稳态交流加热法小样品低温比热的测量  

SPECIFIC HEAT MEASUREMENT ON SMALL SAMPLES AT LOW TEMPERATURE USING STEADY-STATE AC HEATING METHOD

作　　者：孙长勇[1] 王继锁[1] 李丽华[1] 

机构地区：[1]聊城师范学院物理系,中国高等科学技术中心(世界实验室)

出　　处：《低温物理学报》1996年第6期438-442,共5页Low Temperature Physical Letters

摘　　要：本文介绍了用稳态交流加热法测量小样品低温比热的原理、方法、装置和微机自控的测量系统．作为检测在３０～１５０Ｋ范围内分别测量了两个质量不同的纯铜样品的比热，与现有数据符合很好．估计精度在１％以内．Abstract A steady-state ac heating method calorimeter are described for measuring specific heat of small samples at low temperature.Measurements of the specific heat of two copper samples from 30K to 150K have been done. The results are in good agreement with known data within an absolute accuracy of better than 1%.

关 键 词：低温比热测量 小梯品 稳态交流加热法 

分 类 号：O513[理学—低温物理]