Stress field design in vibro-acoustography beam forming

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Vibro-acoustography produces images of the acoustic response of a material to a localized harmonic motion generated by ultrasound radiation force. Proper beam forming for the stress field of the probing ultrasound is very important because it determines the resolution of the imaging system. Three beam forming geometries are studied: amplitude modulation, confocal, and x-focal. The profiles of radiation stress amplitude on focal plane and beam axis are derived from each geometry's pressure field. The theory is validated by experiments where a small sphere is scanned in all geometries. Sphere motion measured by a laser vibrometer is used to infer the exerted radiation stress. The theory and experimental technique may be useful in future transducer design for vibro-acoustography.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Ultrasonics Symposium
EditorsD.E. Yuhas, S.C. Schneider
Pages1630-1633
Number of pages4
Volume2
StatePublished - 2003
Event2003 IEEE Ultrasonics Symposium - Proceedings - Honolulu, HI, United States
Duration: Oct 5 2003Oct 8 2003

Other

Other2003 IEEE Ultrasonics Symposium - Proceedings
CountryUnited States
CityHonolulu, HI
Period10/5/0310/8/03

Fingerprint

Radiation
Geometry
Ultrasonics
Amplitude modulation
Imaging systems
Transducers
Acoustics
Lasers
Experiments

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Chen, S. D., Fatemi, M., & Greenleaf, J. F. (2003). Stress field design in vibro-acoustography beam forming. In D. E. Yuhas, & S. C. Schneider (Eds.), Proceedings of the IEEE Ultrasonics Symposium (Vol. 2, pp. 1630-1633)

Stress field design in vibro-acoustography beam forming. / Chen, Shigao D; Fatemi, Mostafa; Greenleaf, James F.

Proceedings of the IEEE Ultrasonics Symposium. ed. / D.E. Yuhas; S.C. Schneider. Vol. 2 2003. p. 1630-1633.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chen, SD, Fatemi, M & Greenleaf, JF 2003, Stress field design in vibro-acoustography beam forming. in DE Yuhas & SC Schneider (eds), Proceedings of the IEEE Ultrasonics Symposium. vol. 2, pp. 1630-1633, 2003 IEEE Ultrasonics Symposium - Proceedings, Honolulu, HI, United States, 10/5/03.
Chen SD, Fatemi M, Greenleaf JF. Stress field design in vibro-acoustography beam forming. In Yuhas DE, Schneider SC, editors, Proceedings of the IEEE Ultrasonics Symposium. Vol. 2. 2003. p. 1630-1633
Chen, Shigao D ; Fatemi, Mostafa ; Greenleaf, James F. / Stress field design in vibro-acoustography beam forming. Proceedings of the IEEE Ultrasonics Symposium. editor / D.E. Yuhas ; S.C. Schneider. Vol. 2 2003. pp. 1630-1633
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