Towards an artificial olfactory mucosa for improved odour classification

被引:14
作者
Gardner, Julian W. [1 ]
Covington, James A.
机构
[1] Univ Warwick, Sch Engn, Coventry CV4 7AL, W Midlands, England
[2] Univ Leicester, Dept Engn, Leicester LE1 7RH, Leics, England
来源
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 2007年 / 463卷 / 2083期
关键词
electronic nose; artificial olfaction; chemical sensors; olfactory mucosa; ACTIVITY PATTERNS; COMPOSITE REPRESENTATION;
D O I
10.1098/rspa.2007.1844
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Here, we report on a biologically inspired analytical system that represents a new concept in the field of machine olfaction. Specifically, this paper describes the design and fabrication of a novel sensor system, based upon the principle of 'nasal chromatography', which emulates the human olfactory mucosa. Our approach exploits the physical positioning of a series of broadly tuned sensors (equivalent to the olfactory epithelium) along the length of a planar chromatographic channel (analogous to the thin mucus coating of the nasal cavity) from which we extract both spatial (response magnitude) and temporal (retentive delay) sensor signals. Our study demonstrates that this artificial mucosa is capable of generating both spatial and temporal signals which, when combined, create a novel spatio-temporal representation of an odour. We believe that.such a system not only offers improved odour discrimination over a sensor array-based - electronic nose, but also shorter analysis times than conventional gas chromatographic techniques.
引用
收藏
页码:1713 / 1728
页数:16
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