Qian Muyun, Yu Youlong. Tactile Sensing of Fiber Bragg Grating Based on Back Propagation Neural Network[J]. Chinese Journal of Lasers, 2017, 44(8): 806001
- Chinese Journal of Lasers
- Vol. 44, Issue 8, 806001 (2017)
Fig. 1. Distribution diagram of FBG sensing elements. (a) Three-dimensional distribution; (b) sectional view
Fig. 2. Displacement contours of x-axis simulated by ANSYS
Fig. 3. Displacement diagram of x-axis of packaging material when F=5.2 N
Fig. 4. Contours of temperature field distribution
Fig. 5. Temperature sensing curves of FBG under different initial temperatures
Fig. 6. Pressure response curves of FBG obtained by experiment and simulation
Fig. 7. Tactile response curves of FBG
Fig. 8. Center wavelength drift of FBG at different load positions
Fig. 9. Center wavelength drift of FBG at different temperatures and pressures
Fig. 10. Relationship between number of hidden nodes and performance of BP neural network training
Fig. 11. Error performance curves of BP neural network training process
Fig. 12. Absolute error of output pressure of BP neural network. (a) FBG1; (b) FBG2
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Table 1. Embedded parameter optimization results of FBG sensor
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