Butt formation

Abstract

The invention relates to a butt joint array. The butt joint comprises a transmitting transducer array and a matching layer, wherein the transmitting transducer array comprises a plurality of transmitting transducers which are distributed corresponding to acoustic transducer images in a tested sound array in positions; the matching layer is positioned between the transducer array and the tested sound array; and the transmitting transducer array is connected with the tested sound array through the matching layer. The butt joint array provided by the invention utilizes the transmitting transducers with wide working band and high efficiency, and adopts the distribution of array elements in one-to-one correspondence to array elements of the tested sound array, so that the mechanical coupling problem is effectively solved and the butt joint array has better amplitude and phase characteristic.

Description

technical field [0001] The invention relates to the technical field of underwater acoustic simulation testing, in particular to a docking array. Background technique [0002] Docking array method simulation is an important means of underwater vehicle system simulation. Its design idea is to convert the digital signals (simulation target echo sound field, noise field, reverberation field, etc.) generated by the target simulation system into The analog signal, after being matched and amplified, is sent to the acoustic sensor under test through the docking array, thus forming the laboratory simulation environment of the acoustic guidance system under test. [0003] The existing simulation systems mainly include two types. One is the simulation system using a single transducer, which does not generate parallel beams, has poor precision, and has large mutual coupling interference. It can only generate 0-degree azimuth sound waves, phase-frequency characteristics, amplitude-freque...

AI Technical Summary

Problems solved by technology

[0003] The existing simulation systems mainly include two types. One is the simulation system using a single transducer, which does not generate parallel beams, has poor precision, and has large mutual coupling interference. It can only generate 0-degree azimuth sound waves, phase-frequency characteristics, amplitude-frequency Poor characteristics, and can only do qualitative simulation

At the same time, a certain launch distance is required, and the detection conditions are strict.

The second is to use the docking array method conformal to the measured acoustic array, which is relatively simple and convenient, with high precision, good phase-frequency characteristics, and good amplitude-frequency characteristics, but there is inevitably cross-coupling, and mechanical decoupling is very difficult

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