两种测量空气比热容比方法的综合探讨  

作　　者：战倍倍 罗剑 祁小四 

机构地区：[1]贵州大学物理学院,贵州贵阳550025

出　　处：《科技创新与应用》2020年第26期118-120,123,共4页Technology Innovation and Application

基　　金：国家自然基金(编号:11964006);贵州省科技平台及人才团队计划(编号:2017-5610)。

摘　　要：空气比热容比是描述气体热力学性质的重要参数,在大学物理实验中有多种测量方法。文章主要讲述两种常用方法,即谐振动法和绝热膨胀法,分别从实验原理、影响因素及优缺点三个方面进行综合探讨,希冀在以后的教学实践中提供实验教学方法指导,增加实验可控性,减小实验误差。The specific heat capacity ratio for air is an extremely important physical parameter, which is used to describe thermodynamic properties. There are many experimental methods of specific heat capacity ratio for air in college physics experiment. This paper mainly introduces two commonly used methods, namely, the Harmonic Vibration Method and the Adiabatic Expansion Method.The three aspects of experimental principles, influencing factors, and the advantages and disadvantages about two methods are discussed comprehensively, so as to provide guidance for experimental teaching method in future teaching practice and increase the controllability of experiments and reduce experimental deviation.

关 键 词：空气比热容比 谐振动法 绝热膨胀法 

分 类 号：O4-33[理学—物理]