中频发电机对检测装置的干扰剖析及EMI滤波器的实现  

Analysis of the Interference of Intermediate Frequency Generator on Detection Device and the Realization of EMI Filter

作　　者：易红[1] 高鹏[1] 郝保安[1] 程武奎[2] 何辰[1] 陈春玉[1] 朱世英[1] 

机构地区：[1]中国船舶重工集团公司第七O五研究所 [2]西安东风仪表厂

出　　处：《电子技术（上海）》2009年第8期66-69,共4页Electronic Technology

摘　　要：随着中频发电机的广泛应用,对其电磁兼容性的研究越来越受到重视。由于漏抗的存在使得中频发电机产生共模干扰,针对某检测装置噪声高的问题,分析了中频发电机噪声对检测装置自噪声的影响,确认了噪声干扰源、干扰机理及干扰途径,首次提出降低其干扰的技术措施,设计了EMI滤波电路,并对滤波效果进行了实际装载试验,其结果大大提高了该检测装置的性能。With the wide use of intermediate frequency generator （IFG）, more attention is paid on its electromagnetic compatibility （EMC）. Due to the existence of leakage reactance IFG will produce common-mode electromagnetic interference （EMI）. In this paper, aiming at the problem of high noise in a detection device, the effect of noise from the IFG on self noise of the detection devices is analyzed; the noise source, interference mechanisms, and interference paths are confirmed; the technical measures for reducing the interference are proposed first time; an EMI filter circuit is designed; an actual loading test of the filter＇s effect is carried out as well. The result shows that a great improvement in performance of the detection device is got.

关 键 词：中频发发电机 干扰 电磁兼容 滤波器 

分 类 号：TN86[电子电信—信息与通信工程] U468.3[机械工程—车辆工程]