摘要
为适应电磁干扰预测试发展的需要,研制了一套电磁干扰预测试系统,该系统用通用频谱仪取代专用的电磁干扰接收机,大大降低了系统成本。对频谱仪和接收机的构成原理进行了深入分析,从理论上论证了用频谱仪进行预测试的可能,然后用比对试验比较了两套系统的性能,数据分析表明该系统是实用的。
A system for electromagnetic interference （EMI） pre-measuring is developed to meet the demand of EMI pre-measuring. The system uses an ordinary spectrum analyzer to replace the special EMI receiver, so its cost is decreased sharply. The structure of spectrum analyzer and EMI receiver is discussed deeply and as a result a spectrum analyzer can be used in the pre-measuring system in theory. At last, a comparing test is carried out to demonstrate the system.
出处
《测控技术》
CSCD
2005年第8期18-20,共3页
Measurement & Control Technology
基金
总装资助项目
