GB2034479B - Proximity detectors - Google Patents

Proximity detectors

Info

Publication number
GB2034479B
GB2034479B GB7843775A GB7843775A GB2034479B GB 2034479 B GB2034479 B GB 2034479B GB 7843775 A GB7843775 A GB 7843775A GB 7843775 A GB7843775 A GB 7843775A GB 2034479 B GB2034479 B GB 2034479B
Authority
GB
United Kingdom
Prior art keywords
proximity detectors
detectors
proximity
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.)
Expired
Application number
GB7843775A
Other versions
GB2034479A (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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB7843775A priority Critical patent/GB2034479B/en
Publication of GB2034479A publication Critical patent/GB2034479A/en
Application granted granted Critical
Publication of GB2034479B publication Critical patent/GB2034479B/en
Expired 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
    • G01V3/08—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
    • G01V3/101—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
    • G01V3/102—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil by measuring amplitude

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)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
GB7843775A 1978-11-09 1978-11-09 Proximity detectors Expired GB2034479B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7843775A GB2034479B (en) 1978-11-09 1978-11-09 Proximity detectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7843775A GB2034479B (en) 1978-11-09 1978-11-09 Proximity detectors

Publications (2)

Publication Number Publication Date
GB2034479A GB2034479A (en) 1980-06-04
GB2034479B true GB2034479B (en) 1983-05-05

Family

ID=10500902

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7843775A Expired GB2034479B (en) 1978-11-09 1978-11-09 Proximity detectors

Country Status (1)

Country Link
GB (1) GB2034479B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156524A (en) * 1984-03-22 1985-10-09 Cambridge Electronic Ind Tachogenerators
US5670886A (en) * 1991-05-22 1997-09-23 Wolf Controls Corporation Method and apparatus for sensing proximity or position of an object using near-field effects
US5459405A (en) * 1991-05-22 1995-10-17 Wolff Controls Corp. Method and apparatus for sensing proximity of an object using near-field effects
AU696444B2 (en) * 1991-05-22 1998-09-10 Wolff Controls Corporation Method and apparatus for sensing proximity of an object using near-field effects
GB0006144D0 (en) 2000-03-14 2000-05-03 Isis Innovation Position and electromagnetic field sensor
CN114608437B (en) * 2022-03-21 2023-05-05 天津大学 Submarine pipeline bending angle measuring method

Also Published As

Publication number Publication date
GB2034479A (en) 1980-06-04

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee