Method and apparatus for determining the size distribution of di

Details Method and apparatus for determining the size distribution of di Method and apparatus for determining the size distribution of di

1998-01-08

1999-08-17

Pham, Hoa Q.

Optics: measuring and testing

By particle light scattering

With photocell detection

356343, 356 39, 356 73, G01N 2100

Patent

active

059401770

ABSTRACT:
A method and apparatus for determining the size distribution of at least two different types of fluorescent or fluorescently stained particles in a sample by radiating light into a stream of singled particles and recording and analyzing both the scattered light and the fluorescent light. A relative particle size distribution for each individual particle type (T.sub.k) is calculated and then the relative particle size distribution for the individual particle types is normalized forming a joint relative particle size distribution of the at least two particle types with respect to one another.

REFERENCES:
patent: 3710933 (1973-01-01), Fulwyler et al.
patent: 5408307 (1995-04-01), Yamamoto et al.
patent: 5486904 (1996-01-01), Horn et al.
patent: 5757476 (1998-05-01), Nakamoto et al.
Wilken et al., Mitt. aus dem Papier. Inst., vol. 11-12, 1984, pp. 292-307.
Kroehl et al., Nordic Pulp and Paper Research Journal, vol. 9, 1994, No. 1, pp. 26-30, 36.

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