工业现场硬件电路系统的电磁兼容性设计策略（英文）  

Design strategy of electromagnetic compatibility for industrial field hardware circuit system

作　　者：巫茜[1] 邓新莉[2] Qian WU Xin-li DENG(College of Computer Science and Engineering, Chongqing University of Technology, Chongqing 400054, China Chongqing Radio ＆ TV University, Chongqing 400052, China)

机构地区：[1]重庆理工大学计算机科学与工程学院,重庆400054 [2]重庆广播电视大学,重庆400052

出　　处：《机床与液压》2016年第24期57-62,共6页Machine Tool & Hydraulics

基　　金：supported by information management and information system professional core curriculum construction fund of Chongqing University of Technology and science and technology project of Chongqing Municipal Education Commission (No. KJ1603811)

摘　　要：工业现场的恶劣电磁环境对硬件电路系统提出了越来越高的电磁兼容性要求。为了避免电磁干扰可能导致的误跳闸或误报警等事故,探讨了工业现场硬件系统的电磁兼容性设计策略。讨论了电磁环境对硬件系统的影响与抗电磁干扰设计理念,剖析了可能的电磁干扰源与抗电磁干扰机理,针对数字电路在电磁干扰下的行为,研究了电磁兼容性设计问题。实验效果验证了电路的合理布局与布线以及良好接地是必须采取的抗电磁干扰措施。工程实践表明:上述提出的电磁兼容性设计策略是行之有效的。The abominable electromagnetic environment of the industrial field put forward higher and higher elec- tromagnetic compatibility requirements to the hardware circuit system. In order to eliminate the fault of false trip- ping or false alarm etc caused by the interference of the electromagnetic interference, the paper explored the de- sign strategy of electromagnetic compatibility in the industrial field hardware system. In this paper, it discussed on the influence of electromagnetic environment for the hardware system and the design concept of anti electromagnet- ic interference, made the anatomy on possible electromagnetic interference source and anti electromagnetic inter- ference mechanism, and studied on the problem of electromagnetic compatibility design aiming at the behavior of digital circuits under electromagnetic interference. The experimental result demonstrated that the reasonable layout and circuit wiring and the good grounding are the necessary measures to be taken to resist electromagnetic interfer- ence. Engineering practice shows that the above mentioned electromagnetic compatibility design strategy is effec- tive.

关 键 词：电路硬件系统 电磁兼容性 抗电磁干扰策略 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]