Recently, with the improvement of our life level, the quality management of foods has been required, however the taste and odor sensors for evaluating foods have yet been undeveloped. We investigated a new taste/odor sensor utilizing the optimized sensory device (OSD) which is prepared from sintering the mixture of the magnetic semiconductor powder such as Mn-Zn ferrite and ruthenium compound. When various taste and odor components included in food adheres to the OSD. resistance or electromotive force based on surface electric conduction of the OSD change. therefore it can be clearly discriminated the sort and quality of foods. Moreover, the detected data are displayed as the pattern chart through computer processing. This paper describes preparation of a thick-film OSD and construction of the multi-channel taste/odor recognition system for some drinks.
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