Real-Time Interrogation of a Linearly Chirped Fiber Bragg Grating Sensor for Simultaneous Measurement of Strain and Temperature
Real-Time Interrogation of a Linearly Chirped Fiber Bragg Grating Sensor for Simultaneous Measurement of Strain and Temperature
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DOI：
10.1109/lpt.2011.2160624
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发表时间：
2011-06
影响因子：
2.6
通讯作者：
Weilin Liu;Wangzhe Li;J. Yao
中科院分区：
文献类型：
--
作者：
Weilin Liu;Wangzhe Li;J. Yao
提出并论证了一种基于啁啾微波脉冲压缩的高双折射线性啁啾光纤布拉格光栅(Hi-BiLCFBG)实时解调方法，用于同时测量应变和温度，提高了分辨率和信噪比。进行了理论分析，并通过实验进行了验证。实验结果表明，在48.6兆赫兹的解调速度下，该系统的分辨率优于±1.2C和±13.3MHZ。
We propose and demonstrate a novel approach to real-time interrogation of a high-birefringence linearly chirped fiber Bragg grating (Hi-Bi LCFBG) for simultaneous measurement of strain and temperature based on chirped microwave pulse compression with increased resolution and signal-to-noise ratio (SNR). A theoretical analysis is developed, which is validated by an experiment. The experimental results show that the proposed system can provide a resolution better than ± 1.2 °C and ± 13.3 με at an interrogation speed of 48.6 MHz.