FR2485751B1 - - Google Patents

Info

Publication number
FR2485751B1
FR2485751B1 FR8112295A FR8112295A FR2485751B1 FR 2485751 B1 FR2485751 B1 FR 2485751B1 FR 8112295 A FR8112295 A FR 8112295A FR 8112295 A FR8112295 A FR 8112295A FR 2485751 B1 FR2485751 B1 FR 2485751B1
Authority
FR
France
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
FR8112295A
Other languages
French (fr)
Other versions
FR2485751A1 (en
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.)
Schonstedt Instrument Co LLC
Original Assignee
Schonstedt Instrument Co LLC
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 Schonstedt Instrument Co LLC filed Critical Schonstedt Instrument Co LLC
Publication of FR2485751A1 publication Critical patent/FR2485751A1/en
Application granted granted Critical
Publication of FR2485751B1 publication Critical patent/FR2485751B1/fr
Granted 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
    • G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/022—Measuring gradient

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Measuring Magnetic Variables (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
FR8112295A 1980-06-24 1981-06-23 MAGNETIC DETECTION APPARATUS Granted FR2485751A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16248980A 1980-06-24 1980-06-24

Publications (2)

Publication Number Publication Date
FR2485751A1 FR2485751A1 (en) 1981-12-31
FR2485751B1 true FR2485751B1 (en) 1984-11-30

Family

ID=22585840

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8112295A Granted FR2485751A1 (en) 1980-06-24 1981-06-23 MAGNETIC DETECTION APPARATUS

Country Status (7)

Country Link
JP (1) JPS5730965A (en)
CA (1) CA1177891A (en)
DE (1) DE3124255C2 (en)
FR (1) FR2485751A1 (en)
GB (1) GB2078968B (en)
NO (1) NO155025C (en)
SE (1) SE445956B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135460B (en) * 1983-01-20 1987-10-07 Scopemoor Ltd Detecting hidden objects
EP0125741B1 (en) * 1983-01-20 1990-08-08 Scopemoor Limited Detector for buried objects
JPH0792499B2 (en) * 1984-08-08 1995-10-09 三菱電機株式会社 Magnetic field probe positioning device
FR2582905B1 (en) * 1985-06-07 1989-08-25 Agot Aime DETECTION DEVICE FOR ANIMALS.
GB2230341B (en) * 1989-01-28 1994-01-05 Cambridge Engineering Design L Apparatus for and method of measuring magnetic flux density
DE4210905A1 (en) * 1992-04-02 1993-10-07 Steingroever Magnet Physik Magnetic field sensor with acoustic indicator - uses magnetic field dependent sensor which transmits acoustic signal proportional to strength or direction of magnetic field
DE4232466A1 (en) * 1992-09-28 1994-03-31 Klaus Ebinger Magnetometer probe
US9841421B2 (en) 2010-11-30 2017-12-12 Koninklijke Philips N.V. Sensor device for magnetically actuated particles

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2966853A (en) * 1941-10-27 1961-01-03 Jr Edward S Gilfillan Buoyant mine with gradiometer
US2981885A (en) * 1958-07-21 1961-04-25 Erick O Schonstedt Saturable measuring device and magnetic core therefor
US3050679A (en) * 1960-02-18 1962-08-21 Erick O Schonstedt Device for detecting or measuring magnetic fields
US3487459A (en) * 1968-03-28 1969-12-30 Erick O Schonstedt Induced magnetic compensation for misalignment of magnetic gradiometer sensors
US3488579A (en) * 1969-04-01 1970-01-06 Erick O Schonstedt Magnetic gradiometer apparatus with misalignment compensation
US3757209A (en) * 1972-02-11 1973-09-04 E Schonstedt Compensation for misalignment of magnetic sensors
US3961245A (en) * 1974-11-20 1976-06-01 Schonstedt Instrument Company Magnetic locator having improved sensors
DE2929404C2 (en) * 1979-07-20 1983-10-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Differential field probe

Also Published As

Publication number Publication date
NO155025B (en) 1986-10-20
NO155025C (en) 1987-01-28
JPS5730965A (en) 1982-02-19
DE3124255A1 (en) 1982-06-24
FR2485751A1 (en) 1981-12-31
SE8103541L (en) 1981-12-25
GB2078968B (en) 1984-07-25
DE3124255C2 (en) 1985-05-09
GB2078968A (en) 1982-01-13
NO811927L (en) 1981-12-28
SE445956B (en) 1986-07-28
CA1177891A (en) 1984-11-13

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Legal Events

Date Code Title Description
ST Notification of lapse