Method for verifying and correcting characteristic parameters of grooved filter stick detected by optical cross section measuring instrument

The invention discloses a method for verifying and correcting characteristic parameters of a grooved filter stick detected by an optical section measuring instrument, which comprises the following steps of: S1, making a set of verification pictures by using CAD (Computer Aided Design) software, the verification pictures comprising a standard circular section drawing A, a standard groove section drawing B, a section drawing C with a small groove and a section drawing D with a special-shaped groove; s2, respectively detecting the standard circular cross-sectional view A, the standard groove cross-sectional view B, the cross-sectional view C with the small grooves and the cross-sectional view D with the special-shaped grooves by using an optical cross-section measuring instrument, recording respective detection values, and transmitting the detection values into a storage unit; and S3, the verification unit obtains detection values of the standard circular cross-sectional view A, the standard groove cross-section