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良导体导热系数测量的新尝试
引用本文:李成龙,张建秋.良导体导热系数测量的新尝试[J].安徽理工大学学报(自然科学版),2005,25(2):75-78.
作者姓名:李成龙  张建秋
作者单位:安徽理工大学数理系,安徽,淮南,230001;安徽理工大学数理系,安徽,淮南,230001
摘    要:采用稳态法,使用精确度更高的电位差计替代原仪器上的毫伏表来测温差电动势,从而可以尽最大可能的缩短测温孔的间距,使测量的导热系数有更高的精确度和使用性。此外利用热水槽作热源,既利于控温,又能更好的保持稳态时的稳定供热,稳态时扰动较小。

关 键 词:热传导  热流密度  傅里叶方程  导热系数
文章编号:1672-1098(2005)02-0075-04
修稿时间:2004年12月30

A New Try on the Measurement of Coefficient of Heat Conduction for a Good Heat Conductor
LI Cheng-long,ZHANG Jian-qiu.A New Try on the Measurement of Coefficient of Heat Conduction for a Good Heat Conductor[J].Journal of Anhui University of Science and Technology:Natural Science,2005,25(2):75-78.
Authors:LI Cheng-long  ZHANG Jian-qiu
Abstract:By means of stabilization method, this experiment replaces the mili-voltmeter by the potential difference meter to measure the electromotance of electric thermo-couple. In this way, the authors are able to reduce the distance of the measured holes and make the measured coefficient of heat conduction more precise and usable. Besides, by using the hot-water as heat source, the authors are able to control the temperature easily and supply heat steadily.
Keywords:Heat Conduction  Density of heat transmission  Fourier Equation  Coefficient of heat conduction
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