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示波器是一种能够直接观察信号随时间变化情况的仪器,在电子技术和科学研究中有着广泛的应用.但是由于原理的复杂性,绝大多数同学按书本操作步骤做完后,还是不能很好掌握,尤其是判断在示波器的屏幕上会出现怎样的图形及为什么会出现这样的图形时,不能很好的作出判断和进行分析.
An oscilloscope is an instrument that can directly observe the change of signal with time. It has a wide range of applications in electronic technology and scientific research. However, due to the complexity of the principle, most of the students still cannot do well after completing the operation steps of the book. Mastery, especially when judging what kind of graphics will appear on the oscilloscope’s screen and why such a figure appears, cannot make good judgments and analysis.