Grating chi is with full -automatic displacement measurement circuit

The utility model discloses a grating chi is with full -automatic displacement measurement circuit, including the controller and with the user side of controller communication, the input termination of controller have power module, with the photoelectric sensing formula seeks that the limit ware meets seek limit ware signal acquisition circuit with be used for right the looks circuit is distinguished in signal segmentation that the reading head signal goes on gathering, and the output termination of controller has X axle motor driver, Y axle motor driver and a display circuit, and X axle motor driver's output termination is useful in the drive the reading head is along X axle gliding X axle motor, and Y axle motor driver's output termination is useful in the drive limit ware along the gliding Y axle motor of Y axle is sought to the photoelectric sensing formula. The utility model has the advantages of simple structure and reasonable design, the object length that can focus automatically on the bars chi platfo