Automatic particle analyzing system

Details Automatic particle analyzing system Automatic particle analyzing system

1979-11-02

1981-10-13

Wise, Edward J.

Boots, shoes, and leggings

364525, 250204, 356335, G01N 1502

Patent

active

042952000

ABSTRACT:
A measured stream of particles is dropped onto the apex of a distributor e where it is divided into a circular pattern falling through a narrow sizing zone onto the peripheral edge of a rotatable platen. Platen rotation carries each particle into a frame area viewed, preferably, by a microscope and a TV camera the output of which is applied to a computer programmed to analyze selected characteristics. A rotatably-indexed mirror system reflects selected views into the microscope for the analysis. Interfaced with the computer is a signal generator providing feed-back signals that synchronously control system operation. For example, a feed-back signal stops platen rotation when a particle is brought into the viewing or frame area. Other signals control other functions such as the indexing of the mirror system to provide the desired views, i.e. front, back, top, bottom, etc. Scanning devices other than optics can be used if so desired.

REFERENCES:
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patent: 3932733 (1976-01-01), Olsen et al.
patent: 3973725 (1976-08-01), Watanabe et al.
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patent: 4021117 (1977-05-01), Gohde et al.
patent: 4135821 (1979-01-01), Pechin et al.
patent: 4174892 (1979-11-01), Osawa
patent: 4203031 (1980-05-01), Kamachi et al.
patent: 4206650 (1980-06-01), Berber et al.
patent: 4207001 (1980-06-01), Lynch et al.

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