Title :
Novel technique using response characteristics to identify volatile organic compounds
Author :
Sriyudthsak, Mana ; Lertnimitthum, Nirand ; Nakpeerayuth, Suvit
Author_Institution :
Dept. of Electr. Eng., Chulalongkorn Univ., Bangkok, Thailand
Abstract :
A novel technique using response characteristic curves from sensors to identify volatile organic compounds is proposed. The data obtained from rise-time, peak-time and recovery-time are used as representatives for the characteristics of the response curves. The measuring system consists of 3 semiconductor gas sensors. Then, 9 data points are obtained for each measurement. Volatile organic compounds (VOCs), such as ethyl alcohol, acetone, ammonia, acetaldehyde are used as samples to be identified. It is found that the VOCs are effectively identified with this technique
Keywords :
gas sensors; organic compounds; pattern recognition; NH3; acetaldehyde; acetone; ammonia; artificial neural network; ethyl alcohol; peak-time; recovery-time; response characteristic curves; response characteristics; rise-time; semiconductor gas sensors; sensors; volatile organic compounds; Data mining; Data processing; Fluid flow measurement; Gas detectors; Kinetic theory; Microcomputers; Sensor phenomena and characterization; Time factors; Volatile organic compounds; Voltage;
Conference_Titel :
Solid State Sensors and Actuators, 1997. TRANSDUCERS '97 Chicago., 1997 International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-3829-4
DOI :
10.1109/SENSOR.1997.635264
