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A gas filter correlation analyzer for methaneA fast-response instrument for monitoring CH4 was designed and tested using a modified nondispersive infrared technique. An analysis of the single-beam rotating-cell system is presented along with the signal processing circuit. A calibration of the instrument shows that the technique can be used to measure CH4 concentrations as small as 5 ppm-m and the effects of interfering gases are analyzed.
Document ID
19790033838
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Sebacher, D. I. (NASA Langley Research Center Hampton, Va., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: In: Joint Conference on Sensing of Environmental Pollutants
Location: New Orleans, LA
Start Date: November 6, 1977
End Date: November 11, 1977
Accession Number
79A17851
Distribution Limits
Public
Copyright
Other

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