ACTUATOR DEVICE BASED ON AN ELECTROACTIVE POLYMER
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United States of America Patent
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May 27, 2016
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Jun 3, 2015
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Abstract
An actuator device comprises an electroactive polymer (30) and a controller (34) for delivering a drive signal to the electroactive polymer to make it deform. The controller is adapted to generate a signal which comprises an AC component for introducing a vibration (40, 42) of the electroactive polymer. This vibration is used to reduce friction between the electroactive polymer and an adjacent component (32). The AC component may be superposed on a low frequency AC or DC drive level.
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