Acta Photonica Sinica, Volume. 53, Issue 4, 0406005(2024)
Small Torque Detection of Bolt Connection Based on Suspended-FBG
Figures & Tables(9)
Fig. 3. Setup for vibration-acoustic waveguide sensor basing on suspended-FBG
Fig. 7. Confusion matrix for SVM classification results based on Gaussian kernel function
Table 1. Cross-orrelation coefficients between IMF components and the original signal
View tableView in ArticleTable 1. Cross-orrelation coefficients between IMF components and the original signal
Signal IMF1 IMF2 IMF3 IMF4 IMF5 Cross-correlation coefficient 0.181 6 0.960 7 0.315 2 0.044 9 0.008 0 Signal IMF6 IMF7 IMF8 IMF9 Superposition of IMF2 and IMF3 Cross-correlation coefficient 0.001 0 0.003 9 0.000 4 0.003 9 0.986 6
Table 2. SVM diagnostic results for each kernel function
View tableView in ArticleTable 2. SVM diagnostic results for each kernel function
Diagnostic signal Average correctness （Polynomial kernel） Average correctness （Gaussian kernel） Average correctness （Linear kernel） IMF2 92.4% 92.2% 92.2% IMF3 72.2% 70.4% 69.2% Superposition of IMF2 and IMF3 96.2% 97.2% 96.4%
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Chunfang RAO, Peng CHEN, Youde HU, Xuefeng ZHAN, Ziwei JIANG, Yuexiang WANG, Wenxin YU. Small Torque Detection of Bolt Connection Based on Suspended-FBG[J]. Acta Photonica Sinica, 2024, 53(4): 0406005
Paper Information
Category: Fiber Optics and Optical Communications
Received: Oct. 30, 2023
Accepted: Jan. 12, 2024
Published Online: May. 15, 2024
The Author Email: RAO Chunfang (rcf0322@jxnu.edu.cn)
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