空气比热容比测量实验教学探究  

Investigation of Experimental Teaching on Air Specific Heat Capacity Ratio Measurement

作　　者：李中正[1] 李跃武[1] 彭鸿喜[1] 殷丹 LI Zhongzheng;LI Yuewu;PENG Hongxi;YIN Dan(School of Energy and Power Engineering,Gansu Minzu Normal University,Hezuo Gansu 747000)

机构地区：[1]甘肃民族师范学院能源与动力工程学院,甘肃合作747000

出　　处：《甘肃高师学报》2025年第1期97-101,共5页Journal of Gansu Normal Colleges

基　　金：2023年甘肃民族师范学院校长科研基金高层次人才引进项目“阿尔芬波加热日冕的磁流体数值模拟研究”(2023ZCC-02);2024年甘肃民族师范学院教学成果培育项目“跨学科融合:面向新工科的高等数学课程内容拓展与教学模式优化”(202494-16)。

摘　　要：文章分析了空气比热容比测量的两种实验方法:Clement-Desarmes法和振动周期法.通过探讨各自的实验原理和步骤,明确了实验教学的重点,提出了有效降低实验误差的策略.在Clement-Desarmes法中,绝热过程和等温过程对同一热力学系统起作用,实验的关键在于操作者对绝热膨胀过程的控制.在振动周期法中,教学的核心是帮助学生理解小球的周期性振动以及容器内气体绝热过程建模的合理性.该研究为改进实验教学提供了有益的指导.This paper provides a detailed analysis of two experimental methods for measuring the specific heat ratio of air:the Clement-Desarmes method and the vibration period method.By exploring the principles and procedures of each experiment,the key focuses for experimental teaching are clarified,and strategies for effectively reducing experimental errors are proposed.In the Clement-Desormes method,both adiabatic and isothermal processes act on the same thermodynamic system.The key to the experiment lies in the operator's control of the adiabatic expansion process.In the vibration period method,the core teaching objective is to help students understand the periodic motion of the ball and the rationality of modeling the adiabatic process of the gas inside the container.This study offers valuable guidance for improving experimental teaching.

关 键 词：比热容比 Clement-Desarmes法 振动周期法 实验教学 绝热过程 

分 类 号：G642[文化科学—高等教育学]