電界共役流体(ECF)を応用したマイクロモータ : ロータ電極(RE)形マイクロECFモータの提案

概要

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Some kinds of dielectric fluids such as dibutyl decane-dioate generate jet flow between electrodes. One of the authors calls the fluids ECF (Electro-conjugate Fluids), which are considered as smart fluids. The authors propose a micro motor by making use of ECF. In our previous paper, stator electrode (SE)-type micro ECF motors have been reported. In this study, a rotor electrode (RE)-type micro ECF motor is proposed. On the RE-type micro ECF motor, some pairs of electrodes are located on the surface of a cylindrical rotor. The rotor can rotate with the reaction force caused by ECF jets. By making use of the ECF jet's reaction force, micro motors are easily realized. Also it is expected that RE-type ECF motors have higher power and higher efficiency than SE-type ECF motors. In this paper, fabrication of micro ECF motors having I.D. φ3 mm, I.D. φ4 mm, I.D. φ8 mm is described. Basic characteristics such as rotational velocity, load characteristics, output power and efficiency are experimentally examined. Also, mathematical models of the ECF motor are proposed and verified with experimental data. Finally, miniaturization characteristics and aging characteristics are examined based on the fabricated ECF motors.
社団法人日本機械学会の論文
2000-11-25