| 空气比热容比实验的原理和系统误差分析 |
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| 引用本文： | 邓于,张家伟,吴强.空气比热容比实验的原理和系统误差分析[J].重庆文理学院学报(自然科学版),2007,26(1):35-38. |
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| 作者姓名： | 邓于 张家伟 吴强 |
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| 作者单位： | 重庆文理学院,物理与信息工程系,重庆,永川,402160 |
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| 基金项目： | 重庆文理学院校科研和教改项目 |
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| 摘 要： | 从热力学理论入手，对空气比热容比测定实验仪器和常见的两种实验原理表述进行了分析，给出了实验过程中正确的P—V图和实验状态及其实验原理的正确理解，提出了一种客观的实验理论表述方法．通过对实验仪器的改进，取得了良好的实验结果，实验误差由原来大于7％下降到2％以内．
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| 关 键 词： | 空气比热容比 P-V图 实验误差 实验改进 |
| 文章编号： | 1673-8012（2007）01-0035-04 |
| 收稿时间： | 2006-10-30 |
| 修稿时间： | 2006年10月30 |
The Principles and Its System Error Analysis of Measuring Specific Heat Ratio of the Air |
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| DENG Yu,ZHANG Jia-wei,WU Qiang.The Principles and Its System Error Analysis of Measuring Specific Heat Ratio of the Air[J].Journal of Chongqing University of Arts and Sciences,2007,26(1):35-38. |
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| Authors: | DENG Yu ZHANG Jia-wei WU Qiang |
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| Abstract: | In this paper, based on the theories of thermodynamics, the experimental instruments and two common experimental principles of measuring specific heat ratio of the air are anatomized, and the exact comprehensions of the P - V plots, states and principles of the experiment are also presented. A newmethod to describe the experimental theory is put forward in this paper. The experimental accuracy is deeply improved by the improvements of experimental instrument, for the experimental error is reduced from 7 percent down to 2 percent. |
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| Keywords: | air specific heat ratio P - V figure experimental error experimental improvement |
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