CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] sine wave encoder outputs

Posted by dave engvall
on 2000-09-24 09:34:34 UTC
Elliot Burke wrote:

> Does anyone know a way to convert (4 phase)sine wave encoder output to allow
> interpolation of the phases?

I think the usual approach is to count zero crossings and a/d the sine wave , scale it and add to the counts.

This is what Heidenhain (sp). does with some of their encoders.
A post some time ago talked about doing the same thing with optical encoders.

Dave

Discussion Thread

Elliot Burke 2000-09-24 07:44:16 UTC sine wave encoder outputs dave engvall 2000-09-24 09:34:34 UTC Re: [CAD_CAM_EDM_DRO] sine wave encoder outputs Mariss Freimanis 2000-09-24 11:23:11 UTC Re: sine wave encoder outputs Lee & Chris studley 2000-09-24 11:29:50 UTC Re: [CAD_CAM_EDM_DRO] Re: sine wave encoder outputs Jon Elson 2000-09-24 22:06:17 UTC Re: [CAD_CAM_EDM_DRO] sine wave encoder outputs