电磁辐射符合性评估中的测试优化研究  

The Study of Test Optimization in Electromagnetic Field Radiation Compliance Assessment

作　　者：刘妍 马文化 侯晓晨 Liu Yan;Ma Wenhua;Hou Xiaochen

机构地区：[1]博鼎实华(北京)技术有限公司

出　　处：《安全与电磁兼容》2024年第5期81-85,95,共6页Safety & EMC

摘　　要：电磁辐射比吸收率(SAR)符合性评估是国内外市场准入的重要测试项目。为了准确测量被测设备最大的SAR值,需要在每一频段、每一被测设备位置、配置和工作模式下测试被测设备,在同一测试频段内还要考虑在不同频率下进行测试,测试时间较长。为了提升符合性评估中SAR测试效率,文章在行业标准规定的测试方案基础上,研究给出了优化测试方案,并通过原理分析和统计分析验证了优化测试方案不会给符合性评估引入误判风险,证明了优化测试方案的可行性。目前已将优化测试方案写入正在修订的行业标准中。Specific absorption rate(SAR)of electromagnetic radiation is an important test item in the conformity assessment of access to domestic and foreign markets.In order to accurately measure the maximum SAR value of the device under test(abbreviated as DUT),it is necessary to test the DUT at each used frequency band,position,configuration,and operating mode.Within the same testing frequency band,it is also necessary to consider different channels,which takes a long time to perform the testing.In order to improve the efficiency of SAR testing in compliance assessment,this article proposes an optimized testing plan based on the testing plan defined in the industry standard.Through principle analysis and statistical analysis,it is verified that the optimized testing plan will not cause misjudgment risk in compliance assessment,proving the feasibility of the optimized testing plan.At present,the optimized testing plan has been written into the industry standard,which is currently being revised.

关 键 词：比吸收率 电磁辐射 优化测试 

分 类 号：TN03[电子电信—物理电子学]