公开(公告)号：EP4439059A1

公开(公告)日：2024-10-02

申请号：EP24154697.7

申请日：2024-01-30

申请人： The Boeing Company

发明人： Dubois, Marc ,  Bingham, Jill P.

IPC分类号： G01N29/24 ,  G01N21/17

CPC分类号： G01N29/2418 ,  G01N2291/023120130101 ,  G01N2291/269420130101 ,  G01N29/265 ,  G01N2291/10620130101

摘要： The present disclosure provides for a multiple channel laser ultrasonic system using a single detection laser and a single generation laser for inspecting internal structures. An example system includes a laser generator configured to emit generation laser light, a laser detector configured to emit detection laser light, and a scanning apparatus. The scanning apparatus is configured to receive the generation laser light and the detection laser light, direct the generation laser light and the detection laser light onto a surface of a structure via a plurality of laser ultrasonic channels, and collect reflections of the detection laser light from the surface of the structure via the plurality of laser ultrasonic channels. The system also includes a controller configured to characterize an internal feature of the structure based on the reflections.