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

fYear

2008

fDate

2-5 Nov. 2008

Firstpage

611

Lastpage

614

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ULTSYM.2008.0146

Filename

4803625