DTIC ADA430135: IEEE Sensors Conference pdf

DTIC ADA430135: IEEE Sensors Conference

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This work describes the use of an array of SAWs (surface acoustic wave devices) to detect and identify chemical warfare agents (nerve and mustard simulants) in a background of interferents (methanol, diesel and hexane). Even in a varying concentration and realistic gas delivery profiles, an array of SAWs is able to identify and predict the concentrations of simulants in real-time. This application differs from standard electronic noses (e-noses) as it is analytic. Much of the previous work in the field of sensor arrays and mixtures (usually binary or tertiary) tries to learn the whole sample space, due to the use of non-selective sensors. The SAWs used in this array, although not completely selective have a very high sensitivity to only the simulants. Thus, using the appropriate classification algorithms a real-time chemical detector can be realized. The system was tested with a wide range of gas profiles and was able to identify and quantitate the simulants to a high degree of accuracy

• Creator/s: Defense Technical Information Center
• Date: 10/27/2004
• Year: 2004
• Book Topics/Themes: DTIC Archive, Harmer, Greg, ARMY MEDICAL RESEARCH AND DEVELOPMENT COMMAND ABERDEEN PROVING GROUND MD DIVOF BIO SENSOR RESEARCH, *DETECTION, *ARRAYS, *CHEMICAL AGENT SIMULANTS, *SURFACE ACOUSTIC WAVE DEVICES, ALGORITHMS, QUANTITATIVE ANALYSIS, METHANOLS, CLASSIFICATION, HEXANES

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