CN202267530U - Co-vibrating vector receiver used under deep water - Google Patents
Co-vibrating vector receiver used under deep water Download PDFInfo
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- CN202267530U CN202267530U CN2011203798335U CN201120379833U CN202267530U CN 202267530 U CN202267530 U CN 202267530U CN 2011203798335 U CN2011203798335 U CN 2011203798335U CN 201120379833 U CN201120379833 U CN 201120379833U CN 202267530 U CN202267530 U CN 202267530U
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Abstract
The utility model is to provide a co-vibrating vector receiver used under deep water, including an inertia unit, a piezoelectric sensitive unit, a pressure-resistant casing, a sealing unit and a cable head. The inertia unit is a cube with ten through holes; the piezoelectric sensitive unit includes six sets of independent piezoelectric patch piles, and each piezoelectric patch pile is respectively connected with the inertia unit; the sealing unit includes a lateral seal cover and a main seal cover; the sealing unit is rigidly connected with the pressure-resistant casing; the mechanism comprising the inertia unit and the piezoelectric sensitive unit is sealed in the pressure-resistant casing by the sealing unit; and the main sealing cover is provided with the cable head. In the utility model, the co-vibrating vector receiver used under deep water can work normally under 300 m deep water, high-quality vector information of an under-water sound field can be received in the scope of 20 to 1000 Hz, a strong anti-interference capability is possessed, a watertight casing is perfused with a sensitive member integratedly, the structure is simple, the reliability is strong, and the co-vibrating vector receiver used under deep water can be widely applied in the field of deep water low frequency water sound measurement.
Description
Technical field
The utility model relates to a kind of receiver under water, specifically the receiver with neutral buoyancy of work under deepwater environment.
Background technology
Receiver under water, so-called nautical receiving set, it can receive the acoustical signal of propagating in the sound field under water.Acoustical signal difference according to receiving can be divided into pressure hydrophone and vector hydrophone, and pressure hydrophone can obtain the sound pressure signal of propagating in the sound field under water; Vector hydrophone can obtain the vector signal of propagating in the sound field under water, comprises signals such as particle displacement, acceleration, speed and acoustic pressure gradient.
Vector hydrophone is also referred to as vector signal receiver under water abroad usually, is divided into two types of differential and synchronous vibration types according to the working mechanism difference, is one of novel underwater acoustic transducer spare that domestic underwater sound field is extremely paid close attention to over past ten years.Compare with the pressure hydrophone of classics; The synchronous vibration type vector hydrophone has higher low-frequency sensitive degree, better low frequency cosine directional property and small and exquisite volume, lighter quality (being neutral buoyancy under water basically); Therefore be widely used in the Underwater Acoustics Engineering various aspects, particularly sonar buoy.
Constantly urgent along with the vector hydrophone application demand, the development work of vector hydrophone is developed rapidly.At present; Domesticly realizing seriation aspect the research of vector hydrophone basically: frequency range from several Hz to tens kHz in addition higher, sensitivity from-210dB～-170dB even higher, average density be near aqueous medium density 1000kg/m3 even lower; Measurand comprises speed, acceleration and acoustic pressure gradient; Physical dimension is greatly to 200～300mm, little of 30～40mm even littler; Shape have three-dimensional sphere, two-dimentional cylindricality and one dimension disk etc. (referring to Chen Hongjuan. vector sensor. publishing house of Harbin Engineering University, 2006; Yang Desen. opinion is drawn in vector hydrophone principle and application. Science Press, 2009).
But the vector hydrophone of developing at present as stated at home, is used the degree of depth and is generally had only hundreds of rice (being no more than 10MPa).Along with the continuous development of marine resources development and ocean strategy, the demand of deep-sea detecting instrument and equipment is more and more, more and more urgent both at home and abroad.As a kind of novel receiver under water---vector hydrophone with huge applications potentiality and advantage; The present domestic sample that only can under the 1000m deepwater environment, work (referring to Yang Songtao. the development of deep water vector hydrophone [D]. Harbin Engineering University, 2010).
