雷电低频磁场探测天线关键参数敏感性分析
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1贵州省气象服务中心 贵州 贵阳 550002,2南京信息工程大学 气象灾害预报预警与评估协同创新中心,江苏 南京 210044;3 贵州大气探测技术与保障中心 贵州 贵阳 550002

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TM863

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国家重点研发计划项目(2017YFC1501505)


Sensitivity Analysis on Key Parameters Of Lightning Low Frequency Magnetic Field Detection Antenna
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1 Guizhou Meteorological Service Center,Guiyang Guizhou ,550002,China;2 Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters,Nanjing University of Information Science & Technology, Nanjing Jiangsu 210044,China,3 Guizhou Meteorological Observation Technology and Support Centre, ,Guiyang Guizhou ,550002,China

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    摘要:

    为了探究设计参数对雷电低频磁场探测天线的影响,本文设计了雷电低频磁场探测天线,首先使用LCR-分析仪测试不同参数下天线的静态参数,而后基于亥姆霍兹线圈试验平台对天线的接收性能进行敏感性试验。首先分析了天线长度、丝包线股数和磁棒直径对天线静态参数(电阻、电容和电感)的影响。而后结合天线的静态参数,分析了不同参数对天线频响曲线、频响最值和带宽的影响。得出了增加天线长度虽可以增加带宽,但会减少天线的频响值,然而增加丝包线股数的情况则相反;增加磁棒直径能同时增加频响值和带宽,但使得天线的尺寸变大,因此天线长度、丝包线股数和磁棒直径的选择需要折中考虑。本文研究了各参数对雷电低频天线的影响,对于提高雷电的探测能力具有一定的参考价值意义。

    Abstract:

    In order to explore the influence of design parameters on the lightning low frequency magnetic field detection antenna, this paper designs a lightning low frequency magnetic field detection antenna. Firstly, based on the LCR analyzer, the influence of the antenna length, the number of the wire and the diameter of the magnetic rod on the resistance, capacitance and inductance of the antenna is analyzed. Secondly,a test platform was constructed using Helmholtz loop coils, and then the platform was used to perform sensitivity tests on the reception performance of ferrite antennas wound. And the effects of antenna length, the number of wires and the diameter of the magnetic rod on the receiving performance of the antenna were discussed. Finally, the research conclusions are as follows: Increasing antenna length can increase the antenna bandwidth, but it will reduce the frequency response value of the antenna. However, increasing the number of wrapped wires is the opposite. Increasing the magnetic rod diameter can increase the frequency response value and the bandwidth, but it will make the size of the antenna larger. So, the selection of the antenna length, the wires number and the magnetic rod diameter needs to be considered in a compromise. This paper analyzes the influence of various parameters on the lightning low-frequency antenna, which has a certain reference value for improving the lightning detection ability.

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蔡露进,李祥超,苏静文,罗俊才,潘岑,徐高静.雷电低频磁场探测天线关键参数敏感性分析[J].电子测量技术,2021,44(5):16-23

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  • 在线发布日期: 2024-10-24
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