When should I use an encoder to generate speed and count as opposed to a dual proximity sensor application?
Encoders generally provide many more counts per revolution than a proximity or Hall Effect sensor configuration. For precise applications where line payout and speed are critical, encoders provide an excellent solution. Mounting the encoder is more complicated, as most encoders are not sealed and require an additional j-box or gear box. Care should be taken to keep the load away from the shaft of the encoder.
