Author： Danilov V. Voronkov I.
Publisher： MAIK Nauka/Interperiodica
ISSN： 1061-8309
Source： Russian Journal of Nondestructive Testing, Vol.47, Iss.6, 2011-06, pp. : 381-392
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Abstract
The specific features of the influence of such factors as the damping of a longitudinal wave in a medium, its transformation into a transverse wave during transmission, and the radiation directivity of array elements on the characteristics of a signal of a normal linear phased-array transducer are considered. Very simple methods for taking these factors into account are presented. It is noted that increasing the dimensions of array elements may lead to a significant reduction of the amplitude of the total transmitted signal in the transducer near-field zone.
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