Medical transducer arrays using composite materials for acoustic matching layers

Author

Kondo, Toshio ; Fujimoto, Hiroyuki

Author_Institution

Fac. of Eng., Tokushima Bunri Univ., Kagawa, Japan

Volume

2

fYear

2003

fDate

5-8 Oct. 2003

Firstpage

1318

Abstract

The vibration mode of the arrays with two matching layers is studied by simulation of finite elements. The results obtained by the simulation indicate that the Poisson´s ratio of the matching layers gives great effect on the vibration mode of the array. That is, the characteristics of the array are improved, as Poisson´s ratio is smaller. For such materials to be realized, carbon fiber-epoxy and Dyneema-polyurethane unidirectional composite materials for matching layers are proposed, and the simulation results based on the data of those materials are presented.

Keywords

Poisson ratio; biomedical equipment; composite materials; finite element analysis; ultrasonic transducer arrays; vibrational modes; Dyneema-polyurethane; Poisson ratio; acoustic matching layers; carbon fiber-epoxy; finite elements simulation; medical transducer arrays; unidirectional composite materials; vibration mode; Acoustic arrays; Acoustic transducers; Biomedical acoustics; Biomedical transducers; Composite materials; Computer simulation; Finite element methods; Impedance; Organic materials; Vibrations;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics, 2003 IEEE Symposium on

Print_ISBN

0-7803-7922-5

Type

conf

DOI

10.1109/ULTSYM.2003.1293145

Filename

1293145