公开(公告)号：US10309934B2

公开(公告)日：2019-06-04

申请号：US15472449

申请日：2017-03-29

申请人： Cécile Brütt ,  Guillaume Painchaud-April ,  Chi-Hang Kwan ,  Benoit Lepage

发明人： Cécile Brütt ,  Guillaume Painchaud-April ,  Chi-Hang Kwan ,  Benoit Lepage

IPC分类号： G01N29/26 ,  G01N29/30 ,  G01N29/06 ,  G01N29/07

摘要： Disclosed is an ultrasonic non-destructive testing and inspection system and method for determining acoustic velocities in a test object. Beams of acoustic energy from firing an element of an emitting probe propagate in a first wedge, and a beam incident at the critical angle generates a surface wave in the test object. The surface wave propagates to a second wedge and signals are received at receiving elements of a receiving probe array. When a set of appropriate delays is applied to the receiving elements, the acoustic time-of-flight is the same to all receiving elements. Determination of the appropriate delays and the times-of-flight for P-type surface waves and Rayleigh surface waves enables computation of the P- and S-wave acoustic velocities in the test object. The time-of-flight measurement also enables computation of the separation between the first and second wedges.

公开(公告)号：US20180284069A1

公开(公告)日：2018-10-04

申请号：US15472449

申请日：2017-03-29

申请人： Cécile BRÜTT ,  Guillaume Painchaud-April ,  Chi-Hang Kwan ,  Benoit Lepage

发明人： Cécile BRÜTT ,  Guillaume Painchaud-April ,  Chi-Hang Kwan ,  Benoit Lepage

IPC分类号： G01N29/07 ,  G01N29/26

CPC分类号： G01N29/07 ,  G01N29/0645 ,  G01N29/262 ,  G01N29/30 ,  G01N2291/011 ,  G01N2291/0423 ,  G01N2291/102

摘要： Disclosed is an ultrasonic non-destructive testing and inspection system and method for determining acoustic velocities in a test object. Beams of acoustic energy from firing an element of an emitting probe propagate in a first wedge, and a beam incident at the critical angle generates a surface wave in the test object. The surface wave propagates to a second wedge and signals are received at receiving elements of a receiving probe array. When a set of appropriate delays is applied to the receiving elements, the acoustic time-of-flight is the same to all receiving elements. Determination of the appropriate delays and the times-of-flight for P-type surface waves and Rayleigh surface waves enables computation of the P- and S-wave acoustic velocities in the test object. The time-of-flight measurement also enables computation of the separation between the first and second wedges.