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Piezoelectric sensor

Posted 05.02.2014, 12:21 GMT-5 Acoustics & Vibrations, Modeling Tools & Definitions, Parameters, Variables, & Functions, Structural Mechanics Version 4.4 0 Replies

Matthew Mallay
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I am trying to model a sensor made using a cylindrically polarized ring of PZT, using the acoustics module. I am applying a background pressure field and want to measure the voltage produced on the outside of the ring (the inner surface is ground, and I want to outer surface to be covered with 4 electrodes, one in each quadrant). I eventually want to do this for a range of frequencies to determine the resonant frequency of the sensor. Any suggestions on how to proceed?

I cant figure out how to ensure that the voltage is equal across the surface of the electrode. I have tried defining them as floating potentials (acoustic-piezoelectric interaction, frequency domain), but I am still seeing a voltage gradient across the surface. Some help on this would be greatly appreciated.

I should be able to upload my model if that would help, just let me know.
0 Replies Last Post 05.02.2014, 12:21 GMT-5
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