[1]邓凌翔,封志明,陈道升,等.一种电子计量设备电磁兼容性分析与研究[J].南京师范大学学报(工程技术版),2011,11(01):005-8.
　Deng Lingxiang,Feng Zhiming,Chen Daosheng,et al.Electromagnetic Compatibility Analysis and Research of Electronic Measurement Equipment[J].Journal of Nanjing Normal University(Engineering and Technology),2011,11(01):005-8.
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一种电子计量设备电磁兼容性分析与研究
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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
11卷
期数:
2011年01期
页码:
005-8
栏目:
出版日期:
2011-03-09

文章信息/Info

Title:
Electromagnetic Compatibility Analysis and Research of Electronic Measurement Equipment
作者:
邓凌翔;封志明;陈道升;周雷;吴平宏;
江苏省计量科学研究院产品检验所，江苏南京210007
Author(s):
Deng Lingxiang; Feng Zhiming; Chen Daosheng; Zhou Lei; Wu Pinghong
Institute of Product Inspection,Jiangsu Metrology Institute of Science and Technology,Nanjing 210007,China
关键词:
电磁兼容; 电子计量设备; 线缆辐射; 辐射机理; 噪声抑制
Keywords:
electromagnetic compatibility; electronic measurement equipment; cable radiation; radiated mechanism;  noise suppression
分类号:
TN03
摘要:
针对电子计量设备的辐射电磁干扰问题,建立了相应的近场辐射模型和线缆辐射模型,分析了辐射噪声生成机理.据此,设计了相应的辐射噪声抑制措施,包括在单片机输出引脚并联高频滤波电容以抑制共模与差模噪声,将连接线缆改为双绞线,串联高频电感,并加载铁氧体磁环以抑制线缆辐射噪声.实验结果表明,此方法可有效降低辐射干扰噪声,并满足GB9254 Class B标准.
Abstract:
For the radiated EMI noise generated by electronic measurement equipment，the near-field and cable radiated models were proposed and analyzed in this paper． Therefore，radiated noise reduction method was designed． High-frequency capacitors in parallel with the PCB pins on the output of single chip microcomputer were employed to suppress CM and DM noise． While noise on cables was controlled by substituting cables into twist-pair and adding ferrite cores． The experimental results show that the suggested method can be utilized to suppress the radiated noise effectively，which can meet the standard GB 9254 Class B．

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 国家质检总局立项项目( 20070K121) ．通讯联系人: 邓凌翔，工程师，研究方向: 电力电子电磁兼容． E-mail: marmot23@163． Com
更新日期/Last Update: 2013-03-21