A lumped-parameter transducer model for piezoelectric and ferroelectret polymers

We have developed a model to describe the sensor operation of piezoelectric and ferroelectret polymer materials. The lumped-parameter model for the sensors describes the interaction between a mechanical motion and an electrical signal. The differences in material properties are considered in the model, and especially, the effects of dynamic and static forces and temperature to the electrical output signals provided by the sensors constructed from the materials are discussed. (C) 2011 Elsevier Ltd. All rights reserved.