Abstract
Recently, Y.Otsubo et al., reported that a kind of dielectric fluids such as dibutyl decanedioate produced jet-flow by applying high voltage electrostatic field. The fluids are called Electro-conjugate Fluid (ECF), which are considered as smart fluids. In this study, we propose a novel micro actuator, whose new principle is application of pressure due to ECF jet flows with needle-type electrode and ring-type electrode (ECF jet flows with needle-type electrodes). In this paper, firstly, characteristics of ECF jet flows with needle-type electrodes are experimentally exermined. Consequently, it is confirmed that the pressure due to the ECF jet flows with needle-type electrodes are raised by miniaturization of electrodes, such as tip angle and base diameter of needle-type electrode, and diameter, width and height of ring-type electrode. The characteristics are suitable for microactuator. Secondly, a novel micro actuator is proposed, which is driven by pressure due to ECF jet flows with needle-type electrodes. Mathematical model of the actuator is proposed. Furthermore large model are fabricated, and then, experimentally exermined. As the result, it is confirmed that the large model is driven by new principle, and mathematical model is adequacy. Future works are fabrication and experimental exermination of the micro actuator.
