| 摘要 |
This invention relates to a vibration wave motor. The vibration wave motor has frequency-velocity characteristics that the velocity abruptly changes in a frequency region lower than the resonance frequency, and the velocity Slowly changes in a frequency region higher than the resonance frequency. According to this invention, in consideration of the above characteristics, the startup characteristics of the motor are improved by driving the motor in a frequency region lower than the resonance frequency as a main region. <IMAGE> |
