[17p-C43-1~17] 1.6 Ultrasonics

2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)

[17p-C43-6] Study of material identification with laser ultrasonic technology and laser-induced breakdown spectroscopy (2)

〇Yong Lee¹, So Kitazawa¹ (1.Hitachi,Ltd. R&D Gr.)

Keywords:

Laser ultrasonic technology,Surface displacement,Optical fiber transmission

We have studied material identification with laser ultrasonic technology (LUT) and laser-induced breakdown spectroscopy.The LUT was used in order to evaluate a surface displacement for the compound materials. The experimental results shows a negative correlation between a recovery time of the displacement and hardness (Young’s modulus). Furthermore, we developed all-fiber-type LUT system which is indispensable for a remote measurement.