CN101101233A - Composite synchronous vibration type high-frequency tri-axial vector hydrophone - Google Patents
Composite synchronous vibration type high-frequency tri-axial vector hydrophone Download PDFInfo
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- CN101101233A CN101101233A CNA2007100723284A CN200710072328A CN101101233A CN 101101233 A CN101101233 A CN 101101233A CN A2007100723284 A CNA2007100723284 A CN A2007100723284A CN 200710072328 A CN200710072328 A CN 200710072328A CN 101101233 A CN101101233 A CN 101101233A
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Abstract
The invention belongs to a complex vibration high-frequency three-axial vector water listener, which is a ball compose of a three axial vibration sensors, eight acoustic pressure water listener. The vector water listener has three velocity channels, a channel sound pressure; the upper limit frequency is 12.5 kHz, which can measure the vector information and the scalar quantity of the water point in the underwater acoustic field. The vector listener has a small volume, simple structure and can works in the deeper water. The vector listener can be used for the various measurements in the water acoustic field.
Description
Technical field
The present invention relates to sensor field, particularly a kind of composite synchronous vibration type high-frequency tri-axial vector nautical receiving set under water.
Background technology
Use the more composite synchronous vibration type vector hydrophone that is based on inertial sensor in modern Underwater Acoustics Engineering, it mainly is applicable to the engineering application of low-frequency range (20-2000Hz).But it is, urgent day by day to the demand of high-frequency vector sensor along with the widespread usage of vector hydrophone at aspects such as China underwater acoustic measurement system, underwater movement objective measurement, submarine target noise measurements.
The upper limit frequency of operation of the three-D high frequency vector hydrophone of abroad developing at present can only reach 10kHz.The composite synchronous vibration type high-frequency tri-axial vector nautical receiving set that domestic upper limit frequency of operation reaches 12.5kHz does not still have the data of publishing.
Summary of the invention
For solving the problem that prior art exists, the invention provides a kind of composite synchronous vibration type high-frequency tri-axial vector nautical receiving set.The objective of the invention is in order to make the composite synchronous vibration type high-frequency tri-axial vector nautical receiving set, the work upper limiting frequency is 12.5kHz, an inner triple channel piezoelectric acceleration sensor, the formation vibration velocity channel of adopting of composite synchronous vibration type three axial high-frequency vector nautical receiving sets in design; On the shell of ball-type vector sensor, inlaying eight pressure hydrophones, constituting sound pressure channel, to adapt to of the requirement of underwater sound field to synchronous vibration type three axial high-frequency vector nautical receiving sets.
The formation of composite synchronous vibration type high-frequency tri-axial vector nautical receiving set, be by three axis vibration sensor [1] that can experience with the identical vibration information of measured medium particle, low-density composite layer [2], receive the measured medium particle acoustic pressure information pressure hydrophone [3] and cover on the spherical structure of entrant sound shell [4] formation of low-density composite layer [2] outside, a three-axial vibration sensor [1] places the central authorities of low-density composite layer [2], eight pressure hydrophones [3] are embedded between low-density composite layer [2] and the entrant sound shell [4] symmetrically, and cable end [5] and four links [6] (as accompanying drawing 1) are arranged on the surface of entrant sound shell [4].
Composite synchronous vibration type high-frequency tri-axial vector nautical receiving set of the present invention also has following characteristics:
What (1) become symmetry between low-density composite layer [2] and entrant sound shell [4] is evenly distributed with eight pressure hydrophones [3];
The centre of sphere is pointed in the axle center of (2) eight pressure hydrophones [3], and the output employing is connected in parallel;
(3) also be provided with output signal cable head [5] in entrant sound shell [4] outside;
(4) be provided with four links [6] that form one, are symmetrically distributed with entrant sound shell [4].
Owing to adopted the structure of three-axial vibration sensor [1], can reach the purpose of time synchronized, space concurrent measurement water particle vibration velocity with the compound one of eight pressure hydrophones [3].
