基于光纤反射腔的高灵敏电流传感器方案

陈硕; 刘占元; 刘鹏飞; 陈开鑫

光学与光电技术, 2014, 12 (1): 19, 网络出版: 2014-05-04

基于光纤反射腔的高灵敏电流传感器方案

A Scenario of High Sensitivity Current Sensor Based on Optical Fiber Reflection Cavity

论文大纲

陈硕 ^1,*刘占元 ¹刘鹏飞 ²陈开鑫 ²

作者单位

¹ 国网智能电网研究院, 北京 100192

² 电子科技大学通信与信息工程学院, 四川成都 611731

电流传感器法拉第效应 Y分支光波导法拉第旋镜光纤传感 current sensor faraday effect Y-branch optical waveguide faraday rotation mirror optical fiber sense

摘要

提出了一种基于平面Y分支波导与法拉第旋镜的高灵敏度光纤电流传感器结构方案。利用两个法拉第旋镜与平面Y分支波导构成一个光纤反射腔,通过光在腔中的多次反射来增加待测电流导致的传感光纤中的法拉第相移,从而实现对微弱电流的测量。该结构方案中首次采用了平面Y分支光波导,从而可降低光路系统损耗,增加灵敏度,为微弱电流测量的工程化提供了一种可行的方法。

Abstract

In this paper, a configuration scenario of high sensitivity optical fiber current sensor based upon planar Y-branch optical waveguide and Faraday rotation mirror is proposed. An optical fiber reflection cavity is formed by utilizing a planar Y-branch optical waveguide and two Faraday rotation mirrors so that the optical signals which travel along the fiber sensing coil can experience multiple reflections. As a result, the Faraday phase shift which is induced in the fiber sensing coil by the current is increased. Therefore, a measurement for weak current can be realized. A planar Y-branch optical waveguide are used firstly in this configuration, which can decrease the optical losses and increase sensitivity of the system, and at last, provides a feasible measuring method for the weak current.

参考文献

[1] Silva R M, Martins H, et al. Optical current sensor for high power system: A review［J］. Applied Sciences, 2012, (2): 602-628.

[2] 焦斌亮, 郑绳楦, 单伟. 一种大动态范围的磁光电流传感器方案［J］. 应用光学, 2004, 25(5): 40-42.

[3] 王政平, 王玥坤, 孙帅. 全光纤电子电流互感技术探讨［J］. 光学与光电技术, 2012, 10(2): 15-20.

[4] Sun L, Jiang S, Zuegel J D, et al. Effective verdet constant in terbium-doped-core［J］. Optics Letters, 2009, 34: 1699-1701.

[5] Sun L, Jiang S, Marciante J R. Compact all-fiber optical Faraday components using 65-wt%-terbium-doped fiber with a record Verdet constant of -32 rad/(Tm)［J］. Optics Express, 2010, 18: 12191-12196.

[6] Silivio Z, Robert C W, Herbert H C I. Current sensing techniques: A review［J］. IEEE Sensors Journal, 2009, 9(4): 354-375.

[7] H Y Zhang, Y K Dong, J lesson, et al. Bao. High sensitivity optical fiber current sensor based on polarization diversity and a Faraday rotation mirror cavity［J］. Applied Optics, 2011, 50(6): 924-929.

[8] Drexler P, Fiala P. Utilization of Faraday mirror in fiber optic current sensors［J］. Radioengineering, 2008, 17(4): 101-107.

[9] F Liu, Q Ye, J X, et al. Study of fiber-optic current sensing based on degree of polarization measurement［J］. Chinese Optics Letters, 2007, 5(5): 267-269.

陈硕, 刘占元, 刘鹏飞, 陈开鑫. 基于光纤反射腔的高灵敏电流传感器方案[J]. 光学与光电技术, 2014, 12(1): 19. CHEN Shuo, LIU Zhan-yuan, LIU Peng-fei, CHEN Kai-xin. A Scenario of High Sensitivity Current Sensor Based on Optical Fiber Reflection Cavity[J]. OPTICS & OPTOELECTRONIC TECHNOLOGY, 2014, 12(1): 19.

基于光纤反射腔的高灵敏电流传感器方案

关于本站 Cookie 的使用提示

全站搜索

基于光纤反射腔的高灵敏电流传感器方案

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索