Proposal of Linear Actuator Using Electro-Conjugate Fluid and Optical Drive for its Actuator

电共轭流体（ECF）具有一种有趣的效应，当对两个电极施加高压时，在两个电极之间会产生射流。活塞式作动器采用两种不同的结构：基于线圈的结构和基于网格的结构。通过实验，明确了作动器的基本特性。在此基础上，提出了一种利用光电效应的PLZT陶瓷作为驱动器的驱动方法。将直线驱动器与光驱方法相结合，构建了光驱式直线驱动器系统。该系统具有非接触式驱动和高电磁兼容性的优点。重要结果如下：1。所提出的两种线性执行器都显示出相当好的静态特性和功能改进的潜力。在线圈式执行器中，活塞的速度和电极之间的电流流动近似地与施加的电压成正比。网状作动器也表现出类似的特点。执行器的负载-速度特性与一般直流电动机相似。结果表明，采用PLZT陶瓷的光驱驱动器可以驱动ECF驱动器。

An electro-conjugate fluid (ECF) has an interesting effect in which a jet flow is generated between two electrodes, when a high voltage is applied to the electrodes. Piston type actuators were constructed using two different structures for the exciting ECF jets : a coil based structure and a mesh based structure. The fundamental characteristics of the actuators were clarified by the experiments. Then, as a drive method for the actuators, an optical drive method using PLZT ceramics with a photoelectric effect was developed. An optical drive type linear actuator system was constructed in which the linear actuator and the optical drive method were combined. This system has the excellent advantages for non-contact drive and high electromagnetic compatibility. The important results are as follows.1. Both of the proposed linear actuators showed fairly good static characteristics and potential for functional improvement.2. In the coil type actuator, the piston speed and the electric current flow between the electrodes grew approximately in proportion to the applied voltage. The mesh type actuator showed similar characteristics.3. The load -speed characteristics of the actuators were similar to those of general DC motors.4. It was shown that the ECF actuators can be operated by the optical drive using PLZT ceramics.