| 瞬态比较法测量液体导热系数 |
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| 引用本文： | 李夔宁,张继广,郭宁宁.瞬态比较法测量液体导热系数[J].低温物理学报,2010(3). |
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| 作者姓名： | 李夔宁 张继广 郭宁宁 |
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| 作者单位： | 重庆大学动力工程学院; |
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| 基金项目： | 重庆市自然科学基金计划项目(CSTC,2007BB6183)资助的课题~~ |
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| 摘 要： | 为了测量几种有机相变材料的导热系数,文章基于点热源瞬态法,设计研制了一台液体导热系数测定仪.采用比较法来有效降低系统误差,在25℃时用标准有机材料对仪器进行标定及校验后,结果显示其最大误差为5.3%,证明了仪器的可靠性,并用该仪器在25℃温度下测量了六种新型相变材料的导热系数,为其工程应用提供了依据.
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| 关 键 词： | 瞬态法 导热系数 热敏电阻 |
MEASURING THE CONDUCTIVITY OF LIQUIDS BY THE TRANSIENT COMPARISON METHOD |
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| LI Kui-ning ZHANG Ji-guang GUO Ning-ning School of Power Engineering,Chongqing University,Chongqing.MEASURING THE CONDUCTIVITY OF LIQUIDS BY THE TRANSIENT COMPARISON METHOD[J].Chinese Journal of Low Temperature Physics,2010(3). |
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| Authors: | LI Kui-ning ZHANG Ji-guang GUO Ning-ning School of Power Engineering Chongqing University Chongqing |
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| Institution: | LI Kui-ning ZHANG Ji-guang GUO Ning-ning School of Power Engineering,Chongqing University,Chongqing,400030 |
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| Abstract: | The author designed an equipment to measure the conductivity of the liquid which is based from the transient point source method.We used the comparison method in order to reduce the system deviation effectively, and then the equipment is demarcated and verified by different reference organic materials,the result show that the maximum deviation is 5.3%,and the reliability is proved.At last,the conductivities of six phase change materials were measured by this equipment at the same temperature.It provided a b... |
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| Keywords: | Transient method Thermal conductivity Thermistor |
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