Smoke-measuring transducer

Details Smoke-measuring transducer Smoke-measuring transducer

1977-10-14

1979-05-22

Corbin, John K.

Optics: measuring and testing

For light transmission or absorption

Of fluent material

250564, 250573, 340630, G01N 2128

Patent

active

041556534

ABSTRACT:
A smoke transducer having an integral photo-electric optical system and h isolated circuitry. A calibration wedge is designed to permit field calibration and to structurally interfit within the sampling chamber.

REFERENCES:
patent: 2966092 (1960-12-01), Hartridge
patent: 3590327 (1971-06-01), Thomae
patent: 3659278 (1972-04-01), Jensen
patent: 3760395 (1973-09-01), Muller
patent: 3790289 (1974-02-01), Schmidt
patent: 3838925 (1974-10-01), Marks
patent: 3850529 (1974-11-01), Brugger
patent: 3874795 (1975-04-01), Packham et al.
patent: 3885162 (1975-05-01), Geertz
patent: 3922655 (1975-11-01), Lecuyer

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