| 基于DFB激光器解调技术的光学电流互感器 |
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| 引用本文： | 刘杰,赵洪,王鹏,蒋亮,黄超.基于DFB激光器解调技术的光学电流互感器[J].光电子．激光,2011(12):1789-1792. |
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| 作者姓名： | 刘杰 赵洪 王鹏 蒋亮 黄超 |
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| 作者单位： | 哈尔滨理工大学电气与电子工程学院;哈尔滨理工大学工程电介质及应用技术教育部重点实验室;哈尔滨理工大学电气与电子工程学院;哈尔滨理工大学工程电介质及应用技术教育部重点实验室;哈尔滨理工大学工程电介质及应用技术教育部重点实验室 |
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| 基金项目： | 黑龙江省自然科学基金重点资助项目(ZD200815);黑龙江省教育厅科技资助项目(12511118);哈尔滨理工大学青年科学研究基金资助项目(2009YF002) |
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| 摘 要： | 针对交流电流的测量，提出了一种基于分布式反馈（DFH）激光器解调技术的光学电流互感器（0CT）。OCT的传感部分运用光纤Bragg光栅（FBG）和超磁致伸缩材料（GIⅢ①作为传感器探头，同时应用DFB激光器对FBG进行解凋，实现交流电流的测量。对于这种新型的OCT进行了理论分析和实验研究，实验测得系统传感灵敏度可达到1...
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| 关 键 词： | 光学电流互感器(OCT) 光纤Bragg光栅(FBG) 分布式反馈(DFB)激光器 |
An optical current transformer based on DFB laser demodulation |
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| LIU Jie,ZHAO Hong,WANG Peng,JIANG Liang and Huang Chao.An optical current transformer based on DFB laser demodulation[J].Journal of Optoelectronics·laser,2011(12):1789-1792. |
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| Authors: | LIU Jie ZHAO Hong WANG Peng JIANG Liang and Huang Chao |
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| Affiliation: | College of Electrical and Electronic Engineering,Harbin University of Science and Technology,Harbin 150080,China;Key Laboratory of Engineering Dielectric and its Application,Ministry of Education,Harbin University of Science and Technology,Harbin 150080,China);College of Electrical and Electronic Engineering,Harbin University of Science and Technology,Harbin 150080,China;Key Laboratory of Engineering Dielectric and its Application,Ministry of Education,Harbin University of Science and Technology,Harbin 150080,China);Key Laboratory of Engineering Dielectric and its Application,Ministry of Education,Harbin University of Science and Technology,Harbin 150080,China) |
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| Abstract: | For the measurement of AC current,an optical current transformer(OCT) based on distributed feedback(DFB) demodulation is proposed.The fiber Bragg grating(FBG) and the giant magnetostrictive material(GMM) are used as the sensor probe of the current transformer.By using the DFB laser,we realize the demodulation of fiber grating and the measurement of alternative current.By theoretical analysis and experiment,the sensing sensitivity of the system can reach 11.822×10-3 nm/A with 0.63% full scale accuracy,and the linearity-fitted degree is 0.996 2.So it is suitable for detection of small current with high-precision. |
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| Keywords: | optical current transformer(OCT) fiber Bragg grating(FBG) distributed feedback(DFB) laser |
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