METHOD AND DEVICE FOR ADJUSTING A PIEZOELECTRIC RING MOTOR

摘要

The invention relates to a method for adjusting a piezoelectric ring motor consisting of the following elements: at least two piezoelectric actuators (3.1, 3.2); at least one drive ring (2) that can be activated by the actuators performing the reciprocating motion in such a way as to carry out a continuous displacement motion; and a shaft (5) that is rotated by pressure in relation to the drive ring by means of the same. On the basis of the evaluation of the course of the electrical signals during the control of each piezoelectric actuator, voltage values for the change of operating state between the stopper of the shaft and the ring and free movement between the two or vice versa are recorded. An offset value describing the offset between the drive shaft and the drive ring is calculated from said values. The products are ring motors driven by finely adjusted solid body actuators.