Hydrophone and manufacturing method thereof

A production method and technology of hydrophone, applied in the field of sonar, can solve the problems of high performance and high pressure resistance, low hydrostatic pressure resistance, poor corrosion resistance, etc., and achieve high sensitivity, high hydrostatic pressure resistance, high performance effects

Pending Publication Date: 2019-03-15
中国科学院声学研究所北海研究站
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the problems existing in existing hydrophones, the object of the present invention is to provide a high-sensitivity, wide-band and low-cost hydrophone that can work for a long time under high hydrostatic pressure conditions, and is used in deep-sea detection and communication sonar systems , to solve the problems of existing underwater acoustic transducers such as low hydrostatic pressure resistance, high performance and high pressure resistance, poor corrosion resistance for long-term work, and narrow bandwidth

Method used

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  • Hydrophone and manufacturing method thereof
  • Hydrophone and manufacturing method thereof
  • Hydrophone and manufacturing method thereof

Examples

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Effect test

Embodiment 1

[0046]A hydrophone, comprising a shell, silicone oil, pressure-sensitive elements, electromagnetic shielding net, electrode socket, oil needle, preamplifier, electronic warehouse, connector, the shell is a cylinder with an open lower end and a hemispherical top, The electronic chamber is a cylinder with upper and lower ends open, and the upper end of the electronic chamber is connected to the lower end of the housing; the pressure sensitive element is a plurality of circular tubular piezoelectric ceramic tubes, and the middle of each piezoelectric ceramic tube is passed through a decoupling material. Separated; the electrode socket includes a pin and a plug, and the plug is used for insulation and watertightness; the connector includes an upper fixed cover, a support frame, a fixed screw, a base, a tailstock, and a lower fixed cover. The cover has a through hole, and the upper fixed cover is located at the upper end of the pressure-sensitive element, and the support frame is lo...

Embodiment 2

[0048] A hydrophone includes a shell, silicone oil, pressure-sensitive elements, electrode sockets, oil needles, preamplifiers, electronic compartments, and connectors. The shell is a cylinder with an open lower end and a hemispherical top. The shell adopts JA- S-casting polyurethane and related processes are vulcanized together with metal rubber seats. The wall thickness is 4mm, and the spacing is watertight and sound-permeable. The electronic compartment is a cylinder with openings at both upper and lower ends. Connection; the pressure-sensitive element is two piezoelectric ceramic round tubes connected in series, the size is Φ25×Φ19×15 mm, and the middle of the piezoelectric ceramic round tubes is separated by a decoupling material; the electrode socket includes pins and plugs , the pin is made of brass, the plug is made of polysulfone, and the plug is used for insulation and watertightness; the connecting piece includes an upper fixed cover, a support frame, a fixed screw, ...

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Abstract

The invention relates to a high-sensitivity, broadband and low-cost hydrophone capable of working for a long term under a condition of high hydrostatic pressure. The hydrophone is used in a deep oceansurvey and communication sonar system, and is used for solving problems of the existing underwater acoustic transducer, such as low hydrostatic pressure resistance, incompatibility between high performance and high pressure resistance, poor corrosion resistance in working for a long term and relatively narrow bandwidth.

Description

technical field [0001] The invention belongs to the technical field of sonar, and in particular relates to a hydrophone and a manufacturing method thereof. Background technique [0002] The urgent need for deep-sea geology and marine resource exploration and development promotes the continuous development of deep-sea exploration and delivery equipment. Due to the special conditions of high hydrostatic pressure in the deep sea, the underwater acoustic communication, detection and navigation system equipment carried by deep-sea devices must be specially designed. The underwater acoustic transducer is a key component of the underwater acoustic communication, detection and navigation system, and its performance often determines the overall performance index of the entire system. Underwater acoustic transducers working in deep sea conditions must be able to withstand high hydrostatic pressure, requiring special structural design. Common ones include pressure relief mechanism, pre...

Claims

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Application Information

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IPC IPC(8): H04R1/44H04R17/00H04R31/00
CPCH04R1/44H04R17/00H04R31/00H04R31/006Y02A90/30
Inventor 潘耀宗褚广宇刘文妮司泽宇
Owner 中国科学院声学研究所北海研究站
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