Optics: measuring and testing – With plural diverse test or art
356 73, G01N 2100
A method and apparatus for obtaining information on and identifying particles in a liquid suspension wherein the particles in suspension are moved in a stream through a plurality of sensing zones such that each particle passes through the sensing zones serially. As each particle passes through a sensing zone a particular characteristic of the particle will be measured and its time relationship with the preceding and succeeding particle passing through that zone will also be preserved to form a pattern of time relationships. The pattern of time relationships and the particle characteristics at a particular sensing zone will be correlated with the pattern of time relationships and particle characteristics at either a preceding or succeeding sensing zone in order to correlate all of the characteristics for the particle.
The stream may also be passed to a substrate and the particles laid out on the substrate in a particular spatial pattern. The spatial pattern is also correlated with the time relationships and particle characteristics at the last sensing zone preceding the substrate in order to correlate the particle on the substrate with all of its measured characteristics.
patent: 3822095 (1974-07-01), Hirschfield
patent: 3924947 (1975-12-01), Hogg
patent: 3976862 (1976-08-01), Curbelo
Coulter Electronics Inc.
McGraw Vincent P.
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