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Harmful Gas Recognition Exploiting a CTL Sensor Array
School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, China
Qianjiang College, Hangzhou Normal University, Hangzhou 310012, China
* Author to whom correspondence should be addressed.
Received: 23 July 2013; in revised form: 4 September 2013 / Accepted: 18 September 2013 / Published: 9 October 2013
Abstract: In this paper, a novel cataluminescence (CTL)-based sensor array consisting of nine types of catalytic materials is developed for the recognition of several harmful gases, namely carbon monoxide, acetone, chloroform and toluene. First, the experimental setup is constructed by using sensing nanomaterials, a heating plate, a pneumatic pump, a gas flow meter, a digital temperature device, a camera and a BPCL Ultra Weak Chemiluminescence Analyzer. Then, unique CTL patterns for the four types of harmful gas are obtained from the sensor array. The harmful gases are successful recognized by the PCA method. The optimal conditions are also investigated. Finally, experimental results show high sensitivity, long-term stability and good linearity of the sensor array, which combined with simplicity, make our system a promising application in this field.
Keywords: CTL; sensor array; pattern recognition
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MDPI and ACS Style
Wang, Q.; Xie, L.; Zhu, B.; Zheng, Y.; Cao, S. Harmful Gas Recognition Exploiting a CTL Sensor Array. Sensors 2013, 13, 13509-13520.
Wang Q, Xie L, Zhu B, Zheng Y, Cao S. Harmful Gas Recognition Exploiting a CTL Sensor Array. Sensors. 2013; 13(10):13509-13520.
Wang, Qihui; Xie, Lijun; Zhu, Bo; Zheng, Yao; Cao, Shihua. 2013. "Harmful Gas Recognition Exploiting a CTL Sensor Array." Sensors 13, no. 10: 13509-13520.