The first prototype is used to analyze a golfer’s swing

 

PolyPower electrostatic film measures athletic movements, harvests energy

By C.C. Weiss
February 28, 2013

Danish company Danfoss PolyPower A/S has designed a new wearable sports sensor that has the potential to measure everything from stance to force. The sensor could prove a veritable technology on its own, but PolyPower technology is also being explored as a means of actuation and energy harvesting.

PolyPower material is a proprietary version of Dielectric Electro Active Polymer (DEAP) technology. The film consists of a patented combination of silicone dielectric material with a corrugated surface and a very thin layer of metallic electrode on top of it. As with other types of DEAP, PolyPower material reacts when a voltage is applied. By applying a high voltage, electrostatic pressure causes the film to expand in plane and contract in thickness. The corrugation on the PolyPower material allows it to be stiff across the width or length while stretching the other way.

The electrostatic properties of the PolyPower material can be manipulated in several different ways for different applications. In the long term, Danfoss PolyPower sees potential in using the material for harvesting energy. The company explains that when a voltage is applied to a stretched piece of film, and the film is then relaxed, the voltage will increase significantly, converting mechanical energy into electricity.

Read more: PolyPower electrostatic film measures athletic movements, harvests energy — gizmag.

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