AU4761785A - Inductive loop detector - Google Patents

Inductive loop detector

Info

Publication number
AU4761785A
AU4761785A AU47617/85A AU4761785A AU4761785A AU 4761785 A AU4761785 A AU 4761785A AU 47617/85 A AU47617/85 A AU 47617/85A AU 4761785 A AU4761785 A AU 4761785A AU 4761785 A AU4761785 A AU 4761785A
Authority
AU
Australia
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.)
Granted
Application number
AU47617/85A
Other versions
AU585894B2 (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 Pty Ltd
Original Assignee
ELECTROMATIC Pty Ltd
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 ELECTROMATIC Pty Ltd filed Critical ELECTROMATIC Pty Ltd
Publication of AU4761785A publication Critical patent/AU4761785A/en
Application granted granted Critical
Publication of AU585894B2 publication Critical patent/AU585894B2/en
Anticipated expiration legal-status Critical
Ceased 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
AU47617/85A 1984-09-24 1985-09-19 Inductive loop detector Ceased AU585894B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB848424096A GB8424096D0 (en) 1984-09-24 1984-09-24 Inductive loop detector
GB8424096 1984-09-24

Publications (2)

Publication Number Publication Date
AU4761785A true AU4761785A (en) 1986-04-10
AU585894B2 AU585894B2 (en) 1989-06-29

Family

ID=10567179

Family Applications (1)

Application Number Title Priority Date Filing Date
AU47617/85A Ceased AU585894B2 (en) 1984-09-24 1985-09-19 Inductive loop detector

Country Status (5)

Country Link
AU (1) AU585894B2 (en)
DE (1) DE3533769A1 (en)
FR (1) FR2570857A1 (en)
GB (2) GB8424096D0 (en)
ZA (1) ZA8507319D (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3514833A1 (en) * 1985-04-24 1986-11-06 Siemens AG, 1000 Berlin und 8000 München INDUCTIVE PROXIMITY SWITCH
DE3546245C3 (en) * 1985-12-28 1994-11-17 Link Walter Non-contact proximity switch
CN109951669B (en) * 2019-04-18 2021-08-06 浙江西谷数字技术股份有限公司 Building intercom indoor terminal and security detection method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3492637A (en) * 1965-11-29 1970-01-27 Singer General Precision Inductive loop vehicle detector
US3683351A (en) * 1970-01-07 1972-08-08 Merton F Wilcox Presence detector
GB1366875A (en) * 1971-11-15 1974-09-11 Plessey Co Ltd Vehicle detection systems
US3875555A (en) * 1973-05-29 1975-04-01 Indicator Controls Corp Vehicle detection system
CA1047623A (en) * 1974-02-21 1979-01-30 Canoga Controls Corporation Inductive loop vehicle detector
BE862377A (en) * 1977-12-27 1978-06-27 Centre Rech Metallurgique DEVICE FOR DETECTING THE PRESENCE OF A MOVING ROLLED METAL PRODUCT
US4472706A (en) * 1981-11-30 1984-09-18 Hodge Patrick M Vehicle presence loop detector

Also Published As

Publication number Publication date
GB8523201D0 (en) 1985-10-23
GB8424096D0 (en) 1984-10-31
GB2165651A (en) 1986-04-16
DE3533769A1 (en) 1986-04-03
FR2570857A1 (en) 1986-03-28
ZA8507319D (en) 1986-05-28
AU585894B2 (en) 1989-06-29

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