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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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Estimating particle concentration using passive ultrasonic measurement of impact vibrations

Carson, G. and Mulholland, A.J. and Nordon, A. and Tramontana, M. and Gachagan, A. and Hayward, G. (2009) Estimating particle concentration using passive ultrasonic measurement of impact vibrations. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 56 (2). pp. 345-352. ISSN 0885-3010

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Abstract

A method of obtaining particle size and concentration information, from ultrasonic transducer measurements of particle-wall interactions in a particle laden fluid, is presented. A mathematical model of the flexural vibrations of the vessel wall due to the particle impact is constructed. The key component of this model is the derivation of an analytic expression for the impact force amplitude. An analytic expression for the power spectrum is then obtained that shows its explicit dependency on the system parameters. This spectrum is then integrated over a specific frequency range and a comparison with experimental results is reported.