| 热线法测定气体导热系数实验的探讨与改进 |
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| 引用本文： | 丁方圆,潘黎明,于瑶,苏为宁.热线法测定气体导热系数实验的探讨与改进[J].物理实验,2004,24(12):39-41. |
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| 作者姓名： | 丁方圆 潘黎明 于瑶 苏为宁 |
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| 作者单位： | 南京大学,物理系,江苏,南京,210093 |
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| 摘 要： | 在准静态低气压下测量气体的热传导系数时，理论上在低压强范围内应得到Q^-1低-p^-1线性关系图象，但实验数据所绘出的图象出现明显的非线性．本文着重分析出现非线性的原因，并提出实验改进的方法。
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| 关 键 词： | 热线法 导热系数 准静态 低气压 非线性 线性外推法 |
| 文章编号： | 1005-4642(2004)12-0039-03 |
| 修稿时间： | 0204年5月10日 |
Discussion and modification of the experiment of measuring the heat conductin of coefficient of gas based on the hot-wire method |
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| DING Fang-yuan,PAN Li-ming,YU Yao,SU Wei-ning.Discussion and modification of the experiment of measuring the heat conductin of coefficient of gas based on the hot-wire method[J].Physics Experimentation,2004,24(12):39-41. |
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| Authors: | DING Fang-yuan PAN Li-ming YU Yao SU Wei-ning |
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| Abstract: | When the heat conduction of coefficient of gas is measured under the quasi-static and low-pressure, a linear graph of Q -1 low-p -1 should be gotten in the theory, but the resulting in shows nonlinear. This paper analyzes the reason non-linearity and improvies the measurement method. |
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| Keywords: | hot-wire method coefficient of heat conductivity quasi-static low pressure nonlinear linear extrapolation |
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