大学物理 ›› 2016, Vol. 35 ›› Issue (5): 19-23.

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稳态平板法测液体导热系数的分析

安艳伟,谢 亮   

  1. 北方工业大学理学院,北京 100144
  • 出版日期:2016-05-20 发布日期:2016-05-20
  • 作者简介:安艳伟(1969—),女,河北正定人,北方工业大学实验师,主要从事大学物理实验的教学与研究工作.

Analysis on using stable plate method to measure the thermal conductivity of liquid

AN Yanwei,XIE Liang   

  1. College of Science,North China University of Technology,Beijing 100144,China
  • Online:2016-05-20 Published:2016-05-20

摘要: 用稳态平板法测定了不同温度下液体的导热系数.对冷却速率的计算分别采用线性拟合、逐差法等6 种方法;并计算出了相应的导热系数.最终的导热系数计算结果表明,在冷却速率的6 种计算方法中,线性拟合效果比较好.

关键词: 稳态平板法, 液体, 冷却速率, 导热系数

Abstract: The thermal conductivity of liquid at different temperatures has been measured by using the stableplate method.Six methods such as linear fitting,progressive difference and so on,are used in the calculation of cooling rate. Meanwhile,the corresponding thermal conductivity coefficients have been calculated. The final thermal conductivity calculation results show that the result given by linear fitting among the six different ways is the best.

Key words: stable plate method, liquid, cooling rate, thermal conductivity