P3P-4 Optimizing the Design of a 2D Array Piezoelectric Micromachined Ultrasound Transducer for 3D Echo Particle Image Velocimetry

Author

Liu, Jessica ; Shandas, Robin

Author_Institution

Dept. of Mech. Eng., Univ. of Colorado, Boulder, CO

fYear

2006

fDate

2-6 Oct. 2006

Firstpage

2329

Lastpage

2332

Abstract

In this paper, we explored the utility of a 2D piezoelectric Micromachined Ultrasound Transducers (pMUTs) for a 3D Echo Particle Image Velocimetry (Echo PIV) system. The design was achieved by first examining optimal mechanical-electrical coupling coefficient (MECC) for a pMUT subsequently characterizing system performance. A combination of analytical and finite element modeling was used to accomplish the optimization. In the final design, the resonant frequency of each element was 6.0 MHz with a relative bandwidth of 120% in water. By optimizing gaps, the axial resolution and lateral resolution were respectively 0.05mm and 0.35mm in water, which is sufficient for Echo PIV system

Keywords

echo; finite element analysis; micromechanical devices; optimisation; particle velocity analysis; piezoelectric transducers; ultrasonic transducers; 0.05 mm; 0.35 mm; 2D array piezoelectric micromachined ultrasound transducer; 2D piezoelectric micromachined ultrasound transducers; 3D echo particle image velocimetry; 6.0 MHz; Echo PIV system; analytical modeling; finite element modeling; mechanical-electrical coupling coefficient; optimization technique; Analytical models; Design optimization; Finite element methods; Mathematical model; Mechanical engineering; Piezoelectric transducers; Resonant frequency; Ultrasonic imaging; Ultrasonic transducer arrays; Ultrasonic transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2006. IEEE

Conference_Location

Vancouver, BC

ISSN

1051-0117

Print_ISBN

1-4244-0201-8

Electronic_ISBN

1051-0117

Type

conf

DOI

10.1109/ULTSYM.2006.588

Filename

4152444