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논문 기본 정보

자료유형
학술대회자료
저자정보
저널정보
한국동력기계공학회 한국동력기계공학회 학술대회 논문집 2006年度 추계학술대회 및 국제심포지움
발행연도
2006.11
수록면
424 - 427 (4page)

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초록· 키워드

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A multi purpose environmental monitoring system has been developed as a commercially available standard using the technique of hetero-core spliced fiber optic sensor, for the purposes of monitoring large scaled structures and preserving natural environments. The monitoring system has been tested and evaluated in a possible outdoor condition in view of the full scaled operation at actual sites to be monitored. Additionally, the developed system in this work conveniently provides us with various options of sensor modules intended for monitoring such physical quantities as displacement, distortion, pressure, binary states, and liquid adhesion. Two channels of optical fiber line were monitored, in each of which three displacement sensor modules were connected in series, in order to examine the performance to a pseudo-cracking experiment in the outdoor situation, and to clarify temperature influences to the system in terms of the coupling of optical connectors and the OTDR stability. The pseudo-cracking experiment successfully observed the actually given cracks by means of calculation based on the detected displacement values and their geometrical arrangement of the used sensor modules. The temperature change ranging from 10 to 20 ℃ resulted from the 10-days free running operation was found to influence the system stability of ±10㎛ mainly because of the coupling instability of the used optical connectors. It was found that fusion splicing instead of the use of connectors reduced the fluctuation down to ±211m. The specification and performances of various option modules have been demonstrated to show the capability of inspecting various physical quantities by the use of the single system which would be suitable for multi-purpose environmental monitoring.

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Abstract
1. 서론
2. 기반기술로서의 헤테로코어형 광파이브센서
3. 멀티환경 모니터링 시스템의 개요와 평가실험
4. 결론
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