[9p-W834-1~12] 1.6 Ultrasonics

[9p-W834-8] Detection of internal defects in rough-surfaced samples with laser ultrasonics using a speckle knife-edge detector

〇Yong Lee¹, So Kitazawa¹, Rikesh Patel², Roger Light² (1.Hitachi, Ltd. R&D, 2.Univ. of Nottingham)

Keywords:non-destrcutive and non-contact detection, laser ultrasonics, Speckle knife-edge detector

We have successfully detcted echo signals from a defect inside a rough-surfaced sample using laser ultrasonics with a speckle knife-edge detector.