実時間参照方式による匂い記録·再生システムの環境変化に対するロバスト性向上

Abstract

The new type of odor recorder called real-time reference system is proposed to improve robustness against environmental changes, especially humidity and temperature changes. Since an odor sensor depends on humidity and temperature, these conditions have to be precisely controlled in a general odor sensing system. However, the odor recorder we developed in this paper does not need those requirements because of the real-time relative measurement based on the active sensing method, where a target odor and the reproduced odor were alternately exposed to the sensor array to reduce the influence of the dynamic environmental changes. We describe the design of the feedback controller for the real-time reference system and the experimental results of recording odors using the system. The recipes of apple flavors made up of four components were successfully recorded under the varying environments of humidity and temperature. Once the recipe for the target odor is recorded electronically by the odor recorder, it can be reproduced anytime and anywhere using an odor blender.