Title :
Non-contact Lamb wave tomography using laser-generated ultrasound
Author :
Hutchins, D.A. ; Jansen, D.P. ; Edwards, C.
Author_Institution :
Dept. of Eng. & Phys., Warwick Univ., Coventry, UK
Abstract :
A pulse laser source and an electromagnetic acoustic transducer detector are used to perform ultrasonic Lamb wave experiments in thin aluminium sheets. The Lamb waves generated in these experiments are used for imaging artificial defects using tomographic reconstruction techniques
Keywords :
acoustic imaging; acoustic signal processing; acoustic wave production; aluminium; computerised tomography; image reconstruction; laser beam applications; photoacoustic effect; surface acoustic waves; ultrasonic materials testing; US NDE; artificial defects; electromagnetic acoustic transducer detector; laser-generated ultrasound; noncontact Lamb wave tomography; pulse laser source; thin Al sheets; tomographic reconstruction techniques; ultrasonic Lamb wave; using laser-generated ultrasound; Acoustic imaging; Acoustic pulses; Acoustic signal detection; Acoustic transducers; Aluminum; EMP radiation effects; Electromagnetic scattering; Optical pulses; Tomography; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 1992. Proceedings., IEEE 1992
Conference_Location :
Tucson, AZ
Print_ISBN :
0-7803-0562-0
DOI :
10.1109/ULTSYM.1992.275845
