Method for judging consistency of pole pieces and verification method

The invention provides a method for judging the consistency of pole pieces and a verification method, and the method comprises the steps: at least three measurement groups are selected on the pole pieces, the distance between each measurement group and a pole lug of the pole piece is greater than a preset distance, each measurement group comprises at least three measurement points, and the distances between the measurement points are equal; performing linear fitting according to the first impedance values of all the measurement points in each measurement group to generate a fitting straight line corresponding to each measurement group; obtaining a second impedance value corresponding to each measurement group according to the fitting straight line corresponding to each measurement group; obtaining a difference value between every two second impedance values according to the second impedance value corresponding to each measurement group; and judging the consistency of the pole pieces according to the differenc