Solid body actuator-drive device with a rotatable shaft

摘要

The device has a drive unit with solid body actuators (11-14) to move a shaft in a shaft rotation at a shaft axle, and a control unit (6) to apply a load and/or stress at the actuators. The control unit is coupled with detector circuit arrangements (611-614) or has the detector circuit arrangements to detect and provide a signal for a mechanical load and/or temperature acting on one solid body actuator, which operates as a sensor. An independent claim is also included for a method for operating a solid body actuator drive device with a control unit.