Interesting. What software do you use with that?

On Fri, Jun 1, 2018 at 11:32 AM, Chris Albertson <albertson.ch...@gmail.com>
wrote:

> On Thu, May 31, 2018 at 5:38 PM, Gene Heskett <ghesk...@shentel.net>
> wrote:
>
> > On Thursday 31 May 2018 19:45:24 jeremy youngs wrote:
> >
> > > Encoders in hand, shaft turned and mounted, it looks good, 3 more to
> > > do . encoderawcount.jpg
> > > <https://drive.google.com/file/d/1oHklBMnxpmTGl-ZzVBCtBkDbsFxwydN_/vie
> > >w?usp=drivesdk>
> >
> > That does look pretty good at first glance. I can't read the clocking
> > rate though. Humm, I just found the viewer has a zoom. So I assume you
> > were turning it by hand as the timing shows 2/1 variations on a 10
> > millisecond per grid line, so thats pretty slow. What it looks like at 3
> > to 5k revs will tell the story. But you are not going to get that
> > display at 3 to 5k in halscope. That will need a good scope,
> >
>
> Scopes are good, they will let yu find glitches like housing contacts but
> optical encoders don't have that problem
>
> Last night I was using by cheap $8 logic analyzer.   Those things are good
> for the money I could measure the duty cycle of a  two 10KHz PWM signals
> and the A/B channels for two encoders and
> ...ebay.com/itm/New-USB-Logic-Analyzer-...
> <https://www.ebay.com/itm/New-USB-Logic-Analyzer-Device-Set-
> USB-Cable-24MHz-8CH-24MHz-for-ARM-FPGA-M100/222882469206>
>
> Yes they make better ones but those cost more than $8   This is one good
> for signals that change at up to a few MHz.
>
>
> >
> > --
>
> Chris Albertson
> Redondo Beach, California
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