Method and apparatus for measuring particle size

Details Method and apparatus for measuring particle size Method and apparatus for measuring particle size

1982-04-07

1984-12-04

Bernstein, Hiram H.

Chemistry: analytical and immunological testing

Process or composition for determination of physical state...

436145, 436155, 356335, G01N 1502

Patent

active

044865350

ABSTRACT:
The disclosure relates to an apparatus for measuring the size of gas entrained particles by detecting the rate of incandescent burning of the particles. Entrained particles are passed at a controlled velocity through a heated zone where they are gradually consumed. The radiant energy emitted by the burning particles is detected at varying locations along the path of flow through the heated zone. An indication of particle size distribution is obtained by deriving the third derivative of detected radiant energy intensity with respect to distance of flow through the heated zone.

REFERENCES:
patent: 3518001 (1970-06-01), Hell
patent: 3680961 (1972-08-01), Rudd
patent: 3740149 (1973-06-01), Whetten
patent: 3790282 (1974-02-01), Fielding
patent: 3825345 (1974-07-01), Lorenz
patent: 3851169 (1974-11-01), Faxvog
patent: 3860345 (1975-01-01), Railleere et al.
patent: 4021117 (1977-05-01), Gohde et al.
patent: 4279512 (1981-07-01), Tunstall

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