NDLI: Investigation of international space station major constituent analyzer anomalous oru 02 performance (Document No: 20130014088)

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Investigation of international space station major constituent analyzer anomalous oru 02 performance (Document No: 20130014088)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Pargellis, Andrew Matty Sr., Chris Burchfield, David E. Gardner, Ben D. Thoresen, Souzan Granahan, John Gentry, Grey Erwin, Phillip M.
Copyright Year	2013
Description	The Major Constituent Analyzer (MCA) is a mass spectrometer based system that measures the major atmospheric constituents on the International Space Station. In 2011, two MCA ORU 02 analyzer assemblies experienced premature on-orbit failures. These failures were determined to be the result of off-nominal ion source filament performance. Recent product improvements to ORU 02 designed to improve the lifetime of the ion pump also constrained the allowable tuning criteria for the ion source filaments. This presentation describes the filament failures as well as the corrective actions implemented to preclude such failures in the future.
File Size	1296648
Page Count	8
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20130014088
Archival Resource Key	ark:/13960/t49p8205v
Language	English
Publisher Date	2013-07-14
Access Restriction	Open
Subject Keyword	Spacecraft Instrumentation And Astrionics Methane Mass Spectrometers International Space Station Atmospheric Composition Hydrogen Carbon Dioxide Ion Sources Ion Pumps Water Vapor Nitrogen Failure Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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