Title :
Characteristics of a hybrid transducer-type ultrasonic motor
Author :
Nakamura, Kentaro ; Kurosawa, Minoru ; Ueha, Sadayuki
Author_Institution :
Res. Lab. of Precision Machinery & Electron., Tokyo Inst. of Technol., Yokohama, Japan
fDate :
5/1/1991 12:00:00 AM
Abstract :
The hybrid transducer-type ultrasonic motor previously proposed by the authors (1989, 1991) uses two ultrasonic transducers to control the Lissajous figure at the contact surface of the stator. This motor is stable, even at low speed, and realizes a large output with a high efficiency due to the high controllability of the Lissajous figure. The experimental investigation of the characteristics of this hybrid transducer-type ultrasonic motor is presented. In addition, the maximum torque is roughly estimated by means of a simple model. The dependence of the diameter of the motor (transducer) on the maximum torque is discussed and demonstrated experimentally.<>
Keywords :
piezoelectric motors; ultrasonic transducers; Lissajous figure; contact surface; controllability; diameter; hybrid transducer-type ultrasonic motor; maximum torque; speed; stator; Force control; Frequency; Helium; Piezoelectric actuators; Piezoelectric transducers; Rotors; Stators; Torque; Ultrasonic transducers; Vibration control;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
