Numerical Modeling of Dynamically Excited Non-Resonant Piezoelectric Sensor
Keywords:
Non-resonant, PZT, Actuator, SensorAbstract
Mass measurement of the viscoelastic or biological specimen using resonant sensor leads to missing mass effect, which affects the precision mass measurement. The non-resonant piezoelectric sensor is used in the mass measurement of these viscoelastic or biological specimen in order to eliminate the missing mass effect. In the present work, finite element analysis method of numerical modeling has been used to characterize the output of the non-resonant piezoelectric sensor. Finite element analysis of mechanical model and electromechanical coupled model is presented. In the mechanical model, the results obtained by FEA of PZT stack are in good agreement with the analytical results obtained by solving equations of motion. In the electromechanical coupled model, FEA of the non-resonant piezoelectric sensor has been carried out. The simulation results obtained for the electromechanical coupled model agrees with the published experimental results.
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