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Journal Article
Miniaturized Electronic Nose System Based on Personal Digital Assistant
- Authors
- Yong Shin Kim, Yoon Seok Yang, Seung-Chul Ha, Hyeon-Bong Pyo, Chang Auck Choi
- Issue Date
- 2005-10
- Citation
- ETRI Journal, v.27, no.5, pp.585-594
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- A small electronic nose (E-Nose) system has been developed using an 8-channel vapor detection array and personal digital assistant (PDA). The sensor array chip, integrated on a single microheater-embedded polyimide substrate, was made of carbon black-polymer composites with different kinds of polymers and plasticizers. We have successfully classified various volatile organic compounds such as methanol, ethanol, i-propanol, benzene, toluene, n-hexane, n-heptane, and c-hexane with the aid of the sensor array chip, and have evaluated the resolution factors among them, quantitatively. To achieve a PDA-based E-Nose system, we have also elaborated small sensor-interrogating circuits, simple vapor delivery components, and data acquisition and processing programs. As preliminary results show, the miniaturized E-Nose system has demonstrated the identification of essential oils extracted from mint, lavender, and eucalyptus plants.
- KSP Keywords
- Data Acquisition(DAQ), Data acquisition and processing, E-nose system, Electronic nose system, N-Hexane, Personal digital assistant(PDA), Polyimide substrate, Polymer composites, Sensor array, Vapor detection, array chip