What Does Incremental Rotary Encoder Mean?
An incremental rotary encoder is a type of electromechanical device that converts the angular motion or position of a rotary shaft into analog or digital code that represents that motion or position. It can be used for motor speed and position feedback applications that include a servo control loop and for light- to heavy-duty industrial applications.
Techopedia Explains Incremental Rotary Encoder
An incremental rotary encoder provides great speed and distance feedback. It is simpler than the other type of rotary encoder, the absolute rotary encoder, and features fewer sensors, making it less expensive with fewer points of failure. However, an incremental encoder can only provide motion change information, as it can only provide cyclical outputs when the shaft with the encoder is rotated, so a reference device is required in order to calculate the motion.
