【作者】 肖保明；

【导师】 王泽忠；

【作者基本信息】 华北电力大学（北京） ， 电力系统及其自动化， 2004， 硕士

【摘要】 本文针对瞬态电磁干扰的防护问题，设计制作了一套瞬态弱磁场测量系统。该系统包括磁场测量探头、宽带信号放大器、信号传输电缆和补偿器等。文中分析了近场电磁场分布的特点；研究了磁场探头的测量原理；根据实际测量需要制作了磁场探头、设计了信号放大单元和用于补偿电缆信号衰减的补偿器；最后利用实验室的电磁脉冲模拟器对所设计的磁场测量系统进行了一系列实验，分析了系统的测量误差。结果表明该磁场测量系统能够用于瞬态弱磁场的测量。更多还原

【Abstract】 To research the defence problem of transient Electromagnetic Interference, a relatively small transient magnetic fields measurement system has been developed. Which include magnetic-field probe, wide-band amplifier, transmission cable and its compensator. This paper has analyzed the characteristics of near-field Electromagnetic Fields and the measurement principle of magnetic-field sensor, and designed probe , amplifier unit and compensator according to measurement needs. Finally, based on the Electromagnetic Pulse simulator in the lab, a set of experiments have been done on the designed magnetic fields measurement system and analyzed the error of the measurement system. All experimental results have indicated that the magnetic measurement system could be used for measuring relatively small transient magnetic fields.更多还原