Title:
MAGNET FOR SENSOR AND METHOD OF MAGNETIZING THE SAME
Document Type and Number:
Japanese Patent JP2007059463
Kind Code:
A
Abstract:
To provide a method of magnetizing a magnet for a sensor by which no disturbed flow of magnetic flux to a magnetized surface occurs and accurate magnetization can be realized.
When an annular magnet for a sensor is magnetized on multipole in the radial directions by a magnetizing yoke, upper and lower ends of the magnet excluded for magnetization are magnetized while they are being pinched with a holding member made of a non-magnetic material. As a result, magnetization conditions of surfaces not subject to magnetization become identical, resulting in permitting accurate magnetization as well as eliminating disturbed magnetic flux when the magnet is used.
Inventors:
KOYAMA MUTSUMI
Application Number:
JP2005239968A
Publication Date:
March 08, 2007
Filing Date:
August 22, 2005
Export Citation:
Assignee:
NSK LTD
International Classes:
H01F13/00; G01D5/245
Attorney, Agent or Firm:
Yuzo Agata
Sadayoshi Igarashi
Susumu Kitano
Sadayoshi Igarashi
Susumu Kitano
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