航空电源产品金属机箱的电磁兼容性设计(上)

EMC Design of Metallic Case for the Aircraft Power Supply Products

对航空电源系统中的电子产品来说,其金属机箱除了具有机械支撑和保护作用外,还应具有一定的屏蔽效能来提高电子产品的电磁兼容性。本文对航空电源产品金属机箱的电磁兼容性设计进行了分析研究,并以产品实际的电磁兼容性测试为例来说明金属机箱电磁兼容性设计对电子产品可靠性产生的重要意义,最后对金属机箱屏蔽效能测试的原理和方法进行了介绍。

For electronic prOduct Of the aircraft power supply system, the metallic case of electronic product should have certain shielding effectiveness to improve its EMC ability except mechanical supporting and protecting function： The article analyzed and researched EMC design of metallic case for the aircraft power supply product, and take the real EMC test of product as the example, tO explain the importance of the metallic case EMC design for electrical product＇s reliability Should not be disregarded.At last, the principle and method to measure the shielding effectiveness of metallic case are introduced.