FIELD: hydroacoustics.
SUBSTANCE: invention relates to hydroacoustics and can be used to measure directivity characteristics of radiating hydroacoustic antennae of hydroacoustic complexes of various objects of the installation. Method comprises measuring acoustic pressure generated by a radiating hydroacoustic antenna on a spherical surface in a Fresnel diffraction zone, and subsequent calculation using the integral formula of the Kirchhoff of the acoustic pressure distribution formed by the radiating hydroacoustic antenna in the Fraunhofer diffraction zone in an arbitrary plane of space. Measuring probe is multichannel in form of a generating sphere, the diameter of which is greater than the linear dimension of the radiating hydroacoustic antenna.
EFFECT: enabling measurement of the directivity characteristic formed by radiating hydroacoustic antennae of hydroacoustic complexes in arbitrary planes with minimum methodological error.
1 cl, 3 dwg
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