Particle size distribution analyzer

Details Particle size distribution analyzer Particle size distribution analyzer

2007-02-20

2007-02-20

Nguyen, Tu T. (Department: 2877)

Optics: measuring and testing

For size of particles

By particle light scattering

Reexamination Certificate

active

11188462

ABSTRACT:
A particle size distribution analyzer is equipped with cells, a light source, to irradiate particles in a cell and multiple photo-detectors that detect a light intensity of a diffraction light and/or a scattering light generated from the particles. An information processor calculates particle size distribution based upon light intensity signals transmitted from each of the photo-detectors. A movement retention unit moves the cells between a light irradiation position and withdrawal positions. A stop unit can stop one of the cells at the light irradiation position. A cell identification unit identifies a cell situated at the light irradiation position and transmits an identification signal of the cell to the information processor, which is equipped with a program switch unit that automatically switches to an appropriate program for controlling the operation of the analyzer corresponding to the cell identification signal.

REFERENCES:
patent: 6249344 (2001-06-01), Virag
patent: 2002/0110487 (2002-08-01), Samsoondar
patent: 2003/0123057 (2003-07-01), Lemmo et al.
patent: 1 156 319 (2001-11-01), None
patent: 2002-243622 (2002-08-01), None
patent: 2005-017119 (2005-01-01), None

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