The use of Pulse Compression and Frequency Modulated Continuous Wave to improve Ultrasonic Non Destructive Evaluation of highly-scattering materials

Author

Battaglini, L. ; Laureti, S. ; Ricci, Marco ; Burrascano, Pietro ; Davis, L.A.J. ; Hutchins, D.A.

Author_Institution

Dept. Of Eng., Univ. of Perugia, Terni, Italy

fYear

2014

fDate

3-6 Sept. 2014

Firstpage

1940

Lastpage

1943

Abstract

Different approaches have been investigated for the transmission of signals through highly attenuating and scattering materials. Chirp signals are sent through the material, and then processed using either time-multiplication or cross-correlation with a template to obtain information concerning the sample. The use of both narrow bandwidth piezoelectric transducers and wide bandwidth piezocomposites is also discussed.

Keywords

acoustic signal processing; composite materials; piezoelectric materials; piezoelectric transducers; pulse compression; ultrasonic materials testing; ultrasonic scattering; ultrasonic transducers; ultrasonic transmission; chirp signals; cross-correlation; frequency modulated continuous wave; highly attenuating materials; highly-scattering materials; narrow bandwidth piezoelectric transducers; pulse compression; signals transmission; time-multiplication; ultrasonic nondestructive evaluation; wide bandwidth piezocomposites; Acoustics; Aggregates; Chirp; Concrete; Scattering; Signal to noise ratio; FMCW; pulse-compression; scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2014 IEEE International

Conference_Location

Chicago, IL

Type

conf

DOI

10.1109/ULTSYM.2014.0482

Filename

6932286