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교량 안전 진단 계측에서의 광섬유 격자센서와 전기식 센서 비교 실험 연구
김종관(Kim JongKwan),이상민(Lee SangMin),이정석(Lee JungSuk),이봉완(Lee BongWan) 한국구조물진단유지관리학회 2006 한국구조물진단학회 학술발표회논문집 Vol.10 No.1
In this study we report the development of a new type of optical Fiber Bragg Grating(FBG) sensor system for the purpose of structural health monitoring. We have compared the results obtained by using three kinds of FBG sensors with conventional electric sensors in bridge health monitoring. Strain, displacement and acceleration measurements were conducted to determine the health or condition of the bridge. These results show good agreements between FBG and electric sensors. A higher level of signal sensitivity was obtained in case of FBG as compared to the electric sensors. This study thus proves that FBG sensors are a promising alternative in structural health monitoring systems as they overcome the electrical noise drawback.