Title :
The study of chain-like materials for use in biomedical ultrasound
Author :
Hutchins, D.A. ; Yang, Jian ; Akanji, O. ; Davis, L.A.J. ; Thomas, P.J. ; Freear, Steven ; Harput, Sevan ; Saffari, N. ; Gelat, P.
Author_Institution :
Sch. of Eng., Univ. of Warwick, Coventry, UK
Abstract :
Wave propagation in chain-like materials has been studied previously at low frequencies. The present study has generated these waves at higher frequencies with components >200 kHz, using chains of 1 mm diameter spheres. Resonant ultrasonic horns at 73 kHz have been used as sources of narrowband excitation, which transform into a train of broadband impulses that have the characteristics of solitary waves. These have potential applications in biomedical ultrasound as high amplitude, wide bandwidth impulses.
Keywords :
biomedical ultrasonics; solitons; ultrasonic propagation; biomedical ultrasound; chain like materials; frequency 73 kHz; narrowband excitation; resonant ultrasonic horns; solitary waves; wave propagation; Acoustics; Bandwidth; Educational institutions; Force; Harmonic analysis; Resonant frequency; Ultrasonic imaging; chains; non-linear; solitary waves;
Conference_Titel :
Ultrasonics Symposium (IUS), 2014 IEEE International
Conference_Location :
Chicago, IL
DOI :
10.1109/ULTSYM.2014.0651