Abroad in the development and the application of deep water vector hydrophone, the U.S. is in world lead level always.Such as; 1988; The Richard G.Adair of USN; John A.Orcutt and William E.Farrell lead research group 5.5 km place successful Application vector hydrophones have carried out the underwater sound test and the vector signal that receives has been carried out relevant processing as receiving equipment in the South Pacific Ocean, show that the applied vector hydrophone of this group can bear at least the hydrostatic pressing of 55MPa (referring to RICHARD G.ADAIR, JOHN A.ORCUTT; AND WILLIAM E.FARRELL.Infrasonic Seismic and Acoustic Measurements in the Deep Ocean.IEEE JOURNAL OF OCEANIC ENGINEERING; VOL.13, NO.4, OCTOBER 1988); Nineteen ninety-five; The people such as Peter F.Worcester of Scripps research institute of California, USA marine environment university are in the marine environmental monitoring project (ATOC) that it is carried out; Place vertical vector nautical receiving set linear array through the seabed that surpasses 2000 meters in the degree of depth and extract marine environment data, every linear array is settled 40 nautical receiving sets, at more early 1-2 in 1994 between the month; These researchists also once carried out independent calibration to vector hydrophone array element and measured (referring to Peter F.Worcester; Kevin R.Hardy, David Horwitt, and Douglas A.Peckham.A DEEP OCEAN DATA RECOVERY MODULE.); The state university of Oregon, America, the state university in northern California and the researchist of Pacific Ocean environmental laboratory that is under the jurisdiction of the American National marine atmosphere council be south latitude 21 degree 25 minutes and 12.6 seconds in the Pacific Ocean; West longitude 176 degree were located depth of water 500-1500 rice interval in 12 minutes 45.5 seconds and have been carried out seabed hydrographic information detection; Device therefor is vertical ternary vector linear array; Tested during year 4 monthly calendars 5 months in Dec, 2009 to 2010, and the ocean acoustic field information of collecting this waters of success (referring to: H.Matsumoto, D.Bohnenstiehl; R.P.Dziak1; L.Williams, R.Gliege, C.N.Meinig and P.Harben.AVertical Hydrophone Array Coupled via Inductive Modem for Detecting Deep-Ocean Seismic and Volcanic Sources).
In addition; Russia once adopted buoy to carry out underwater noise measurement in 1-12Hz, 32-141Hz and 282-800Hz frequency at 3000 meters of the southern China sea depth of water in 1989; Show that its vector hydrophone equipment can be operated in 1500m left and right sides deepwater regions (referring to V.A.Shchurov.Coherent and diffusive fields of underwater acoustic ambient noise.J.Acoust.Sec.Am.90 (2); Pt.1, August 1991:991-1001P).
As stated; Although abroad the application facet at the deep water vector hydrophone has accumulated a large amount of practical experiences; But; The vector hydrophone that uses in its experiment belongs to differential vector hydrophone mostly, and for the synchronous vibration type vector hydrophone, does not also see the bibliographical information that is operated in the 3000m degree of depth at present.
Summary of the invention
The purpose of the utility model be to provide can in the marine environment of 3000 meters depth of waters, in the 20-1000Hz frequency range, obtain sound field particle acceleration vector signal can be used for deep water synchronous vibration type vector receiver under water.
The purpose of the utility model is achieved in that
The utility model can be used for deep water synchronous vibration type vector receiver under water; It is characterized in that: comprise inertance element, piezoelectric sensitivity unit, pressure hull, sealing unit, cable end; Inertance element is the cube that has ten through holes, and the piezoelectric sensitivity unit comprises six groups of independently piezoelectric patches heaps, and every group of piezoelectric patches heap links to each other with inertance element respectively; Sealing unit comprises lateral seal lid, primary seal lid; Sealing unit and pressure hull are rigidly connected, and sealing unit is sealed in the mechanism of inertance element and piezoelectric sensitivity unit composition in the pressure hull, and primary seal covers the installation cable end.
