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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 11    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 11, November 2011
Carbon black polymer composite gas sensor for electronic nose
Full Text(PDF, 3000)  PP.  
Author(s)
Fauzan Khairi Che Harun, Andik Marwintan Jumadi, Nasrul Humaimi Mahmood
KEYWORDS
Carbon black, E-nose, Gas sensor, polymer, LabVIEW, Metal oxide semiconductors (MeOX), surface acoustic wave(SAW)
ABSTRACT
Nowadays, electronic noses (E-nose) become popular in industry. There are a few types of E-noses which are used to detect odorant and gases such as surface acoustic wave (SAW) device, optical sensor, metal oxide semiconductors (MeOX), and carbon black polymer composite. Electronic nose is a device that can be mimicking biological human nose, which can detect and differentiate types of odorant. This work focuses on how to fabricate carbon black polymer composite gas sensor. In addition, constant current source circuit has been designed to act as interface circuitry so that the change of resistance when exposed to the gas can be observed via LabVIEW. Besides that, the characteristics of each sensor were observed and study. This is to ensure the fabricated sensor gives the same responds with actual sensor. The result from the experiments shows that the fabricated carbon black polymer composite gas able to detect and gives respond just like the actual gas sensor.
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