一种基于单片机的电磁辐射检测系统

An electromagnetic radiation detection system based on single-chip microcomputer

介绍了一种基于单片机的电磁辐射检测系统。该系统能感应、检测笔记本电脑、电磁炉等常用电子电器产品使用过程中产生的电磁辐射信号,并显示其能量密度和场强值。当测量值超过国家标准值时,系统会发出报警声音。电磁辐射信号由系统感应天线接收,经检波、滤波和放大电路处理送模数转换芯片转换。转换后的值由单片机读入,经代入相关公式计算得出电磁辐射相关参数值。系统具有功耗少、成本低、测量便捷等特点。实验结果证明该系统可快速显示电磁辐射相关参数,对电磁环境评估有一定的参考和实用价值。

A kind of electromagnetic radiation detection system based on the single chip microcomputer is introduced. The system can react and detect the signal of the electromagnetic radiation which is produced by the commonly electrical and electronic products, such as the notebook computer, the electromagnetic oven etc and then display the value of the energy density and field intensity of the electromagnetic radiation. The system will give an alarm when the measured value exceeds the national standard value. The signals of the electromagnetic radiation are received by the induction antenna of the system, processed by the detecting, filtering and amplifying and converted by ADC. The values of the ADC conversion is read by single chip microcomputer, and then the values of the related parameters about the electromagnetic radiation are obtained. The system has characteristics such as low power consumption, low cost, convenient and rapid measurement etc. The experimental results show that the system can display the relevant parameters of the electromagnetic environment quickly, and has some references and practical values for the evaluation of the electromagnetic environment.