The utility model can also comprise:
1, described piezoelectric patches heap comprises 4 piezoelectric patches or piezoelectricity pipe, the parallel connection between the piezoelectric patches, the parallel connection between the piezoelectricity pipe.
2, ten through holes of described inertance element lay respectively at the place, four summits to angle sections of cubical six face centers and two quadratures.
3, described pressure hull is the spheroid that axially has three positive access holes along X, Y, Z respectively, and at through hole and spheres intersect place one plane is arranged, and O type circle groove is arranged on it.
The advantage of the utility model is:
1. in 3000m operate as normal under water;
2. can high-quality reception in 20-1000Hz very low frequency (VLF) frequency range the Vector Message of sound field under water, have stronger antijamming capability;
3. the integrated perfusion of watertight housings and sensitive element forms simple in structure, good reliability.
The utility model can be widely used in deep water low frequency underwater acoustic measurement field, like deep-sea communication, reply and detection etc.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the inertance element synoptic diagram of the utility model;
Fig. 3 is the piezoelectric sensitivity cell schematics of the utility model;
Fig. 4 is the pressure hull synoptic diagram of the utility model;
Fig. 5 is the primary seal lid synoptic diagram of the utility model.
Embodiment
For example the utility model is done description in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1～5, it comprises the utility model sensing unit, inertance element, sealing unit and pressure hull and is connected lead and output cable.Described sensing unit by six groups independently piezoelectric patches heap forms, every group of parallel connection of 4 piezoelectric patches (also can be replaced by the piezoelectricity pipe), it is identical that wherein per three groups of piezoelectric patches are piled polarity.Every group of piezoelectric patches heap connects through the sensing unit pedestal on bonding and the inertance element, and inertance element is a cube that has ten through holes, and ten through holes lay respectively at the place, four summits to angle sections of cubical six face centers and two quadratures.Sealing unit and pressure hull are rigidly connected through O type circle, and sensing unit and inertance element are sealed in the pressure hull.Sealing unit is covered with lateral seal by primary seal lid to be formed, and pressure hull is one and axially has the spheroid of three positive access holes respectively along X, Y, Z, and at through hole and spheres intersect place one plane is arranged, and O type circle groove is arranged on it.
The utility model provides a kind of vector receiver of the novel anti-high hydrostatic pressure under water with the design of Sensitive Apparatus and seal casinghousing one.Withstand voltage mechanism with sensing unit in the design is designed to core; In the normal reliable that can guarantee its acoustical behavior under the 3000m deepwater environment, in the 20-1000Hz frequency range; Utilize topping up that sensitive element circumferential pressure principle for balance is realized; Different amplitude-frequency-the phase-frequency characteristics of the edge constraint of sensitive element are also different under the different liquids condition simultaneously; Therefore utilize the damping characteristic of liquid can also effectively reduce the spurious resonance of low frequency sensitive structure, thereby can improve the low frequency antijamming capability of receiver.In addition; Seal casinghousing adopts mould and sensitive element perfusion to form; Housing not only plays the watertight effect, and is the effect that the ingredient of responsive mechanism plays pedestal, so its design is in the requirement that need take all factors into consideration Several Parameters such as withstand voltage, sensitivity and volume, weight aspect material selection and physical dimension and the density; What adopt here is that the high-strength low-density compound substance is made, and principal ingredient is an epoxy resin.
The main theoretical basis of the reform of Chinese economic structure of the utility model be immersed in the liquid rigid ball under water under the acoustic wave action amplitude of its vibration velocity consistent with the vibration velocity amplitude and the phase place of the liquid medium particle of phase place and rigid ball equivalent sound center; Prerequisite be the size to greatest extent of rigid ball with sound field under water in the wavelength of work sound wave compare enough for a short time, and have the density close with aqueous medium.
