journal article·2009-08

On calculation of DGS diagrams of normal transducers for spherical and cylindrical reflectors

V. N. Danilov

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Abstract

Formulas for the acoustic path were obtained and DGS diagrams were calculated in a general case and in a scalar approximation for a hollow spherical reflector positioned axially symmetrically relative to a normal transducer. The convergence of DGS diagrams to the asymptotic value determined by the formula for the far-field zone, the difference between them obtained using the reflection coefficients with exact and approximate accounting of the boundary conditions at the reflector, and the effect of a pulsed transmission-reception mode were studied. The DGS diagrams for a hollow circular cylindrical reflector (side drilled hole) were calculated using I.N. Ermolov’s method.
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Research context

OpenAlex topics: Industrial Engineering and Technologies · Geotechnical and Geomechanical Engineering · Material Properties and Applications

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References (18)

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