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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.
|Number of pages||4|
|Publication status||Published - Jan 2010|
|Event||2009 IEEE Ultrasonics Symposium - Rome, Italy|
Duration: 20 Sep 2009 → 23 Sep 2009
|Conference||2009 IEEE Ultrasonics Symposium|
|Period||20/09/09 → 23/09/09|
- acoustic arrays
- ultrasonic array design
FingerprintDive into the research topics of 'A 2D ultrasonic array design incorporating hexagonal-shaped elements for NDE applications'. Together they form a unique fingerprint.
- 1 Finished
Gachagan, A. & Hayward, G.
1/04/08 → 31/03/11