What is a Rotary Encoder?
Rotary or Rotary Encoder An encoder is a type of encoder, also called an encoder shaft, an electromechanical device for converting an angular position or moving a shaft or axis into a digital or analog code.
Rotary encoders are divided into two main types:

Absolute Rotary Encoders
Incremental Rotary Encoders

Technical specifications of Rotary Encoder

Rotary Encoder or Shaft Encoder, an electromechanical device that converts the angular position or motion of a shaft or shaft into a digital or analog code. There are two main types of rotary encoders called Absolute Rotary Encoders and Incremental Rotary Encoders.

The Absolute encoder rotary output shows the position of the shaft at the same time.

The Rotary Output of the Incremental Encoder gives us information about the movement of the shaft, which elsewhere is converted into information such as speed, distance and position.

Rotary encoders are used in a variety of applications that require very precise shaft rotation. Applications such as: industrial control, robotics, special purpose photographic lenses, computer input equipment such as mechanical optical mice, and rotating radar platforms.