Encoders are special sensors that capture position information and relay that data to other devices. They are used to determine the position, velocity and direction of a motor shaft or other mechanical motion. They provide information required for the precise control of a variety of applications, such as positioning a rotary table, pick and place, machine assembly, packaging, robotics and more.
By Joe Kimbrell
Encoders determine position using one of three technologies: optical, magnetic or capacitive.
The most accurate of the standard styles of encoders are the optical encoders. When choosing an optical encoder, it’s important that the encoder