Estimation of standards compliance uncertainty for radiated emission measurement in the pt program

2011 IEEE International Symposium on Electromagnetic Compatibility Pub Date : 2011-10-10 DOI:10.1109/ISEMC.2011.6038453

K. Osabe, T. Kato

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引用次数: 9

Abstract

VLAC, a Japanese laboratory accreditation body mainly in the field of EMC testing, has organized PT (Proficiency Testing) program of EMI measurement six times since 2005. The program has been performed with the type of inter-laboratory comparison by circulating an artifact. Based on the evaluation result of programs, the SCU (standards compliance uncertainty) of radiated emission measurement was estimated from the group interval of the collected data. Each test site carried out the measurement of radiated electromagnetic interference from the artifact under the conditions specified in the program including the use of the accompanying VHF LISN (Line Impedance Stabilization Network) to specify the common mode impedance of AC power supply of each participated test site. This paper discusses the calculation value of SCU which resulted in no greater than 6.9dB if EUT (Equipment under Test) has a simple operating condition and makes a simple test arrangement, and if the terminating condition of AC mains power supply is specified with using a stabilization device such as VHF-LISN.

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pt计划中辐射发射测量标准符合性不确定度的估计

vac是一家主要从事电磁兼容测试领域的日本实验室认证机构，自2005年以来已经组织了六次电磁干扰测量的PT (Proficiency testing)计划。该程序通过循环人工制品进行了实验室间比较。根据方案评价结果，从采集数据的组区间估计辐射发射测量的标准符合性不确定度。每个试验点在程序中规定的条件下对工件的辐射电磁干扰进行测量，包括使用附带的VHF LISN(线路阻抗稳定网络)来指定每个参与试验点的交流电源的共模阻抗。本文讨论了在EUT(待测设备)运行条件简单、试验布置简单、使用VHF-LISN等稳定化装置规定交流市电的终止条件时，SCU的计算值不大于6.9dB的问题。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2011 IEEE International Symposium on Electromagnetic Compatibility

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