8 March 2014 Characterization of dielectric electroactive polymer transducers
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Abstract
Throughout this paper, a small-signal model of the Dielectric Electro Active Polymer (DEAP) transducer is analyzed. The DEAP transducer have been proposed as an alternative to the electrodynamic transducer in sound reproduction systems. In order to understand how the DEAP transducer works, and provide guidelines for design optimization, accurate characterization of the transducer must be established. A small signal model of the DEAP transducer is derived and its validity is investigated using impedance measurements. Impedance measurements are shown for a push-pull DEAP based loudspeaker, and the dependency of the biasing voltage is explained. A measuring setup is proposed, which allows the impedance to be measured, while the DEAP transducer is connected to its biasing source.
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Dennis Nielsen, Martin Bo Møller, Rahimullah Sarban, Benny Lassen, Arnold Knott, Michael A. E. Andersen, "Characterization of dielectric electroactive polymer transducers", Proc. SPIE 9056, Electroactive Polymer Actuators and Devices (EAPAD) 2014, 90560L (8 March 2014); doi: 10.1117/12.2044482; https://doi.org/10.1117/12.2044482
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