Apparatus for measuring particle properties

Details Apparatus for measuring particle properties Apparatus for measuring particle properties

1996-11-19

1998-08-11

Buczinski, Stephen C.

Optics: measuring and testing

Velocity or velocity/height measuring

With light detector

356336, 356338, 356342, G01P 336, G01N 2100

Patent

active

057934789

ABSTRACT:
An apparatus for determining particle properties from detected light scattered by the particles. The apparatus uses a light beam with novel intensity characteristics to discriminate between particles that pass through the beam and those that pass through an edge of the beam. The apparatus can also discriminate between light scattered by one particle and light scattered by multiple particles. The particle's size can be determined from the intensity of the light scattered. The particle's velocity can be determined from the elapsed time between various intensities of the light scattered.

REFERENCES:
patent: 4251733 (1981-02-01), Hirlemann, Jr.
patent: 4387993 (1983-06-01), Adrian
patent: 4636075 (1987-01-01), Knollenberg
patent: 4707130 (1987-11-01), Hofmann et al.
patent: 4840486 (1989-06-01), Schodl
patent: 4851697 (1989-07-01), Schodl
patent: 4854705 (1989-08-01), Bachalo
patent: 4859055 (1989-08-01), Gal

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