手机电磁辐射研究  

Study of mobile phone electromagnetic radiation

作　　者：羊勇 杨嘉[2] 杨玉琦[3] 

机构地区：[1]军事交通学院学员旅十二队,天津300161 [2]军事交通学院基础实验中心,天津300161 [3]军事交通学院训练部,天津300161

出　　处：《大学物理》2013年第1期42-45,56,共5页College Physics

摘　　要：根据电磁学理论和比吸收率SAR测量模型,简化手机电磁辐射测量方法,用手机近场辐射的磁感应强度值来衡量手机电磁辐射水平,通过对大量手机在不同使用状态下的磁感应强度值进行实验测量和数值分析,得到手机电磁辐射的一些规律,发现接通瞬间的手机辐射要比正常通话时的辐射强数倍,品牌手机的辐射相对要弱,移动时接打电话的手机辐射比静止时的强.根据测量结果,提出了减少手机电磁辐射对人体影响的对策和建议.According to the electromagnetics theory and the measurement model of speclfic absorption rate（SAR） , we simplify the method of measurement for mobile phone electromagnetic radiation. The level of mobile phone electromagnetic radiation is measured by magnetic flux density of near-field thermal radiation of mobile phone. With experimental measurements and numerical analysis of magnetic flux densityin the different mobile phone use state, we summarize the general rules of mobile phone electromagnetic radiation. It is found that mobile phone electromagnetic radiation when phone is switched is few times to normal call, brand mobile phone radiation is relatively weak, and the mobile phone on moving has more electromagnetic radiation than phone at a standstill. Put forward countermeasures and suggestions to reduce the influence of mobile phone electromagnetic radiation on the human.

关 键 词：手机电磁辐射 比吸收率SAR 磁感应强度 

分 类 号：O441[理学—电磁学]