Optical gas analyzer

Details Optical gas analyzer Optical gas analyzer

1976-03-08

1978-01-17

Church, Craig E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250343, G01N 2126

Patent

active

040694208

ABSTRACT:
An optical gas analyzer is disclosed utilizing the infrared absorption principle having a sample chamber and reference chamber with infrared source and detector assembly spaced at opposite ends of and in alignment with the chambers with baffle means provided in cooperating relation with the infrared source to prevent cross-currents with respect thereto and masking means provided in cooperating relation with the detector assembly to mask out a gas having a partially overlapping infrared absorption band. The electronic processing system utilizes the total area under the signal waveform to derive the desired measurement. In addition barometric correction means is provided to permit on site calibration by the user of the gas analyzer.

REFERENCES:
patent: 3171027 (1965-02-01), Wallack
patent: 3206597 (1965-09-01), Fertig
patent: 3562524 (1971-02-01), Moore
patent: 3700891 (1972-10-01), Friedrich
patent: 3709600 (1973-01-01), Ganshorn
patent: 3911277 (1975-10-01), Cederstrand
patent: 3932754 (1976-01-01), Riedl
patent: 3976883 (1976-08-01), Krakow

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