| 摘要 |
<p>The first unbalanced mass, and by controlling the servo motor, the second unbalanced mass and a servo motor for rotating the first unbalanced mass, are disposed on the first unbalanced mass and a rotating shaft by the servo motor according to an embodiment the second unbalanced mass of the rotating speed and phase for generating a different oscillation mode side direction using the rotation speed and the phase difference including a speed control for controlling the vibration generating device is described.</p> |
