Experimental and theoretical evaluation of the thermal behaviour of 1-3 piezoelectric composite transducers

A. C S Parr, R. L. O'Leary, G. Hayward, G. Smillie, A. Rice, P. T. Smith

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

10 Citations (Scopus)

Abstract

This paper describes progress towards the understanding of temperature effects in 1-3 piezoelectric composite transducers, carried out via a combination of experimental investigation and finite element (FE) analysis using the commercially available PZFlex code. The elastic properties and internal absorption of different passive materials are measured using a through transmission ultrasonic technique, with dynamic mechanical thermal analysis (DMTA) and differential scanning calorimetry (DSC) being employed to evaluate the glass transition behaviour and specific heat capacities (Cp) respectively. The fillers are then incorporated into piezoelectric composite devices and the transducer performance measured over a wide temperature range by means of electrical impedance analysis and laser scanning of the active surface. The FE models are employed to predict the temperature distribution within such transducers as a function of constituent material properties and the data is correlated with the experimentally measured characteristics. The influence of glass transition temperature on viscoelastic properties is highlighted, along with the design compromises necessary to ensure effective high power performance.

Original languageEnglish
Title of host publication2000 IEEE Ultrasonics Symposium. Proceedings. An International Symposium
Place of PublicationPiscataway
PublisherIEEE
Pages1041-1044
Number of pages4
ISBN (Print)0780363655
DOIs
Publication statusPublished - 6 Aug 2002

Publication series

Name
PublisherIEEE
ISSN (Print)1051-0117

Keywords

  • piezoelectric transducers
  • ultrasonic transducers
  • ultrasonic variables measurement
  • glass
  • temperature dustribution
  • fintie element methods
  • mechanical factors
  • absorption
  • mechanical variables measurement
  • ultrasonic imaging

Cite this

Parr, A. C. S., O'Leary, R. L., Hayward, G., Smillie, G., Rice, A., & Smith, P. T. (2002). Experimental and theoretical evaluation of the thermal behaviour of 1-3 piezoelectric composite transducers. In 2000 IEEE Ultrasonics Symposium. Proceedings. An International Symposium (pp. 1041-1044). IEEE. https://doi.org/10.1109/ULTSYM.2000.921503