低温温度测量与控制系统研究  

Investigation on cryogenic thermometry and temperature control system

作　　者：王钊[1] 陈焕新[1] 谢军龙[1] 王惠龄[1] 毕冬梅[1] 张恒兴[1] 

机构地区：[1]华中科技大学制冷与低温工程系,武汉430074

出　　处：《低温工程》2010年第6期16-18,共3页Cryogenics

基　　金：国家自然科学基金资助项目(50876034)

摘　　要：简要介绍了G-M制冷机在低温实验中的的应用。针对低温实验过程中的温度测量与控制要求,提出在G-M制冷机内部设置加热器调节被测温度,解决低温下温度的测量控制问题。该系统可应用于低温下材料热物性测量和固体接触界面热阻实验等。温度控制范围为30 K-200 K,测量精度优于1 K,对于低温实验技术具有重要意义。The use of G-M refrigerator in the cryogenic experiment was introduced. According to the temperature measurement and temperature control requirements, two heating elements were installed to adjust the temperature in G-M refrigerator for solving the problem of temperature measurement control. The method and device could be applied to the thermal properties measurement of material and cryogenic interface ther- mal resistance experiment. The experiment results show that the scope of temperature is 30K - 200K and the relative error is less than 1 K.

关 键 词：G-M制冷机 温度测量 温度控制 接触热阻 

分 类 号：TB663[一般工业技术—制冷工程]