Piezoelectric ultrasonic motors

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:395246

Wallaschek, J ^[1]

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1. Universitaet-GH Paderborn (Germany). Heinz Nixdorf Inst.

Piezoelectric ultrasonic motors are a new type of actuator. They are characterized by high torque at low rotational speed, simple mechanical design and good controllability. They also provide a high holding torque even if no power is applied. Compared to electromagnetic actuators the torque per volume ratio of piezoelectric ultrasonic motors can be higher by an order of magnitude. Recently various types of piezoelectric ultrasonic motors have been developed for industrial applications. This paper describes several types of piezoelectric ultrasonic motors.

• OSTI ID: 395246
• Report Number(s): CONF-940691--; ISBN 1-56676-171-9
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ACTUATORS
DESIGN
ENERGY CONVERSION
MECHANICAL VIBRATIONS
PIEZOELECTRICITY
TRANSFER FUNCTIONS
TRAVELLING WAVES