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Apparatus for measuring particle properties

United States Patent

5,793,478
August 11, 1998
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
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.
Rader; Daniel J. (Albuquerque, NM), Castaneda; Jaime N. (Albuquerque, NM), Grasser; Thomas W. (Albuquerque, NM), Brockmann; John E. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
08/ 752,337
November 19, 1996
This invention was made with Government support under Contract DE-AC04-94AL85000 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.