Ultrasonic piezoceramic-polymer composite transducer - dynamic behavior and effects of heterogeneous structure

Qiming Zhang, X. Geng, Y. Shui, Wenwu Cao, L. E. Cross

Research output: Contribution to conferencePaper

Abstract

A dynamic theory is developed for piezocomposites with 2-2 connectivity. By solving the coupled dynamic equations in the piezoceramic plate and polymer region subjected to the boundary conditions at the ceramic-polymer interface, the distributions of the elastic and electric variables in a composite are obtained. The electromechanical coupling factor, the acoustic impedance, the resonant frequency, and the elastic coupling between the polymer and ceramic at the thickness resonance can be determined. The effects of modes coupling on the thickness resonance and lateral resonance are elucidated and the dependence of the frequency of these resonant modes on the composite thickness can be estimated. Theoretical results are compared with experimental observations.

Original languageEnglish (US)
Pages329-332
Number of pages4
Publication statusPublished - Dec 1 1994
EventProceedings of the 1994 9th IEEE International Symposium on Applications of Ferroelectrics - University Park, PA, USA
Duration: Aug 7 1994Aug 10 1994

Other

OtherProceedings of the 1994 9th IEEE International Symposium on Applications of Ferroelectrics
CityUniversity Park, PA, USA
Period8/7/948/10/94

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Zhang, Q., Geng, X., Shui, Y., Cao, W., & Cross, L. E. (1994). Ultrasonic piezoceramic-polymer composite transducer - dynamic behavior and effects of heterogeneous structure. 329-332. Paper presented at Proceedings of the 1994 9th IEEE International Symposium on Applications of Ferroelectrics, University Park, PA, USA, .