AU2692088A - Search head for metal detectors - Google Patents

Search head for metal detectors

Info

Publication number
AU2692088A
AU2692088A AU26920/88A AU2692088A AU2692088A AU 2692088 A AU2692088 A AU 2692088A AU 26920/88 A AU26920/88 A AU 26920/88A AU 2692088 A AU2692088 A AU 2692088A AU 2692088 A AU2692088 A AU 2692088A
Authority
AU
Australia
Prior art keywords
search head
metal detectors
detectors
metal
search
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
AU26920/88A
Other versions
AU620577B2 (en
Inventor
Anthony John Maher
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.)
Detection Systems Pty Ltd
Original Assignee
Detection Systems 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 Detection Systems Pty Ltd filed Critical Detection Systems Pty Ltd
Priority to AU26920/88A priority Critical patent/AU620577B2/en
Publication of AU2692088A publication Critical patent/AU2692088A/en
Application granted granted Critical
Publication of AU620577B2 publication Critical patent/AU620577B2/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
    • G01V3/104—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 using several coupled or uncoupled coils
    • G01V3/105—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 using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops
    • G01V3/107—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 using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops using compensating coil or loop arrangements

Landscapes

  • 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)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
AU26920/88A 1987-12-17 1988-12-15 Search head for metal detectors Ceased AU620577B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU26920/88A AU620577B2 (en) 1987-12-17 1988-12-15 Search head for metal detectors

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPI596487 1987-12-17
AUPI5964 1987-12-17
AU26920/88A AU620577B2 (en) 1987-12-17 1988-12-15 Search head for metal detectors

Related Child Applications (1)

Application Number Title Priority Date Filing Date
AU87019/91A Division AU652967B2 (en) 1987-12-17 1991-11-06 Search head for metal detectors

Publications (2)

Publication Number Publication Date
AU2692088A true AU2692088A (en) 1989-06-29
AU620577B2 AU620577B2 (en) 1992-02-20

Family

ID=25620099

Family Applications (1)

Application Number Title Priority Date Filing Date
AU26920/88A Ceased AU620577B2 (en) 1987-12-17 1988-12-15 Search head for metal detectors

Country Status (1)

Country Link
AU (1) AU620577B2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2110825B (en) * 1981-11-06 1986-04-30 Outokumpu Oy Apparatus for detecting metal objects
AU602132B2 (en) * 1985-11-26 1990-10-04 Bhc Consulting Pty Ltd Metal detector sensing head with reduced eddy current coils

Also Published As

Publication number Publication date
AU620577B2 (en) 1992-02-20

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired