Title :
Novel ultrasonic motor using torsional/ longitudinal vibration
Author :
Bhargava, S. ; Greve, D.W. ; Oppenheim, I.J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
Abstract :
Longitudinal-torsional mode converters have greatly simplified the structure of ultrasonic motors using a combined torsional/ longitudinal vibration, making miniaturization more practical. A previous design of this type of motor used a multi-layer piezoelectric actuator. In this paper, we report on the performance of motors using wafer-type actuators. This motor design requires a reduced volume of piezoelectric material.
Keywords :
piezoelectric actuators; ultrasonic applications; ultrasonic motors; vibrations; longitudinal vibration; longitudinal-torsional mode converters; miniaturization; multilayer piezoelectric actuator; torsional vibration; ultrasonic motor; wafer-type actuators; Capacitance; Clamps; Nonhomogeneous media; Piezoelectric actuators; Piezoelectric materials; Piezoelectric transducers; Power engineering and energy; Spirals; Ultrasonic transducers; Voltage; simulation; torsional and longitudinal vibration; ultrasonic motor;
Conference_Titel :
Ultrasonics Symposium (IUS), 2009 IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4389-5
Electronic_ISBN :
1948-5719
DOI :
10.1109/ULTSYM.2009.5441751
