Abstract
In an attempt to characterize the macroscopic dynamic performance of a piezoelectric actuator, measurements were taken of important lumped mechanical and electrical parameters for a commercially available piezo-electric actuator. The data include measurements of hysteresis between the applied voltage and the resulting displacements and/or charge accumulation, displacement frequency response, mechanical damping, signal distortion and gain. These measurements indicate the macroscopic effects of varying a.c. and d.c. components of the applied input voltage. Result demonstrate significant non-linearities and indicate under what conditions this device can be treated as linear.
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