Ultrasonic tomographic imaging of an encased highly-attenuating solid media

Author

Gan, T.H. ; Hutchins, D.A. ; Billson, D.R. ; Wong, F.C.

Author_Institution

Sch. of Eng., Warwick Univ., Coventry, UK

Volume

1

fYear

2000

fDate

36800

Firstpage

823

Abstract

Ultrasonic tomographic imaging has been performed on a highly-attenuating filled hydroxyl-terminated polybutadiene, cast into a steel case. Extremely low signal levels due to the attenuation and scattering properties of the polymer were present. Complications also arose from high amplitude guided waves within the steel case, which tended to mask directly-transmitted signals through the propellant. These were solved using specially-designed and pulse-compression signal processing. Images will be presented to demonstrate the technique

Keywords

acoustic signal processing; acoustic tomography; filled polymers; ultrasonic absorption; ultrasonic imaging; ultrasonic materials testing; ultrasonic scattering; US attenuation; US scattering; filled polymer; high-amplitude guided wave; hydroxyl terminated polybutadiene; propellant; pulse compression signal processing; solid medium; steel case; ultrasonic tomographic imaging; Attenuation; Performance evaluation; Propulsion; Rockets; Signal processing; Solids; Steel; Tomography; Ultrasonic imaging; Ultrasonic variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2000 IEEE

Conference_Location

San Juan

ISSN

1051-0117

Print_ISBN

0-7803-6365-5

Type

conf

DOI

10.1109/ULTSYM.2000.922669

Filename

922669