Incremental optical encoder is a device converting physical data to digital mode. In the motion control systerm, the function of incremental optical encoder is converting angle and position information to digital pulse signal. The A,B,Z 3 channels output in wave form. Direction and speed can be judged from the 3 channels.

Incremental Industrial solid shaft encoder is connected to the motor shaft by means of a solid shaft with the aid of a flexible coupling and an external flange. This type of mounting coaxiality is lower, and the increased coupling and flange require more installation space, often in low resolution and low precision applications. Solid shaft encoder has the features of light weight, compact size, high precision, low price, high quality ,imported bearings and high protection class .The sensor widely applied in light industry such as printing and packaging industry.