Electronics > Beginners

oscilloscope display explanation wanted

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txx4488:
time lag between capture and display

ataradov:
I don't think so. It is kind of a pointless parameter. It is going to be on the order of a few ms, under 100 ms, for sure. Unless  you have some hardcore processing enabled and capturing a lot of data.

Why do you even need this?

james_s:
If you want true realtime, get an analog scope, but what do you hope to achieve? Do you think your eyes will be faster than the scope? If you think a delay between the signal being captured and appearing on the screen is a problem then you aren't using the scope correctly.

txx4488:
thanks for clarification !!
 i needed this info for  low cost  analog+digital  DAQ card project.

thank u very much!!

BravoV:
As you mentioned scope with LCD display, that means a DSO.

In DSO its like taking a photo with your digital camera on the signal, and displays it at the LCD, back and forth.

What you see at the scope's screen is the freezed photo, and it gets updated NOT at realtime.

Human reactions is in order of mili seconds, are you expecting your eyes capable of detecting the change in "nano" seconds ?

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