ZA834188B - Metal detection system - Google Patents

Metal detection system

Info

Publication number
ZA834188B
ZA834188B ZA834188A ZA834188A ZA834188B ZA 834188 B ZA834188 B ZA 834188B ZA 834188 A ZA834188 A ZA 834188A ZA 834188 A ZA834188 A ZA 834188A ZA 834188 B ZA834188 B ZA 834188B
Authority
ZA
South Africa
Prior art keywords
detection system
metal detection
metal
detection
Prior art date
Application number
ZA834188A
Other languages
English (en)
Inventor
Keith Ronald Baker
Original Assignee
Deere & Co
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 Deere & Co filed Critical Deere & Co
Publication of ZA834188B publication Critical patent/ZA834188B/xx

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)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
ZA834188A 1982-06-09 1983-06-08 Metal detection system ZA834188B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38654682A 1982-06-09 1982-06-09

Publications (1)

Publication Number Publication Date
ZA834188B true ZA834188B (en) 1985-01-30

Family

ID=23526053

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA834188A ZA834188B (en) 1982-06-09 1983-06-08 Metal detection system

Country Status (8)

Country Link
EP (1) EP0096568A1 (es)
JP (1) JPS593383A (es)
BR (1) BR8303041A (es)
DE (1) DE96568T1 (es)
DK (1) DK263183A (es)
ES (1) ES8405161A1 (es)
MX (1) MX153689A (es)
ZA (1) ZA834188B (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4613815A (en) * 1983-04-27 1986-09-23 Pall Corporation Electromagnetic detector for metallic materials having an improved phase detection circuit
DE3448564C2 (de) * 1984-10-05 1997-04-24 Truetzschler Gmbh & Co Kg Vorrichtung zum Ermitteln von Fremdkörpern, wie Metallteilen o. dgl. für Textilfaserballen
US4839602A (en) * 1986-11-04 1989-06-13 Philip Morris Incorporated Means for detecting metal in a stream of particulate matter
US4949452A (en) * 1987-06-01 1990-08-21 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
US4833773A (en) * 1987-06-01 1989-05-30 Barkley & Dexter Laboratories, Inc. Method for making 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
JPH03233392A (ja) * 1990-02-09 1991-10-17 Nippon Telegr & Teleph Corp <Ntt> 金属物探知用電磁誘導センサ
GB9014496D0 (en) * 1990-06-29 1990-08-22 Safeline Ltd Metal detectors
GB2261073B (en) * 1990-06-29 1994-02-16 Safeline Ltd Metal detector
WO1992001956A1 (en) * 1990-07-20 1992-02-06 John Lysaght (Australia) Limited Strip position sensor
US5307042A (en) * 1992-02-19 1994-04-26 B&D Liquidation Corp. Search coil frame assembly for metal and method for making same
JPH0821741A (ja) * 1994-07-08 1996-01-23 Seikosha Co Ltd 物体検知装置
GB9902700D0 (en) * 1999-02-09 1999-03-31 Integrated Design Limited Poisition sensing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB501581A (en) * 1937-01-16 1939-03-01 Int Cigar Mach Co An improved method of and apparatus for detecting foreign metallic matter in non-metallic materials
DE1548159B2 (de) * 1966-08-24 1971-04-01 Elektronik Apparatebau GmbH, 8105 Farchant Elektrische schaltanordnung zum auffinden und anzeigen metallischer fremdkoerper in foerderstroemen
US3826973A (en) * 1973-01-10 1974-07-30 Benson R Electromagnetic gradiometer
US4012690A (en) * 1974-01-22 1977-03-15 Solomon Heytow Device for selectively detecting different kinds and sizes of metals

Also Published As

Publication number Publication date
ES523087A0 (es) 1984-05-16
BR8303041A (pt) 1984-01-31
ES8405161A1 (es) 1984-05-16
JPS593383A (ja) 1984-01-10
DK263183D0 (da) 1983-06-09
DE96568T1 (de) 1984-05-10
MX153689A (es) 1986-12-19
EP0096568A1 (en) 1983-12-21
DK263183A (da) 1983-12-10

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