Jiaming FAN, Minnan HUANG, Yishan WANG, Mingchao YONG, Lidong LÜ. Research on distributed optical fiber sensing technology for power pipe corridor breakdown monitoring[J]. Optics and Precision Engineering, 2024, 32(10): 1433
- Optics and Precision Engineering
- Vol. 32, Issue 10, 1433 (2024)
Fig. 1. Schematic diagram of Φ-OTDR system
Fig. 2. Φ-OTDR curve with vibration event loaded
Fig. 3. Differential curve
Fig. 4. Data process flow chart
Fig. 5. 3-D time domain curve distribution
Fig. 6. Optical time domain reflecting curves
Fig. 7. Attenuation coefficient compensation before and after curve comparison
Fig. 8. Difference curve after attenuation coefficient compensation
Fig. 9. Difference variance curve interval contrast diagram
Fig. 10. Results for vibration event location
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