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Various characteristic of Carbon nanotubes film methane Gas sensor

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3 Author(s)
Xin Li ; Sch. of Electron. & Inf. Eng., Xi''an Jiaotong Univ. ; Junhua Liu ; Changchun Zhu

Various sensing characteristic of carbon nanotube synthesized by low press chemical vapor deposit (LPCVD) method have been studied. The composite sensing film of silicon dioxide and multi-wall nanotubes (SiO 2-MWNTs) is sensitive to methane. The various characteristic such as sensitivity, repeatability, reliability and cross-sensitivity of SiO2-MWNTs composite film gas sensor have been studied. Having been tested in methane 3 times, the sensor keeps the sensitivity steady, which means the sensor has a good repeatability. In concentration recognizing, the temperature is an interfering factor and always leads to error result. It is eliminated using neural network (NN) recognized system

Published in:
Nano/Micro Engineered and Molecular Systems, 2006. NEMS '06. 1st IEEE International Conference on

Date of Conference: 18-21 Jan. 2006

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