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Spherical high-frequency vector sensor vibration velocity channel and sound pressure channel integral processing method

A vector sensor, sound pressure channel technology, applied in the measurement of vibration, instruments, measurement devices, etc., can solve the problems of small size and technical difficulty, and achieve the effect of small size and space saving

Inactive Publication Date: 2008-10-15
HARBIN ENG UNIV
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Problems solved by technology

[0003] According to the design principle of the co-vibration vector sensor, the upper limit operating frequency of the high-frequency vector sensor is limited by the wavelength of the sound wave in the water, and its volume is small. The high-frequency vector hydrophone with both the vibration velocity channel and the sound pressure channel is manufactured. There are great technical difficulties
[0004] At present, there is no published information on the integrated processing method of the vibration velocity channel and the sound pressure channel of the spherical high-frequency vector sensor at home and abroad.

Method used

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  • Spherical high-frequency vector sensor vibration velocity channel and sound pressure channel integral processing method

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Embodiment Construction

[0018] The integrated processing method of the vibration velocity channel and the sound pressure channel of the spherical high-frequency vector sensor in this embodiment is carried out in the following steps: first, all parts are cleaned, the sensor [1] is placed in a spherical mold, and eight acoustic The pressurized hydrophone [3] is also fixed on the mould, and the prepared low-density composite material [2] is poured into the spherical mold. After the low-density composite material [2] is completely cured, the mold is removed and cleaned. Put the obtained sphere with eight sound pressure hydrophones [3] inlaid on its outer surface into another outer mold, and put the ring [4] with four hanging rings [5] into a spherical low-density compound The waist position of the material [2]. Accurately adjust the position of the ring [4] to ensure that the ring [4] does not contact the ball surface of the low-density composite material [2]. Then the prepared sound-transmitting materi...

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Abstract

The present invention is process of machining spherical HF vector sensor with integrated vibration velocity channel and sound pressure channel. The process includes: setting one 3D vibration velocity sensor in the center of one sphere made of low density composite material, embedding eight sound pressure hydrophones homogeneously on the surface of the sphere, mounting one ring with four suspension loops outside the sphere in certain distance, and coating the sphere with sound penetrating material while exposing four suspension loops. The spherical HF vector sensor is applied in great depth hydroacoustic measurement.

Description

technical field [0001] The invention relates to a processing method, in particular to an integrated processing method of a vibration velocity channel and a sound pressure channel of a spherical high-frequency vector sensor. Background technique [0002] In order to completely describe the underwater sound field and make full use of the underwater sound field information, not only the scalar information in the sound field, such as sound pressure, but also the vector information in the sound field, such as particle velocity, particle acceleration, displacement, etc., can be The measurement device to realize these physical quantities is a combined vector sensor, which has a sound pressure channel and three orthogonal vector channels. At present, my country's vector sensor technology has fully realized the localization of technology and technology in the low frequency band (20-2000Hz), and the low frequency vector sensor has been applied to engineering. However, with the widesp...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C39/10G01H3/00B29K105/06B29K63/00B29K509/08B29K75/00
Inventor 杨德森洪连进时胜国陈洪娟
Owner HARBIN ENG UNIV
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