| タイトル | A Portable Electronic Nose For Hydrazine and Monomethyl Hydrazine Detection |
| 本文（外部サイト） | http://hdl.handle.net/2060/20130011297 |
| 著者（英） | Peterson, Barbara V.; Young, Rebecca C.; Griffin, Tim P.; Brooks, Kathy B.; Linnell, Bruce R. |
| 著者所属（英） | NASA Kennedy Space Center |
| 発行日 | 2004-07-26 |
| 言語 | eng |
| 内容記述 | The Space Program and military use large quantities Hydrazine (Hz) and monomethyl hydrazine (MMI-I) as rocket propellant. These substances are very toxic and are suspected human carcinogens. The American Conference of Governmental Industrial Hygienist set the threshold limit value to be 10 parts per billion (ppb). Current off-the-shelf portable instruments require 10 to 20 minutes of exposure to detect 10 ppb concentration. This shortcofriing is not acceptable for many operations. A new prototype instrument using a gas sensor array and pattern recognition software technology (i.e., an electronic nose) has demonstrated the ability to identify either Hz or MM}{ and quantify their concentrations at 10 parts per billion in 90 seconds. This paper describes the design of the portable electronic nose (e-nose) instrument, test equipment setup, test protocol, pattern recognition algorithm, concentration estimation method, and laboratory test results. |
| NASA分類 | Propellants and Fuels |
| レポートNO | KSC-2004-098 |
| 権利 | No Copyright |
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