detector
GB08521300A GB2164185B (en) 1984-08-28 1985-08-27 Inductive loop detector

Publications (3)

Publication Number Publication Date
GB8521300D0 GB8521300D0 (en) 1985-10-02
GB2164185A GB2164185A (en) 1986-03-12
GB2164185B true GB2164185B (en) 1988-05-11

Family

ID=26288160

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08521300A Expired GB2164185B (en) 1984-08-28 1985-08-27 Inductive loop detector

Country Status (1)

Country Link
GB (1) GB2164185B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8800546A (en) * 1988-03-04 1989-10-02 Nedap Nv ONE-WINDING ANTENNA COIL FOR WIRELESS ELECTROMAGNETIC DETECTION SYSTEM.
WO2007033407A1 (en) 2005-09-20 2007-03-29 Allflex Australia Pty. Limited Portal antenna

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB979471A (en) * 1962-07-26 1965-01-06 David Ashley Pears Vehicle sensing systems
US3363247A (en) * 1967-05-05 1968-01-09 Gen Electric Identification system
US3790776A (en) * 1971-07-13 1974-02-05 W Rawlins Track signal responsive to variable frequency
GB2125598B (en) * 1982-06-03 1986-01-15 Microsense Systems Ltd Induction loop vehicle detector

Also Published As

Publication number Publication date
GB8521300D0 (en) 1985-10-02
GB2164185A (en) 1986-03-12

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940827