摘要
研究了一种利用光时域反射计(OTDR)技术的分布式光纤裂缝传感器,测量了裂缝宽度与损耗之间的关系。它可同时测量出裂缝的位置和裂缝的宽度,可测量裂缝的范围在0.2～2mm之间,能够满足一般混凝土结构的裂缝实时检测的需要。
A distributed fiber optical crack sensor is studied in this paper. The relationship between the loss and width is tested. It can measure the position and the width of cracks at the same time. The measuring scope is between 0.2~2 mm.The common requests for the crack monitoring of concrete can be satisfied.
出处
《压电与声光》
CSCD
北大核心
2004年第1期10-12,共3页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金资助项目(60277015)
