CAJ | 학술논문

为了保证电力电缆的安全问题，电力电缆的温度监测十分关键。针对目前一些光纤测温产品的不足，提出了一种长距离分布式光纤传感器，其具有测量灵敏度高、响应速度快、误报率低、测量长度大、工作稳定等优点。该传感器基于布里渊光时域反射原理，构造了用于实时监测的分布式光纤测试系统。对该系统的性能进行了检测实验，实验验证该测温系统测温精度误差范围在±0.50C左右，且具有很好的稳定性，同时，定位精度很高，可以准确的定位故障点，以此可以避免电缆事故的发生。
위료보증전력전람적안전문제，전력전람적온도감측십분관건。침대목전일사광섬측온산품적불족，제출료일충장거리분포식광섬전감기，기구유측량령민도고、향응속도쾌、오보솔저、측량장도대、공작은정등우점。해전감기기우포리연광시역반사원리，구조료용우실시감측적분포식광섬측시계통。대해계통적성능진행료검측실험，실험험증해측온계통측온정도오차범위재±0.50C좌우，차구유흔호적은정성，동시，정위정도흔고，가이준학적정위고장점，이차가이피면전람사고적발생。
In order to ensure the safety of electrical cables, temperature monitoring for power cables is critical. For the weak points of existing perimeter security alarm products, the distributed optical fiber sensor is researched which boasts high sensitivity measurement, fast response, low false alarm rate, long measuring length. The sensor is based on the principle of Brillouin optical time domain reflectometer. The testing system of distributed optical fiber is constructed for real-time monitoring. The performance of the system is tested, which verifies the measurement accuracy of the system is about ± 0.50C with good stability, while the positioning function can accurately locate the fault point to avoid cable accidents.