Electronic Odour Measurement and Sensing using E-Nose

An instrument for electronic odour sensing has been developed and used to classify many different materials, including beers, spirits and alcohols. The next stage in development is to begin to relate subjective odour descriptors (e.g. fruity, minty) to quantitative sensor array measurements. Both neural network and multivariate statistical techniques are required to accomplish this task . The ultimate goal is to provide a measurement standard for odours. The integration of sensor technology, signal conditioning, data acquisition and pattern recognition are required for this exciting prospect. An electronic nose (e-nose) is an intelligent sensing device that uses an array of gas sensors of partial and overlapping selectivity along with a pattern recognition component to distinguish between both simple and complex odors. To date in a number of applications from the food industry to medical diagnosis enoses are used. Index Terms — electronic odour , sensing device , electronic noses (e-nose) , odour measurement , machine olfaction . ——————————  ——————————