Small concentrations of selected gases measured automatically. Proposed multiple-laser-diode spectrometer part of system for measuring automatically concentrations of selected gases at part-per-billion level. Array of laser/photodetector pairs measure infrared absorption spectrum of atmosphere along probing laser beams. Adaptable to terrestrial uses as monitoring pollution or control of industrial processes.
Multiple-Diode-Laser Gas-Detection Spectrometer
NASA Tech Briefs ; 12 , 4
1988-04-01
Miscellaneous
No indication
English
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