| 主权项 |
1. A drive control apparatus comprising:
a storage configured to store one of first waveform data and second waveform data,
the first waveform data representing a first drive signal applying vibration m×Q times, where Q is a natural number other than 0, to an actuator, the first drive signal being obtained by multiplying a sine wave by a damping ratio of a vibration system implementing the actuator, the sine wave satisfying a frequency f1=(m/n)×f0, where m and n are mutually different natural numbers other than 0,the second waveform data representing a second drive signal applying a vibration (m/2)×Q times, where Q is a natural number other than 0, to the actuator, the second drive signal being obtained by multiplying a sine wave by a damping ratio of the vibration system implementing the actuator, the sine wave satisfying a frequency f1=(m/n)×f0, where m and n are mutually different positive odd numbers,wherein f0 represents a resonant frequency of the actuator; and a drive controller configured to read one of the first waveform data and the second waveform data stored in the storage, and drive the actuator in response to one of the first drive signal and the second drive signal represented by the read one of the first waveform data and the second waveform data, wherein the m, the n and the Q are numbers that reduce a residual vibration of the actuator to a level less than or equal to 0.02 G within 0.02 seconds after the drive controller has stopped reading the read one of the first waveform data and the second waveform data and stopped driving the actuator. |
