Numerical Simulation of Acoustic Field for the Miniature Cylindrical Transducer with a Rectangular Hole

Li Li Yu; Jin Hua Zhao; Quan Zhou Zhao; Chun Hui

doi:10.4028/www.scientific.net/AMR.421.739

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 421Numerical Simulation of Acoustic Field for the...

Numerical Simulation of Acoustic Field for the Miniature Cylindrical Transducer with a Rectangular Hole

Abstract:

In this paper the characteristics of acoustic field for miniature cylindrical focused transducer with a hole was studied in order to instruct the optimization design of the transducer for both realizing visualization and improving the treatment effect. Then the acoustic field was simulated numerically with different parameters of hole. It is found that position of focus is almost unchanged but acoustic pressure amplitude declines. In addition the performance of transverse focusing for the focal plane and levels length of acoustic pressure are lowered. Moreover, if size of transducer and rigidity of material permit, the area and ratio of width to height for the hole should be reduced appropriately to improve the focusing properties. And it is deduced that area and ratio of width to height for the cylinder can be increased to achieve the same therapeutic effect with a fixed hole size.

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Periodical:

Advanced Materials Research (Volume 421)

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739-742

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.421.739

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Online since:

December 2011

Authors:

Li Li Yu, Jin Hua Zhao, Quan Zhou Zhao, Chun Hui

Keywords:

Acoustic Field, Cylindrical Transducer, Linear Focal Region, Rectangular Hole

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