Title :
Wave propagation simulation in coarse grain (attenuative) materials
Author :
Udagawa, Yousuke ; Reim, Guy ; Mihara, Teruyoshi
Abstract :
We introduce velocity dispersion as the attenuation. We used the impulse response to know characteristics of course grain material. We confirmed uni-pole wave like inpulse function generated by broad band transducer with step-function pulser using an Ultrasonic Visualization System. Through coarse grain material, uni-pole wave maintains uni-pole, but the height decreases as the duration increases. We found uni-pole wave area is basically the same.
Keywords :
acoustic transducers; acoustic wave propagation; attenuation; broad band transducer; coarse grain attenuative materials; step-function pulser; ultrasonic visualization system; unipole wave like inpulse function; wave propagation simulation; Acoustics; Attenuation; Barium; Lasers; Transducers; Transmitters; Ultrasonic variables measurement; Binomial; Edge echo; Grain size; Impulse function; Piezoelectric materials; Step function; Uni-pole;
Conference_Titel :
Ultrasonics Symposium (IUS), 2012 IEEE International
Conference_Location :
Dresden
Print_ISBN :
978-1-4673-4561-3
DOI :
10.1109/ULTSYM.2012.0495
