What Is a Rotary Encoder?
A rotary encoder, also referred to as a shaft encoder, is a sensor that generates an electrical signal in response to a rotational movement. This signal is used to determine or control the speed or position of a mechanical device. A rotary encoder is mounted on a cylindrical shaft and is often used in combination with mechanical conversion devices, such as linear slides and rack and pinions, to measure linear movement. Rotary encoders are used on a wide variety of precision equipment that requires close control of position or speed, including medical devices, robotics, assembly machines, and testing equipment, among others.
