Particle size distribution analyzer with fractionator pretreatme

Details Particle size distribution analyzer with fractionator pretreatme Particle size distribution analyzer with fractionator pretreatme

1996-11-22

1998-08-18

Font, Frank G.

Optics: measuring and testing

For size of particles

By particle light scattering

250574, G01N 1502

Patent

active

057964807

ABSTRACT:
Particle size distribution measuring equipment includes a flow cell that can be illuminated with light so that suspended particles can scatter the light and thereby measure both particle size and frequency. A dispenser unit is connected to the flow cell for delivering a sample. A fractionator unit can pretreat the sample to provide particles over a predetermined size in a sealed chamber resulting from the impact of compressed air. The fractionated sample can be delivered to the dispenser, and a controller can automatically coordinate the preparation of the dispenser unit, the flow cell, the measuring of scattered light, and the release of the fractionated sample from the sealed chamber.

REFERENCES:
patent: 4097149 (1978-06-01), Aladjem et al.
patent: 4565448 (1986-01-01), Abbott et al.
patent: 4939081 (1990-07-01), Figdor et al.
patent: 5087823 (1992-02-01), Silvy et al.
patent: 5530540 (1996-06-01), Wyatt et al.

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