| 圆柱定程干涉法声速测量原理与实验系统研制 |
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| 引用本文： | 冯晓娟,林鸿,刘强,周孟夏,段远源.圆柱定程干涉法声速测量原理与实验系统研制[J].工程热物理学报,2011(5):725-728. |
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| 作者姓名： | 冯晓娟 林鸿 刘强 周孟夏 段远源 |
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| 作者单位： | 清华大学热科学与动力工程教育部重点实验室;中国计量科学研究院; |
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| 基金项目： | 国家科技支撑计划(No.2006BAF06B03); 国家自然科学基金资助项目(No.51076074) |
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| 摘 要： | 气相声速是日前可测量的最精确的热物性之一,圆柱定程干涉法是极有应用前景的测量方法.本文分析了圆柱定程干涉法测量气相声速的实验原理,在此基础上研制了一套新的实验系统,由共鸣腔、压力仓、共振频率测量系统、温度和压力测量系统以及数据采集与控制系统组成.实验系统综合考虑了多种非理想因素的影响,提高了共振频率测量的信噪比,降低了...
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| 关 键 词： | 圆柱定程干涉 气相声速 实验研究 |
Fundamental Theory and Apparatus for Speed of Sound Measurement System Using Cylindrical Resonator |
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| FENG Xiao-Juan LIN Hong LIU Qiang ZHOU Meng-Xia DUAN Yuan-Yuan.Fundamental Theory and Apparatus for Speed of Sound Measurement System Using Cylindrical Resonator[J].Journal of Engineering Thermophysics,2011(5):725-728. |
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| Authors: | FENG Xiao-Juan LIN Hong LIU Qiang ZHOU Meng-Xia DUAN Yuan-Yuan |
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| Institution: | FENG Xiao-Juan~(1,2) LIN Hong~2 LIU Qiang~1 ZHOU Meng-Xia~1 DUAN Yuan-Yuan~1 (1.Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University,Beijing 100084,China,2.National Institute of Metrology,Beijing 100013,China) |
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| Abstract: | Speed of sound is an important thermophysical property which can be measured very precisely.Cylindrical resonator is a promising approach to measure speed of sound accurately.Based on the fundamental theory of cylindrical resonator,a new experimental system was built including the resonator and pressure vessel,the frequency measurement system,the temperature and pressure measurement system and the data acquisition system.Great efforts have been made to obtain high signal-to-noise performance. |
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| Keywords: | cylindrical resonator speed of sound experimental study |
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