In conclusion, to use an analog oscilloscope, you need to adjust three basic settings to accommodate an incoming signal:· The attenuation or amplification of the signal. Use the volts/div control to adjust the amplitude of the signal before it is applied to the vertical deflection plates.· The time base. Use the sec/div control to set the amount of time per division represented horizontally across the screen.· The triggering of the oscilloscope. Use the trigger level to stabilize a repeating signal.Also, adjusting the focus and intensity controls enables you to create a sharp, visible display.
总之，使用模拟示波器时，为了完全显示连续出现的信号波形，需要调节三个基本按键：衰减或增大信号：使用“volts/div”控制键，以便在信号还未加到垂直偏转板之前调节信号的振幅。时基：使用“sec/div”控制键，设置屏幕水平方向每格所代表的时间长短。示波器的触发：使用“触发电平”控制键稳定重复显示的信号。还可以调节聚焦和亮度控制旋钮，以保证显示的波形尖锐和可见
举一反三
- Use _______ at the beginning of the conclusion to signal that you're wrapping up the essay.
- the use of signal
- You can use the cell phone _____ the signal is strong enough.
- The signal transmission portion of the analog video surveillance system is responsible for the upstream transmission of the video signal and the downstream transmission of the control signal. ( ) A: 正确 B: 错误
- 2. Railway signals can be divided into home signal, starting signal, distant signal, repeating signal and shunting signal.
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You can use the cell phone _____ the signal is strong enough. A: ever since B: as if C: wherever D: unless
- 1
When people use __________ such as a signal to the end, it can make the structure much clearer.
- 2
To signal a pause longer than a comma, or a change in tone, we can use a ______.
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The filtered signal will have a time delay compared with the original signal. ( )
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what is an analog signal? A: Analog signal is a continous values B: Analog signal is a discrete values C: Analog signal is sometimes continous,sometimes discrete