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| 用计算机数据采集系统测量液氮的汽化潜热 | |
| 引用本文： | 余建波,王瑗,陈民溥,王云,赵铁松. 用计算机数据采集系统测量液氮的汽化潜热[J]. 物理实验, 2007, 27(3): 14-16 |
| 作者姓名： | 余建波 王瑗 陈民溥 王云 赵铁松 |
| 作者单位： | 1. 上海交通大学,物理系,上海,200240 2. 北京化工大学,物理系,北京,100029 3. 中国人民大学,物理系,北京,100872 |
| 摘 要： | 在液氮汽化潜热的测量实验中,通过计算机数据采集系统准确记录了液氮汽化过程中质量的变化,并由铜的定压比热随温度变化的曲线准确计算出了液氮的汽化潜热. |
| 关 键 词： | 数据采集 汽化潜热 液氮 定压比热 |
| 文章编号： | 1005-4642（2007）03-0014-03 |
| 修稿时间： | 2006-05-15 |
Measurement of latent heat of vaporization of liquid nitrogen using computer data acquisition system |
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| YU Jian-bo,WANG Yuan,CHEN Min-pu,WANG Yun,ZHAO Tie-song. Measurement of latent heat of vaporization of liquid nitrogen using computer data acquisition system[J]. Physics Experimentation, 2007, 27(3): 14-16 | |
| Authors: | YU Jian-bo WANG Yuan CHEN Min-pu WANG Yun ZHAO Tie-song |
| Affiliation: | 1. Department of Physics, Shanghai Jiao Tong University, Shanghai 200240; 2. Department of Physics, Beijing University of Chemical Technology, Beijing 100029 ; 3. Department of Physics, Renmin University of China, Beijing 100872 China |
| Abstract: | In the experiment on measuring latent heat of vaporization of liquid nitrogen,the mass variety in the process of liquid nitrogen vaporization can be recorded exactly using the data acquisition system.The latent heat of vaporization of liquid nitrogen is obtained with high precision from the temperature dependence of the heat capacity of copper. |
| Keywords: | data acquisition latent heat of vaporization liquid nitrogen specific heat at constant pressure |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |