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Magnetic composite three-dimensional vector hydrophone with target positioning and distinguishing function and target positioning and distinguishing method thereof

A vector hydrophone and target positioning technology, which is applied to vibration measurement in fluids, instruments, and measurement vibrations, can solve the problems of inaccurate target discrimination and poor precision

Inactive Publication Date: 2014-07-30
NO 49 INST CHINESE ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of poor positioning accuracy and inaccurate target discrimination of existing single vector hydrophones for space targets, the present invention provides a magnetic composite three-dimensional vector hydrophone with target positioning and discrimination functions and the hydrophone. Target positioning and discrimination method

Method used

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  • Magnetic composite three-dimensional vector hydrophone with target positioning and distinguishing function and target positioning and distinguishing method thereof
  • Magnetic composite three-dimensional vector hydrophone with target positioning and distinguishing function and target positioning and distinguishing method thereof
  • Magnetic composite three-dimensional vector hydrophone with target positioning and distinguishing function and target positioning and distinguishing method thereof

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specific Embodiment approach 1

[0027] Specific implementation mode one, combination figure 1 figure 2 To explain this embodiment, the magnetic composite three-dimensional vector hydrophone with target positioning and discrimination functions described in this embodiment includes 3 MEMS acceleration sensors 1, 2 acoustic pressure hydrophones 2, and magnetic orientation sensors. 3. The quadrature adjustment frame 4, the signal processing circuit 5 and the shell 6 of the acoustic sound-transmitting potting material;

[0028] The orthogonal adjustment frame 4 is a non-closed cube frame composed of 11 brackets fixedly connected, and each frame of the frame is provided with a circular through hole for connecting with a bolt, and a connection of the orthogonal adjustment frame 4 A three-dimensional rectangular coordinate system is established with a point as the center. The three MEMS acceleration sensors 1 are respectively installed on the XOY, XOZ and YOZ planes of the orthogonal adjustment frame 4 by bolts, and th...

specific Embodiment approach 2

[0029] Specific implementation mode two, see figure 1 To explain this embodiment, the difference between this embodiment and the magnetic composite three-dimensional vector hydrophone with target positioning and discrimination functions described in the first embodiment is that the vector hydrophone also includes a cable 7, and the cable 7 One end is connected to the signal output end of the signal processing circuit 5, and the cable 7 passes through the cylindrical housing 6 for connection with external equipment.

specific Embodiment approach 3

[0030] Specific implementation mode three, see figure 1 To explain this embodiment, the difference between this embodiment and the magnetic composite three-dimensional vector hydrophone with target positioning and discrimination functions described in the first embodiment is that the vector hydrophone also includes 8 hooks 8 and 8 cylindrical shapes. Connecting piece 9. The main body of the 8 cylindrical connecting pieces 9 is sealed in the cylindrical shell 6. A cylindrical surface of the cylindrical shell 6 is fixed with 4 cylindrical connecting pieces 9 One end is located outside the cylindrical shell 6, and eight hooks 8 are threadedly connected with eight cylindrical connecting pieces 9.

[0031] The eight hooks described in this embodiment are used to hang the vector hydrophone in the water during target measurement.

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Abstract

The invention discloses a magnetic composite three-dimensional vector hydrophone with a target positioning and distinguishing function and a target positioning and distinguishing method of the magnetic composite three-dimensional vector hydrophone, relates to a magnetic composite three-dimensional MEMS vector hydrophone with an automatic positioning and target distinguishing function, and belongs to the technical field of hydroacoustic sensors. The magnetic composite three-dimensional vector hydrophone with the target positioning and distinguishing function and the target positioning and distinguishing method of the magnetic composite three-dimensional vector hydrophone solve the problems that according to an existing single vector hydrophone, the space target positioning accuracy is poor, and a target can not be distinguished accurately. The magnetic composite three-dimensional vector hydrophone with the target positioning and distinguishing function comprises three MEMS acceleration sensors, two pressure hydrophones, a magnetic azimuth sensor, an orthogonal adjustment frame, a signal processing circuit and a shell made of acoustic sound-transmission encapsulating materials, wherein the three MEMS acceleration sensors, the two pressure hydrophones and the magnetic azimuth sensor are all fixed to the orthogonal adjustment frame. The magnetic composite three-dimensional vector hydrophone with the target positioning and distinguishing function and the target positioning and distinguishing method of the magnetic are suitable for detection of underwater targets.

Description

Technical field [0001] The invention relates to a magnetic composite three-dimensional MEMS vector hydrophone for autonomous positioning and target discrimination, and belongs to the technical field of underwater acoustic sensors. Background technique [0002] With the development of underwater acoustic sensor technology, the use of vector hydrophones to obtain underwater acoustic information and to detect and locate underwater targets is gradually becoming an effective means for marine environmental monitoring, detection and underwater target recognition. In 1997, for the first time in China, the introduction of technology was carried out systematically to carry out special research on vector hydrophone technology. The first domestic vector hydrophone field test was conducted in 1998, and the first domestic vector hydrophone offshore test was conducted in 2000. The results are good and have made important contributions to the engineering application of vector hydrophones. Vecto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H3/00
Inventor 李金平张鹏徐兴烨李起栋宫占江史鑫
Owner NO 49 INST CHINESE ELECTRONICS SCI & TECH GRP
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