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Monitoring local solids fraction variations in multiphase flow using pulse-echo ultrasound
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.ORCID iD: 0000-0002-6216-6132
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering.
2015 (English)In: Physics Procedia, ISSN 1875-3892, E-ISSN 1875-3892, Vol. 70, 376-379 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents an ultrasonic pulse-echo technique for on-line monitoring of variations in solids concentrations in particlesuspensions. The method is based on time-frequency analysis of the backscatter signals, exploring variations in spectral content ofthe backscatter as function of depth in the suspension. Experiments on a settling of magnetite particles in water, at varying solidsconcentrations, show that the settling process can be followed by studying the energy of backscattered ultrasound.

Place, publisher, year, edition, pages
2015. Vol. 70, 376-379 p.
National Category
Signal Processing Metallurgy and Metallic Materials
Research subject
Signal Processing; Mineral Processing
Identifiers
URN: urn:nbn:se:ltu:diva-31736DOI: 10.1016/j.phpro.2015.08.097Local ID: 5fee7adf-21ab-4eaa-992c-731074f6801fOAI: oai:DiVA.org:ltu-31736DiVA: diva2:1004970
Conference
International Congress on Ultrasonics : 10/05/2015 - 15/05/2015
Note
Validerad; 2015; Nivå 1; 20150920 (johanc); Konferensartikel i tidskriftAvailable from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-30Bibliographically approved

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Carlson, JohanStener, JanSand, AndersPålsson, Bertil

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