A theoretical and experimental investigation into multilayered piezoelectric composite transducers

R.L. O'Leary, G. Hayward

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Abstract

The behaviour of a number of 3-1 connectivity piezoelectric composite plate transducers is presented. The fundamental thickness mode resonance of such devices is found to be contaminated by lateral resonant activity; this is evidenced in the measured and predicted electrical impedance profile and the surface displacement data at the,fundamental thickness mode. Measurements taken on the 3-1 devices infer that they are not acting as true composites. In addition to this the finite element technique is applied to a number of stacked 3-1 and 1-3 connectivity devices to predict the mechanical Q-factor, and hence bandwidth, as a function of polymer filler properties.
Original languageEnglish
Pages1135-1138
Number of pages4
DOIs
Publication statusPublished - Oct 2002
EventIEEE International Ultrasonic Symposium - Munich, Germany
Duration: 8 Oct 200211 Oct 2002

Conference

ConferenceIEEE International Ultrasonic Symposium
CountryGermany
CityMunich
Period8/10/0211/10/02

Keywords

  • theoretical
  • experimental
  • investigation
  • multilayered piezoelectric composites
  • transducers

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