| 摘要 |
<p>Provided is a linear motor actuator capable of vibrating a mover without using mechanical resilience of an elastic body. A first permanent magnet (3a) and a second permanent magnet (3b) magnetized in a direction of an axis are disposed in a mover (4) in the direction of the axis. A first coil (1a) and a second coil (1b) are disposed in a stator (2) so as to surround the first permanent magnet (3a) and the second permanent magnet (3b), respectively. Alternating currents having the same phase are applied to the first coil (1a) and the second coil (1b) such that the phase of thrust generated in the first coil (1a) and that of thrust generated in the second coil (1b) are shifted from each other. At this moment, a center-to-center pitch (LC1) between the center of the first coil (1a) and that of the second coil (1b) in the direction of the axis differs from a pole-to-pole pitch (LM1) of the mover.</p> |
