罗氏线圈采集器的电磁抗扰度的研究
发布时间：2018-10-31 11:05
【摘要】：为解决印制电路板(PCB)在工作中出现的电磁兼容(EMC)问题,对采集单元PCB及屏蔽盒的EMC性能进行研究,将PCB根据功能实现分割,加粗电源线和地线的宽度,选用贴片元件,减小相邻传输线间的平行长度;同时对屏蔽盒整体采用插接结构,在可拆卸面板的机箱内设计并布置防静电金属弹片,可增加面板与机箱其他位置的电导率、减少静电电荷积累,以提高设备抗扰度、减少辐射骚扰。最后基于HFSS软件,对PCB和屏蔽盒进行建模仿真,通过结果分析可得,优化后的PCB电磁场分布更均匀,屏蔽盒的屏蔽效果显著,EMC特性得到很大程度的提高,证明对PCB和屏蔽盒的设计满足测试要求。
[Abstract]:In order to solve the problem of electromagnetic compatibility (EMC) in the work of printed circuit board (PCB), the performance of the acquisition unit PCB and the EMC of the shield box is studied. The PCB is divided according to the function, the width of the power cord and ground wire is thickened, and the patch element is selected. Reducing the parallel length between adjacent transmission lines; At the same time, the shielding box is designed and arranged with antistatic metal shrapnel in the chassis of the removable panel, which can increase the conductivity of the panel and other locations of the case, reduce the accumulation of electrostatic charge, and improve the immunity of the equipment. Reduce radiation harassment. Finally, based on HFSS software, the modeling and simulation of PCB and shield box are carried out. The results show that the optimized PCB electromagnetic field distribution is more uniform, the shielding effect of the shield box is remarkable, and the EMC characteristics are greatly improved. It is proved that the design of PCB and shield box meets the test requirements.
【作者单位】： 大连理工大学电气工程学院;
【基金】：国家自然科学基金(51277020) 中央高校基本科研业务专向基金(DUT15ZD234)~~
【分类号】：TN03;TN41
[Abstract]:In order to solve the problem of electromagnetic compatibility (EMC) in the work of printed circuit board (PCB), the performance of the acquisition unit PCB and the EMC of the shield box is studied. The PCB is divided according to the function, the width of the power cord and ground wire is thickened, and the patch element is selected. Reducing the parallel length between adjacent transmission lines; At the same time, the shielding box is designed and arranged with antistatic metal shrapnel in the chassis of the removable panel, which can increase the conductivity of the panel and other locations of the case, reduce the accumulation of electrostatic charge, and improve the immunity of the equipment. Reduce radiation harassment. Finally, based on HFSS software, the modeling and simulation of PCB and shield box are carried out. The results show that the optimized PCB electromagnetic field distribution is more uniform, the shielding effect of the shield box is remarkable, and the EMC characteristics are greatly improved. It is proved that the design of PCB and shield box meets the test requirements.
【作者单位】： 大连理工大学电气工程学院;
【基金】：国家自然科学基金(51277020) 中央高校基本科研业务专向基金(DUT15ZD234)~~
【分类号】：TN03;TN41
【参考文献】
相关期刊论文 前4条
1 杨晓西;曾翔君;任伟;侯云;郭宁宁;马元;;智能变电站电子式互感器的误差特性及校验问题的研究[J];电测与仪表;2015年23期
2 刘易勇;姚斯立;冯建强;李素洁;沈s，
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