The main theoretical basis of the reform of Chinese economic structure of this synchronous vibration type vector hydrophone design is: if the physical dimension of the firm spheroid of acoustics is much smaller than wave length of sound, it is kL＜＜1 (k-wave number, the maximum linear dimension of L-spheroid), then spheroid is done free movement under the underwater acoustic wave effect, has following relation in the amplitude V of its vibration velocity and the sound field between the vibration velocity amplitude of centre of sphere place water particle:
ρ in the formula
0Be aqueous medium density; ρ
1Average density for firm ball.
By top formula as can be known, for the work upper limiting frequency that makes vector hydrophone reaches 12.5kHz, the diameter of vector hydrophone can not surpass 75mm.
Adopt a three-axial vibration sensor [1] among the present invention, avoid in the original synchronous vibration type three axial low frequency vector hydrophones adopting six independently groups of acceleration sensors excessive shortcomings of physical dimension of becoming three axial arrangement to be caused, satisfied the requirement of synchronous vibration type three axial high-frequency vector nautical receiving set small sizes.
Advantage of the present invention is: the composite synchronous vibration type three axial high-frequency vector nautical receiving sets that provide can record the vibration information and the acoustic pressure information of three orthogonal directionss of space particle.Three-axial vibration sensor [1] volume is little, and composite synchronous vibration type high-frequency tri-axial vector nautical receiving set diameter is no more than 70mm, and the work upper limiting frequency can reach 12.5kHz.This composite synchronous vibration type high-frequency tri-axial vector nautical receiving set volume is little, working band is wide, making is simple.This composite synchronous vibration type high-frequency tri-axial vector nautical receiving set can be widely used in underwater sound field, and can be operated in than deepwater field.
Description of drawings
Fig. 1 is the side-looking partial cutaway schematic of composite synchronous vibration type high-frequency tri-axial vector nautical receiving set.
Embodiment
The composite synchronous vibration type high-frequency tri-axial vector nautical receiving set of present embodiment, spherical structure by three-axial vibration sensor [1], low-density composite layer [2], eight pressure hydrophones [3] and entrant sound shell [4] formation, a three-axial vibration sensor [1] places the central authorities of low-density composite layer [2], eight pressure hydrophones [3] evenly are embedded between low-density composite layer [2] and the entrant sound shell [4], the axial sensing centre of sphere of eight pressure hydrophones [3], and the output employing is connected in parallel.Low-density composite [2] is that the material by following percentage by weight is composited: glass microballoon 23%, epoxy resin 77%.Described entrant sound shell [4] is the Polyurethane material.Also be provided with output signal cable head [5] in entrant sound shell [4] outside, four links [6] form one with entrant sound shell [4].
At the underwater sound one-level test satellite location composite synchronous vibration type high-frequency tri-axial vector nautical receiving set of making is calibrated, vibration velocity channel sensitivity is-193dB (10kHz, 0dB=1V/ μ Pa), and has good cosine directivity; Sound pressure channel sensitivity is-195dB (0dB=1V/ μ Pa).
Advantage of the present invention is: the composite synchronous vibration type high-frequency tri-axial vector hydrophone has three vibration velocity channels, Individual sound pressure channel, upper limit operating frequency are 12.5kHz, can time synchronized, the space concurrent records sound field under water In Vector Message and the scalar information of water particle, have volume little, simple in structure, can be operated in than deepwater field Characteristics, can be applied to the various measurements in underwater sound field.
Claims (2)
1, a kind of composite synchronous vibration type high-frequency tri-axial vector nautical receiving set is characterized in that: its structure is by three-axial vibration sensor [1], low-density composite layer [2], eight pressure hydrophones [3] and cover on the spherical structure that the entrant sound shell [4] of low-density composite layer [2] outside constitutes; A three-axial vibration sensor [1] places the central authorities of low-density composite layer [2], and eight pressure hydrophones [3] are embedded between low-density composite layer [2] and the entrant sound shell [4] symmetrically; Also be provided with output signal cable head [5] and four links [6] in entrant sound shell [4] outside.
