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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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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.