Program
Tutorials
Keynote Speakers
 Final Program
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Title:
BIOMIMETIC SENSORS FOR CHEMICAL SENSING: ELECTRONIC NOSES AND TONGUES
By:
Dr. Julian Gardner, Professor, Warwick University
Description:
The first part of the tutorial starts with a basic introduction to the human senses of small and taste and how these define the concept of flavour. This is following by a brief description of how we measure smells in products and define its odor intensity and notes.
The second part of the tutorial is an overview of the field of artificial olfaction, that is how novel electronic sensors have been designed to try and measure smells based upon arrays of chemical sensors as well as using analytical instrumentation, such as gas chromatography, mass spectrometry and ion mobility spectrometry. This includes some basic discussion of the different pattern recognition techniques employed such as linear vs. non-linear and static vs dynamic (i.e. time dependent). Various applications are described in the fields of food & drinks, environmental, health diagnostics and security - as well as providing commercial instruments available today.
The final part of the tutorial is a discussion of some selected examples of more advanced topics in this field of research. In particular, we cover the design of computational models of the olfactory mucosa, the olfactory bulb and cortex, and their implementation via microsystems and analogue VLSI technology. Lastly, we return to the topic of flavour with a combination of an electronic tongue with an artificial nose to create a flavour sensor!
Some background material:
- Gardner JW, Covington JA, Tan S, Pearce TC 2007 Proc. Roy. Soc. A, 463, 1713-1728 "Towards an artificial olfactory mucosa for improved odour classification"
- Koickal T, Hamilton A, Tan SL, Covington JA, Gardner JW and Pearce TC 2006 IEEE Transactions on Circuits and Systems I, 54, 1-14 "Analog VLSI circuit implementation of an adaptive neuromorphic olfaction chip"
- Gardner JW and Yinon J (2004) Electronic Noses and Sensors for the Detection of Explosives, NATO Science Series II Mathematics, Physics and Chemistry - Vol.159, Kluwer, Dordrecht, pp324. ISBN 1-4020-2317-0 (hardbound) and 1-4020-2318-9 (paperback).
- Pearce TC, Schiffman SS, Nagle HT, Gardner JW (2003) Handbook of Machine Olfaction, Wiley-VCH, Dordrecht, pp592. ISBN 3-527-30358-8.
- Gardner JW and Bartlett PN (1999) Electronic noses: principles and application, Oxford University Press, Oxford, pp245. ISBN 0-19-855955-0.
- Cole M, Sehra G, Gardner JW and Varadan VK 2004 IEEE Sensors Journal, 4, 543-550 "Development of smart tongue devices for measurement of liquid properties"
- Sehra G, Cole M, and Gardner JW 2004 Sensors and Actuators B, 103, 233-239 "Miniature tasting system based on dual SH-SAW sensor device: an electronic tongue"
- Hines EL, Llobet E and Gardner JW 1999 Proc. IEE: Circuits, Systems and Devices 146 297-310 "Electronic noses: a review of signal processing techniques"
Full publication list is available from www.warwick.ac.uk/SRL electronics
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