Optimum Design of Linear Phased Array Transducer for NDE

Full-field ultrasonic pressure is computed and visualized on the basis of the Huygen's superposition principle to investigate the influence of design parameters for a linear phased array. For the simulation, a linear phased array is considered as an array of single elements of finite width, and...

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Bibliographic Details
Published in:Key engineering materials 2000-01, Vol.183-187, p.619-624
Main Authors: Lee, Joon Hyun, Choi, Sang Woo
Format: Article
Language:English
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Summary:Full-field ultrasonic pressure is computed and visualized on the basis of the Huygen's superposition principle to investigate the influence of design parameters for a linear phased array. For the simulation, a linear phased array is considered as an array of single elements of finite width, and each element is assumed to be made of a large number of a simple line source excited at the same time. The wave generated from piezoelectric elements are considered as simplified transient ultrasonic waves which are constructed with the cosine function enveloped with a Hanning window. The effects of inter-element spacing and element size on beam directivity and ultrasound pressure field are discussed. (Author)
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.183-187.619