Error calibration system and method for laser galvanometer of selective laser melting equipment

The invention provides an error calibration system and method for a laser galvanometer of selective laser melting equipment, and belongs to the field of selective laser melting. The error calibrationsystem comprises a calibration plane plate, a standard grid ruler, a high-precision two-dimensional imaging system and an image data processing module, wherein the high-precision two-dimensional imaging system and the image data processing module extract a standard grid line dot matrix and a cross array center point; and the image data processing module corrects coordinates of the cross center point on the calibration plane plate by utilizing grid point coordinates, then calculates an error between the corrected coordinates Cell-B' and theoretical coordinates, compares the error with an original error compensation file, and makes a new error compensation file. According to the calibration system and method provided by the invention, error calibration can be quickly carried out on the galvanometer on a client site,