Title :
Measurement model for attenuation of leaky surface acoustic waves by the line-focus-beam ultrasonic material characterization system
Author :
Kushibiki, Jun-ichi ; Arakawa, Mototaka ; Yoshida, Sho ; Otsu, Kenji
Author_Institution :
Dept. of Electr. Eng., Tohoku Univ., Sendai
Abstract :
We experimentally and theoretically studied an exact measurement model for attenuation of leaky surface acoustic waves (LSAWs) using the line-focus-beam ultrasonic-material-characterization (LFB-UMC) system. We measured the LSAW propagation characteristics (viz., phase velocity and attenuation) for two specimens of synthetic silica (SiO2) glass and borosilicate (Pyrex) glass at 225 MHz. We detected acoustic loss of LSAWs due to the acoustic absorption effect for the Pyrex glass by calibrating the measurement results with reference to those of the SiO2 glass.
Keywords :
acoustic variables measurement; borosilicate glasses; surface acoustic waves; ultrasonic absorption; ultrasonic materials testing; ultrasonic propagation; LFB-UMC system; LSAW propagation characteristics; Pyrex glass; SiO2; SiO2-B2O3; acoustic absorption effect; acoustic loss; borosilicate glass; frequency 225 MHz; leaky surface acoustic wave attenuation; line-focus-beam ultrasonic material characterization; synthetic silica glass; Acoustic materials; Acoustic measurements; Acoustic propagation; Acoustic waves; Attenuation measurement; Glass; Phase measurement; Surface acoustic waves; Ultrasonic variables measurement; Velocity measurement; attenuation measurement; borosilicate glass; leaky surface acoustic wave; line-focus-beam ultrasonic material characterization system; synthetic silica glass;
Conference_Titel :
Ultrasonics Symposium, 2008. IUS 2008. IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2428-3
Electronic_ISBN :
978-1-4244-2480-1
DOI :
10.1109/ULTSYM.2008.0146
