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2009 IEEE International Ultrasonics Symposium
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 multilayer 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.doi:10.1109/ultsym.2009.5441751 fatcat:uq4pz3iurfg5flpuua7p3dbuay