使用驻波法测波长时 示波器仅显示了一个信号 为使示波器同时显示两个波形 以下操作不正确的是 ？
已帮助 人
使用驻波法测波长时，示波器仅显示了一个信号，为使示波器同时显示两个波形，以下操作不正确的是 ？ When using the standing wave method to measure the wavelength, the oscilloscope only displays one signal. In order to make the oscilloscope display two waveforms at the same time, which of the following operations is incorrect ？
A．检查示波器面板显示旋钮是否在“double”档上 Check whether the display knob on the oscilloscope panel is in the "double" position
B．检查连接示波器线路是否接好 Check whether the circuit connecting the oscilloscope is well connected
C．适当改变信号发生器信号频率和振幅 Properly change the frequency and amplitude of signal generator signal
D．上下调节示波器显示位置按钮，观察屏幕波形是否移动 Adjust the oscilloscope display position button up and down to observe whether the screen waveform moves.
回答
共1条回复-
正弦波