Identification of organic solvents by a virtual multisensor system with hierarchical classification
SENSORS, 2002 IEEE - Tập 1 - Trang 382-387 vol.1
Tóm tắt
To improve the selectivity of semiconductor gas sensors temperature modulation is often used We present a study showing the potential of this technique with information gained comparable to multisensor systems. A dynamic operating mode coupled with a low complexity evaluation strategy allows identification of six organic solvent vapors over a wide concentration range (2 - 200 ppm) with a single sensor, for example for leak detection systems. The system features low false alarm rates, in addition interference by other gases such as CO or NO/sub 2/ can be suppressed For even higher identification power switching on-line between different temperature cycles was studied, which provides better information for critical decisions.
Từ khóa
#Solvents #Multisensor systems #Temperature sensors #Sensor systems #Leak detection #Sensor arrays #Temperature control #Electrical resistance measurement #Temperature measurement #Gas detectorsTài liệu tham khảo
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