GB995307A - Improvements in or relating to apparatus for measuring magnetic fields - Google Patents

Improvements in or relating to apparatus for measuring magnetic fields

Info

Publication number
GB995307A
GB995307A GB3656263A GB3656263A GB995307A GB 995307 A GB995307 A GB 995307A GB 3656263 A GB3656263 A GB 3656263A GB 3656263 A GB3656263 A GB 3656263A GB 995307 A GB995307 A GB 995307A
Authority
GB
United Kingdom
Prior art keywords
field
strength
magnetization
sept
coil
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
GB3656263A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB995307A publication Critical patent/GB995307A/en
Expired 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
    • G01R33/04—Measuring direction or magnitude of magnetic fields or magnetic flux using the flux-gate principle
    • G01R33/05—Measuring direction or magnitude of magnetic fields or magnetic flux using the flux-gate principle in thin-film element

Abstract

995, 307. Magnetic testing apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 17, 1963 [Sept. 20, 1962], No. 36562/63. Heading G1N. The strength of a magnetic field is determined by measuring the times set which the field in a thin film of uniaxial anisotropic magnetic material 3, placed in the field, and subjected also to a field parallel to the film and its preferred direction of magnetization which is variable in strength in a manner periodically to reverse the direction of magnetization : the times of reversal being indicated by pulses generated in a coil 4 by the reversals. The varying field is generated by a coil 2 energized by a source 1 to produce a field varying linearly with time and having equal rise and decay times. Reference pulses are produced by a unit 7 as the current passes through zero, and the time intervals T 1 , T 2 , T 3 , T 4 are used in devices 8 and 6 to give a measure of the field strength in the preferred direction, and in a direction at right angles thereto.
GB3656263A 1962-09-20 1963-09-17 Improvements in or relating to apparatus for measuring magnetic fields Expired GB995307A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL283457 1962-09-20

Publications (1)

Publication Number Publication Date
GB995307A true GB995307A (en) 1965-06-16

Family

ID=19754125

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3656263A Expired GB995307A (en) 1962-09-20 1963-09-17 Improvements in or relating to apparatus for measuring magnetic fields

Country Status (1)

Country Link
GB (1) GB995307A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3562638A (en) * 1968-11-18 1971-02-09 Honeywell Inc Thin film magnetometer using magnetic vector rotation
US3621382A (en) * 1968-10-10 1971-11-16 Commissariat Energie Atomique Anistropic thin ferromagnetic film magnetometer
US4050013A (en) * 1976-02-25 1977-09-20 Western Electric Company, Incorporated Magnetic field probe which measures switching current of magnetic element at moment the element switches as measure of external field
GB2271644A (en) * 1992-09-15 1994-04-20 Voltageunit Limited Measurement of magnetic field by exposure of a magnetic crystal to the field and an applied rotating field

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621382A (en) * 1968-10-10 1971-11-16 Commissariat Energie Atomique Anistropic thin ferromagnetic film magnetometer
US3562638A (en) * 1968-11-18 1971-02-09 Honeywell Inc Thin film magnetometer using magnetic vector rotation
US4050013A (en) * 1976-02-25 1977-09-20 Western Electric Company, Incorporated Magnetic field probe which measures switching current of magnetic element at moment the element switches as measure of external field
GB2271644A (en) * 1992-09-15 1994-04-20 Voltageunit Limited Measurement of magnetic field by exposure of a magnetic crystal to the field and an applied rotating field

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