Abstract
An odor recorder has the capability of not only recording odors electronically but also reproducing it anytime and anywhere. In this paper, we developed a new type of odor recorder, composed of the odor blenders that generate the mixture of components at any composition using solenoid valves controlled by the delta–sigma modulation method. We optimized the parameters of modulation and the characteristic of the low pass filter by simulation. Moreover, the recipes of apple flavor, jasmine scent, and spice flavor were successfully determined using the developed odor recorder by experiment. The new method is suitable for realizing an odor recorder for many components.
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