发明授权
US06252332B1 Ultrasonic motor 失效
超声波电机

  • 专利标题: Ultrasonic motor
  • 专利标题(中): 超声波电机
  • 申请号: US08826039
    申请日: 1997-03-28
  • 公开(公告)号: US06252332B1
    公开(公告)日: 2001-06-26
  • 发明人: Tadao TakagiTakatoshi Ashizawa
  • 申请人: Tadao TakagiTakatoshi Ashizawa
  • 优先权: JP6-029466 19940228; JP6-275022 19941109
  • 主分类号: H02N200
  • IPC分类号: H02N200
Ultrasonic motor
摘要:
An ultrasonic motor includes a vibrator vibrating in conformity with a frequency voltage. A relative motion member effects relative vibration in conformity with the vibration of the vibrator. The vibrator is adapted to vibrate in a first vibration mode and a second vibration mode vibrating in a direction differing from the first vibration mode. The resonance frequency of the first vibration mode is higher than the resonance frequency of the second vibration mode.
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