热针法测量材料导热系数研究

被引:23
作者
谢华清
王锦昌
程曙霞
刘岩
机构
[1] 中国科学院上海硅酸盐研究所
[2] 中国科技大学热能工程系
关键词
热针; 导热系数;
D O I
暂无
中图分类号
TB302 [工程材料试验];
学科分类号
摘要
研究了可测量软性材料导热系数的热探针法 ,所用热探针由 2 0匝直径为 0 .0 2 mm的漆包铜丝紧密封进外径为 0 .3 m m的不锈钢针管制成 ,铜丝同时起加热和测温元件作用 .理论和实验研究表明 ,采用适当延迟测量时间可以克服因热针壁厚引起的误差 .测量误差估计小于± 3 %
引用
收藏
页码:6 / 9
页数:4
相关论文
共 9 条
[1]  
Transient heat flow apparatus for the measurement of thermal conductivities. Hooper F C,Lopper F R. Trans Am Soc Heat Vent Engres . 1950
[2]  
A ting heat probe for measuring the thermal conductivities of non-rigid materials. Cheng S X,Jiang Y F,Liang X G. Measurement Science and Technology . 1994
[3]  
A simultaneous measurement of the thermal conductivity and the thermal diffusivity of liquids by the transient hot wire method. Nagasaka Y,Nagashima A. The Review of Scientific Instruments . 1981
[4]  
Absolute measurement of the thermal conductivity of electrically conducting liquids by transient hot -wire method. Nagasaka Y,Nagashima A. Journal of Physics E Scientific Instruments . 1981
[5]  
Thermal conductivity of solids under pressure by transient hot -wire method. Andersson P,Backsrom G. The Review of Scientific Instruments . 1976
[6]  
A convenient method of measuring the thermal conductivity of biological tissue. Liang X G,Ge X S,Zhang Y P. Physics in Medicine and Biology . 1991
[7]  
The axial -flow error in thermal conductivity probe. Blackwell J H. Canadian Journal of Physics . 1956
[8]  
An apparatus to measure the thermal conductivity of liquids. Castro C A N,Calado J C G,Wakeham W A,et al. Journal of Physics E Scientific Instruments . 1976
[9]  
A transient flow method for determination of thermal constants of insulating materials in bulk part -I -theory. Blackwell J H. Journal of Applied Physics . 1954