海洋水色扫描仪斯特林制冷子系统的电磁干扰分析、屏蔽及测试  

Analysis, Shielding and Test of EMI of Stirling Cooling Sub-system in Ocean Water Colour and Temperature Scanner

作　　者：宣向春[1] 付雨田[1] 王维扬[1] 

机构地区：[1]中科院上海技术物理研究所,200083

出　　处：《低温与超导》1999年第4期13-16,共4页Cryogenics and Superconductivity

摘　　要：卫星有效载荷 十波段海洋水色扫描仪的红外探测器工作温度为85K,由斯特林制冷机制冷。由于红外探测器的光电转换信号很小,探测器及其到前置放大器的引线极易受到外部电磁干扰影响,必须对其及电磁干扰源进行屏蔽。文中将对海洋水色扫描仪斯特林制冷子系统的电磁干扰进行分析,并给出其屏蔽设计及测试结果。The infrared detectors in 10-band Ocean Water Colour and Temperature Scanner, one of the payloads in satellite, work at 85 K, which were cooled by a Stirling cooler. Since the voltage of the photoelectric signal of the infrared detectors is so small that it is easily affected by external EMI, the detectors and their leads to the preamplifiers and the external EMI source should be shielded.EMI analysis of Stirling cooling sub-system will be shown, and the, shielding design and test results will be given as well.

关 键 词：电磁干扰 屏蔽 斯特林制冷机 海洋水色扫描仪 

分 类 号：TB651[一般工业技术—制冷工程] P715.7[天文地球—海洋科学]