Precision piezoelectric stepping motor using piezoelectric torsional acutator

초록

This paper deals with a newly developed piezoelectric motor that generates precise stepping motion using a piezoelecric torsional actuator and a pair of one-way clutch bearings. The torsional actuator consists of a piezoelectric cylinder that produces rotation motion invoking shear mode of piezo-electric materials and a torsion bar that magnifies the rotation angle produced from the piezoelectric cylinder