Weight calibration method

The invention provides a weight calibration method. The weight calibration method comprises the following steps: adopting a standard scale pan, a calibrated scale pan and a scale pan to be calibrated; detecting the standard scale pan, the calibrated scale pan and the scale pan to be calibrated so as to obtain a set of mass difference values of scale pans; obtaining a set of mass modification values of the scale pans by adopting a calculation manner of mass modification values in the measurement mode of a combination comparison method; setting standard weights and the standard scale pan as standard components, setting calibrated weights and the calibrated scale pan as calibrated components, and setting weights to be calibrated and the scale pan to be calibrated as components to be calibrated; detecting the mass of the standard components, the calibrated components and the components to be calibrated so as to obtain a set of mass difference values of the components; performing calculation so as to obtain the mass modification values of the weights to be calibrated according to the mass modification values of the scale pans and the mass difference values of the components based on calculation rules, so that a plurality of mass calibration results corresponding to the weights to be calibrated are obtained.