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Piezoelectric Ultrasonic Micromotors

By Anita Flynn Mit and Anita M. Flynn


This thesis describes development of a new actuator technology for integrated machines of the future: piezoelectric ultrasonic micromotors. Ultrasonic motors offer the advantages of low speed, high torque operation without the need for gears. They can be made compact and lightweight and provide a holding torque in the absence of applied power due to the traveling wave frictional coupling mechanism between the rotor and the stator

Year: 2007
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