Many motors offer a quadrature encoder that give feedback on whether, and in which direction, the motor shaft is moving. But if you’re clever about analyzing the data you can use a quadrature ...

Disassembling the mouse you can get two optical encoders plus four infrared emitter/detector pairs. Then you can reassemble your new sensors into a quadrature incremental optical encoder.

The CAM622 is a resonant inductive encoder IC for the measurement of angular position inside machines. It delivers an unparalleled combination of precision, speed and convenience, and helps customers ...

Optical encoder disks and strips ... return position information to a circuit. Rotary encoder disks and strips may incorporate several different patterns made by printing or cutting alternating dark ...