摘要
基于光时分复用技术和光时域反射原理,提出了一种新颖的FBG-OTDR式光纤传感器模型。通过串联一系列具有相同低反射率,宽带宽的光纤Bragg光栅,可实时准确地获得建筑物应变发生的大小和具体位置。理论计算结果表明在一根光纤上可复用上千个FBG来实现应变的超多点分布测量,从而进一步拓宽了测量范围。
Based on the technology of optical time division multiplexing and principle of optical time domain re- flectometer, a novel FBG-OTDR fiber-sensor model is put forward. Through a serial of fiber Bragg gratings with the same low-refiectivity, wide-bandwidth, the value and specific location of the real-time strain can be obtained accurately. Theoretical calculation results show that thousands of FBGs can be connected in a fiber to achieve the ultra-multi-point distribution measurement of strain, thereby the range of measurement is further broadened.
出处
《装备制造技术》
2017年第4期174-177,共4页
Equipment Manufacturing Technology
