GB2146128B - Metal detection apparatus - Google Patents

Metal detection apparatus

Info

Publication number
GB2146128B
GB2146128B GB08421920A GB8421920A GB2146128B GB 2146128 B GB2146128 B GB 2146128B GB 08421920 A GB08421920 A GB 08421920A GB 8421920 A GB8421920 A GB 8421920A GB 2146128 B GB2146128 B GB 2146128B
Authority
GB
United Kingdom
Prior art keywords
detection apparatus
metal detection
metal
detection
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
GB08421920A
Other versions
GB8421920D0 (en
GB2146128A (en
Inventor
Bruce Goring Kerr
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.)
Goring Kerr PLC
Original Assignee
Goring Kerr PLC
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 Goring Kerr PLC filed Critical Goring Kerr PLC
Publication of GB8421920D0 publication Critical patent/GB8421920D0/en
Publication of GB2146128A publication Critical patent/GB2146128A/en
Application granted granted Critical
Publication of GB2146128B publication Critical patent/GB2146128B/en
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

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)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB08421920A 1983-08-30 1984-08-30 Metal detection apparatus Expired GB2146128B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838323246A GB8323246D0 (en) 1983-08-30 1983-08-30 Metal detection apparatus

Publications (3)

Publication Number Publication Date
GB8421920D0 GB8421920D0 (en) 1984-10-03
GB2146128A GB2146128A (en) 1985-04-11
GB2146128B true GB2146128B (en) 1986-12-31

Family

ID=10548053

Family Applications (2)

Application Number Title Priority Date Filing Date
GB838323246A Pending GB8323246D0 (en) 1983-08-30 1983-08-30 Metal detection apparatus
GB08421920A Expired GB2146128B (en) 1983-08-30 1984-08-30 Metal detection apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB838323246A Pending GB8323246D0 (en) 1983-08-30 1983-08-30 Metal detection apparatus

Country Status (1)

Country Link
GB (2) GB8323246D0 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231292A1 (en) * 1985-08-06 1987-08-12 Consolidated Technology Pty. Ltd. Detector device
GB8607747D0 (en) * 1986-03-27 1986-04-30 Duracell Int Device
US4949452A (en) * 1987-06-01 1990-08-21 Barkley & Dexter Laboratories, Inc. Method for making search coil assembly for metal detectors
US4833773A (en) * 1987-06-01 1989-05-30 Barkley & Dexter Laboratories, Inc. Method for making search coil assembly for metal detectors
US4819321A (en) * 1987-08-18 1989-04-11 Barkley & Dexter Laboratories, Inc. Method for making the search coil assembly for metal detectors
US4870381A (en) * 1987-06-01 1989-09-26 Barkley & Dexter Laboratories, Inc. Search coil assembly for metal detectors
US4903395A (en) * 1987-06-01 1990-02-27 Barkley & Dexter Laboratories, Inc. Method for making search coil assembly for metal detectors
US4902997A (en) * 1987-06-01 1990-02-20 Barkley & Dexter Laboratories, Inc. Search coil assembly for metal detectors
US4814734A (en) * 1987-08-18 1989-03-21 Barkley & Dexter Laboratories, Inc. Search coil assembly for metal detectors
GB2279757B (en) * 1990-11-16 1995-06-07 Moonstone Technology Ltd Device for determining the presence and/or characteristics of an object or a substance
US5307042A (en) * 1992-02-19 1994-04-26 B&D Liquidation Corp. Search coil frame assembly for metal and method for making same
US6177113B1 (en) * 1995-06-27 2001-01-23 Apv Crepaco, Inc. Process for detecting plastic or elastomeric contaminants in food processing
JP3907210B2 (en) * 1996-03-29 2007-04-18 マシェク，フーベルトゥス Field sensor and apparatus for measuring electric and / or magnetic field and method thereof
DE102010028722A1 (en) * 2010-05-07 2011-11-10 Robert Bosch Gmbh Detecting a metallic or magnetic object

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB286301A (en) * 1927-03-04 1928-10-04 Hermann Kolitsch Improvements in or relating to methods for the separation from one another of bodies of different composition, shape or size
GB302725A (en) * 1927-12-21 1929-10-24 Krupp Fried Grusonwerk Ag Improvements in or relating to the separation of materials of different physical qualities especially of raw mining products
GB818740A (en) * 1957-07-10 1959-08-19 Metrawatt Ag Improvements relating to electronic detecting appliances
GB1297804A (en) * 1968-12-03 1972-11-29

Also Published As

Publication number Publication date
GB8323246D0 (en) 1983-09-28
GB8421920D0 (en) 1984-10-03
GB2146128A (en) 1985-04-11

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Legal Events

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

Effective date: 19920830