用脉冲信号计时器测量气体比热容比  

Measurement of Gas Specific Heat Ratio using Pulse Signal Timer

作　　者：刘万林[1] 刘凌飞[1] 袁辉[1] 陈东生[1] 

机构地区：[1]上海电力学院,上海200090

出　　处：《大学物理实验》2013年第3期37-39,共3页Physical Experiment of College

基　　金：上海市大学生科研创新基金资助

摘　　要：主要说明用自制光电门配合计算机辅助测量气体比热容比的原理和方法,当小球挡住光电门的光路时,会使光敏管产生一个电脉冲,可以利用计算机声卡配合audition软件捕捉这个脉冲,从而实现小球振动周期的测量,提高实验的精确度。The principle and method of measuring gas specific heat ratio were described mainly using self-made photoelectric gate with computer auxiliary, when the light path of photoelectric gate is bloeked by a small ball, will generate an electrical pulse from the photosensitive tube, we could use a computer sound card with audition software to capture the pulse,in order to achieve the measurement of ball vibration cycle, improve the accuracy.

关 键 词：自制光电门 气体比热容比 计算机 Audition软件 

分 类 号：O4-33[理学—物理]