Title :
Small-sized ultrasonic linear motor using radial and nonaxisymmetric vibration modes of an annular plate
Author :
Takano, T. ; Enoki, Y. ; Kitashima, S. ; Tomikawa, Y.
Author_Institution :
Fac. of Eng., Tohoku Inst. of Technol., Sendai, Japan
Abstract :
This paper deals with an ultrasonic linear motor using a radial (R, 1)-mode and a nonaxisymmetric ((1, 1))-mode of a piezoelectric ceramic annular plate. A new motor structure is presented; the motor thickness can meet the restriction of 5 mm, which is one of the practical requirements of a light load gearless linear motor. The stator vibrator with 10 mm in its diameter was used. Vibration characteristics of the stator, the motor structure and load characteristics are shown
Keywords :
linear motors; micromotors; piezoceramics; stators; ultrasonic motors; vibrations; 10 mm; 5 mm; annular plate; light load gearless linear motor; load characteristics; motor structure; nonaxisymmetric vibration modes; piezoelectric ceramic annular plate; radial vibration modes; small-sized ultrasonic linear motor; stator vibrator; ultrasonic linear motor; vibration characteristics; Ceramics; Frequency measurement; Resonance; Resonant frequency; Stators; Torque; Velocity measurement; Vibration measurement; Young´s modulus;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.762238
