Quote:
Originally Posted by bobson
Bojan,
I assume one tick is clear window in this see through plastic wheel on the outer edge or one black line. Either way I don't think I would be able to count them as they are tiny and there are some many of them. I would have to magnify it to be able to count them  There would be close to 500 if not more...
And no, I don't have two of them but considering the price of printer/scanner combo they are way cheaper than buying encoders.
bob |
With Ek box, if you have 500 spaces on the wheel, you will have 2000 ticks per rev if this encoder is coupled directly on the shaft.
So you probably need gearbox 1:5 to increase this to 10000 per 360°, and you may need even more.
Or try to use timing belt and teethed pulleys for coupling.
You definitely need to know how many spaces you have on the wheel, otherwise you will not be able to set the resolution parameter right, so you need to count them somehow.
And do not forget, you will need two sensors per wheel, to be able to detect the direction of rotation.