Electronics > Beginners
oscilloscope display explanation wanted
(1/4) > >>
txx4488:
Can someone explain me how does a high speed signal is displayed in low  refresh rate of LCD  in modern oscilloscope ?
ataradov:
The signal is captured in the memory and then shown on the display. There are gaps between captures. That's why you get a characteristic like waveforms/second.
xrunner:

--- Quote from: txx4488 on December 12, 2018, 01:45:22 am ---Can someone explain me how does a high speed signal is displayed in low  refresh rate of LCD  in modern oscilloscope ?

--- End quote ---

Not quite sure exactly what you mean, but if it's set to trigger on the "high speed" signal, it's just going to display a snapshot on the screen. All the processing makes this possible given a certain bandwidth specification of the scope. If it's not triggered and the horizontal time/div is not set right, then it will look like a mess.

Maybe if that is not the answer you are looking for someone else will be along to assist you better.  :)

Edit: Oh Ataradov got to it first.
txx4488:
So what might be the time delay between signal captured and signal displayed on lcd ?

 
ataradov:

--- Quote from: txx4488 on December 12, 2018, 02:02:43 am ---So what might be the time delay between signal captured and signal displayed on lcd ?

--- End quote ---
Much faster than your eyes reaction time. But it also depends on your time scale. You can set 10 sec/div and see the signal with your eyes in real time.
Navigation
Message Index
Next page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod