Electroactive polymer transducers biased for increased output

Details Electroactive polymer transducers biased for increased output Electroactive polymer transducers biased for increased output

2006-12-29

2009-02-17

Budd, Mark (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S800000

Reexamination Certificate

active

07492076

ABSTRACT:
Electroactive polymer transducers are disclosed. They are biased in a manner that provides for increased force and/or stroke output, thereby offering improved work potential and power output capacity. The biasing may offer additional or alternate functional advantage in terms of matching transducer performance with a given application such as a normally-closed valve. The improved biasing (including increased output biasing) may utilize negative spring rate biasing and/or a combination of negative or zero-rate biasing with positive rate biasing to achieve the desired ends.

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