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

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2 Author(s)
Liu, J. ; Dept. of Mech. Eng., Univ. of Colorado, Boulder, CO ; Shandas, R.

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

Published in:

Ultrasonics Symposium, 2006. IEEE

Date of Conference:

2-6 Oct. 2006

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