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Abstract

A piezoelectric motor including a rotor and a piezoelectric actuator positioned relative to the rotor in such manner that a working end of the actuator is in linear, frictional, resilient and forced contact with a working surface of the rotor. The actuator includes a piezoelectric a longitudinal prism shaped resonator with a trapezoidal cross-section and the working end of the actuator is a flat pusher insert set at an angle to the plane of the resonator base. An electronic generator is connected to electrodes of the piezoelectric actuator to excite periodic mechanical oscillations in the actuator wherein the electrodes are applied onto the longitudinal lateral trapezoidal surfaces of the resonator and the piezoelectric resonator is polarized across its width and the electronic generator outputs an alternating electrical voltage signal at a frequency matching the frequency of the first-order natural longitudinal mode of mechanical oscillation along the length of the resonator.

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First Claim