Apparatus for measuring smoke density

Details Apparatus for measuring smoke density Apparatus for measuring smoke density

1976-04-26

1978-01-03

Corbin, John K.

Optics: measuring and testing

Inspection of flaws or impurities

Bore inspection

250343, 250576, G01N 2126

Patent

active

040663647

ABSTRACT:
Apparatus for measuring smoke density comprising a venturi passage through which smoke can pass, and a light source and at least one light-reflecting surface arranged in the vicinity of the passage to pass and reflect a light beam transversely through the throat of the venturi to form a V-shaped or multiple V-shaped beam.

REFERENCES:
patent: 3496558 (1970-02-01), Willson et al.
patent: 3816004 (1974-06-01), Bignardi
patent: 3885162 (1975-05-01), Geertz
patent: 3932137 (1976-01-01), Culpepper
patent: 3958122 (1976-05-01), Jowett et al.

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