Open AccessResearch on Automatic Cable Monitoring System Based on Vibration Fibber Optic Sensor Technology
Author(s) -
Yuan Feng,
Fan Bai,
Yong Zhu,
Zhuobin Cao,
Ge Zhang,
Fei Wu,
Pengcheng Guo
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1650/2/022010
Subject(s) - vibration , signal (programming language) , sensitivity (control systems) , fault (geology) , alarm , power (physics) , point (geometry) , acoustics , optical power , optical fiber , engineering , computer science , electronic engineering , electrical engineering , telecommunications , optics , physics , laser , geometry , mathematics , quantum mechanics , programming language , geology , seismology
To ensure the safety of power cables, temperature monitoring of power cables is critical. In view of the shortcomings of some optical fibre measurement products, a long-distance distributed optical fibre sensor is proposed, which has the advantages of high measurement sensitivity, fast response speed, low false alarm rate, large measurement length, and stable operation. The distributed optical fibre vibration sensing measurement equipment is used to monitor the vibration signals along the cable in real time, and the signal changes before and after the breakdown fault are visually displayed by the patio-temporal spectrum diagram, and the vibration signal of the breakdown point is analysed in time and frequency. The performance of the system was tested, and the experiment verified that the temperature measurement accuracy error range of the temperature measurement system is about ± 5 °C, and it has good stability. At the same time, the positioning accuracy is very high, and the fault point can be accurately located. This can avoid the occurrence of cable accidents.