Discrimination of Aromas from Several Kinds of Alcohol Using Synthetic-resin-film-coated Quartz Resonator Smell Sensor

Abstract

Transient response curves for aromas from several kinds of alcohol such as Fruit Liquor(8%), Wine(14%), Japanese Sake(15%) and Whisky(43%) are observed using quartz-crystal-resonator gas sensor coated with synthetic-resin-film (acrylic resin, alkyd resin or urethane resin).
The pattern recognition analysis using principal component analysis or neural network analysis is carried out using four parameters which characterize the transient response curves. The recognition probability of neural network for four kinds of alcohol is 100% for 20 trials.