2, composite synchronous vibration type high-frequency tri-axial vector nautical receiving set as claimed in claim 1 is characterized in that: the axial sensing centre of sphere of eight pressure hydrophones [3], and the output employing is connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100723284A CN100456003C (en) | 2007-06-07 | 2007-06-07 | Composite synchronous vibration type high-frequency tri-axial vector hydrophone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100723284A CN100456003C (en) | 2007-06-07 | 2007-06-07 | Composite synchronous vibration type high-frequency tri-axial vector hydrophone |
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| Publication Number | Publication Date |
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| CN101101233A true CN101101233A (en) | 2008-01-09 |
| CN100456003C CN100456003C (en) | 2009-01-28 |
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| CNB2007100723284A Expired - Fee Related CN100456003C (en) | 2007-06-07 | 2007-06-07 | Composite synchronous vibration type high-frequency tri-axial vector hydrophone |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353444A (en) * | 2011-10-08 | 2012-02-15 | 哈尔滨工程大学 | Resonance type vector receiver under deep water |
| CN102759378A (en) * | 2011-04-28 | 2012-10-31 | 常熟海量声学设备科技有限公司 | Detection sensor for multiple parameters of underwater sound field |
| CN104048743A (en) * | 2014-06-26 | 2014-09-17 | 哈尔滨工程大学 | Underwater particle vibration rate vibration pickup |
| RU2533323C1 (en) * | 2013-03-21 | 2014-11-20 | Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) | Vector receiving device |
| CN105987751A (en) * | 2015-02-09 | 2016-10-05 | 常熟海量声学设备科技有限公司 | Sensor for detecting 2D vibration velocity and sound pressure of water medium |
| CN107202632A (en) * | 2017-06-09 | 2017-09-26 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Vector sensor unit for underwater surveillance net |
| CN111189527A (en) * | 2020-01-09 | 2020-05-22 | 哈尔滨工程大学 | Low-frequency vector hydrophone based on eddy current thickness measurement |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2005062060A1 (en) * | 2003-12-24 | 2007-12-13 | 日立金属株式会社 | Semiconductor type 3-axis acceleration sensor |
| CN100554896C (en) * | 2005-02-02 | 2009-10-28 | 哈尔滨工程大学 | High frequency small two-dimension coseismal column type vector hydrophone |
| CN1267732C (en) * | 2005-03-17 | 2006-08-02 | 西安交通大学 | High overload accelerometer with three degrees of freedom |
| CN2814340Y (en) * | 2005-04-30 | 2006-09-06 | 中国船舶重工集团公司第七一五研究所 | Vector sensor |
-
2007
- 2007-06-07 CN CNB2007100723284A patent/CN100456003C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759378A (en) * | 2011-04-28 | 2012-10-31 | 常熟海量声学设备科技有限公司 | Detection sensor for multiple parameters of underwater sound field |
| CN102353444A (en) * | 2011-10-08 | 2012-02-15 | 哈尔滨工程大学 | Resonance type vector receiver under deep water |
| CN102353444B (en) * | 2011-10-08 | 2012-12-19 | 哈尔滨工程大学 | Resonance type vector receiver under deep water |
| RU2533323C1 (en) * | 2013-03-21 | 2014-11-20 | Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) | Vector receiving device |
| CN104048743A (en) * | 2014-06-26 | 2014-09-17 | 哈尔滨工程大学 | Underwater particle vibration rate vibration pickup |
| CN105987751A (en) * | 2015-02-09 | 2016-10-05 | 常熟海量声学设备科技有限公司 | Sensor for detecting 2D vibration velocity and sound pressure of water medium |
| CN107202632A (en) * | 2017-06-09 | 2017-09-26 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Vector sensor unit for underwater surveillance net |
| CN111189527A (en) * | 2020-01-09 | 2020-05-22 | 哈尔滨工程大学 | Low-frequency vector hydrophone based on eddy current thickness measurement |
| CN111189527B (en) * | 2020-01-09 | 2021-10-19 | 哈尔滨工程大学 | Low-frequency vector hydrophone based on eddy current thickness measurement |
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|---|---|
| CN100456003C (en) | 2009-01-28 |
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