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Patent Searching and Data


Title:
磁気エンコーダの製造方法
Document Type and Number:
Japanese Patent JP4018313
Kind Code:
B2
Abstract:
A magnetization yoke (11) having an exciting coil (12) wound thereon is arranged to hold a magnetic member (1) and a metal ring (2) so that a magnetic flux passes through and magnetizes the magnetic member (1) in the portion held by the magnetization yoke (11) for successively magnetizing the magnetic member (1) along the circumferential direction thereby multipolarly magnetizing the magnetic member (1) in the circumferential direction. Thus, a magnetic encoder having large magnetization strength and a small magnetization pitch error, a wheel bearing employing the same and a method of manufacturing a magnetic encoder can be obtained.

Inventors:
Ken Iwamoto
Takashi Koike
Kazuyuki Iguchi
Application Number:
JP2000055798A
Publication Date:
December 05, 2007
Filing Date:
March 01, 2000
Export Citation:
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Assignee:
ntn corporation
International Classes:
G01P3/487; F16C19/18; F16C19/52; G01D5/245; G01P3/44; H01F13/00
Domestic Patent References:
JP10115628A
JP11006744A
JP11257998A
JP10300514A
JP9126752A
JP2097261A
JP6082819U
JP11264739A
JP10253646A
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Hiroyuki Yoshida
Hidehiko Ito