The novel EOS/sup 835/ electronic nose sniffs out the Italian espresso coffee quality

摘要

We present the novel electronic olfactory system EOS/sup 835/ manufactured by Sacmi Imola s.c.a.r.l. based on the University of Brescia electronic nose prototype Pico2. The EOS/sup 835/ is a reliable system equipped with very sensitive and stable thin-film metal oxide gas sensors. A new feature extraction algorithm (phase space integral) has been applied to improve the system classification performance. The electronic nose has been used to evaluate the quality of the Italian espresso coffee produced by Jolly Caffe S.p.A. in order to determine the best time for packaging.