双孔光子晶体光纤光学电压传感方案研究  

Optical Voltage Transducer Based on Two-Hole Photonic Crystal Fiber

作　　者：芦鑫[1] 毕卫红[1] 麻硕[1] 刘丰[1] 

机构地区：[1]燕山大学信息科学与工程学院,河北秦皇岛066004

出　　处：《中国激光》2011年第11期157-161,共5页Chinese Journal of Lasers

基　　金：国家自然科学基金(60907033);河北省自然科学基金(E2009000373);秦皇岛市科学技术研究与发展计划(201001A053)资助课题

摘　　要：设计了一种基于双空气孔光子晶体光纤(PCF)模间干涉的光学电压传感的实验方案。用缠绕了双孔光子晶体光纤的石英晶体作为电压传感头,在被测高压电场的作用下,双孔光子晶体光纤的长度因石英晶体的逆压电效应形变而受到调制,进而可以改变模间干涉输出两个边瓣的光强分布,对两个干涉输出边瓣进行探测实现对高电压的测量。在低压端用一个缠绕了双孔光子晶体光纤的压电陶瓷(PZT)来调整模间初始相位差,使之处于正交状态。实验结果表明,在实验室条件下能获得0.5%的测量精度,具有很好的线性度。An optical voltage transducer for the electric power system based on modular interference in dual-mode two-hole photonic crystal fiber （PCF） is designed. A quartz crystal cylinder wrapped with two-hole photonic crystal fiber is used as the voltage sensor head. The intensity of the two interference output lobes of the two-hole photonic crystal fiber is modulated with the converse piezoelectric effect of quartz crystal. In low voltage part, a piezoelectric ceramics （PZT） which wrapped with a piece of double core PCF is used for adjusting the static phase difference at orthogonal status. The experimental results show that the measurement precision is 0. 5% by rated voltage in laboratory conditions.

关 键 词：测量 光学电压传感器 模间干涉 逆压电效应 石英晶体 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置]