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.