Re: [CAD_CAM_EDM_DRO] quadrature endcoder woes?

ew!!
turn your head the other way and you'll avoid seeing
it too...
that looks horrible!!!
and the trace shows those spikes are upfucking the
output badly.
i can see how dirt could very likely be the culprit,
as suggested. cuz they spikes appear very clean to be
electrical noise.

if you log an entire revolution and the spikes appear
in the same places - it's optical almost certainly.


--- Jon Elson <elson@...> wrote:

> Aaron wrote:
>
> >I just installed a US Digital encoder
> (E4P-300-250-T) on a motor. It
> >was a royal pain as the centering tool was pretty
> tight on the motor
> >shaft and then the centering tool was quite tight
> on the PCB when I
> >pressed it into place.
> >
> >With my motor running at a constant 1 rpm, I get
> the following scope trace:
> >http://www.bright.net/~agarb/quad.jpg
> >
> >
> Your scope is set for 1/10th of a second per
> division. Set it for a much
> faster sweep rate, and you will likely see a more
> reasonable trace.
>
> Jon
>
>
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