| 摘要 |
PROBLEM TO BE SOLVED: To provide an improved ultrasonic inspection system and method for inspection through a curved surface in a same level with inspection sensitivity through a flat incident surface. SOLUTION: The ultrasonic inspection system 10 includes an apparatus 12 having a support structure 13 for supporting a selected transducer 20 and a selected acoustic mirror 18 adapted for immersion in a coupling fluid 40. The total inspection path distance for the ultrasonic radiation includes a first portion defined by the transducer-to-mirror distance, and a second portion including the mirror-to-object distance. The first and second portions may be relatively adjusted within a constant total inspection path distance to focus the ultrasonic radiation at a desired subsurface depth. Selection of the transducer 20 is at least partly dependent on subsurface depth of the desired inspection zone. Selection of the acoustic mirror is at least partly dependent on the selected transducer 20, the total inspection path distance, and curvature of the incident surface 26 of the inspection object 24. COPYRIGHT: (C)2008,JPO&INPIT |
