Optical Linear Scales of image area measurement transformation system

Optical Linear Scales was used on any type of manufacturing machine. The fixed structure was reserved before assemble machine structure. It was complex of design and machining of a manufacturing machine. This research provides a new cerebration of theorem for non-contact image-based distance measuring type. It only fixed a circle plate of given dimensions under non-change the machine structure. As a result, maximal image contour of an unknown working table displacement picture can be obtained so as to achieve measuring results with highest resolution at each time. It is goal and contribution of this paper for function of working table displacement measuring and control of any type manufacturing machine.