For each encoder position, there is a different binary output -- shaft position is absolutely determined. Tracks on absolute encoders often are arranged to produce a binary output called Gray code.

The disc produces Gray code output—a binary numeral system for which (unlike straight binary) successive values differ by one bit. Taking absolute tracking further, multiturn optical encoders ...

The rotary encoders are crucial components of many precision control systems and using gray codes in such systems helps ensure accurate positional data. Hence, it is imperative to efficiently convert ...