Title:
MAGNETIZER OF ENCODER
Document Type and Number:
Japanese Patent JP2008232960
Kind Code:
A
Abstract:
To realize a magnetizer capable of making magnetic intensity of a detected surface of an encoder that can be made substantially uniform in the breadthwise direction of the surface.
Both side rims corresponding to chevron-shaped bends in chevron-shaped leading end surfaces of a pair of magnetic yokes 15a and 15a constituting the magnetizer are defined as curves 16a and 16b, respectively. Use of such a structure alleviates concentration of a magnetic flux between regions corresponding to the chevron-shaped bends in both leading end surfaces, when a magnetic circuit for magnetization is formed between the leading end surfaces of the yokes 15a and 15a. Thus, the problem is solved.
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Inventors:
TAKIZAWA TAKESHI
Application Number:
JP2007075745A
Publication Date:
October 02, 2008
Filing Date:
March 23, 2007
Export Citation:
Assignee:
NSK LTD
International Classes:
G01D5/245; H01F13/00
Attorney, Agent or Firm:
Takeo Koyama
Takashi Daejeon
Masaki Muto
Kinzo Koyama
Takashi Daejeon
Masaki Muto
Kinzo Koyama