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Continued Development of Compact Multi-Gas Monitor for Life Support Systems Control in SpaceMiniature optical gas sensors based on luminescent materials have shown great potential as alternatives to NIR-based gas sensor systems for the Portable Life Support System (PLSS). The unique capability of luminescent sensors for carbon dioxide and oxygen monitoring under wet conditions has been reported, as has the fast recovery of humidity sensors after long periods of being wet. Lower volume and power requirements are also potential advantages over both traditional and advanced non-dispersive infrared (NDIR) gas sensors, which have so far shown longer life than luminescent sensors. In this paper we present the most recent results in the development and analytical validation of a compact multi-gas sensor unit based on luminescent sensors for the PLSS. Results of extensive testing are presented, including studies conducted in Intelligent Optical Systems laboratories, a United Technologies Corporation Aerospace Systems (UTC) laboratory, and a Johnson Space Center laboratory. The potential of this sensor technology for gas monitoring in PLSSs and other life support systems, and the advantages and limitations found through detailed sensor validation are discussed.
Document ID
20160003889
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Delgado-Alonso, Jesus (Intelligent Optical Systems, Inc. Torrance, CA, United States)
Phillips, Straun (Intelligent Optical Systems, Inc. Torrance, CA, United States)
Berry, David (Intelligent Optical Systems, Inc. Torrance, CA, United States)
DiCarmine, Paul (Intelligent Optical Systems, Inc. Torrance, CA, United States)
Chullen, Cinda (NASA Johnson Space Center Houston, TX, United States)
Quinn, Gregory (Hamilton Sundstrand Space Systems International, Inc. Windsor Locks, CT, United States)
Date Acquired
March 25, 2016
Publication Date
July 10, 2016
Subject Category
Man/System Technology And Life Support
Report/Patent Number
JSC-CN-35645
Meeting Information
Meeting: International Conference on Environmental Systems (ICES) 2016
Location: Vienna
Country: Austria
Start Date: July 10, 2016
End Date: July 14, 2016
Sponsors: International Conference On Environmental Systems, Inc. (ICES)
Funding Number(s)
CONTRACT_GRANT: NNX11CE46P
Distribution Limits
Public
Copyright
Public Use Permitted.

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