中文摘要：

本文介绍了一套高频同轴脉冲制冷机在低功率输入条件下的性能特性，研究了减弱冷头方向性影响的方法．该制冷机采用中科院理化所自制的2cc线性压缩机驱动，输入功率30W，冷头垂直向下放置时，冷头的无负荷最低温度为58．9 K，在80 K可提供0．7 W的制冷量。

英文摘要：

This paper introduces the performance of a high frequency coaxial pulse tube cooler, which has a cooling capacity of 0.7 W at 80 K with 30 W electrical input power. And the effect of gravity orientation was discussed in this paper.