Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Force/Torque Control of Ultrasonic Motor with PWM Driving Method

PWM 구동방식을 이용한 초음파 모터의 힘/ 토크제어

  • 최병현 (성균관대학교 기계공학과 대학원) ;
  • 최혁렬 (성균관대학교 기계공학부)
  • Published : 2000.11.01
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Abstract

Ultrasonic motors(USM) has been emerging as one type actuators, which possess many advantages such as high torque, low weight, compact size and no magnetic field generation. In spite of these features, there are several problems to be solved, which are temperature rise in case of long term operation, non -linearity, and hysteresis. Among these, hysteresis cause the most serious problem in force/torque control applications. To cope with this paper we propose a new PWM driving method which can be applied to force/torque control applications. To cope with this problem, in this paper we propose a new PWM driving method which can applied to force/torque control of USM. To verify the proposed method, an experimental setup was built and several experiments were performed.

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References

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