Journal
JAPANESE JOURNAL OF APPLIED PHYSICS
Volume 55, Issue 11, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.7567/JJAP.55.1102B3
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Funding
- MEXT, Japan [16K21602, 15H03588]
- TEPCO Memorial Foundation
- World Premier International Research Center Initiative (WPI) on Materials Nanoarchitectonics (MANA)
- Grants-in-Aid for Scientific Research [15H03588, 16K21602] Funding Source: KAKEN
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Artificial olfaction, that is, a chemical sensor system that identifies samples by smell, has not been fully achieved because of the complex perceptional mechanism of olfaction. To realize an artificial olfactory system, not only an array of chemical sensors but also a valid feature extraction method is required. In this study, we achieved the identification of spices by smell using nanomechanical membrane-type surface stress sensors (MSS). Features were extracted from the sensing signals obtained from four MSS coated with different types of polymers, focusing on the chemical interactions between polymers and odor molecules. The principal component analysis (PCA) of the dataset consisting of the extracted parameters demonstrated the separation of each spice on the scatter plot. We discuss the strategy for improving odor identification based on the relationship between the results of PCA and the chemical species in the odors. (C) 2016 The Japan Society of Applied Physics
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