Absolute Encoder

Absolute rotary optical encoder, because its every position absolutely unique , anti-interference, absolutely no power lost memories, is already more and more widely used in various industrial angle, length measuring and position control.

There are a lot of lines on the optical disk of the absolute encoder, each of which is followed by two lines, four lines, eight lines and sixteen lines and so on.  in every position of encoder, by reading each groove and the dark, gets a set of zero power from 2 to 2 n - 1 to the power of the only two hexadecimal code (gray code), it is called a n bit absolute encoder. Such encoder is determined by the mechanical position of the code disk, and it is not affected by power failure or interference. Absolute encoder is determined by mechanical position of the uniqueness of each position, it does not need memory and doesn’t need to find a reference point, and doesn't have to count all the time, whenever you need to know the position, whenever go to read its position. In this way, the anti-interference characteristics and the reliability of data of the encoder are greatly improved.