Jian Chen, Yongxing Guo, Fangdong Zhu, Li Xiong. Fiber Bragg Grating Inclination Sensor for Transmission Tower[J]. Laser & Optoelectronics Progress, 2019, 56(8): 080602
- Laser & Optoelectronics Progress
- Vol. 56, Issue 8, 080602 (2019)
Fig. 1. Structural diagram of FBG inclination sensor
Fig. 2. Force diagram of sensor under inclination
Fig. 3. Sensor fabrication. (a) Carbon fiber beam with embedded fiber gratings; (b) photo of sensor after packaging
Fig. 4. Schematic of testing device for FBG inclination sensor
Fig. 5. Experimental results. (a) Real-time data of wavelength shifts of fiber grating; (b) output data of wavelength shift difference
Fig. 6. Test data and fitting. (a) Six wavelength shift difference curves during uploading and downloading; (b) median fitting result
Fig. 7. Time-history curve of creep performance test
Fig. 8. Time-history curve of temperature test
Fig. 9. Precision test results. (a) Comparison diagram for precision test; (b) absolute difference for precision test
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