Abstract: This paper has summed up the composition,principle, type and characteristic of the optic fibre Bragg grating sensor (FBG), and has introduced the present research in the hydroelectric projects of the optic fibre Bragg grating sensor and the use instances at home. This paper has analyzed the existing weak points, has pointed out the application and prospect of the optic fibre Bragg grating sensor in the dam safety monitoring.

摘要： 概述了光纤Bragg光栅传感器（FBG）的组成、原理、类型及特点，介绍了目前光纤Bragg光栅传感器在水电工程中的研究以及国内应用实例。分析了现有应用的不足之处，指出了光纤Bragg光栅传感器在大坝安全监测中的应用及前景。