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Development of an in situ calibration technique for combustible gas detectorsThis paper describes the development of an in situ calibration procedure for combustible gas detectors (CGD). The CGD will be a necessary device for future space vehicles as many subsystems in the Environmental Control/Life Support System utilize or produce hydrogen (H2) gas. Existing calibration techniques are time-consuming and require support equipment such as an environmental chamber and calibration gas supply. The in situ calibration procedure involves utilization of a water vapor electrolysis cell for the automatic in situ generation of a H2/air calibration mixture within the flame arrestor of the CGD. The development effort concluded with the successful demonstration of in situ span calibrations of a CGD.
Document ID
19770064011
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Shumar, J. W.
(Life Systems, Inc. Cleveland, OH, United States)
Wynveen, R. A.
(Life Systems, Inc. Cleveland, Ohio, United States)
Lance, N., Jr.
(NASA Johnson Space Center Houston, Tex., United States)
Lantz, J. B.
(Life Systems, Inc. Cleveland, OH, United States)
Date Acquired
August 9, 2013
Publication Date
July 1, 1977
Subject Category
Spacecraft Instrumentation
Report/Patent Number
ASME PAPER 77-ENAS-22
Meeting Information
Meeting: Intersociety Conference on Environmental Systems
Location: San Francisco, CA
Country: US
Start Date: July 11, 1977
End Date: July 14, 1977
Sponsors: SAE, AIChE, ASMA, AIAA, ASME
Accession Number
77A46863
Distribution Limits
Public
Copyright
Other

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