Fiber Bragg gratings introduced make the technologies great change in the fields of optical fiber communication and optical fiber sensors. 光纤光栅的出现使光纤通信和光纤传感技术有了很大的变化。
Based on the experiments on concrete samples, the sensitivity of the fiber optical sensing techniques adopted in crack monitoring of large dams was tested. 摘要基于混凝土试件试验，对大坝裂缝光纤监测中采用的光纤传感技术的灵敏性进行了测试。
