光学学报, 2019, 39 (10): 1006002, 网络出版: 2019-10-09
畸变光谱下光纤布拉格光栅传感网络波长检测优化方法 
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Wavelength Detection Optimization of Fiber Bragg Grating Sensing Networks Based on Distortion Spectrum
图 & 表
图 4. FBG不同类型畸变的解调结果。(a)光强衰减;(b)展宽变宽;(c)波形不对称
Fig. 4. Demodulation results of different types of distortion of FBG. (a) Light intensity attenuation; (b) spectral broadening; (c) spectral asymmetry
图 5. 应力变化条件下两个FBG波长变化和RMS
Fig. 5. Wavelength changes of two FBGs and RMS under different strains
图 6. 随机畸变FBG传感网络的畸变参数计算值和波长误差值。(a)衰减因子值;(b)展宽系数值;(c)波形不对称参数值;(d) RMS
Fig. 6. Distortion parameters and RMS of FBG sensing network under random distortion. (a) Attenuation factor; (b) spectral broadening factor; (c) asymmetry factor; (d) RMS
图 7. 畸变FBG传感网络的实际光谱和理论光谱
Fig. 7. Actual and theoretical spectra of distorted FBG sensing network
图 8. 不同数量FBG传感网络的解调误差和解调时间
Fig. 8. Demodulation error and demodulation time of FBG sensing networks with different numbers of FBG
表 130组实验的EDA和四种传统峰值检测方法的平均误差
Table1. Average error of EDA and four peak detection methods for 30 experiments
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江灏, 周清旭, 陈静, 缪希仁. 畸变光谱下光纤布拉格光栅传感网络波长检测优化方法[J]. 光学学报, 2019, 39(10): 1006002. Hao Jiang, Qingxu Zhou, Jing Chen, Xiren Miao. Wavelength Detection Optimization of Fiber Bragg Grating Sensing Networks Based on Distortion Spectrum[J]. Acta Optica Sinica, 2019, 39(10): 1006002.
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