On 21 August 2010 18:21, Jon Elson <el...@pico-systems.com> wrote: > OK, this is the type of scale used with an interpolator. It needs to > measure the analog voltage of the two sine quadrature signals and then > solve the equation to figure out the position on a circle the arcsin and > arccos work out to.
I think my previously-linked Arduino setup would do that (but without any extra hardware). A standard one has 6 analogue inputs which is enough for three axes. Modifying the code to not run the function generator might give a faster update rate, and there is probably no need to keep the acquisitions synchronous with the excitation (I am assuming that these scales don't need an excitation signal?) But it should just work as-is with no modifications. -- atp ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
