绝热法测量金属材料的比热  

Measuring the specific heat of metals using adiabatic method

作　　者：张义邴[1] 李铭[1] 朱红妹[1] 马洪良[1] 易传祥[1] 韩咏梅[1] 赵新洛[1] 

机构地区：[1]上海大学理学院物理系,上海200444

出　　处：《物理实验》2013年第3期1-3,10,共4页Physics Experimentation

摘　　要：采用固体绝热和真空绝热测量了金属的比热.热量由恒流源通过合金电阻片提供,温度由铂金属薄膜电阻温度计测量.该方法涉及了真空技术、传热技术和温度测量,与混合法及冷却法测量比热相比,该实验更突出比热的基本概念和对学生综合能力的培养.The specific heat of metals was measured based on adiabatic techniques. Heat was sup- plied by a current source through an alloy film resistance; temperature was measured by a Pt film thermometer. The experiment involved vacuum technology, thermal transfer and temperature meas- urement. Compared to the conventional methods of water calorimeter or natural cooling, adiabatic method has advantages in helping students to understand the definition of specific heat and training their comprehensive skills.

关 键 词：比热 绝热 金属 

分 类 号：O551.3[理学—热学与物质分子运动论]