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Single fin arrayed sonar equipment

A sonar and single-fin technology, applied in the re-radiation of sound waves, the use of re-radiation, measurement devices, etc., can solve problems that affect the performance, mobility and speed of UUV fluids, high work complexity, unfavorable UUV release and recovery, etc. , to prolong the underwater working time, improve the fixing strength, and facilitate the release and recovery

Inactive Publication Date: 2011-11-09
INST OF ACOUSTICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two types of sonar have obvious disadvantages, because whether it is the front nose array or the towed array, it will seriously affect the fluid performance, maneuverability and speed of the UUV. In addition, because they are all installed in a disassembled and external installation method, the work is very complicated. , which is not conducive to the release and recovery of UUV

Method used

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  • Single fin arrayed sonar equipment
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  • Single fin arrayed sonar equipment

Examples

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Embodiment 1

[0035] This embodiment is a single dorsal fin array sonar system for underwater unmanned vehicles. The main array part is installed on the central axis of the back of the underwater unmanned vehicle. The system constitutes as figure 1 As shown, it includes five parts including dorsal fin hydrophone array, array bracket and fixer, shroud, watertight interface and signal processor. The various components of the single dorsal fin array sonar system will be further introduced below.

[0036] In this embodiment, the hydrophone array is composed of cylindrical, spherical or hemispherical hydrophones at equal intervals; the interval is half of the working wavelength of the hydrophones.

[0037] The array bracket is fixed on the back of the underwater unmanned vehicle shell, and each array element of the hydrophone array is fixedly installed on the array bracket, and each array element of the hydrophone array is along the back of the underwater unmanned vehicle shell. Axis arrangeme...

Embodiment 2

[0061] This embodiment is a single ventral fin array sonar system for an underwater unmanned vehicle. The main array part is installed on the central axis of the abdomen of the underwater unmanned vehicle. The system constitutes as Figure 9 As shown, it includes five parts such as ventral fin hydrophone array, array bracket and fixer, conformal shroud, watertight interface and signal processor (specific details can refer to the description of embodiment 1, and will not be repeated here) .

[0062] The installation and work of the single ventral fin array sonar for the underwater unmanned vehicle provided by this implementation include the following steps:

[0063] 1) The ventral fin hydrophone array is installed and fixed on the main frame of the array bracket, and the array cables are led out through the hollow main frame;

[0064] 2) The main frame of the array bracket is installed at the central axis of the belly of the underwater unmanned vehicle, and is fixed to the un...

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Abstract

The invention provides a single fin arrayed sonar equipment, comprising a hydrophone array, an array support and a flow guiding hood. The array support is fixed on the back or abdominal region of a shell of a submarine unmanned navigator. Each array element of the hydrophone array is installed on the array support and is axially arrayed along the back or abdominal region of the shell of the submarine unmanned navigator. The flow guiding hood is connected with the shell of the submarine unmanned navigator. The hydrophone array and the array support are located in a cavity formed between the flow guiding hood and the submarine unmanned navigator. The invention occupies less space, is beneficial to release the loading capability at two sides of a carrying platform and has small influence on the fluid property, the mobility and the speed of the carrying platform.

Description

technical field [0001] The invention belongs to the field of sonar equipment, in particular to a single-fin array sonar equipment used for a miniaturized underwater activity platform. Background technique [0002] Miniaturized underwater activity platforms mainly include underwater unmanned vehicles and underwater towed detection platforms. Among them, the underwater unmanned vehicle (UUV, Underwater Unmanned Vehicle) has a very important position in the modern ocean combat system due to its technical characteristics such as flexible maneuverability, good concealment, and large endurance. UUV is called the Navy's "power multiplier" and is widely used in modern naval warfare. It has obvious advantages such as concealment and maneuverability in long-range target detection. However, compared with ships, UUVs are smaller in size and have limited space. Therefore, How to install detection sonar on UUV has always been an urgent problem to be solved for UUV remote detection. At p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S15/88G01S7/521
Inventor 李宇朱沛胜黄海宁张春华
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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