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发明公开
CN106604887A 三自由度MEMS活塞管静电微致动器 有权 转让

三自由度MEMS活塞管静电微致动器
摘要：
公开了一种三自由度MEMS静电活塞管致动器。该致动器包括两个结构。一个结构包括：多个固定的活塞状电极，所述多个固定的活塞状电极附接到基座，并且形成致动器的定子。第二结构包括多个移动的管状电极，所述多个移动的管状电极附接到上部结构的主体并形成致动器的转子。该转子通过机械弹簧连接到定子。致动器的转子提供3‑DOF运动，包括垂直平移和围绕结构的轴线的双轴旋转。本活塞管致动器利用能够使用宽广区域电极的构造，并且因此提供使得转子能够平移的高输出力或者能够使转子旋转的高输出转矩。
摘要（英）：

A three-degrees-of-freedom MEMS electrostatic piston-tube actuator is disclosed. The actuator comprises two structures. A structure that comprises a plurality of fixed piston-like electrodes that are attached to a base, and form the stator of the actuator. A second structure that comprises a plurality of moving tube-like electrodes that are attached to the body of the upper structure and form the rotor of the actuator. The rotor is attached to the stator through a mechanical spring. The rotor of the actuator provides a 3-DOF motion, comprising vertical translation and bi-axial rotation about the axes of the structures. The present piston-tube actuator utilizes a configuration that enables the use of wide area electrodes, and therefore, provides a high output force enabling translation of the rotor or a high output torque enabling rotation of the rotor.

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