Quote:
Originally Posted by Bendito
We are considering getting better resolution by breaking it up into 4 or 8 equally dispersed chunks, in which case "CountsPerRev" would be increased to this number when we read "Period(sec)" from the CounterGet VI.
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3800 rpm = 63.33 revs/sec = 15.8 ms/ rev.
If you are running your speed control loop at 20ms, you'll get a fresh reading every iteration.
And, there's an advantage of using only one piece of tape: there is no noise due to tape positioning tolerance since you are always reading the same edge.