Particulate counter

Details Particulate counter Particulate counter

1984-10-09

1986-11-18

Rosenberger, R. A.

Optics: measuring and testing

By particle light scattering

With photocell detection

356427, G01N 1502

Patent

active

046232524

ABSTRACT:
A particulate counter determines the size, number and distribution by size of various particles within a vessel by the principle of near angle scattering in which the portion of a light beam which is deflected by a given particle indicates detection and sizing of that particle. The counter disregards sidelobes which are caused by interference between the deflected portion of the beam and the beam itself by allowing only a single valid particle detection to occur in the space of a given time window.

REFERENCES:
patent: 3858851 (1975-01-01), Ogle
patent: 3956616 (1976-05-01), Knollenberg
patent: 4011459 (1977-03-01), Knollenberg et al.

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