These actuators can convert mechanical energy into electrical energy and vice versa and no friction or wear and tear is involved due to which it can be used for very precise measurement application.These actuators do not wear and tear and hence there is no need of lubrication. Also, there is no polymer coating on them and hence they are ideal for ultrahigh vacuum application.
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Boisen Blevins
Als Goodwin
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Abrams Gregersen
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