GB2289145B - Magnetic field cancelling system - Google Patents

Magnetic field cancelling system

Info

Publication number
GB2289145B
GB2289145B GB9509178A GB9509178A GB2289145B GB 2289145 B GB2289145 B GB 2289145B GB 9509178 A GB9509178 A GB 9509178A GB 9509178 A GB9509178 A GB 9509178A GB 2289145 B GB2289145 B GB 2289145B
Authority
GB
United Kingdom
Prior art keywords
magnetic field
cancelling system
field cancelling
magnetic
field
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 - Lifetime
Application number
GB9509178A
Other versions
GB9509178D0 (en
GB2289145A (en
Inventor
Denis Frank Spicer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9509178D0 publication Critical patent/GB9509178D0/en
Publication of GB2289145A publication Critical patent/GB2289145A/en
Application granted granted Critical
Publication of GB2289145B publication Critical patent/GB2289145B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G01R33/025—Compensating stray fields

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Magnetic Variables (AREA)
GB9509178A 1994-05-05 1995-05-05 Magnetic field cancelling system Expired - Lifetime GB2289145B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9408942A GB9408942D0 (en) 1994-05-05 1994-05-05 Magnetic field cancelling system

Publications (3)

Publication Number Publication Date
GB9509178D0 GB9509178D0 (en) 1995-06-28
GB2289145A GB2289145A (en) 1995-11-08
GB2289145B true GB2289145B (en) 1998-07-22

Family

ID=10754616

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9408942A Pending GB9408942D0 (en) 1994-05-05 1994-05-05 Magnetic field cancelling system
GB9509178A Expired - Lifetime GB2289145B (en) 1994-05-05 1995-05-05 Magnetic field cancelling system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9408942A Pending GB9408942D0 (en) 1994-05-05 1994-05-05 Magnetic field cancelling system

Country Status (3)

Country Link
AU (1) AU2413295A (en)
GB (2) GB9408942D0 (en)
WO (1) WO1995030906A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5997919B2 (en) * 2012-03-30 2016-09-28 株式会社フジクラ Fluxgate type magnetic element and magnetic sensor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991361A (en) * 1975-03-27 1976-11-09 Westinghouse Electric Corporation Semi-automatic compass calibrator apparatus for a vehicle mounted flux gate compass system to cancel out effect of local magnetic disturbances
GB2154031A (en) * 1984-02-04 1985-08-29 Licentia Gmbh Stray-field-controlled magnetic self-protection
EP0157470A2 (en) * 1984-02-25 1985-10-09 Stc Plc Magnetic field sensor
US5225999A (en) * 1990-07-06 1993-07-06 The Trustees Of The University Of Pennsylvania Magnetic environment stabilization for effective operation of magnetically sensitive instruments

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808508A (en) * 1972-12-14 1974-04-30 Univ Johns Hopkins Temperature compensator for fluxgate magnetometer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991361A (en) * 1975-03-27 1976-11-09 Westinghouse Electric Corporation Semi-automatic compass calibrator apparatus for a vehicle mounted flux gate compass system to cancel out effect of local magnetic disturbances
GB2154031A (en) * 1984-02-04 1985-08-29 Licentia Gmbh Stray-field-controlled magnetic self-protection
EP0157470A2 (en) * 1984-02-25 1985-10-09 Stc Plc Magnetic field sensor
US5225999A (en) * 1990-07-06 1993-07-06 The Trustees Of The University Of Pennsylvania Magnetic environment stabilization for effective operation of magnetically sensitive instruments

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Measurement Science and Technology vol 4 no 4, 1 April 1993,pages 468-472 *

Also Published As

Publication number Publication date
WO1995030906A1 (en) 1995-11-16
GB9509178D0 (en) 1995-06-28
AU2413295A (en) 1995-11-29
GB2289145A (en) 1995-11-08
GB9408942D0 (en) 1994-06-22

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20150504