8K二级脉管制冷机的实验研究  

EXPERIMENTAL STUDY OF A TWO-STAGE PULSE TUBE REFRIGERATOR REACHING 8K

作　　者：邱利民[1] 陈国邦[1] 郑建耀[1] 颜鹏达[1] 甘智华[1] 黄志秀[1] 

机构地区：[1]浙江大学制冷与低温研究所,杭州310027

出　　处：《低温物理学报》1997年第1期77-80,共4页Low Temperature Physical Letters

基　　金：国家自然科学基金

摘　　要：介绍了自行研制的二级脉管制冷机的基本结构,该机引入了新颖的第二小孔调相器,采用有阀压机驱动,通过自行研制的时序控制器和电磁阀由计算机进行实时控制,初步试验结果:第一级和第二级的最低制冷温度分别为46K和8.6K。This paper describes the basic structure of a two-stage pulse tube refrigerator. A novel phase shifter named double orifice is introduced. The machine is driven by a valved compressor and the on-off timing is controlled by a computer and solenoids. The lowest temperature of 8. 6K at the cold end of the second stage is achieved.

关 键 词：制冷机 二级脉管 

分 类 号：TB651[一般工业技术—制冷工程]