Title :
Ultrasonic motors using piezoelectric ceramic multimode vibrators
Author :
Takano, Takehiro ; Tomikawa, Yoshiro ; Ogasawara, Toshiharu ; Sugawara, Sumio ; Konno, Masashi
Author_Institution :
Dept. of Commun. Eng., Tohoku Inst. of Technol., Miyagi, Japan
fDate :
5/1/1990 12:00:00 AM
Abstract :
The development is reported of an ultrasonic motor using piezoelectric ceramic multimode vibrators consisting of circular or annular plates in which degenerate horizontal vibration modes of the same or different form are used. Two orthogonal nonaxisymmetric vibration modes were used in the same-form case, and the combination of a nonaxisymmetric vibration mode and a radial vibration mode was used in the different-forms case. Some details of the motor design and its experimental characteristics are presented. The ultrasonic motor presented here has a special advantage in its thin construction.<>
Keywords :
piezoelectric devices; small electric machines; ultrasonic applications; annular plates; degenerate horizontal vibration modes; motor design; orthogonal nonaxisymmetric vibration modes; piezoelectric ceramic multimode vibrators; radial vibration mode; ultrasonic motor; Ceramics; Pressing; Resins; Resonance; Rotors; Springs; Stators;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
