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SE8103541L - MAGNETKENNARE - Google Patents

MAGNETKENNARE

Info

Publication number
SE8103541L
SE8103541L SE8103541A SE8103541A SE8103541L SE 8103541 L SE8103541 L SE 8103541L SE 8103541 A SE8103541 A SE 8103541A SE 8103541 A SE8103541 A SE 8103541A SE 8103541 L SE8103541 L SE 8103541L
Authority
SE
Sweden
Prior art keywords
plug
tube
relative
sensors
axis
Prior art date
Application number
SE8103541A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE445956B (en
Inventor
E O Schonstedt
Original Assignee
Schonstedt Instrument 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 Schonstedt Instrument Co filed Critical Schonstedt Instrument Co
Publication of SE8103541L publication Critical patent/SE8103541L/en
Publication of SE445956B publication Critical patent/SE445956B/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
    • G01V3/15—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)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Measuring Magnetic Variables (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)

Abstract

In magnetic sensing apparatus having a pair of directional magnetic field sensors e.g. fluxgates longitudinally spaced apart in a containing tube (14), mechanical means is provided to compensate for misalignment in the sensor axes. The compensating means takes the form of a non-magnetic member (18) associated with one end of the tube (14) for rotation about the tube axis and a screwed plug (20) of easily magnetizable material contained in a diametrically extending threaded bore (24) formed through the rotatable member (18). Adjustments in the position of the plug (20) relative to the sensors e.g. (A) may thus be made by screwing the plug 20 inwardly and outwardly of the bore (24) to adjust the radial distance of the plug (20) from the axis of the tube and the orientation of the plug (20) relative to the sensors may be adjusted by rotating the member (18) in which it is contained relative to the tube (14). <IMAGE>
SE8103541A 1980-06-24 1981-06-05 MAGNETKENNARANORDNING SE445956B (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
SE8103541L true SE8103541L (en) 1981-12-25
SE445956B SE445956B (en) 1986-07-28

Family

ID=22585840

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8103541A SE445956B (en) 1980-06-24 1981-06-05 MAGNETKENNARANORDNING

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
US4719426A (en) * 1983-01-20 1988-01-12 Scopemoor Limited Method for magnetically detecting a localized disturbance of the ground
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
FR2485751A1 (en) 1981-12-31
GB2078968A (en) 1982-01-13
NO811927L (en) 1981-12-28
DE3124255C2 (en) 1985-05-09
JPS5730965A (en) 1982-02-19
DE3124255A1 (en) 1982-06-24
NO155025C (en) 1987-01-28
CA1177891A (en) 1984-11-13
FR2485751B1 (en) 1984-11-30
NO155025B (en) 1986-10-20
GB2078968B (en) 1984-07-25
SE445956B (en) 1986-07-28

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