Determining the size distribution of particles in a fluid

Details Determining the size distribution of particles in a fluid Determining the size distribution of particles in a fluid

G - Physics

01

N

G01N 15/02 (2006.01) G01N 29/024 (2006.01) G01N 23/06 (2006.01)

Patent

CA 2224686

In this embodiment the size distribution of particles in a fluid is determined by performing the following steps: (a) passing a plurality of ultrasonic beams through the fluid, wherein the beams have respective frequencies (f1, f2,...f n); (b) obtaining a velocity measure of the beams in the fluid; (c) obtaining an ultrasonic velocity spectrum as a function of particle size for the fluid; (d) determining from the attenuation of gamma-rays the density of the fluid; and (e) calculating the particle size distribution for the fluid from the velocity measure, the velocity spectrum, and the suspension density which were respectively obtained in steps (b), (c) and (d).

On détermine la distribution granulométrique des particules dans un fluide en effectuant les étapes suivantes: (a) passage de plusieurs faisceaux d'ultra-sons dans le fluide, les faisceaux présentant des fréquences respectives de (f1, f2,...fn); (b) obtention d'une mesure de la vitesse des faisceaux dans le fluide; (c) obtention d'un spectre de vitesse d'ultra-sons en fonction de la granulométrie pour ce fluide; (d) détermination de la densité du fluide à partir de l'atténuation des rayons gamma; et (e) calcul de la distribution granulométrique pour le fluide, à partir des paramètres de la mesure de la vitesse, du spectre de vitesse, et de la densité de la suspension, qui ont été respectivement calculés dans les étapes (b), (c) et (d).

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