Title :
Laser-based ultrasonics for flaw detection
Author :
Huang, Jin ; Nagata, Yasuaki ; Krishnaswamy, Sridhar ; Achenbach, Jan D.
fDate :
Oct. 31 1994-Nov. 3 1994
Abstract :
A laser-based ultrasonic system consisting of a tunable narrowband laser line-array ultrasound generator and a fiber-optic dual-probe heterodyne interferometer is described. Applications of this LBU system to the detection of cracks and for the tomographic imaging of defects in thin plates are presented
Keywords :
acoustic tomography; crack detection; laser beam applications; laser tuning; light interferometers; surface acoustic wave transducers; surface acoustic waves; ultrasonic materials testing; ultrasonic transducer arrays; LBU system; cracks; fiber-optic dual-probe heterodyne interferometer; flaw detection; laser-based ultrasonic system; line-array ultrasound generator; thin plates; tomographic imaging; tunable narrowband laser; Acoustic arrays; Acoustic testing; Acoustic tomography; Crack detection; Laser applications; Laser tuning; Nondestructive testing; Optical interferometry; Plates; Surface acoustic wave transducers; Surface acoustic waves;
Conference_Titel :
Ultrasonics Symposium, 1994. Proceedings., 1994 IEEE
Conference_Location :
Cannes, France
Print_ISBN :
0-7803-2012-3
DOI :
10.1109/ULTSYM.1994.401802
