Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2007.11a
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- Pages.364-364
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- 2007
Improved sensitivity of surface acoustic wave gas sensor by using polyurethane absorption layer
폴리우레탄 감지막에 의한 표면탄성파 가스 센서의 감지능 향상
- Yoo, Beom-Keun (Korea Institute of Science and Technology) ;
- Park, Yong-Wook (Namseoul Univ.) ;
- Choi, Doo-Jin (Yonsei Univ.) ;
- Kim, Hyun-Jai (Korea Institute of Science and Technology) ;
- Kim, Jin-Sang (Korea Institute of Science and Technology) ;
- Yoon, Seok-Jin (Korea Institute of Science and Technology)
- Published : 2007.11.01
Abstract
This paper presents characteristics of surface acoustic wave (SAW) gas sensor for detecting volatile gases such as ethanol gas by measuring phase shift of output signal. A delay-line with a center frequency of 400MHz was fabricated on 128o Y-Z