| 摘要 |
A magnetizing jig used in cooperation with a magnetizing yoke formed with a circular magnetizing face, for fixing a ring-like magnetic encoder base plate to be magnetized thereto and magnetizing it by exciting a multi-pole magnetizing coil provided on the magnetizing yoke. The magnetizing yoke has holding portion to which the magnetic encoder base plate is concentrically held so as to face the circular magnetizing face, whereas the magnetizing jig is incorporated into the magnetizing yoke, keeping a predetermined positional relation which is in advance deviated from the center of the magnetizing yoke so as to correspond to the positional deviation amount between the arrangement center of the multi-pole magnetizing coil and the center of the magnetizing yoke.
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