The structural property,operating principle,correcting principle for phase vector and software programming of GBJ280 high precision (0.5″~1″) absolute photoelectric shaft encoder used for EOMS630 photoelectric theodolite,TV and IR digital photoelectric theodolite (R 302T) and 863 2 precision rotary platform are introduced.
In this paper the structure,operating principle,the design of hardware circuit and the feature software of the 24-bit photoelectric shaft encoder are expounded systematically.
With the development at full speed of science and technology, and the precision to the photoelectric angle encoder requires higher and higher, but the precision of the photoelectric angle encoder is decided by quality of More signal mainly.