Infrared and Laser Engineering, Volume. 54, Issue 2, 20240495(2025)
Real-time optical fiber monitoring system for wind-induced vibration of high-voltage transmission towers
Fig. 3. (a) Reflective spectrum of TCF-TFBG sensor with and without fiber bending; (b) Output of PD1 (core mode-red trace) and PD2 (cladding modes-blue trace) under 22 Hz vibration; (c) Measured response of detected cladding power versus applied acceleration (blue dots) and linear fit (red line); (d) Measured temperature response of core mode (black dots) and cladding mode (red dots)
Fig. 4. Photograph of the fiber-optic vibration/acceleration sensing system
Fig. 5. Location of field trial measurement of 220 kV transmission tower
Fig. 6. (a) Install sensor on the tested transmission tower using magnet; (b) Installation position of packaged fiber-optic sensors; (c) Nameplate of the transmission tower; (d)-(e) Field staff in action
Fig. 7. Test results at different wind speeds. (a) Real-time output of the optical fiber sensor; (b) Frequency output after Fourier transformation
Fig. 8. Response curves of acceleration and frequency of optical fiber vibration sensor at different wind speeds
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Xiaoyu LUO, Yinggang NAN, Yongchun LIANG, Wenping XIE, Li MIN, Tuan GUO, Ming NIE. Real-time optical fiber monitoring system for wind-induced vibration of high-voltage transmission towers[J]. Infrared and Laser Engineering, 2025, 54(2): 20240495
Category: 光通信与光传感
Received: Nov. 25, 2024
Accepted: --
Published Online: Mar. 14, 2025
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