光学学报, 2017, 37 (8): 0806001, 网络出版: 2018-09-07
基于光频域反射计的光纤分布式传感中光谱分辨率提升技术 下载: 1048次
Spectral Resolution Improvement Technique for Optical Frequency-Domain Reflectometry-Based Optical Fiber Distributed Sensing
图 & 表
图 2. 采用傅里叶插值的OFDR互相关法流程图
Fig. 2. Flow chart of OFDR cross-correlation method with Fourier interpolation
图 3. (a)光纤温度传感实验装置图;(b)温度变化引起的光谱平移量
Fig. 3. (a) Experimental setup of fiber temperature sensing; (b) spectrum shift caused by temperature variation
图 4. (a)单模光纤粘贴在复合材料上的实物图;(b)应变实验示意图;(c)应变引起的光谱平移量
Fig. 4. (a) Picture of single mode fiber sticked on composite material; (b) diagram of strain experiment; (c) spectrum shift caused by strain
图 5. (a)温度传感实验中水温为56.8 ℃时的光谱平移量;(b)施加向下压力时的光谱平移量
Fig. 5. (a) Spectrum shift in temperature sensing experiment at 56.8 ℃; (b) spectrum shift under downward force
张超, 杨楠, 包艳, 郑普超, 张兵. 基于光频域反射计的光纤分布式传感中光谱分辨率提升技术[J]. 光学学报, 2017, 37(8): 0806001. Chao Zhang, Nan Yang, Yan Bao, Puchao Zheng, Bing Zhang. Spectral Resolution Improvement Technique for Optical Frequency-Domain Reflectometry-Based Optical Fiber Distributed Sensing[J]. Acta Optica Sinica, 2017, 37(8): 0806001.