Re: Increasing DRO resolution

Paul:

There are "Interpolator" units available that can increase the
resolution of encoders and linear scales.

These are electronic and usually available in 2,5 and 10 times the
encoder resolution.

The catch is that the quadrature signal output of your encoder must
be a sine wave, not a digital output. Most encoders use one or the
other and sometimes both.

The sine wave output can come in a verity of levels, so the
interpolator must match.

Of course the quality of your encoder and mechanical connection must
be appropriate.

One more note: The Output of most of the Interpolators is digital. So
your DRO must accept this.

I have seen 10x setups that were quite accurate.

Tom M.