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Particle Measurements Using Fluctuations in the Regular Transmittance of Light Through a Particle Dispersion: Concentration and Particles size - Theory, Measurement Principles and Applications for Pulp and Paper Production

ISBN: 9174152548 ;ISBN: 9789174152548

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Title:
Particle Measurements Using Fluctuations in the Regular Transmittance of Light Through a Particle Dispersion: Concentration and Particles size - Theory, Measurement Principles and Applications for Pulp and Paper Production
Author: Rydefalk, Staffan
Subjects: Cellulose fibres ; Cylindrical particles ; Industrial engineering and economy ; Industriell teknik och ekonomi ; Large particles ; Manufacturing engineering ; Manufacturing engineering and work sciences ; Particle concentration ; Particle length ; Particle length distribution ; Particle size ; Particle width ; Produktion och arbetsvetenskap ; Produktionsteknik ; Suspensions ; TECHNOLOGY ; TEKNIKVETENSKAP ; Wood pulp fibres
Description: The regular transmittance of light or similar radiation through a flowing suspension of particles fluctuates because of the random occurrence of particles in the beam.In the work presented here, a theory for this fluctuating behaviour with the emphasison dispersions of mm-length slender cylindrical particles having circular crosssections is given. The particles in question are wood pulp fibres, which as a first approximation are considered to have a cylinder shape. Four possible measurementprinciples are described theoretically and experimentally. The four principles are for the measurement of concentration, length distribution characterized as lengthclasses, mean length, and mean width. The usefulness in industrial process monitoring of two of these principles is exemplified with pulp measurements. In order to estimate model errors, numerical simulations were used. Although other techniques such as image analysis may compete, the technique presented here is attractive because of the simplicity of the measurement device used.
Creation Date: 2009
Language: English
Identifier: ISBN: 9174152548
ISBN: 9789174152548
Source: SWEPUB Freely available online

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Particle Measurements Using Fluctuations in the Regular Transmittance of Light Through a Particle Dispersion: Concentration and Particles size - Theory, Measurement Principles and Applications for Pulp and Paper Production

ISBN: 9174152548 ;ISBN: 9789174152548

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