Picture of person typing on laptop with programming code visible on the laptop screen

World class computing and information science research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.


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

Parr, A. C S and O'Leary, R. L. and Hayward, G. and Smillie, G. and Rice, A. and 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. IEEE, Piscataway, pp. 1041-1044. ISBN 0780363655

Full text not available in this repository. Request a copy from the Strathclyde author


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.