Electrostatic linear actuator


An actuator that uses electrostatic force to generate a linear motion.

After the development of electrostatic motors that generate rotational driving force, much development is also focusing on electrostatic linear actuators that generate a linear driving force. Examples include a variable gap linear actuator that imparts rolling to moving parts and consists of a flat plate with strip electrodes and a cylindrical electrode on top of the plate. A film linear actuator that uses the electrostatic repulsion of the inductive charge on a high-resistance substance to shift the slider sequentially is also under development. The electrode can easily be made large. Using multiple pairs of electrodes in different directions realizes movement with three degrees of freedom (two-axis translational and single-axis rotational movements).


[Related Terms]
Actuator, Electrostatic motor, Linear actuator