Abstract

Broadband ultrasound imaging is capable of achieving superior resolution in clinical applications. An effective and easy way of manufacturing broadband transducers is desired for these applications. In this work, a partial composite in which the piezoelectric plate is mechanically graded with a number of rectangular grooves is introduced. Finite element analysis (FEA) demonstrated that the partial composite could easily obtain multiple resonant modes, resulting in a broadband time domain response. Experimental tests were carried out to validate the theoretical results. Based upon the FEA designs, several single-element transducers were fabricated using either a non-diced ceramic or a diced partial composite. A superior bandwidth of 92% was achieved by the partial composite transducer when compared to a bandwidth of 56% produced by the non-diced ceramic transducer.

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 call

Disclaimer: 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.