绝热膨胀法测量空气比热容比实验教学方法探讨  

Discussion on Experimental Teaching Method of Measurement of Air Specific Heat Capacity Ratio Using Adiabatic Expansion Method

作　　者：毕会英[1] 

机构地区：[1]北京科技大学天津学院物理实验室

出　　处：《物理通报》2017年第4期85-89,共5页Physics Bulletin

摘　　要：针对空气比热容比测量过程中由于不确定因素导致的误差较大的问题,采取在设定相对误差最大允许值的前提下,由理论值推导出测量参考值取值范围,制定出个性化的实验教学方案,以此来指导实验过程的教学方法,增加了实验的可控性,有效减小了实验误差.Aiming at the problem of errors from air specific heat capacity ratio measurement, an experimental teaching method for decreasing errors was proposed. This method presupposed the relative error was less than 3%, and then the measurement reference values were deduced. The Personalized experimental program was established. It was used to guide students for fulfilling the experiment. As a result, the uncertainties, always occurred in the experiment, were controllable effectively and the experimental error were reduced . The expected results have been achieved.

关 键 词：空气比热容比实验 实验教学方法 实验误差 测量值范围 

分 类 号：O551.3-4[理学—热学与物质分子运动论] G642[理学—物理]