微型制冷机在固体低温热导率测量中的应用及调温附加温差的消除  

An Application of Cryocooler in the Measurement of Solid Low Temperature Heal Conductivity and Elimination of the Additional Temperature Difference for Thermocontrolling

作　　者：肖仪华[1] 

机构地区：[1]贵州大学物理系,550025

出　　处：《贵州大学学报（自然科学版）》1997年第4期242-248,共7页Journal of Guizhou University:Natural Sciences

摘　　要：本文介绍应用LTS－21型制冷机测量固体低温热导率的装置和方法．在一定的条件下，消除了由于调节温度所产生的附加温差，在20－280K温度范围内得到了与给出的曲线较好符合的测量结果．This paper describes the device and technique of applying the LTS-21 Refrigerator to measure low temperature heat Conductivity. The additional temperature difference resulting form thermocontrolling was eliminated under certain cases. In the range of 20 to 280K, a better measurement result was obtained, and was agreed with the given curve.

关 键 词：制冷机 低温热导率 附加温差 温度调节 

分 类 号：TB651[一般工业技术—制冷工程]