Rotary Encoder Collars
 

Upon skimming through the Mechanical Engineering magazine I got in the mail today, I found these:



I think they would be great for use inside a transmission or outside on wheel axles.

http://www.staffordmfg.com/pages/rotary_stock.htm

http://www.staffordmfg.com/pdfs/rotary_endcoder.pdf

Would a Hall Effect Sensor work, similar to the ones we got in the KOP?
http://en.wikipedia.org/wiki/Hall_ef...tation_sensing

If not, what kind of electromagnetic sensor will work?

Re: Rotary Encoder Collars
 

Yes. A hall effect sensor is what these are designed to be used with.