| 简介 |
PROBLEM TO BE SOLVED : To provide a solid magnetic encoder highly wear resistible and manufacturable at a low cost while improving magnetism.
SOLUTION : This magnetic encoder 10 is constructed of a mutlipole magnets 14 having magnetic poles alternately formed in the circumference direction. The multipole magnet 14 is formed of a sintered material prepared by sintering mixture powder of magnetic powder and non-magnetic metal powder. The mixture powder includes two or more kinds of magnetic powder. For example, the mixture powder includes inexpensive ferrite powder and rare-earth magnetic powder producing strong magnetism. |
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