I have started looking at the scales that came with the mill we are working on - I had figured that the where some version of a linear resolver... bit it isn't 1 coil in - 2 out for sin/cos. The way I understand it - the send a 250hz square wave to the outside of each coil. the 2 centertaps are summed together to get the position. (I assume the output of the centertap is the reletive postion comparing it to the input square wave. I was thinking that maybe something like JonE resolver to quadature converter would work - but I am not sure now... We could always resorect the old circuits.. :) but I would rather not.
each of the 4 coils measure 114ohms This is the circuit that sent the square wave to the head and summed the centertaps. http://electronicsam.com/images/KandT/conversion/accupinscirc.jpg this is what the head reads... http://electronicsam.com/images/KandT/conversion/accupins.JPG thanks again sam ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
