Jung J, Park N, Lee B
School of Electrical Engineering, Seoul National University, Kwanak-Gu Shinlim-Dong, Seoul 151-742, Korea.
Appl Opt. 2000 Mar 1;39(7):1118-20. doi: 10.1364/ao.39.001118.
We demonstrate a fiber-optic sensor scheme, capable of the simultaneous measurement of strain and temperature with a single fiber Bragg grating written in an erbium:ytterbium-doped fiber. This compact fiber-grating-based sensor scheme, believed to be novel, can be used for synchronous measurement of strain and temperature over ranges of 1100 microepsilon and 50-180 degrees C with rms errors of 55.8 microepsilon and 3 degrees C, respectively. The simple and low-cost sensor approach has a considerable potential, particularly for wide-range strain-sensing applications in which high resolution is not required.
我们展示了一种光纤传感器方案，它能够利用写入掺铒镱光纤中的单个光纤布拉格光栅同时测量应变和温度。这种基于光纤光栅的紧凑型传感器方案据信是新颖的，可用于在1100微应变和50 - 180摄氏度范围内同步测量应变和温度，均方根误差分别为55.8微应变和3摄氏度。这种简单且低成本的传感器方法具有相当大的潜力，特别是对于不需要高分辨率的大范围应变传感应用。
