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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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Analysis of spurious resonances in single and multi-element piezocomposite ultrasonic transducers

Reynolds, P. and Hyslop, J.E. and Hayward, G. (2003) Analysis of spurious resonances in single and multi-element piezocomposite ultrasonic transducers. In: IEEE International Ultrasonics Symposium 2003, 2003-10-05 - 2003-10-08.

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Abstract

1-3 piezocomposites provide for significant advantages over solid piezoceramic transducers for ultrasound applications, at the expense of introduction of additional spurious resonances. We examine in detail the generation of high frequency inter-pillar (lateral) resonances in 1-3 piezoelectric composites, through experiment and finite element analysis (FEA) with the PZFlex package. These inter-pillar modes are clearly shown to be generated due to Lamb waves propagating through the substrate between pillars, the magnitude of which varies dependent upon magnitude of displacement from the thickness mode vibration and its proximity in the frequency domain.