虚拟仪器技术下光纤传感器故障损伤定位系统设计

Design of fault damage localization system for optical fiber sensor based on virtual instrument technology

为提升光纤传感器故障损伤定位效果,设计了一种基于虚拟仪器的光纤传感器故障损伤定位系统。设计光纤传感器故障损伤汇聚节点的模块框架与故障损伤信号的硬件处理流程,再对故障损伤数据信息进行提取解析,再构建光纤传感器故障损伤数据统计量,设计光纤传感器故障损伤定位算法,实现光纤传感器故障损伤的定位。实验结果表明,设计系统可以减小故障损伤距离定位误差和电阻定位误差,两者最高均为0.1,故障点定位精度更高,始终保持在0.9以上,且能够在2 s内就完成故障点定位。

This paper designs a da fiber optic sensor fault damage localization system based on virtual instrumentation.The module framework of the optical fiber sensor fault damage sink node and the hardware processing flow of the fault damage signal are designed,the fault damage data information is extracted and analyzed.The damage data statistics are constructed,and the damage location algorithm is designed to locate the fault damage.The experimental results show that the designed system can reduce the distance location error and resistance location error,both of which are up to 0.1.The fault point location accuracy is higher,always maintained above 0.9,and can complete the fault point location within 2 s.