| 摘要 |
A linear motor utilizing a flat, ironless, coil winding which can be of the printed circuit type (stamped, etched, or deposited and adhered to a rigid substrate). The winding provides coils that are relatively movable between straight, parallel rows of magnets. The winding can also be fabricated using insulated wire to form a distributed winding. In designing the winding particular attention is paid to the length of the straight portion perpendicular to the direction of the linear motion (LM) compared to the height of the linear air gap (LB) and the outside dimension of the winding (LS). Selection of these dimensions determines four key motor parameters, namely, the motor back emf Ke, the motor force constant Kf, the winding resistance R, and the motor force ripple Fr.
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