Does Adjusting Oscilloscope Controls Alter the Input Signal?

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SUMMARY

Adjusting the controls of an oscilloscope does not alter the characteristics of the input signal being evaluated. The oscilloscope functions as a display tool, where the electron beam in the cathode ray tube is deflected by the varying electrical charges from the input signal. This means that the oscilloscope merely visualizes the input signal without modifying it. The discussion confirms that the manipulation of controls affects the display but not the actual signal itself.

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Does manipulating the controls of an oscilloscope change the characteristics of the input signal being evaluated?

Can someone please explain this to me?

Thank you.
 
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Skye77 said:
Does manipulating the controls of an oscilloscope change the characteristics of the input signal being evaluated?

Can someone please explain this to me?

Thank you.
An oscilloscope is a tool for examining the signal. The electron beam in the oscilloscope's cathode ray tube is deflected by the varying electrical charges on the plates situated around the beam. These varying electrical charges are supplied by the signal. So the oscilloscope simply displays the effect of the input signal on the electron beam (as seen in the trace on the screen). It does not change the signal.

AM
 

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