Place of Origin : Fuzhou,China

Incremental circular grating, absolute coder and modulator have been widely used in the field of photoelectric translating systems, including angle displacement sensors and line displacement sensors. They can reach 0.2" angle precision and ±0.2um length precision. Changhui-EO has overcome the unstable error caused by laser length measuring and reached a precision accuracy of 0.1 um during processing high precision gratings, such as the variable-transmission
MTF sinusoidal grating, the variab