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Originally Posted by lori558
the photoswitch didn't pick up the 1 stripe at high RPMs. So we switch and put a piece of tape that covers the gap between 1 spoke to another. So it is a thick stripe...
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OK, that is what I was concerned about. That photosensor isn't exactly a speed demon. It needs a wide stripe. The wider the better (up to 180 degrees of arc, no more).
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Currently it is set up according to a tachometer: 
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Yes, that's the "period" method (method2) that I was talking about in my previous post.
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Ether:
With a low count-per-rev sensor, you want to use the 2nd method, not the first.
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How exactly do I go about programming that?
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If you're using
this, you're already doing it.
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The code thus far is attached!
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The code doesn't look right to me, but I'm not a LabVIEW guru. It looks like you are converting the period to rpm, then subtracting the previous rpm value from it, then comparing it to a period. Bill or Mark, can you please jump in here and help him?
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