We have developed the odor recorder for recording and reproducing
smells based on an active odor sensing system. The system has an internal odor
blender and the multiple sensors with partially overlapping specificities. The
odor recipe is determined so that the sensor-array output pattern of the blended
odor can be equal to that of the target odor using multi-input multi-output
feedback control. Once its recipe is determined, the target odor can be reproduced
using the odor blender. The odor recorder enabled the reproduction of the typical
apple flavor using 8 components. Moreover, the odor with its recipe dynamically
changing over a few second was successfully recorded using the odor recorder.