STUDY ON DISTRIBUTED FIBER OPTIC CRACK SENSOR FOR CONCRETE STRUCTURES

摘要：

In this paper a novel distributed fiber optic crack sensor based on optical time domain reflectometer (OTDR) is introduced. A novel packaging of the crack sensor is proposed. The bare optical fiber is embedded into the polymer which protects the fiber from fracture and transfers the deformation of the structure to the fiber. Experiment is carried out to evaluate the performance of the distributed fiber optic crack sensor. The primary results show that the fiber optic crack sensor has good linearity between the bend loss and the crack open size. Further experiment is being undertaken.

作者: Jing-Yun Dai Wen-Tao Zhang Hua Xu Bao-Chen Sun Yan-Liang Du

作者单位: Key Lab. of Structure Health Monitoring and Control of Hebei Province, Shijiazhuang Railway Institute, Shijiazhuang 050043, P.R. China

会议类型: 国际会议

会议名称: 第二届国际结构状态评估、监测与改进会议(The Second International Conference on Structural Condition Asessment,Monitoring and Improvement)

会议地点: 长沙

会议语种:英文

页码: 986-987

在线出版日期: 2007-11-19（万方平台首次上网日期，不代表论文的发表时间）