Looking for lower cost incremental encoder

T
If the max diameter where the sensor can be located is 7", then the circumference at that point is 22", and at 1024 pulses per rev, the reflector stripe (I see a alternating pattern of reflector and dark stripes) would be 0.021", which I believe would require a laser to detect don't you think? So for a normal optical tx and rx pair, maybe 0.1 resolution could be achieved which would require maybe 5 sensors, and a reflector stripe width of 0.1".... right?

I do like the one side assembly idea...that is the right way to go...

Tim
 
C
Speed might be another factor, some of the optical assemblies aren't optimized for high speed. 6000 rpm = 100Hz. You might check into the sensors used for optical mice. Volume makes the price reasonable and they may be adaptable for the purpose.

Regards
cww
 
Top