Particle size measuring method and apparatus

Details Particle size measuring method and apparatus Particle size measuring method and apparatus

1981-06-25

1983-06-14

Corbin, John K.

Optics: measuring and testing

For size of particles

By particle light scattering

356 28, G01N 1502

Patent

active

043879934

ABSTRACT:
A particle size measuring apparatus and method has a laser unit and optics that provide a central focused light area surrounded by an annular focused light area. Particles moving with fluid through the center of central focus light area cause the light to scatter. The scattered light is sensed and converted to readable signals indicative of particle size.

REFERENCES:
patent: 3532427 (1970-10-01), Paine
patent: 3548655 (1970-12-01), Rudd
patent: 3941477 (1976-03-01), Schodl
patent: 4140395 (1979-02-01), Kreikebaum
patent: 4348111 (1982-09-01), Goulas et al.
"Simultaneous Velocity and Particle Size Measurements in Two Phase Flows by Laser Anemometry", A. Ungut, A. J. Yule, _D. S. Taylor and N. A. Chigier, University of Sheffield, Sheffield, England, AIAA 16th Aerospace Sciences Meeting, Huntsville, AL, Jan. 16-18, 1978.

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