NASA NTRS · 19740000243
Improved nondispersive infrared analyzer
Abstract
Light from radiant energy source passes through filter, sample, and reference gas chambers to detector. Chamber with amount of gas to be measured is sealed. Filter may be gelatinous, interference, dispersive, or negative-gas, as required.
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Dimeff, J.. 1974-12-01. Improved nondispersive infrared analyzer. https://ntrs.nasa.gov/citations/19740000243
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