Abstract
A model is formulated for the ultrasonic response of a scatterer in a fluid that lies on the axis of a transducer, where the transducer acts as both a sender and receiver of ultrasonic waves (pulse-echo setup). The transducer is modelled as a uniform velocity (piston) source and the scatterer can have arbitrary shape and material properties. Using a superposition of plane waves to form the bounded beam generated by the transducer, the T-matrix formalism to handle the scattering process exactly, and a combination of coordinate transformations and high frequency asymptotics, explicit analytical expressions are derived for the measured ultrasonic response. Experiments made for the response of an on-axis sphere show excellent agreement with the theory even in the near-field of the transducer.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
