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Atmospheric Composition Monitor Assembly for Space Station Freedom Environmental Control and Life Support System
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English
Abstract
The Atmospheric Composition Monitor Assembly (ACMA) is an instrument for monitoring the composition of the atmosphere in Space Station Freedom. It is part of the Environmental Control and Life Support System. The ACMA is composed of the following major instruments: Major Constituent Analyzer (MCA); Carbon Monoxide Monitor (COM); Trace Contaminant Monitor (TCM); and Particle Counter Monitor (PCM). The MCA is a mass spectrometer based system that provides continuous monitoring of major atmospheric constituents (O2, CO2, N2, H2O) and of hydrogen and methane. The COM is a non-dispersive infrared (NDIR) instrument for the continuous monitoring of trace levels of carbon monoxide, The TCM is a gas chromatograph-mass spectrometer (GCMS) for monitoring trace levels of contaminants, The PCM monitors the concentration of particulates in the 0.5 to 100 micron range using a light scattering technique.
Authors
Citation
Rotheram, M., "Atmospheric Composition Monitor Assembly for Space Station Freedom Environmental Control and Life Support System," SAE Technical Paper 891451, 1989, https://doi.org/10.4271/891451.Also In
References
- A Mass Spectrometer Sensor System for Metabolic Analysis and Atmospheric Monitoring on Skylab and Future Manned Spacecraft Paper present at Twenty/First Annual Conference on Mass Spectrometry and Allied Topics May 1973 San Francisco, CA
- Trace Gas Analyzer, Paper presented at Proceedings of the JANNAF Safety and Environmental Protection Subcommittee May 1987 Published by Chemical Propulsion Information Agency The Johns Hopkins University Applied Physics Laboratory Laurel, MA 20707