Title :
Gas detection by carbon nanotube gas-ionization sensor based on Lyapunov exponent
Author_Institution :
College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, China
Abstract :
In this paper, a novel method utilizing a multi-walled carbon nanotube (MWNT) gas-ionization sensor based on Lyapunov exponent algorithm was proposed for argon, ethanol, acetone, and ammonia detection. The sensor was used as anodic sensor. Responses of MWNT sensor to four gases was measured and processed by Lyapunov exponent. Experimental results showed that the MWNT sensor array based on Lyapunov exponent could distinguish gas species successfully.
Keywords :
Argon; Biosensors; Carbon nanotubes; Electrodes; Ethanol; Gas detectors; Gases; Maximum likelihood estimation; Polyimides; Sensor arrays; Lyapunov exponent; gas-ionization; sensor response; signal processing;
Conference_Titel :
Industrial Mechatronics and Automation (ICIMA), 2010 2nd International Conference on
Conference_Location :
Wuhan, China
Print_ISBN :
978-1-4244-7653-4
DOI :
10.1109/ICINDMA.2010.5538363
