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.
|Original language||English (US)|
|Number of pages||5|
|Journal||Proceedings of the IEEE Ultrasonics Symposium|
|State||Published - Dec 1 1994|
ASJC Scopus subject areas