Optics: measuring and testing – For size of particles – By particle light scattering
Patent
1995-05-25
1996-11-26
Rosenberger, Richard A.
Optics: measuring and testing
For size of particles
By particle light scattering
738655, 241 39, 356440, G01N 1502, G01N 2185
Patent
active
055791077
ABSTRACT:
A dry particle analyzer includes a vibrating sieve cup drizzling particles downwardly with first, second, and third sheath air flows being provided to separate the particles from boundary walls and to form the drizzling particles into a columnated flow for optical analysis. The particles drop vertically as a drizzle with gravitational assistance from a bulk sample to an analysis chamber. Along the way to the analysis chamber, the particles are subjected to an interval of high air flow shear, and to high turbulence of the air flow to break up agglomerations of particles.
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1987 brochure entitled "New Microtrac II"; Leeds & Northrup. (no month).
Torgerson Curt
Wright Craig
Horiba Instruments Inc.
Rosenberger Richard A.
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