摘要
分析了传统的用共鸣管测量声速实验中存在的问题，提出了两种减小误差的新的改进方法．实验中用信号发生器来调节共鸣频率，用毫伏表检测共鸣点，从而较容易地提高了测量精度．
Some problems in the traditional experiment of measuring sound velocity by using the resonant pipe device are analyzed. Two different new improvements that can reduce the error are presented. By adjusting the resonant frequency with signal generator and by detecting the point of resonance with a millivoltmeter in this experiment the aceuracy of measurement is improved easily.
出处
《大学物理》
1998年第7期35-37,共3页
College Physics