The 3000m of the utility model under water with synchronous vibration type vector receiver by the inertance element 1 that has piezoelectric ceramics locating slot 1a, oil hole 1b, trough 1c; With the piezoelectric sensitivity unit 2 that has piezoelectric ceramics 2a, electrode slice 2b; With pressure hull 3 that is threaded hole 3a, seal groove 3b and lateral seal lid 4; Form with the primary seal lid 5 that has seal groove 5a, trough 5b and O-ring seal 6, cable end 7.
At first, piezoelectric ceramics 2a, electrode slice 2b are formed piezoelectric sensitivity unit 2, then it is bonded in the piezoelectric ceramics locating slot 1a of inertance element 1, totally six groups, simultaneously the lead unification is linked output cable head 7 places through trough 1c, trough 5b.The sensing unit 2 and pressure hull 3 perfusions that utilize mould will be bonded on the inertance element 1 again are integral; Utilize O-ring seal 6 to be connected with primary seal lid 5 on lateral seal lid 4 through threaded hole 3a then with pressure hull 3; Oil-filled at last, form a complete withstand voltage nautical receiving set like this.Present this receiver diameter 120mm, withstand voltage 30MPa, working band is 20-1000Hz, sensitivity-196dB in the 2000-3000mm scope under water in the working band, horizontal sound field fluctuation is no more than 2.5dB.
Claims (5)
1. can be used for deep water synchronous vibration type vector receiver under water; It is characterized in that: comprise inertance element, piezoelectric sensitivity unit, pressure hull, sealing unit, cable end; Inertance element is the cube that has ten through holes, and the piezoelectric sensitivity unit comprises six groups of independently piezoelectric patches heaps, and every group of piezoelectric patches heap links to each other with inertance element respectively; Sealing unit comprises lateral seal lid, primary seal lid; Sealing unit and pressure hull are rigidly connected, and sealing unit is sealed in the mechanism of inertance element and piezoelectric sensitivity unit composition in the pressure hull, and primary seal covers the installation cable end.
2. the deep water synchronous vibration type vector receiver under water that can be used for according to claim 1 is characterized in that: described piezoelectric patches heap comprises 4 piezoelectric patches or piezoelectricity pipe, the parallel connection between the piezoelectric patches, the parallel connection between the piezoelectricity pipe.
3. the deep water synchronous vibration type vector receiver under water that can be used for according to claim 1 and 2 is characterized in that: ten through holes of described inertance element lay respectively at the place, four summits to angle sections of cubical six face centers and two quadratures.
4. the deep water synchronous vibration type vector receiver under water that can be used for according to claim 1 and 2; It is characterized in that: described pressure hull is for axially having the spheroid of three positive access holes respectively along X, Y, Z; And at through hole and spheres intersect place one plane is arranged, O type circle groove is arranged on it.
5. the deep water synchronous vibration type vector receiver under water that can be used for according to claim 3; It is characterized in that: described pressure hull is for axially having the spheroid of three positive access holes respectively along X, Y, Z; And at through hole and spheres intersect place one plane is arranged, O type circle groove is arranged on it.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203798335U CN202267530U (en) | 2011-10-08 | 2011-10-08 | Co-vibrating vector receiver used under deep water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203798335U CN202267530U (en) | 2011-10-08 | 2011-10-08 | Co-vibrating vector receiver used under deep water |
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| CN202267530U true CN202267530U (en) | 2012-06-06 |
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| CN2011203798335U Expired - Fee Related CN202267530U (en) | 2011-10-08 | 2011-10-08 | Co-vibrating vector receiver used under deep water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813416A (en) * | 2019-02-19 | 2019-05-28 | 中国人民解放军海军潜艇学院 | A kind of big depth synchronous vibration type vector hydrophone |
-
2011
- 2011-10-08 CN CN2011203798335U patent/CN202267530U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813416A (en) * | 2019-02-19 | 2019-05-28 | 中国人民解放军海军潜艇学院 | A kind of big depth synchronous vibration type vector hydrophone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20141008 |
|
| EXPY | Termination of patent right or utility model |