Abstract
The effects of the duty and the frequency of the applied pulsed voltage on the driving performance of liquid crystalline micro-actuators are experimentally analyzed. The liquid crystalline material 4-cyano-4'-n-pentylbiphenyl is placed between two parallel glass plates, and the pulsed voltage is applied between the glass plates. The upper glass plate is moved by the electric field induced liquid crystalline flow when the plate is not fixed. The movement of the upper glass plate is observed under microscope. From the experimental result, it is found that the moving speed of the upper glass plate strongly depends on the frequency, and shows the maximum for the duty ratio 10% and the frequency 300Hz.
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