Liquid Crystalline Micro-Motor

Abstract

We have proposed and developed the liquid crystalline micromotor driven by the backflow. The liquid crystalline motors have simple structure composed of an outer cylinder, a rotary shaft and a liquid crystalline material which is filled between the cylinder and the shaft. The shaft of the motor rotates when the pulsed voltage is imposed on the liquid crystal. The rotation speed strongly depends on the voltage and the frequency of the pulse. The rotation speed increases with the increase of the voltage, and becomes almost constant for the voltage higher than 7V. It is also found that the rotation speed becomes maximum the frequency 400Hz.