Ultrasonic motors

[Authors]:Ueha;S.;Kurosawa;M.

[Subject]:ultrasonic motor;piezoelectric elements;stator;vibration;Lissajous figure;piezoelectric transducers;ultrasonic devices

[Corporate Source]:Tokyo Inst. of Technol.;Yokohama;Japan

[Publisher]:Ultrasonics Symposium;1988. Proceedings.;IEEE 1988

[ISSN]:

[ConferenceDate]:2-5 Oct. 1988[Publish Date]:1988[Total Page]:2 vol. 1113[Pdf size]:209K[On Pages]:519_522 vol.1

[From]: School Papers schoolpapers.org

[Download]:Ultrasonic motors

[Abstract]:An ultrasonic motor is proposed which uses two piezoelectric elements in the stator. One element is used to generate a vibration polarized with respect to the direction of motion of the rotor or the slider. The other one generates a vibration perpendicular to the motion of the rotor. By imaging the ratio of the vibration amplitudes and the phase, the Lissajous figure of the particle on the stator surface can be controlled easily. This makes it possible to operate the motor stably, even at low speed.

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