Process for determining characteristics of suspended particles

Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

73 2402, 73 2403, 356437, 356438, 356441, 356442, G01N 1502, G01N 2902, G01N 2185

Patent

active

061195103

ABSTRACT:
The invention provides an improved process for determining the characteristics of dispersed particles. The process involves directing waves (acoustic or light) into a dispersion, and measuring the attenuation of the waves for particular frequencies to provide an attenuation spectrum. The measured attenuation spectrum is then compared to a set of theory-based calculated attenuation spectra to determine the particle size distribution corresponding to the measured attenuation spectrum. Unlike previous processes, the particle size distribution is capable of being accurately determined by a single inversion algorithm, thus eliminating burdensome steps of previous methods.

REFERENCES:
patent: 3779070 (1973-12-01), Cushman et al.
patent: 4706509 (1987-11-01), Riebel
patent: 5121629 (1992-06-01), Alba
patent: 5569844 (1996-10-01), Sowerby
P. VanZant, Microchip Fabrication, 3.sup.rd Ed., McGraw-Hill, p. 300 (1997).
Epstein, P.S. and Carhart, R. R., "The Absorption of sound in suspensions and Emulsions", J. Acoust. Soc. Amer., vol. 25, p. 553 (1953).
Allegra, J.R. and Hawley, S.A., "Attenuation of Sound in Suspensions and Emulsions: Theory and Experiments", J. Acoust. Soc. Amer., vol. 51, p. 1545 (1972).
Mie, vonG., Annalen Physik, vol. 25, p. 377 (1908).
M. Kerker, The Scattering of Light and Other Electromagnetic Radiation, Academic Press (1969).
Guidarelli, G. et al., "Ultrasonic characterterisation of solid-liquid suspensions", Ultrasonics,GB, IPC Science and Technology Press Ltd., Guildford, vol. 36, No. 1-5, pp. 467-470 (1998).
Austin, J. C. et al., "Ultrasonic wave propagation in colloid suspensions and emulsions: recent experimental results" Ultrasonics,GB, IPC Science and Technology Press Ltd. Guilford, vol. 34, No. 2 pp. 369-374 (1996).
Chew, W.C. et al., "Effcient Computation of Three-Dimensional Scattering of Vector Electromagnetic Waves", Journal of the Optical Society of Ameroca-vol. 11, No. 4, pp. 1528-1537 (1994).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Process for determining characteristics of suspended particles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for determining characteristics of suspended particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for determining characteristics of suspended particles will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1060780

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.