公开(公告)号：US11029286B2

公开(公告)日：2021-06-08

申请号：US16467376

申请日：2017-07-03

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Renke Kang ,  Zhigang Dong ,  Xianglong Zhu ,  Yidan Wang ,  Xun Zhang ,  Ping Zhou ,  Zhenyuan Jia

IPC: G01N29/12 ,  G01N27/00 ,  G01N29/22 ,  G01H9/00

Abstract: An ultrasonic cutter detection method and device, the method comprises the following steps: preliminary detection: frequency amplitude detection and fall-of-potential detection, if the ultrasonic cutter fails the above two detection solutions in the preliminary detection, repeating the two detections; if the ultrasonic cutter still fails the above two detection solutions, the ultrasonic cutter is judged to be unqualified; and reinspection: free modal detection and pressure modal detection. Using differences of the ultrasonic cutters surface in micro-crack directions that result in different degrees of sensitivity of crack to different ultrasonic vibration modes, combined with the fall-of-potential method and frequency amplitude detection method, a detection rate and a detection velocity of an unqualified ultrasonic cutter can be improved.