| 用宽带模拟量光纤传输系统测量脉冲电磁场 |
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| 引用本文： | 李炎新,石立华,高成,陈彬,周璧华. 用宽带模拟量光纤传输系统测量脉冲电磁场[J]. 高电压技术, 2006, 32(2): 34-36 |
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| 作者姓名： | 李炎新 石立华 高成 陈彬 周璧华 |
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| 作者单位： | 1. 解放军理工大学工程兵工程学院,南京,210007;东南大学,南京,210096
2. 解放军理工大学工程兵工程学院,南京,210007 |
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| 基金项目： | 国家自然科学基金重点资助项目(50237040)，国家自然科学基金面上项目(60471013) |
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| 摘 要： | 介绍了一种在强电磁场环境中用于传输脉冲信号的宽带模拟量光纤传输系统。通过采用场效应管做前级放大与光电器件的非线性预校正,且提高级间RC耦合时间常数。该系统动态范围大,非线性失真小,带宽达到1 Hz~150 MHz,调整输入电路并配合天线能测量脉冲磁场或脉冲电场。给出了脉冲电磁场测量的耦合电路和测试实例。测试结果表明该系统很适用于宽带脉冲电磁场的测量。
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| 关 键 词： | 光纤传输系统 脉冲测量 电磁干扰 电磁场 |
| 文章编号： | 1003-6520(2006)02-0034-03 |
| 收稿时间： | 2005-03-09 |
| 修稿时间： | 2005-03-09 |
Measurement of Pulse Electromagnetic Field Using Wide Band Fiber Optic Analogue Transmission System |
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| LI Yanxin,SHI Lihua,GAO Cheng,CHEN Bin,ZHOU Bihua. Measurement of Pulse Electromagnetic Field Using Wide Band Fiber Optic Analogue Transmission System[J]. High Voltage Engineering, 2006, 32(2): 34-36 |
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| Authors: | LI Yanxin SHI Lihua GAO Cheng CHEN Bin ZHOU Bihua |
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| Affiliation: | 1. Engineering Institute of Engineering Corps, PI.A University of Science and Technology, Nanjing 210007, China; 2. Research Center of Information Security, Southeast University, Nanjing 210096, China |
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| Abstract: | A fiber optic analogue transmission system for pulse signal in strong electromagnetic is introduced.By correcting the photoelectric cell's nonlinearity in advance,and by increasing the RC coupling time constant the system has wide dynamic range,little nonlinear distortion and wide pass band from 1 Hz to 150 MHz.By adjusting the input circuit along with an antenna the system can be used to measure pulse magnetic field or electric field.Design methods for the pulse electromagnetic field coupling circuits and measurement examples are presented.The examples show that the system is suitable for measuring wide band pulse electromagnetic field. |
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| Keywords: | fiber optic transmission system pulse measurement electromagnetic interference electromagnetic field |
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