The SJ2028 highly intelligent indicator fully automatic calibration instrument adopts imported high-precision grating measurement system, precise grating displacement measurement and control technology, long-life precision patented guide rail, imported motor control system, fully automatic focusing camera, patented non reflective light source, high-resolution CCD, color large screen LCD display and touch system, and the latest digital image processing technology to achieve fully automatic and high-precision calibration of the indicator. Using computer-controlled motors to accurately drive grating displacement, without the need for manual rotation of handwheels or differential cylinders; Using calibration software to automatically collect current data without the need for manual sampling; Using CCD to simulate human eye reading of the dial and automatic recognition, without the need for human observation or manual reading; At the same time as improving the verification speed, it fully liberates physical and mental energy. The verification process adopts artificial intelligence methods. The operator only needs to install the indicator table, select the type, division value, range and other parameters of the table on the verification software, click the start verification button, and the verification instrument will immediately drive the indicator table to perform verification according to the regulations. After the verification is completed, the verification record and results (including the data list of each point, forward and reverse error curves, and whether various indication errors are qualified and qualified levels, etc.) will be quickly printed out. Its calibration speed is more than twice as fast as other fully automatic calibration instruments for indicators in China.