Question about encoders and degree measurements?

[Ether]

Originally Posted by NHoffmann

Our team needs to use encoders to get degree measurements out of a wheel. Only problem is, the encoders are mounted on the motor, and we cannot re-mount them anywhere else. The gear ratio is 1 motor rotation is 1.2 wheel rotations, and 497 encoder pulses is 1 motor revolution. How would we go about getting the wheel degree measurements from the encoder on the motor?

1 motor rev per 497 encoder pulses
times
1.2 wheel revs per motor rev
times
360 degrees per wheel rev

(1/497)*(1.2/1)*(360/1) = 0.869 degrees per encoder pulse