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GB2499239B - Metal detector - Google Patents

Metal detector

Info

Publication number
GB2499239B
GB2499239B GB1202324.8A GB201202324A GB2499239B GB 2499239 B GB2499239 B GB 2499239B GB 201202324 A GB201202324 A GB 201202324A GB 2499239 B GB2499239 B GB 2499239B
Authority
GB
United Kingdom
Prior art keywords
metal detector
detector
metal
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.)
Active
Application number
GB1202324.8A
Other versions
GB2499239A (en
GB201202324D0 (en
Inventor
Colin Michael Tagg
John Colin Moore
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Priority to GB1202324.8A priority Critical patent/GB2499239B/en
Publication of GB201202324D0 publication Critical patent/GB201202324D0/en
Priority to EP13705341.9A priority patent/EP2812734B1/en
Priority to CN201380009028.5A priority patent/CN104246539B/en
Priority to US14/377,522 priority patent/US10215875B2/en
Priority to PL17194641T priority patent/PL3287815T3/en
Priority to CA2859084A priority patent/CA2859084C/en
Priority to PCT/US2013/025040 priority patent/WO2013119741A1/en
Priority to EP17194641.1A priority patent/EP3287815B1/en
Priority to BR112014019417-3A priority patent/BR112014019417B1/en
Publication of GB2499239A publication Critical patent/GB2499239A/en
Application granted granted Critical
Publication of GB2499239B publication Critical patent/GB2499239B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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

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)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
GB1202324.8A 2012-02-10 2012-02-10 Metal detector Active GB2499239B (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB1202324.8A GB2499239B (en) 2012-02-10 2012-02-10 Metal detector
PCT/US2013/025040 WO2013119741A1 (en) 2012-02-10 2013-02-07 Metal detector
CN201380009028.5A CN104246539B (en) 2012-02-10 2013-02-07 Metal detector
US14/377,522 US10215875B2 (en) 2012-02-10 2013-02-07 Metal detector
PL17194641T PL3287815T3 (en) 2012-02-10 2013-02-07 Metal detector
CA2859084A CA2859084C (en) 2012-02-10 2013-02-07 Metal detector
EP13705341.9A EP2812734B1 (en) 2012-02-10 2013-02-07 Metal detector
EP17194641.1A EP3287815B1 (en) 2012-02-10 2013-02-07 Metal detector
BR112014019417-3A BR112014019417B1 (en) 2012-02-10 2013-02-07 METHOD OF BALANCING AN OUTPUT SIGNAL OF A VARIABLE FREQUENCY METAL DETECTOR AND METAL DETECTOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1202324.8A GB2499239B (en) 2012-02-10 2012-02-10 Metal detector

Publications (3)

Publication Number Publication Date
GB201202324D0 GB201202324D0 (en) 2012-03-28
GB2499239A GB2499239A (en) 2013-08-14
GB2499239B true GB2499239B (en) 2014-02-12

Family

ID=45929930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1202324.8A Active GB2499239B (en) 2012-02-10 2012-02-10 Metal detector

Country Status (1)

Country Link
GB (1) GB2499239B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ307498B6 (en) * 2018-01-23 2018-10-17 Konštrukta-TireTech A detector and a locator of ferromagnetic inclusions in a continuously passing medium
EP3521863B1 (en) * 2018-02-01 2024-07-10 Mettler-Toledo Safeline Limited Method for operating a multi-frequency metal detector and multi-frequency metal detector
CN108761561A (en) * 2018-08-08 2018-11-06 无锡大东机械制造有限公司 Horizontal metal detection machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4563645A (en) * 1981-02-09 1986-01-07 Goring Kerr Limited Inductively balanced oscillatory coil current for metal detection
WO1988003273A1 (en) * 1986-10-23 1988-05-05 Peerless-Winsmith, Inc. Detection/identification apparatus
JPH0792274A (en) * 1993-09-24 1995-04-07 Nippon Cement Co Ltd Automatic balance-adjusting circuit of metal detector
JPH09304352A (en) * 1996-05-21 1997-11-28 Nippon Cement Co Ltd Metal detector
US5729143A (en) * 1996-06-03 1998-03-17 Zircon Corporation Metal detector with nulling of imbalance
WO2002025318A1 (en) * 2000-09-22 2002-03-28 Safeline Limited Metal detector
US20090021251A1 (en) * 2007-07-19 2009-01-22 Simon Joseph S Balancing circuit for a metal detector

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4563645A (en) * 1981-02-09 1986-01-07 Goring Kerr Limited Inductively balanced oscillatory coil current for metal detection
WO1988003273A1 (en) * 1986-10-23 1988-05-05 Peerless-Winsmith, Inc. Detection/identification apparatus
JPH0792274A (en) * 1993-09-24 1995-04-07 Nippon Cement Co Ltd Automatic balance-adjusting circuit of metal detector
JPH09304352A (en) * 1996-05-21 1997-11-28 Nippon Cement Co Ltd Metal detector
US5729143A (en) * 1996-06-03 1998-03-17 Zircon Corporation Metal detector with nulling of imbalance
WO2002025318A1 (en) * 2000-09-22 2002-03-28 Safeline Limited Metal detector
US20090021251A1 (en) * 2007-07-19 2009-01-22 Simon Joseph S Balancing circuit for a metal detector

Also Published As

Publication number Publication date
GB2499239A (en) 2013-08-14
GB201202324D0 (en) 2012-03-28

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