摘要
降低制冷温度至4 K温区是高频脉冲管制冷机的最新发展要求。本文介绍了一套热耦合型二级高频脉冲管制冷机的性能特性,它可以达到低于15 K以下的最低温度,是目前报道的高频二级脉冲管制冷机能获得的最低温度．通过对制冷机一级预冷、二级输入功率、二级冷量、室温条件等影响的分析,从实验角度揭示了该二级制冷系统的复杂影响,为进一步的深入分析和改进提供了基础。
Multi-stage version is the main method to reach the temperature below 20 K for high frequency pulse tube cryocoolers （HFPTC）. This paper introduces the performance of a set of thermal-coupled version two stage HFPTC which could reach the temperature below 15 K, the reported lowest temperature for two stage HFPTC. Through the experimental analysis of first stage pre-cooling temperature, second stage input power, second stage cooling power, room temperature effect, the complex effects of this cooler are revealed for further analysis and improvement.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2006年第3期385-387,共3页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目(No.50206025)
