Products > Test Equipment
New Scope Demoboard from Batronix
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RAPo:
Is there a kind of flowchart that, based on a description of the signal characteristics, gives you a step-by-step procedure for selecting and setting up a trigger(type)?

For instance, I have a 100kHz ramp signal with an anomaly: once in a while (not constant), the signal goes away for some time and starts again. I would like to know the "blackout" period.
What are the steps to set up the scope and answer my question?
Grandchuck:
Persistence ON and OFF.
pdenisowski:

--- Quote from: RAPo on March 21, 2024, 01:50:56 pm ---Is there a kind of flowchart that, based on a description of the signal characteristics, gives you a step-by-step procedure for selecting and setting up a trigger(type)?

For instance, I have a 100kHz ramp signal with an anomaly: once in a while (not constant), the signal goes away for some time and starts again. I would like to know the "blackout" period.
What are the steps to set up the scope and answer my question?

--- End quote ---

Sounds like a timeout trigger:  the scope should be configured to trigger when the signal level is < X volts for more than Y seconds. Assuming that the time/div is set properly, you should be able to acquire the entire "blackout" period and measure the time using markers.  Since the scope will trigger when the ramp resumes, you might also want to apply a trigger offset so that the ramp restart is near the right edge of the screen.

If you have (or would like to see this on) a R&S MXO oscilloscope, I'd be happy to set it up and post a short video.

(There are other ways of doing this, but that's the first that comes to mind).
ebastler:

--- Quote from: Grandchuck on March 21, 2024, 02:36:47 pm ---Persistence ON and OFF.

--- End quote ---

The glitches produced by the demo board are still pretty frequent; so I would say the non-persistent view actually gives a better idea in this case that it is indeed a glitch. But if the glitches are rarer, they might only pop up occasionally if you set a short or no persistence time, and could be easily overlooked.

Have you tried colour grading? I find that it nicely highlights the rare events in a different color, and does not render them as dimly as intensity grading does in some situations.
Grandchuck:
Color grading and persistence.
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