[15a-PA1-1~5] 1.6 Ultrasonics

[15a-PA1-1] Improvement in sensitivity of laser ultrasonics using a speckle knife-edge detector

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

Keywords:Laser Ultrasonics, Speckle knife-edge detector, Nondestructive and noncontact detection

We have been studying a laser ultrasonic testing (laser UT) technology with a speckle knife-edge detecor (SKED) in order to apply it to an in-line and full-inspection nondestructive and noncontact flaw detection in industrial parts. In this report, we proposed ways of improving sensitivity of the SKED laser UT system by optimizing optics parameters