Bandwidth decides oscillograph measures ability basically to signal. 带宽抉择示波器对信号的根基测量能力。
The induction method for measuring the alternating magnetic field is improved with the oscillograph, the effect and precision of the experiment are improved. 摘要采用示波器对感应法测交变磁场实验进行了改进，提高了实验的效果和精度。
