环境电磁辐射测量方法研究

Research on electromagnetic wave measure method in environment

本文研究环境电磁辐射的测量方法,探讨电磁波最小测量系统的组成部分和决定测量结果的关键因素。采用电工器材作为显示部件具有稳定性高、结构简单的优点。研究认为采用1/4λ天线可以全方位收集无线电能量,监测环境电磁波污染,若配以高灵敏度电表可测定点上的全方位电磁波能量。长天线增益高、方向性好、垂直波瓣窄,不利于监测点计算总的辐射场强。采用与天线一体化的检波器件,直接输出直流信号;天线后插入选频网络,可切换到不同的谐振频率;降低天线Q值扩大频谱范围;用多通道接收天线阵列,可加宽监测频带,并减小测量工作人员位置和运动对结果的影响。

This paper researches measuring method of electromagnetic radiation.It is component of some parts in the mini-test system for the wave,and is key factor which determines the measuring results.It is suitable to adopt electro-technician material as vision component,for its simple structure and stability.It can gather nearly wireless energy without direction with antenna of a quarter wavelength,and it is adapt to environmental electromagnetic wave monitor.It can test electromagnetic energy at a point with high...