Piezoelectric adjusting motor for applying greater force with less exciter voltage, comprises monolithic plate-like/cylindrical piezoelectric oscillator with first and second types of main surfaces with groups of electrodes.

摘要

A piezoelectric adjusting motor has a friction layer on a casing (1) and/or a driven element (3) and a driving element (5) in frictional contact with this layer and linked to an electrical exciter source. A piezoelectric oscillator is excited by groups of electrodes with longitudinal acoustic waves towards the oscillator's resonance length and height.