ZA8507319D - Inductive loop detector - Google Patents

Inductive loop detector

Info

Publication number
ZA8507319D
ZA8507319D ZA19857319D ZA8507319D ZA8507319D ZA 8507319 D ZA8507319 D ZA 8507319D ZA 19857319 D ZA19857319 D ZA 19857319D ZA 8507319 D ZA8507319 D ZA 8507319D ZA 8507319 D ZA8507319 D ZA 8507319D
Authority
ZA
South Africa
Prior art keywords
inductive loop
loop detector
detector
inductive
loop
Prior art date
Application number
ZA19857319D
Inventor
David Arthur Buttemer
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 ZA8507319D publication Critical patent/ZA8507319D/en

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
ZA19857319D 1984-09-24 1985-09-24 Inductive loop detector ZA8507319D (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ZA8507319D true ZA8507319D (en) 1986-05-28

Family

ID=10567179

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA19857319D ZA8507319D (en) 1984-09-24 1985-09-24 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
GB8424096D0 (en) 1984-10-31
AU4761785A (en) 1986-04-10
DE3533769A1 (en) 1986-04-03
GB8523201D0 (en) 1985-10-23
GB2165651A (en) 1986-04-16
FR2570857A1 (en) 1986-03-28
AU585894B2 (en) 1989-06-29

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