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Fiber bragg grating hydrophone dragging array monitoring system

A fiber grating and monitoring system technology, which is applied to instruments, measuring devices, and measuring ultrasonic/sonic/infrasonic waves, etc., can solve the problems of complex release and recovery systems, large installation space requirements, and heavy weight, so as to reduce system signal interference and realize The effect of digital transmission and low power consumption

Pending Publication Date: 2021-03-30
THE 715TH RES INST OF CHINA SHIPBUILDING IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the premise of limited space and load capacity of the unmanned platform, the existing towed line array sonar faces problems such as heavy weight, complex release and recovery system, and large installation space requirements.

Method used

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  • Fiber bragg grating hydrophone dragging array monitoring system
  • Fiber bragg grating hydrophone dragging array monitoring system

Examples

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Embodiment

[0018] Example: as attached figure 1 As shown, this fiber grating hydrophone towed array monitoring system includes a watertight electronic cabin 10, a transmission optical cable 20 and a fiber grating towed line array 30. The watertight electronic cabin 10 has an outer casing 11 in a sealed structure, and the outer casing 11 includes The upper end cover 111, the lower end cover 112 and the barrel body 113, the barrel body 113 is a watertight metal cylinder, and the sealing ring is used between the barrel body 113, the upper end cover 111, and the lower end cover 112 to be watertight and fixed with screws; the upper end cover 111 is embedded with There is a power supply communication interface 114 and an optical cable transmission interface 115 . Several functional modules are loaded in the outer casing 11, and the functional modules include an optical transceiver module 12, a signal demodulation module 13, a signal processing module 14, a data storage module 15 and a power su...

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Abstract

The invention discloses a fiber bragg grating hydrophone dragging array monitoring system, and relates to the field of optical fiber sensing. The system comprises a watertight electronic cabin, a transmission optical cable and a fiber bragg grating dragging linear array. The watertight electronic cabin is provided with an outer shell, and a plurality of functional modules are loaded in the outer shell. The functional modules are connected with a power supply communication interface and an optical cable transmission interface which are arranged on the outer shell, the power supply communicationinterface supplies power to and communicates with the functional modules, and the optical cable transmission interface is connected with the fiber bragg grating towed linear array through a transmission optical cable to realize optical signal transmission between the watertight electronic cabin and the fiber bragg grating towed linear array; and the fiber bragg grating towed linear array is usedfor receiving an external target signal. The fiber bragg grating towed linear array technology is adopted, a small-diameter towed array is achieved, transmitting and receiving dry-end equipment is moved from the interior of an unmanned platform cabin to the exterior of the cabin in an electronic cabin mode through low-power-consumption and small-size design, and the problem that a towed linear array cable penetrates through the cabin is solved.

Description

technical field [0001] The invention relates to the field of optical fiber sensing, in particular to a fiber grating hydrophone towed array monitoring system. Background technique [0002] Maritime unmanned platforms can carry a variety of sensors and combat modules to perform underwater navigation and combat tasks such as alerting, reconnaissance, surveillance, tracking, and anti-submarine. It has attracted the attention of the navies of various countries, and has high tactical value and military application prospects in the fields of underwater reconnaissance, early warning and detection. [0003] The application of unmanned platforms in the field of underwater acoustic detection has promoted the development of underwater acoustic detection equipment technology suitable for unmanned platforms. The towed line array sonar is an important part of the underwater reconnaissance and detection system. The towed line array is towed away from the carrying platform and can be free ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H9/00
CPCG01H9/004
Inventor 徐汉锋智达谢勇叶博张红边会淳孙佳宾
Owner THE 715TH RES INST OF CHINA SHIPBUILDING IND CORP
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