公开(公告)号：US11204291B2

公开(公告)日：2021-12-21

申请号：US16172342

申请日：2018-10-26

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Qingchao Sun ,  Bo Yuan ,  Wei Sun ,  Weiqiang Huang

IPC: G01L1/25 ,  G01N3/12 ,  G01N29/265 ,  G01N29/44 ,  G01N3/42 ,  G01N3/08 ,  G01N29/04 ,  G01N29/28

Abstract: The present invention discloses an interface ultrasonic reflectivity-pressure relation curve establishment method and a loading testbed. The loading testbed comprises a force displayer, a control terminal, an oscilloscope, an immersion ultrasonic transducer, a large cylinder, a small cylinder, an upper panel, a movable plate, a force sensor, a lower panel, an ultrasonic transceiver and a small cylinder connecting plate. Compared with the existing schemes, the interface ultrasonic reflectivity-pressure relation curve establishment method and the loading testbed provided by the present invention can construct a more accurate ultrasonic reflectivity-pressure relation curve, and are high in detection precision.