Projects per year
Abstract
Contemporary 2D Ultrasonic arrays suffer from low SNR and limited steering capabilities. Yet, there is a great desire in the industry to increase the operational frequency, in order to enhance their volumetric imaging resolution. State-of-the art arrays use an orthogonal matrix of rectangular elements as this is a natural step forward from the conventional 1D array structure. The objective of this work is to evaluate properties of triangular, rather than rectangular ceramic pillars in a 1-3 connectivity piezoelectric composite for application in a hexagonal-element 2D array. A 3MHz prototype device exploiting new hexagonal substructure have been manufactured. Measured mechanical cross-coupling level is -21.9dB between neighbouring hexagonal elements, providing validation of simulation result. Corroboration between measured and FE modelled device behaviour is demonstrated.
Original language | English |
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Pages | 422-425 |
Number of pages | 4 |
DOIs | |
Publication status | Published - Jan 2010 |
Event | 2009 IEEE Ultrasonics Symposium - Rome, Italy Duration: 20 Sep 2009 → 23 Sep 2009 |
Conference
Conference | 2009 IEEE Ultrasonics Symposium |
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Country | Italy |
City | Rome |
Period | 20/09/09 → 23/09/09 |
Keywords
- acoustic arrays
- apertures
- ultrasonic array design
- ceramics
Projects
- 1 Finished
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Two-Dimensional Arrays for the Quantitative Characterisation of Complex Defects
Gachagan, A. & Hayward, G.
EPSRC (Engineering and Physical Sciences Research Council)
1/04/08 → 31/03/11
Project: Research