JPS57200875A - Magnetic field vector detector - Google Patents

Magnetic field vector detector

Info

Publication number
JPS57200875A
JPS57200875A JP8671981A JP8671981A JPS57200875A JP S57200875 A JPS57200875 A JP S57200875A JP 8671981 A JP8671981 A JP 8671981A JP 8671981 A JP8671981 A JP 8671981A JP S57200875 A JPS57200875 A JP S57200875A
Authority
JP
Japan
Prior art keywords
magnetic field
field vector
component
detector
correction coefficients
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.)
Pending
Application number
JP8671981A
Other languages
Japanese (ja)
Inventor
Yonosuke Hasegawa
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.)
TOUHOKU KINZOKU KOGYO KK
Tokin Corp
Original Assignee
TOUHOKU KINZOKU KOGYO KK
Tohoku Metal 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 TOUHOKU KINZOKU KOGYO KK, Tohoku Metal Industries Ltd filed Critical TOUHOKU KINZOKU KOGYO KK
Priority to JP8671981A priority Critical patent/JPS57200875A/en
Publication of JPS57200875A publication Critical patent/JPS57200875A/en
Pending 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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

PURPOSE:To enable detection of a magnetic field vector at a high accuracy by determining correction coefficients for the vector in the rectangular cordinate system. CONSTITUTION:A magnetic field vector detector 1 is set on a rotatable base 2 on the geometrical center 0 and the angle of rotation thereof is detected by reading an angular graduation 3 on a fixed base 4. The detector 1 is excited by a.c. with the output of an excitation circuit 2' until the magnetic core thereof is saturated. The x' component and the y' component of each detection coil are synchronously rectified 5' and 6' by extracting second high frequency component with BPFs 3' and 4' and specified phase and time portions are fetched. After an alternate A-D conversion 10 thereof with an analog switch 7, they are sent to a calculalter 11 to compute the absolute value and the magnetic declination thereof and correction coefficients thereof are determined to be memorized into a memory 12.
JP8671981A 1981-06-05 1981-06-05 Magnetic field vector detector Pending JPS57200875A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8671981A JPS57200875A (en) 1981-06-05 1981-06-05 Magnetic field vector detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8671981A JPS57200875A (en) 1981-06-05 1981-06-05 Magnetic field vector detector

Publications (1)

Publication Number Publication Date
JPS57200875A true JPS57200875A (en) 1982-12-09

Family

ID=13894681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8671981A Pending JPS57200875A (en) 1981-06-05 1981-06-05 Magnetic field vector detector

Country Status (1)

Country Link
JP (1) JPS57200875A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS561370A (en) * 1979-06-18 1981-01-09 Tech Res & Dev Inst Of Japan Def Agency Magnetometer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS561370A (en) * 1979-06-18 1981-01-09 Tech Res & Dev Inst Of Japan Def Agency Magnetometer

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