液体比热容实验的温度设定及实验不确定度的理论分析  

Settlement of temperature in liquid specific heat experiment and theoretical analysis of experimental uncertainty

作　　者：卢贵武[1] 韩志强[1] 郑超[1] 张鹏[1] 

机构地区：[1]中国石油大学(北京)理学院,北京102249

出　　处：《物理实验》2013年第11期38-40,44,共4页Physics Experimentation

摘　　要：用热传导理论研究了初始温度、终止温度和环境温度对"电热法测定液体比热容"实验结果的影响,提出了设定终止温度的方法.实验数据测量和相关计算表明,相对于传统的温度对称测量方法,改进后的方法可显著提高实验准确度.Using heat conduction theory, the effect of initial temperature, final temperature and environmental temperature on the experimental result of liquid specific heat was studied, and a im- proved method to set the final temperature was discussed. The experimental data and correlation cal- culation indicated that the improved method could obviously improved the uncertainty of experiment in comparison with the traditional method of symmetrical temperature.

关 键 词：比热容 温度 不确定度 

分 类 号：O551.3[理学—热学与物质分子运动论]