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SAR测试过程 FCC  CE SAR测试方法 [复制链接]

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只看楼主 倒序阅读 使用道具 0 发表于: 2015-10-13

能力介绍:
支持手机、数据卡、平板电脑、对讲机等移动东西设备。测试频率范围300MHz-6GHz ,包括2G、3G、4G、WIFI等通讯制式。
设备介绍:
最新引进法国SATIMO SAR测试系统,此测试系统满足YD/T 1644、 EN 62209-1、FCC OET Bulletin 65等国内外标准。该SAR测试系统支持双人头桌选件,具有测试速度快、设备稳定度高等特点。

由于无线电设备(如手机)在世界范围内的广泛普及,越来越多的政府部门、电信法规机构等要求将电磁波辐射降低至一个合适的水平。
德普华检测为满足广大手机厂家迫切需求,最新引进了英国SATIMO公司手机电磁波能量吸收比率(SAR)测试系统。该测试系统,完全符合 IEEE/IEC/EN及美国ANSI的SAR标准要求,具有快速、准确、安全高效等特点,也是目前国际顶尖实验室采用最多、被广泛认可的SAR测试系 统。该套系统测试频率范围达到6GHz,可以针对GSM、CDMA、WLAN等多类型产品(不限于手机)进行认证测试。




随着信息技术和制造业的发展,大众在享受无线通信设备带来的各种便利之时,也日益关注无线通信终端的电磁辐射对人体健康的影响;
•各国政府对无线通信终端的这项指标一直十分重视;欧洲、美国、澳大利亚、新西兰、日本、韩国和台湾等都已经制定了本地区或本国的射频和微波辐射管理的相关指令、技术法规和强制性标准;
•含中国在内的许多国家已经要求移动用户终端厂商在产品包装和/或说明书中标示SAR相关技术指标和用户使用指南

比吸收率SAR(Specific Absorption Rate)
SAR的定义:在外电磁场的作用下,人体内将产生感应电磁场。由于人体各种器官均为有耗介质,因此体内电磁场将会产生电流,导致吸收和耗散电磁能量。生物剂量学中常用SAR来表征这一物理过程。

比吸收率SAR(Specific Absorption Rate)
SAR的意义为单位质量的人体组织所吸收或消耗的电磁功率,单位为W/kg。也可以表述为:给定密度(ρ)的体积微元(dV)内质量微元(dm)所吸收(消散)的能量微元(dW)对时间的微分值就是SAR,以下式表示:
SAR也可以用下面任意一个公式得到:
其中:SAR --比吸收率,单位为W/kg;
E --组织内电场强度的Rms值,单位为V/m;
σ--介质电导率,单位为S/m;
ρ;
--组织的比热容,单位是J/kg和K;
--组织细胞的起始温度时间导数,单位为K /s



FCC认证
•限值
ANSI/IEEE C95.1-1999 ; C95.3 :1.6W/Kg(1g Average )
FCC CFR 47 Part 2.1091, 2.1093
•测量方法
IEEE 1528-2003(头部方法);
OET 65(身体部分方法);
FCC KDB文件



     全身平均    局部特定部位    手,手腕,足,足踝等肢端位置
职业    0.4W/Kg    8.0W/Kg    20W/Kg
公众    0.08W/Kg    1.6W/Kg    4.0W/Kg
CE认证
•限值
EN 50360 -2001(头部限值):2.0W/Kg(10g Average )
EN 62311(身体限值):2.0W/Kg(10g Average )
•测试方法
EN 62209-1-2005(头部方法标准);
IEC 62209-2 -2010(身体方法标准)


全身平均    局部特定部位    手,手腕,足,足踝等肢端位置
职业    0.4W/Kg    10.0W/Kg    20W/Kg
公众    0.08W/Kg    2.0W/Kg    4.0W/Kg
描述:请输入描述
附件: SAR测试过程.pdf (1538 K) 下载次数:11
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