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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.

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Ultrasonic field measurement in test cells combining the acousto-optic effect, laser interferometry and tomography

Sheridan, A.K. (2004) Ultrasonic field measurement in test cells combining the acousto-optic effect, laser interferometry and tomography. In: Proceedings of the IEEE Ultrasonics Symposium, 2004. IEEE, pp. 1038-1041. ISBN 0-7803-8412-1

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Abstract

This paper describes a non-invasive measurement technique for the characterisation of acoustic fields generated by a commercially available 33 kHz Tonpilz transducer in fluid loaded cylindrical test cells. Firstly, a harmonic field prediction model was used to verify the experimentally measured pressure fields at various distances from the device front face under free field conditions. Next, the finite element code PZFlex was employed for the prediction of pressure field within cylindrical cell configurations. Finally, precise manipulation of the laser firing angle and position was implemented in order to compensate for the breakdown of the reconstruction procedure due to refraction at the cell walls. Results demonstrate reasonable correlation with the PZFlex predictions.