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BE893088A - DEVICE FOR THE DETECTION OF METAL OBJECTS - Google Patents

DEVICE FOR THE DETECTION OF METAL OBJECTS

Info

Publication number
BE893088A
BE893088A BE0/208015A BE208015A BE893088A BE 893088 A BE893088 A BE 893088A BE 0/208015 A BE0/208015 A BE 0/208015A BE 208015 A BE208015 A BE 208015A BE 893088 A BE893088 A BE 893088A
Authority
BE
Belgium
Prior art keywords
detection
metal objects
objects
metal
Prior art date
Application number
BE0/208015A
Other languages
French (fr)
Original Assignee
Bofors Ab
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 Bofors Ab filed Critical Bofors Ab
Publication of BE893088A publication Critical patent/BE893088A/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
    • G01V3/104—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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
BE0/208015A 1981-05-06 1982-05-06 DEVICE FOR THE DETECTION OF METAL OBJECTS BE893088A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8102827A SE426269B (en) 1981-05-06 1981-05-06 DEVICE FOR THE DETECTION OF METAL FORMS

Publications (1)

Publication Number Publication Date
BE893088A true BE893088A (en) 1982-08-30

Family

ID=20343740

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/208015A BE893088A (en) 1981-05-06 1982-05-06 DEVICE FOR THE DETECTION OF METAL OBJECTS

Country Status (11)

Country Link
JP (1) JPS57192887A (en)
BE (1) BE893088A (en)
CA (1) CA1198165A (en)
CH (1) CH656231A5 (en)
DE (1) DE3217033A1 (en)
FR (1) FR2505508B1 (en)
GB (1) GB2097933B (en)
IT (1) IT1147941B (en)
NL (1) NL8201811A (en)
NO (1) NO821485L (en)
SE (1) SE426269B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59141001A (en) * 1983-02-01 1984-08-13 Mitsubishi Electric Corp Detecting method for effective end position of metallic pipe
SE470289B (en) * 1992-11-04 1994-01-10 Bofors Ab Magnetic zone tube
US5426363A (en) * 1993-04-26 1995-06-20 Kabushiki Kaisha Honda Denshi Giken Object detecting device
EP2291685A1 (en) * 2008-06-27 2011-03-09 Minelab Electronics PTY LTD Constant current metal detector with driven transmit coil

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB835128A (en) * 1955-09-17 1960-05-18 Asea Ab Apparatus for examining a substance utilising the effect of the substance on the q factor of a resonant circuit
DE2052989C3 (en) * 1970-10-30 1973-11-08 Guenther Dipl.-Ing. 2209 Sushoern Weber Switching device triggered by one or more moving objects
GB1448877A (en) * 1973-09-04 1976-09-08 Weber G Electronic switching device for sensing a body and for converting such sensing into an electrical signal
GB1561641A (en) * 1976-08-05 1980-02-27 Redland Automation Ltd Presence detector apparatus
LU75628A1 (en) * 1976-08-19 1978-04-13
DE2722511A1 (en) * 1977-05-18 1978-11-30 Voll Walter METAL DETECTOR
DE2722498C3 (en) * 1977-05-18 1982-02-04 Walter Ing.(Grad.) 8728 Hassfurt Voll Device on a motor vehicle for displaying a minimum distance

Also Published As

Publication number Publication date
GB2097933B (en) 1985-05-15
FR2505508B1 (en) 1985-11-29
IT8248333A0 (en) 1982-05-05
GB2097933A (en) 1982-11-10
CH656231A5 (en) 1986-06-13
NO821485L (en) 1982-11-08
DE3217033C2 (en) 1991-01-03
CA1198165A (en) 1985-12-17
IT1147941B (en) 1986-11-26
FR2505508A1 (en) 1982-11-12
NL8201811A (en) 1982-12-01
DE3217033A1 (en) 1982-11-25
SE426269B (en) 1982-12-20
SE8102827L (en) 1982-11-07
JPS57192887A (en) 1982-11-27

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: A.B. BOFORS

Effective date: 19930531