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Robust estimation of particle velocity profiles in high concentration magnetite suspensions
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
2013 (English)In: Proceedings of the 2013 International Congress on Ultrasonics / [ed] Gan Woon Siong; Lim Siak Piang; Khoo Boo Cheong, Singapore: Research Publishing Services, 2013Conference paper (Refereed)
Abstract [en]

In the mining industry magnetite particles are transported in aqueous suspension through different stages of the process. In some stages it is of interest to monitor both the concentration and particle velocity profiles over a cross-section of the flow. In this paper an ultrasonic flow meter method based on cross-correlation of backscattered sound is presented. High solid particle content (e.g. 20-40 wt%) makes this challenging and therefore the emphasis lies on developing robust signal processing techniques for particle velocity estimation. The developed method is evaluated in laboratory experiments on flows in a rectangular duct. Transducers with centre frequency 1, 2, 4 and 5 MHz are evaluated in flows with a solid content of 20% by weight (4.7 vol% solids). Using the 2 MHz transducer a penetration depth of 50 mm is reached.

Place, publisher, year, edition, pages
Singapore: Research Publishing Services, 2013.
Research subject
Mineral Processing; Signal Processing; Industrial Electronics
Identifiers
URN: urn:nbn:se:ltu:diva-40122DOI: 10.3850/978-981-07-5938-4_P0150Local ID: f1d612b9-9724-4ca9-b1f5-291bbf6d020cISBN: 978-981-07-5938-4 (PDF)OAI: oai:DiVA.org:ltu-40122DiVA: diva2:1013645
Conference
International Congress on Ultrasonics : 02/05/2013 - 05/05/2013
Projects
Wet LlMS - Measurements and models
Note
Godkänd; 2013; 20130517 (janste)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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Stener, JanCarlson, Johan E.Pålsson, BertilSand, Anders
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