Title :
Linear ultrasonic piezoelectric actuator
Author :
Kawamura, Atsuo ; Takeda, Norihiko
Author_Institution :
Dept. of Electr. & Comput. Eng., Yokohama Nat. Univ., Japan
Abstract :
A prototype of a linear ultrasonic piezoelectric actuator (LUPA) was developed, and the fundamental characteristics were measured. The results imply that the LUPA has the advantages of compactness, standstill force without excitation, and a large torque in the low-speed range. The disadvantages are that the mechanism of force generation is friction, which may not be steady, and a 30-50 kHz power supply is required.<>
Keywords :
electric actuators; piezoelectric devices; ultrasonic devices; force generation; friction; linear ultrasonic piezoelectric actuator; Energy conversion; Frequency; Friction; Piezoelectric actuators; Piezoelectric materials; Power generation; Power supplies; Prototypes; Surface waves; Ultrasonic variables measurement;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96653
