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辐射式核电磁脉冲模拟器场均匀区域测试方法
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摘要
基于现有标准中没有专门用于测试辐射式核电磁模拟器场均匀区域方法的现状,通过搭建辐射式核电磁脉冲模拟器试验系统并进行试验测试和数据分析,明确了辐射式模拟器的场均匀区域应在近场区内以脉冲峰值为标准进行定义,在均匀区域内只考虑脉冲峰值的变化;脉冲峰值随距离呈线性变化;在距离平面上的场分布具有一定规律,因此提出通过测试距天线口径面3m位置起3个点的场值来获得场均匀区域的方法。使用该方法测得辐射式核电磁脉冲模拟器场均匀区域为4.5m(长)×6m(宽)×6m(高),为下一步开展电磁脉冲效应试验提供了前提条件。
Based on the fact that there is no special way to measure the uniform field area of the radiation type of nuclear electromagnetic pulse(NEMP) simulator in existing standards, this paper built a test system of the radiation type of NEMP simulator and implemented the experiments. According to the experiment results, it was confirmed that the uniform field area for the radiation type of simulator should be defined only by the peak value of pulse in the near field zone. The peak value of pulse varied linearly with the distance from the aperture plane of simulator antenna. The radiated field distribution on the distance plane had certain regularity. So the measurement method of the uniform field area was proposed through the way testing three points 3m far away from the aperture plane of simulator antenna. With this method, the uniform field area of the radiation type of simulator built previously was given as 4.5m×6m×6m, which would give support to the electromagnetic pulse effect experiment.
引文
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