| 摘要 |
A linear motor is provided with a coil, a plunger selectively positionable thereby, a permanent magnet concentric with the coil and plunger having oppositely polarized magnetic poles on outer and inner surfaces creating a magnetic circuit extending through the plunger, end caps of non-magnetizable material in line with the plunger, and an output shaft of non-magnetizable material extending through an end cap.
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