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piezoelectric resonator problem

Posted Oct 14, 2013, 1:39 p.m. EDT 1 Reply

Juan Tamez
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I am trying to model a piezoelectric resonator in comsol. Its resonant frequency should be near 100 kHz. However, I see extra peaks above 100kHz which looks a lot like noise to me. We have an actual resonator that we fabricated in hand and those peak don't appear anywhere in the measurement. any idea why?
1 Reply Last Post Oct 14, 2013, 4:21 p.m. EDT
Edgar J. Kaiser Certified Consultant
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Posted: 1 decade ago Oct 14, 2013, 4:21 p.m. EDT

Juan,
difficult to give an advice without seeing your model or the results. Sounds like it could be mesh related. You could check if finer meshing resolves the issue.

Cheers
Edgar

--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Juan, difficult to give an advice without seeing your model or the results. Sounds like it could be mesh related. You could check if finer meshing resolves the issue. Cheers Edgar -- Edgar J. Kaiser emPhys Physical Technology http://www.emphys.com

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