Title :
Inclusion sizing by ultrasonic reconstruction using mode-converted Rayleigh wave
Author :
Dong-Man Suh ; Whan-woo Kim ; Jin-Gyun Chung ; In-Soo Koo
Author_Institution :
Kunjang Coll., Kunsan, South Korea
Abstract :
Recently, ultrasonic reconstruction by the mode-converted Rayleigh wave was presented, where Rayleigh waves traveling along the surface of strong scatterers are used for reconstruction of inclusions with pitch-catch method. In practice, the measured Rayleigh wave is contaminated by noise that is induced by random inhomogeneity in the medium. In this work, we first investigate the Rayleigh wave reconstruction technique for inclusion sizing. Then we propose the image reconstruction technique using Rayleigh wave and deconvolution such as Born inversion.
Keywords :
Rayleigh waves; acoustic signal processing; crack detection; deconvolution; image reconstruction; inverse problems; ultrasonic imaging; ultrasonic materials testing; Born inversion; crack sizing; deconvolution; image reconstruction technique; inclusion sizing; mode-converted Rayleigh wave; noise contamination; pitch-catch method; random inhomogeneity; small aperture transducers; strong scatterer surfaces; ultrasonic reconstruction; Acoustic reflection; Deconvolution; Image reconstruction; Network address translation; Optical reflection; Surface cracks; Surface reconstruction; Testing; Ultrasonic imaging; Ultrasonic transducers;
Conference_Titel :
Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE
Conference_Location :
Caesars Tahoe, NV
Print_ISBN :
0-7803-5722-1
DOI :
10.1109/ULTSYM.1999.849528