JPS5662303A - Internal magnetism type magnetic circuit for meter - Google Patents

Internal magnetism type magnetic circuit for meter

Info

Publication number
JPS5662303A
JPS5662303A JP13886879A JP13886879A JPS5662303A JP S5662303 A JPS5662303 A JP S5662303A JP 13886879 A JP13886879 A JP 13886879A JP 13886879 A JP13886879 A JP 13886879A JP S5662303 A JPS5662303 A JP S5662303A
Authority
JP
Japan
Prior art keywords
permanent magnet
meter
magnet
magnetic circuit
type magnetic
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
JP13886879A
Other languages
Japanese (ja)
Inventor
Michio Yamashita
Katsushi Tanaka
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.)
Hitachi Metals Ltd
Original Assignee
Sumitomo Special Metals 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 Sumitomo Special Metals Co Ltd filed Critical Sumitomo Special Metals Co Ltd
Priority to JP13886879A priority Critical patent/JPS5662303A/en
Publication of JPS5662303A publication Critical patent/JPS5662303A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Powder Metallurgy (AREA)

Abstract

PURPOSE:To facilitate manufacturing of a meter and to improve its precision, by composing an internal magnetism type magnetic circuit for the meter of an oval shape powder-sintered permanent magnet having anisotropy in the direction of short axis and a yoke surrounding this magnet. CONSTITUTION:A permanent magnet 1 of an inside core is provided with an oval shape and an anisotropy in the direction of a short axis, and distribution of gap magnetic flux density between the permanent magnet 1 and a yoke 2 surrounding the magnet is evened. As this oval permanent magnet is manufactured into a powder-sintered permanent magnet by powder metallurgy process, it can be formed into an oval shape from the very beginning, and moreover, its characteristics as a magnet is uniform and dimensional accuracy is excellent. Further, the center of the permanent magnet were to be off, the distribution of the gap magnetic flux density and the level remain almost unvaried.
JP13886879A 1979-10-26 1979-10-26 Internal magnetism type magnetic circuit for meter Pending JPS5662303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13886879A JPS5662303A (en) 1979-10-26 1979-10-26 Internal magnetism type magnetic circuit for meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13886879A JPS5662303A (en) 1979-10-26 1979-10-26 Internal magnetism type magnetic circuit for meter

Publications (1)

Publication Number Publication Date
JPS5662303A true JPS5662303A (en) 1981-05-28

Family

ID=15231995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13886879A Pending JPS5662303A (en) 1979-10-26 1979-10-26 Internal magnetism type magnetic circuit for meter

Country Status (1)

Country Link
JP (1) JPS5662303A (en)

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