全光纤电流传感器中电流传感光纤的抗干扰研究

发布时间：2018-02-04 22:20

本文关键词： 光纤光学传感器电流传感光纤抗干扰磁光效应偏振转换　出处：《光学学报》2017年10期 　论文类型：期刊论文

【摘要】：针对带变螺距段传感光纤的全光纤电流传感器,提出两种抗干扰结构:基本结构,即将变螺距段与传感光纤一起成束并将反射镜置于变螺距段中点位置;"8"字型结构,将变螺距段绕成"8"字型。分析两种结构的抗干扰原理,实验检验电流导体在传感光纤环内、外不同位置时传感器读数的差异。实验结果表明,两种结构均可抗0.5m以上的1000A级别的外界电流干扰,但前者仅适用于电流导体与传感光纤环相对位置固定不变的应用场合,后者可适用于诸多电流导体与传感光纤环相对位置不固定的应用场合。在不同的应用场合下两种结构的抗干扰性能均具有实用性。
[Abstract]:For all fiber optic current sensor with variable pitch segment, two anti-interference structures are proposed: the basic structure is that the variable pitch section is bunched with the sensing fiber and the mirror is placed at the middle point of the variable pitch section; The "8" structure is formed by winding the variable pitch section into the "8" shape. The anti-interference principle of the two structures is analyzed, and the current conductor in the sensing fiber ring is tested experimentally. The experimental results show that the two structures can resist the external current interference of 1000A level above 0.5 m. However, the former is only suitable for applications where the relative position of the current conductor and the sensing fiber ring is fixed. The latter can be used in many applications where the relative position of the current conductor and the sensing fiber ring is not fixed, and the anti-interference performance of the two structures is practical in different applications.
【作者单位】：上海交通大学电子工程系;上海交通大学区域光纤通信网与新型光通信系统国家重点实验室;
【分类号】：TP212
【正文快照】： 全光纤电流传感器(FOCS)是智能电网建设中重要的核心设备,具有传统式互感器无法比拟的优势,能真实再现电网的实时电流信息,绿色环保,无爆炸等安全隐患。作为全新一代的电子式电流传感器,它的出现为特高压输电及电力自动化奠定了坚实基础,并将积极推动电力网的稳定实时控制技术

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