NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 14 of 32462
Quantification of Trace Chemicals Using Vehicle Cabin Atmosphere Monitor
External Online Source: hdl:2014/45246
Author and Affiliation:
Lee, Seungwon(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Mandrake, Lukas(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Bornstein, Benjamin(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Bue, Brian(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Abstract: A system to monitor the concentrations of trace chemicals in cabin atmosphere is one of the most critical components in long-duration human flight missions. The Vehicle Cabin Atmosphere Monitor (VCAM) is a miniature gas chromatograph mass spectrometer system to be used to detect and quantify trace chemicals in the International Space Station. We developed an autonomous computational process to quantify trace chemicals for use in VCAM. The process involves the design of a measured signal quantification scheme, the construction of concentration curves (i.e. the relationship between concentration and ion count measured by VCAM), the decision rule of applying high- or low-gain concentration curves, and the detection of saturation, low-signals, and outliers. When the developed quantification process is applied, the average errors of concentration for most of trace chemicals are found to be between 14% and 66%.
Publication Date: Mar 07, 2009
Document ID:
20150011952
(Acquired Jul 01, 2015)
Subject Category: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT; INORGANIC, ORGANIC AND PHYSICAL CHEMISTRY
Document Type: Conference Paper
Meeting Information: 2009 IEEE Aerospace Conference; 7-14 Mar. 2009; Big Sky, MT; United States
Meeting Sponsor: Institute of Electrical and Electronics Engineers; New York, NY, United States
Financial Sponsor: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Description: 12p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: CABIN ATMOSPHERES; INTERNATIONAL SPACE STATION; TRACE CONTAMINANTS; ERRORS; CONCENTRATION (COMPOSITION); DECISION MAKING; SIGNAL DETECTION; QUANTITATIVE ANALYSIS; GAS CHROMATOGRAPHY; MASS SPECTROMETERS
Availability Source: Other Sources
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: July 01, 2015
Contact Us