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
- Acta Optica Sinica
- Vol. 39, Issue 10, 1006002 (2019)
Fig. 1. Structural schematic of distortion FBG sensing network
Fig. 2. FBG performance degradation spectrum
Fig. 3. Flow chart of estimation of distribution algorithm
Fig. 4. Demodulation results of different types of distortion of FBG. (a) Light intensity attenuation; (b) spectral broadening; (c) spectral asymmetry
Fig. 5. Wavelength changes of two FBGs and RMS under different strains
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
Fig. 7. Actual and theoretical spectra of distorted FBG sensing network
Fig. 8. Demodulation error and demodulation time of FBG sensing networks with different numbers of FBG
Fig. 9. Quartile graph of RMS of EDA and four peak detection methods for 30 experiments
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Table 1. Average error of EDA and four peak detection methods for 30 experiments
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