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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...
This study compares the force sensing properties of polyvinylidenefluoride (PVDF) and ElectroMechanical Film (EMFi) sensor materials. The PVDF material has solid structure whereas the structure of the EMFi material is cellular. Due to the structural differences, some of the material properties differ. The sensor operation is evaluated here with force sensitivity measurements. The sensitivity is measured...
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