Loss in piezoelectric ceramic resonators

R. Pastore, A. Ballato, H. L. Cui

Research output: Contribution to journalConference articlepeer-review

Abstract

The purpose of this work is to explore the loss mechanism in piezoceramic material. This is done by combining the acoustic viscosity constants of the material with the elastic constant and forming a complex elastic constant. Then the one dimensional differential equations are solved with this as the elastic constant. The complex elastic coefficient suggests that the device has a complex resonant frequency. An experiment has been set up to apply a complex frequency to the device in the form of a decaying sine wave, and some preliminary results are presented. Equivalent circuit modeling of the device using transmission lines and controlled sources are used to simulate the device with a decaying sine wave as the excitation. Results are presented from these simulations.

Original languageEnglish
Pages (from-to)935-938
Number of pages4
JournalProceedings of the IEEE Ultrasonics Symposium
Volume2
StatePublished - 1999
Event1999 IEEE Ultrasonics Symposium - Caesars Tahoe, NV, USA
Duration: 17 Oct 199920 Oct 1999

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