| Electronics > Beginners |
| Setting a scope scale |
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| bitman:
Thanks to Eevblog I've gotten a lot of valuable information from using my basic scope. I keep finding new features, but there's one feature/issue I cannot seem to resolve. Let's say I have a measuring point where I want to see changes in the millivolts in the 24v range. Meaning, the signal averages 24v but there's fluctuations and I want to "zoom in" on those. I can set the Y scale to let's say 5v but that doesn't really allow me the granularity and I'll see mainly a straight line. If I set the Y axis to .5V - the line goes WAY off and finding it may or may not be possible with the "adjust zero" option on the Y axis. How do you get the granularity of changes if it's not close to the 0v line? Is there a trick here, or do you just turn the know 100 times until you get there? If it's relevant, my scope is a Rigol DS1054Z. |
| nugglix:
See one of Alans great videos: Hope that helps! |
| jcw0752:
Set your input to AC and turn the Vertical Scale down to the level you want to see. The trace will center and only display signal fluctuations from the average DC voltage. John |
| bitman:
Absolutely! Learned something new - offsets :D |
| drussell:
--- Quote from: jcw0752 on August 08, 2018, 05:21:14 am ---Set your input to AC and turn the Vertical Scale down to the level you want to see. The trace will center and only display signal fluctuations from the average DC voltage. --- End quote --- That only works if you don't care about the DC level itself. The advantages and disadvantages are explained well in the video linked above. |
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