Measurement of the size of particles

Details Measurement of the size of particles Measurement of the size of particles

1982-05-25

1985-01-08

Willis, Davis L.

Optics: measuring and testing

For size of particles

By particle light scattering

356340, 356342, 356343, 356364, G01N 1502

Patent

active

044924674

ABSTRACT:
A method of determining the size of spherical particles, comprising the operations of illuminating with a beam of circularly polarized light particles the size of which is to be determined, detecting light backscattered by the particles, measuring the angular intensity distribution of the backscattered light and deriving therefrom an indication of the size of the particles.
Various forms of apparatus for carrying out the method also are described.

REFERENCES:
patent: 3653767 (1972-04-01), Liskowitz
patent: 3835315 (1974-09-01), Gravitt, Jr.
patent: 4173415 (1979-11-01), Wyatt
patent: 4286876 (1981-09-01), Hogg et al.
patent: 4385830 (1983-05-01), Webb et al.

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