小长径比脉冲管制冷机重力影响的实验研究  

Experimental study on effect of small aspect ratio on gravity of pulse tube refrigerator

作　　者：张广伟 王乃亮 荀玉强[1] 蔡京辉[1] Zhang Guangwei;Wang Nailiang;Xun Yuqiang;Cai Jinghui(Key Laboratory of Technology on Space Energy Conversion,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190;University of Chinese Academy of Sciences,Beijing 100049)

机构地区：[1]中国科学院理化技术研究所,中国科学院空间功热转换技术重点实验室,北京100190 [2]中国科学院大学,北京100049

出　　处：《低温工程》2022年第1期5-9,共5页Cryogenics

基　　金：国家重点研发计划项目资助(2018YFB0504600,2018YFB0504603)。

摘　　要：为了进一步探究重力对于小长径比脉冲管制冷机地面测试的影响,搭建了重力特性研究试验台,测试了不同输入功率下各角度的制冷机性能。实验结果表明,制冷机在角度为135°—150°时制冷能力最差。随着输入功率的增加,角度变化对于脉冲管制冷机的影响变小,相同角度下温度、输入功率和电流的波动值变小。In order to further explore the influence of gravity on the ground test of pulse tube refrigerator with small aspect ratio,a gravity characteristic research test-bed was built to test the refrigerator performance at different angles under different input power.The experimental results show that the refrigeration capacity of the refrigerator is the worst when the angle is 135°-150°.With the increase of input power,the influence of angle change on pulse tube refrigerator becomes smaller,and the fluctuations of temperature fluctuation,input power and current become smaller at the same angle.

关 键 词：重力 小长径比 脉冲管制冷机 同轴 

分 类 号：TB651[一般工业技术—制冷工程]