Laser ultrasonic inspection in ablation regime
http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6928234&tag=1
Laser ultrasonic inspection in ablation regime
This article presents a laser-based ultrasonic technique (LBUT) in ablation regime for inspection of internal defects using the pulsed high-power laser (HPL) and two wave mixing (TWM) detector. Pulsed HPL source has been recognized as a good ultrasonic generator to overcome weakness of the conventional contact transducer in harsh environment such as high temperature and rough surface of measurement target. And TWM detecting as non-contact method was used to measure the displacement by laser ultrasonic wave. The aim of this study is to investigate transmission characteristics of laser ultrasonic to various internal defects by the fully non-contact LBUT. Experimental results for various artificial internal defects showed the usefulness of the LBUT in ablation regime in nondestructive testing (NDT) field.
Published in:
Nondestructive Evaluation/Testing (FENDT), 2014 IEEE Far East Forum on
Date of Conference:
20-23 June 2014
- Page(s):
- 66 - 68
- Print ISBN:
- 978-1-4799-4731-7
- INSPEC Accession Number:
- 14694458
- Conference Location :
- Chengdu
- DOI:
- 10.1109/FENDT.2014.6928234
- Publisher:
- IEEE
- 한국도로공사 교통데이터 공모전 - 대한교통학회 회장상 수상 (김진수)
- 한국ITS학회 - 우수논문상
- 비파괴검사학회지 우수 논문상 (김정석, 남태형, 최성호, 장경영)
- 비파괴검사학회지 - 우수논문상
- 비파괴검사학회지 - 우수 논문상
- 대한기계학회 - 우수 학생 논문상
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- JMST - JMST Contribution Award