DocumentCode
2253408
Title
Spectrum Analysis for the Detection of Multiple Cracks Using a Laser Ultrasonic Surface Wave
Author
Park, Seung-Kyu ; Kim, Woon-Ill ; Baik, Sung-Hoon ; Jung, Hyun-Kyu ; Cha, Hyung-Ki ; Cheong, Yong-Moo
Author_Institution
Korea Atomic Energy Res. Inst., Daejeon
fYear
2007
fDate
26-31 Aug. 2007
Firstpage
1
Lastpage
2
Abstract
Detailed information on micro surface cracks in a component is very important to prevent a severe system failure. In this paper, we have investigated the effects of laser surface waves according to the number and the depth of multiple surface cracks. Here, we describe the experimental results to detect multiple surface cracks by using a laser ultrasound.
Keywords
crack detection; measurement by laser beam; microcracks; photoacoustic effect; spectral analysis; surface acoustic waves; surface cracks; ultrasonic materials testing; laser ultrasonic surface wave; microsurface crack detection; multiple crack detection; spectrum analysis; Frequency; Inspection; Optical pulse generation; Optical surface waves; Pulse measurements; Surface cracks; Surface emitting lasers; Surface waves; Ultrasonic imaging; Ultrasonic variables measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
Conference_Location
Seoul
Print_ISBN
978-1-4244-1173-3
Electronic_ISBN
978-1-4244-1174-0
Type
conf
DOI
10.1109/CLEOPR.2007.4391798
Filename
4391798
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