Re: [CAD_CAM_EDM_DRO] Re: Sinosidal Encoder signals to TTL signals converter

beerexalan wrote:

>Has anyone looked at Analog Devices AD2S1200 for this? It takes sin
>cos data and emulates encoder.
>
>

No, it doesn't. The AD processors for resolver/inductosyn sensors
require AC excitation of the driving coil, and picking up AC signals from
the sensing coils. These signals vary in sin/cos amplitude fashion, but
are basically
AC signals that are either in phase or 180 degrees out of phase with the
exiting signal. I suspect that it would be possible to convert the optical
encoder signals to those that the 2S1200 could take, but it would require
a fair bit of external circuitry. If the zero crossing point for the
encoder's
signals could be accurately set, it would improve the encoder resolution
by a factor of, I think, 4096 times.

>
>

Jon