Xiao SUN, Qing-mei WANG, Zhen-wei LI, Jing-jing CHU. Abnormal diagnosis of fiber Bragg grating strain gauges in health monitoring system[J]. Optics and Precision Engineering, 2021, 29(11): 2581
- Optics and Precision Engineering
- Vol. 29, Issue 11, 2581 (2021)
Fig. 1. Original samples of measuring point example
Fig. 2. Samples after compression and filtering of measuring point example
Fig. 3. Frequency characteristics example of compressed signal
Fig. 4. Flow chart of loop iteration
Fig. 5. Simulation experiment results
Fig. 6. Result of sensor abnormal diagnosis
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Table 1. Failure types and characteristic change of sensors
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Table 2. Eigen values and abnormal indexes of simulated sensors
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Table 3. Eigen values and abnormal indexes of fault sensors
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