新一代光纤在大坝监测中的应用前沿

摘要

本文分析了新一代光纤光栅传感的基本原理,在坝体模拟槽试验中具体验证了波长变化与温度的关系,研究用于大坝监测的光纤光栅传感器的系统构成,根据其在现实中的应用成功地大规模布设了光栅应变传感器与温度传感器；监测结果表明光纤Bragg光栅传感器监测系统具有良好的稳定性与耐久性,为建筑结构的健康诊断提供可靠的依据,综合以上方面简要的论述了新一代光纤在大坝监测中的应用.%This paper analyzed the basic principle of fiber grating sensor with new generation, and the relation between wavelengths change and temperature in dam simulated 9lot experiment was verified specifically. The research was used for system components of fiber grating sensor of dam monitoring, and grating strain sensors and temperature sensors were successfully set up, according to its application in reality. The monitoring results show that fiber Bragg grating sensor monitoring system has a good stability and durability, which provide reliable basis for health diagnosis of building structure. Review of the above, the application of optical fiber with new generation in dam monitoring was discussed.