Split detector

Details Split detector Split detector

1979-11-29

1982-03-16

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250339, G01J 100

Patent

active

043202977

ABSTRACT:
A gas analyzer is disclosed which provides a dual channel capability for the simultaneous determination of the presence and concentration of two gases in a stream of sample gas and which has a single infrared source, a single sample cell, two infrared bandpass filters, and two infrared detectors.
A separator between the filters and detectors prevents interchange of radiation between the filters. The separator is positioned by fitting it in a slot.

REFERENCES:
patent: 2775160 (1956-12-01), Foskett et al.
patent: 2806144 (1957-09-01), Berger et al.
patent: 3539804 (1970-11-01), Billetdeaux et al.
patent: 3860344 (1975-01-01), Garfunkel
patent: 3911277 (1975-10-01), Cederstrand et al.
patent: 3920993 (1975-11-01), Cederstrand et al.
patent: 4157470 (1979-06-01), Kotaka et al.

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