Shiqing Sun, Fenghong Chu. Temperature Compensation of Fiber Bragg Grating Current Sensor Based on Optimized Neural Network Algorithm[J]. Acta Optica Sinica, 2017, 37(10): 1006001
- Acta Optica Sinica
- Vol. 37, Issue 10, 1006001 (2017)
Fig. 1. Structure diagram of FBG current sensing system (inset Ⅰ is incident spectrum of optical source, inset Ⅱ is reflection spectrum of FBG, and inset Ⅲ is transmission spectrum of FBG)
Fig. 2. Model of three-layer BP neural network
Fig. 3. Flow chart of optimized neural network algorithm
Fig. 4. (a) Output of GA-BP network; (b) output of BP neural network
Fig. 5. Predictive mean square error of GA-BP network
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Table 1. FBG center wavelengths at different currents and temperaturesnm
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Table 2. Data of partial samples of GA-BP network
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