Title :
Surface acoustic wave motor using an energy circulation driving method
Author :
Asai, Katsuhiko ; Kurosawa, Minoru Kuribayashi
Author_Institution :
Adv. Technol. Res. Labs., Matsushita Electr. Ind. Co. Ltd., Kyoto, Japan
Abstract :
To reduce the driving power, energy circulation driving method was significantly effective. We fabricated a SAW motor using the energy circulation driving method and measured its driving performance under the condition of large pre-load. From the experimental results, the driving efficiency of 5% or more and driving the SAW motor at the input power below 1 W have been attained for the first time. Furthermore, the energy flow of the stator transducer was calculated by using 8-port f-matrices
Keywords :
piezoelectric actuators; surface acoustic wave transducers; transient response; ultrasonic motors; 1 W; 5 percent; SAW motor; driving performance; driving power; energy circulation driving method; large pre-load condition; stator transducer energy flow; surface acoustic wave motor; Acoustic waves; Electrodes; Electronics industry; Energy measurement; Friction; Laboratories; Piezoelectric transducers; Stators; Strips; Surface acoustic waves;
Conference_Titel :
Ultrasonics Symposium, 2001 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-7177-1
DOI :
10.1109/ULTSYM.2001.991677
