Author Topic: Waveform speed - does anyone use a small frequency counter?  (Read 2874 times)

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Offline alank2

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Waveform speed - does anyone use a small frequency counter?
« on: November 04, 2014, 02:49:18 am »
Hi,

I've seen a lot of posts where people hookup a second scope or frequency counter to the trigger out on their scope to see the waveform speed.  Has anyone found a small cheap counter that you could just leave plugged in?  Why they don't just show this on the display I don't know.  It seems one could easily make a small one that you could plug into the scope USB for power...

Do you need to know the wfm/s when using it?  Probably not, but it might be nice to know...

Thanks,

Alan
 

Offline Alex Eisenhut

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Offline alank2

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Re: Waveform speed - does anyone use a small frequency counter?
« Reply #2 on: November 04, 2014, 03:21:08 am »
I saw some of those, but this would need to be 1 Hz to 200 kHz (to 1 mHz)...
 

Offline Alex Eisenhut

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Re: Waveform speed - does anyone use a small frequency counter?
« Reply #3 on: November 04, 2014, 03:28:58 am »
I saw some of those, but this would need to be 1 Hz to 200 kHz (to 1 mHz)...

Ah, well that's another thing. No idea.
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Offline Vgkid

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Offline alank2

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Re: Waveform speed - does anyone use a small frequency counter?
« Reply #6 on: November 04, 2014, 01:12:16 pm »
Maybe I should make one as a for fun project.  I am thinking of something tiny that could be put next to or even perhaps under a scope.  Maybe a 0.36" LED or even a bubble display like this:

https://www.sparkfun.com/products/12710
 


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