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TitleIn-line density-compensated moisture measurement in free-flowing bulk solids With an off-the-shelf capacitance level probe
Publication TypeConference Paper
Year of Publication2004
AuthorsDavies, C., and Tallon S.
Conference NameAIChE Annual Meeting, Conference Proceedings
Date Published2004
KeywordsAcoustic sensors, Capacitance, Capacitance signals, Density of liquids, Granular materials, Hoppers, Moisture determination, Moisture measurement, Particle size analysis, Particle size segregation, Particles (particulate matter), Sensors, Surfaces
AbstractThe use of a novel in-line bulk density measurement technique in combination with the capacitance probe to give an improved moisture measurement was described. The bulk density of the flowing powder was measured in-line by allowing the powder to flow through a small measuring vessel attached to a load cell. The allowance for variations in bulk density resulted in 50% reduction in the standard deviation of the error in the moisture content measurement. The resulting system could be used in-line to measure both the bulk density of a flowing particulate material, and to give an improved moisture content reading based on capacitance measurement.

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