Development of nano-strain-resolution fiber optic quasi-static strain sensors for geophysical applications
Development of nano-strain-resolution fiber optic quasi-static strain sensors for geophysical applications
复制标题
DOI：
10.1117/12.974965
复制
发表时间：
2012-10
期刊：
影响因子：
--
通讯作者：
Zuyuan He;Qingwen Liu;T. Tokunaga
中科院分区：
文献类型：
--
作者：
Zuyuan He;Qingwen Liu;T. Tokunaga
本文报道了一种基于光纤光栅和光纤法布里-珀罗干涉仪的纳米级应变分辨率的光纤静态应变传感器，用于地球物理研究领域的地壳形变监测。这些传感器具有相同的静态应变测量基准，并且通过询问方法保证分辨率和动态范围。利用光纤光栅传感器，进行了具有纳米应变分辨率的海潮引起的地壳形变监测的现场演示。还介绍了高性能光纤法布里-珀罗干涉仪传感器的研制。
We report a series of nano-strain resolution fiber-optic static-strain sensors by use of fiber Bragg gratings and fiber Fabry-Perot interferometers, for the monitoring the crustal deformation in geophysics research field. These sensors have identical references for static strain measurement, and the resolution and dynamic range are guaranteed by the interrogation methods. With the fiber Bragg grating sensor, field demonstrations on the monitoring of crustal deformation induced by oceanic tide have been carried out with nano-strain resolution. Development of high performance fiber Fabry-Perot interferometer sensor is also introduced.