发明名称 MAGNETIZATION METHOD OF MULTI-POLE MAGNET, AND MULTI-POLE MAGNET AND MAGNETIC ENCODER USING THE SAME
摘要 PROBLEM TO BE SOLVED: To provide a multi-pole magnet capable of improving the magnetization accuracy. SOLUTION: In the magnetization method of the multi-pole magnet, a plurality of concavoconvex parts are provided on a side of a magnet material 1, and a magnet material 1, having a plurality of projecting parts 102 corresponding to a plurality of convex 203 of concavoconvex parts contacts with a magnetic yokes 2, in which a magnetizing coil 205 is wound so that a magnetization pattern on which N poles and S poles are aligned alternately on a concave part 204 of concavoconvex parts, to perform a magnetization. It is characterized that a plurality of projecting parts 102 are arranged, face to face with each other on convex 203 of concavoconvex parts of the magnetic yoke 2, and the magnetizing coil 205 is energized, to thereby magnetize a plurality of projecting parts 102. COPYRIGHT: (C)2010,JPO&INPIT
申请公布号 JP2010040914(A) 申请公布日期 2010.02.18
申请号 JP20080204183 申请日期 2008.08.07
申请人 ALPS ELECTRIC CO LTD 发明人 TAKIGAWA MAKITO
分类号 H01F13/00;G01D5/245;H01F7/02 主分类号 H01F13/00
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