摘要
为了深入研究静电放电(ESD)过程及其辐射场情况,解决实验测量数据重复性差、近场辐射场特性难以观测等问题。通过电磁仿真与实验相结合的方法建立ESD模拟器3维电磁模型,验证分析对水平耦合板放电的辐射场特性和受试设备(EUT)的耦合电压特性。研究发现:对水平耦合板放电的辐射场在放电点有最大电场强度,且电场强度随着与放电点距离的增加而呈现先快后慢的衰减。3维电磁仿真结果表明:ESD辐射场主要通过EUT壳体表面的缝隙和接口耦合到设备内部,耦合电压与测试结果一致。因此在电子设备设计阶段可利用该3维电磁模型对其内部抗扰度进行验证,从而降低电子设备抗干扰研发成本,提高设备ESD抗扰度测试过关率。
In order to study the electrostatic discharge（ESD） process and its radiation field distribution deeply,and to solve the bad repeatability of measurement data and the difficulty of near field observation and measurement,we estalished an ESD 3 D electromagnetic model and verified the model by the combination of electromagnetic simulation and experiment.Moreover,we analyzed the characteristics of the radiation field of the horizontal coupling plate and the coupling voltage characteristics of equipment under test（EUT）.The study reveals that the radiation field of the horizontal coupling plate has the maximum electric field intensity at the discharge point,and the field strength decreases with the increase of the distance from the discharge point.Besides,the results of 3 D electromagnetic simulation show that the ESD radiation field is mainly coupled to the inside of the device through the gap and interface of the EUT shell.The coupling voltage is consistent with the test results.Therefore,in the design stage of electronic equipment,the 3-dimensional electromagnetic model can be used to verify its internal immunity,which helps to reduce research cost and improve pass rate of ESD immunity test.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2017年第10期3396-3402,共7页
High Voltage Engineering
基金
国家自然科学基金(61601233
61750110535)
国防预研项目(6140209050116ZK53001)
江苏省自然科学基金(BK20150918)
江苏省双创团队人才计划(SRCB201526)
江苏高校优势学科项目(1081080015001)~~
关键词
静电放电
电磁场测试
电场分布
静电防护
静电放电抗扰度测试
静电放电枪
electrostatic discharge
electromagnetic field test
electric field distribution
electrostatic protection
electrostatic discharge immunity test
ESD gun
