Tripod Type Piezoelectric Actuator

摘要

In this paper, a tripod type piezoelectric actuator that had low rotational speed and high torque was discussed. The tripod type piezoelectric actuator was made up by three piezoelectric legs and base. Its dimensions and net weight was 82mm×73mm×57mm and 1.14N. And the maximum clockwise rotational speed was 88.7 rpm under 100V_(p-p) driving voltage, 49.4kHz driving frequency and 1.4N loading. Its counterclockwise rotational speed was 59.8 rpm under 100V_(p-p) driving voltage, 49.78kHz driving frequency and 1.4N loading. In addition, its maximum loading was 13.6N under 100V_(p_p) driving voltage, 49.4kHz driving frequency and 34.4rpm clockwise rotational speed. And the maximum loading was 13.IN under 100V_(p-p) driving voltage, 49.78kHz driving frequency and 25rpm counterclockwise rotational speed.