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Enhanced photon-migration methods for particle sizing in concentrated suspensions

✍ Scribed by Huabei Jiang

Publisher
American Institute of Chemical Engineers
Year
1998
Tongue
English
Weight
551 KB
Volume
44
Category
Article
ISSN
0001-1541

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✦ Synopsis

This article presents a new method for determining particle size distribution in undiluted suspensions from spectral measurement of transport-scattering coefficients using continuous-wave photon migration techniques. Particle size distribution (PSD) for concentrated suspensions is determined by a regularized inverse algorithm, which makes it possible to incorporate a synthesized scheme of Marquardt and Tikhonov regularizations. Spectral measurements of dense TiO, suspensions with three different particle concentrations were used to recover the suspensions 'size distributions. Our results are in excellent agreement with the size distribution measured with X-ray sedimentation. These reconstructions of PSDs are obtained both with and without a priori distribution function assumptions.

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