Tran Trong Thang and Nguyen Phan Kien and Trinh Quang Duc
Study on Discontinuity Properties of PhasedArray Ultrasound Transducer Affecting to Sound Pressure Fields Pattern
1744 - 1748
2014
8
10
International Journal of Electrical and Computer Engineering
https://publications.waset.org/pdf/9999819
https://publications.waset.org/vol/94
World Academy of Science, Engineering and Technology
The phasedarray ultrasound transducer types are
utilities for medical ultrasonography as well as optical imaging.
However, their discontinuity characteristic limits the applications due
to the artifacts contaminated into the reconstructed images. Because
of the effects of the ultrasound pressure field pattern to the echo
ultrasonic waves as well as the optical modulated signal, the side
lobes of the focused ultrasound beam induced by discontinuity of the
phasedarray ultrasound transducer might the reason of the artifacts.
In this paper, a simple method in approach of numerical simulation
was used to investigate the limitation of discontinuity of the elements
in phasedarray ultrasound transducer and their effects to the
ultrasound pressure field. Take into account the change of ultrasound
pressure field patterns in the conditions of variation of the pitches
between elements of the phasedarray ultrasound transducer, the
appropriated parameters for phasedarray ultrasound transducer
design were asserted quantitatively.
Open Science Index 94, 2014