摘要
在简要介绍噪声及干扰的基础上 ,详细分析了屏蔽的基本原理 ,进而提出一种多层屏蔽设计方法。在该测试系统中 ,选用 6层屏蔽盒 ,屏蔽盒材料由外到内分别是铜和铁。实验测试表明 ,该方法抗干扰能力强 。
In this article we introduce briefly noise and interference and analyse the basic principles of shield in detail. Furthermore, we suggest a shielding design method ,which has proved effective by testing. This would ensure reliability in use and precision in measurement of low frequency and low noise amplifier.
出处
《电子工程师》
2004年第4期41-43,共3页
Electronic Engineer
