Shiyi LI, Hao LI, Wenbin JI, Feng WANG, Xiao ZHOU, Xinyu YUAN, Yixin ZHANG, Xuping ZHANG, Haitao LI, Jingzeng LI, Guanzhong BO. Optical Fiber Sensing Structure for Slope Monitoring Based on Brillouin Optical Time Domain Reflectometer[J]. Acta Photonica Sinica, 2021, 50(9): 0906005
- Acta Photonica Sinica
- Vol. 50, Issue 9, 0906005 (2021)
Fig. 1. Sensing structure based on coherent self-heterodyne BOTDR
Fig. 2. Optical fiber sensing structure based on BOTDR
Fig. 3. The setup of the calibration experiment
Fig. 4. The measured strain results of the OFSS and different outside optical cable
Fig. 5. The displacements for different measurement time obtained
Fig. 6. The situ monitoring experiment
Fig. 7. Strain results of OFSS and optical cable by different laying styles
Fig. 8. The displacements in different experiment
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Table 1. The landslide area of each experiment
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