| 摘要 |
In one preferred embodiment, a linear stepper motor (20), including; a stator structure (32); an axially extending, cylindrical, permanent magnet shaft (30) magnetically interacting with the stator structure (32); and the axially extending, cylindrical, permanent magnet shaft (30) having a smooth surface along a portion thereof with axially alternating radial N and S poles (34, 36) defined in the smooth surface. The present invention also provides a method of magnetizing the shaft of such a motor and a fixture (100) and method of manufacturing the fixture therefor. In another preferred embodiment of the invention, there is provided a shaft (200) for a linear stepper motor that can permit rotational motion. In yet another preferred embodiment of the invention, an "inside-out" motor (300) is provided in which the linearly moving member (314) is external to the stator structure (312). |
