Imaging of defects in thin plate by scanning of laser-generated focused-lamb waves

Key Engineering Materials

Volumn 270-273, Issue III, 2004, Pages 1785-1790

  Jhang, Kyung Young ^a   Jung, Jee Hong ^a   Kim, Hong Joon ^a   Hyeon, Min Kwan ^a  

^a Hanyang University   (South Korea)

Author keywords

Arc Array; Focusing; Imaging; Lamb Wave; Laser Ultrasonics; Scanning

Indexed keywords

BANDWIDTH; DEFECTS; IMAGING SYSTEMS; LASER PULSES; NEODYMIUM LASERS; OPTICAL RESOLVING POWER; SCANNING; SIGNAL TO NOISE RATIO;

ARC ARRAYS; FOCAL POINT; LAMB WAVES; LASER ULTRASONICS;

ULTRASONICS;

EID: 8644225757     PISSN: 10139826     EISSN: 16629795     Source Type: Book Series    
DOI: None     Document Type: Conference Paper

References (5)

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2. B. Knight, "Laser-Ultrasonic Charaterization of Electrodeposited Chromium Coatings", Review of Progress in Quantitative Nondestructive Evaluation, Vol. 18 (1999), p. 365-372.
3. S.G. Pierce, B. Culshaw, W.R. Philp, F.Lecuyer and R. Farlow, "Broadband Lamb wave measurements in aluminium and carbon-glass fibre reinforced composite materials using noncontacting laser generation and detection", Ultrasonics, Vol. 35 (1997), p 105-114.
4. Y. Hayashi, S. Ogawa, H. Cho and M. Takemoto, "Non-contact estimation of thickness and elastic properties of matallinc foils by the wavelet transform of laser-generated lamb waves" NDT&E International, Vol. 32 (1999), p 21-27.
5. D. P. Jansen, D. A. Hutchins and R. P. Young, "Ultrasonic tomography using scanned contact transducers", Acoustical Society of America, Vol. 93, No. 6 (1993), p. 32-42.