Dave Engvall wrote: > Hi Jon, > I'm in way over my head here but I see a couple of issues. One being > which method will track actual velocity best and the other is > performance of the tach around zero crossing. > It is an interesting problem. ;-) Yes. The digital approach would need no adjustment pots, which is a plus for manufacturing. But, it needs to have minimal delay to sudden changes in velocity, yet not put out big pulses near zero velocity when single encoder pulses come in. A real conundrum.
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