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

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.