ARTIFICIAL OLFACTORY SENSOR

A set of eight piezoelectric sensors incorporating different hydrophob ic polymers was fabricated in order to develop a chemical sensor which can detect fragrances and evaluate them in the subjective terms of hu man reactions. The sensors are effective at detecting hydrophobic frag rances and classify them in a similar way to a human nose. The sensor responses are strongly correlated with human responses with multiple c orrelation coefficients of more than 0.7 (p < 0.02). These results ind icate the possibility of developing an artificial olfactory sensor bas ed on adsorbate detection.