Yan Wang, Dongsheng Cheng, Chao Jiang, Ziyang Ge, Ping Jin. Identification of characteristics of slip signal based on fiber Bragg grating flexible sensor[J]. Infrared and Laser Engineering, 2023, 52(3): 20220587
- Infrared and Laser Engineering
- Vol. 52, Issue 3, 20220587 (2023)
Fig. 1. Schematic diagram of FBG sensor slip
Fig. 2. FBG array distribution diagram
Fig. 3. Distributed FBG sensing experimental system
Fig. 4. Slip signal acquisition
Fig. 5. Comparison of denoising curves
Fig. 6. Characteristic value division of slip signal
Fig. 7. Comparison of wavelength curves corresponding to velocity and load changes
Fig. 8. Characteristic distribution of sample wavelength and time value
Fig. 9. Structural model of random forest
Fig. 10. Influence of decision tree number on MSE coefficient
Fig. 11. Structural model of neural network
Fig. 12. Effect of neuron number on prediction performance
Fig. 13. Results of velocity and load predictions by RF and BP regression
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Table 1. Performance evaluation of denoising results
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Table 2. Influence of activation functions on the system
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Table 3. Performance evaluation of the two models
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