基于OTDR的混凝土裂缝测量技术  

Measurement of Concrete Cracks Based on OTDR

作　　者：黄定卫[1] 张莹[1] 赵建伟[1] 

机构地区：[1]西北核技术研究所,西安710024

出　　处：《光纤与电缆及其应用技术》2011年第3期31-33,共3页Optical Fiber & Electric Cable and Their Applications

摘　　要：光纤传感技术运用于混凝土裂缝测量是检测混凝土结构损伤的一种有效方式。分析了该技术的原理,并通过混凝土模型实验,探讨了裂缝与光纤中心轴夹角为30°、45°、60°时裂缝宽度与光损耗的定量关系,对该技术的可行性进行了验证。Optical fiber sensing technology used in the concrete crack measurement is an effective way to measure the structural damage in concrete structure. The principle of the technology is analyzed, and the quantitative relation between optical loss and crack width at the angles between crack and fiber axis being 30°, 45°, 60°, respectively is explored, finally the feasibility of the technology is verified.

关 键 词：光纤传感 混凝土裂缝 光损耗 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置]