CN102564565B - Maglev two-dimensional cylindrical vector hydrophone - Google Patents
Maglev two-dimensional cylindrical vector hydrophone Download PDFInfo
- Publication number
- CN102564565B CN102564565B CN 201210010987 CN201210010987A CN102564565B CN 102564565 B CN102564565 B CN 102564565B CN 201210010987 CN201210010987 CN 201210010987 CN 201210010987 A CN201210010987 A CN 201210010987A CN 102564565 B CN102564565 B CN 102564565B
- Authority
- CN
- China
- Prior art keywords
- vector hydrophone
- dimensional cylindrical
- cylindrical vector
- maglev
- curb girder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention provides a maglev two-dimensional cylindrical vector hydrophone, which comprises a two-dimensional cylindrical vector hydrophone. The two-dimensional cylindrical vector hydrophone is arranged in a rigid metallic cylindrical frame with side beams. Diamagnetic graphite sheets are arranged on the two end surfaces of the two-dimensional cylindrical vector hydrophone. Two permanent magnets are embedded on each side beam of the rigid metallic cylindrical frame. The distance between the two permanent magnets is equal to the distance between the diamagnetic graphite sheets on the two end surfaces of the two-dimensional cylindrical vector hydrophone. All permanent magnets at the upper parts of the side beams are arranged on the same plane. All permanent magnets at the lower parts of the side beams are also arranged on the same plane. The two planes are in parallel with each other. The non-contact suspension method can enable the vector hydrophone to be not constrained at all, the vector hydrophone can float freely and the working frequency of the vector hydrophone is not affected.
Description
Technical field
What the present invention relates to is a kind of two-dimensional cylindrical vector hydrophone, particularly a kind of device that can suspend in water the two-dimensional cylindrical vector hydrophone that has neutral buoyancy in water.
Background technology
To be placed in the water measurement point less than wave length of sound, two-dimensional cylindrical vector hydrophone have neutral buoyancy in water, can directly measure the vibration that aqueous medium is given directions, this moment, vector hydrophone will be with the speed motion of water particle, and this motor message is converted to electric signal, truly obtain the method for water particle vibration signal.In actual measurement, for making vector hydrophone be in equilibrium state and avoid being washed away by current, usually adopt the flexible suspension element that vector hydrophone is suspended on a certain framework, hanging element be generally flexible preferably, bungee or the metal spring of sea water resistance, the natural frequency of such flexible suspension element is generally below 10Hz.Be the low frequency vector hydrophone of 1-100Hz for working band, the natural frequency of flexible suspension element has directly affected the low frequency measurement of vector hydrophone, causes certain error to measurement result.Therefore, the flexible suspension element also is regarded as a vitals of vector hydrophone, should fully study it.
Carried out in the world in recent years the research of diamagnetism magnetic levitation and practical application thereof, the sharpest edges of this research are the complete contactless suspension of permanent magnet under passive condition, and are auxiliary without any need for adding, and are called as suspension truly.In July, 1999, A.K.Geim and M.D.Simon first with experimental verification realize with permanent magnet the possibility that diamagnetism suspends.Obtaining a series of applied research achievements aspect passive diamagnetism suspension abroad afterwards.Utilize diamagnetic substance to realize that passive magnetic suspends, and is significant on engineering.In order to realize the suspension of permanent magnet, also need to come with lift magnet the gravity of balance suspended matter in addition in air.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, in water maglev two-dimensional cylindrical vector hydrophone easy to use.
The object of the present invention is achieved like this:
comprise two-dimensional cylindrical vector hydrophone, described two-dimensional cylindrical vector hydrophone is arranged in one with the rigid metal cylindricality framework of curb girder, on two end faces of two-dimensional cylindrical vector hydrophone with the diamagnetism graphite flake, inlay two permanent magnets on every curb girder of rigid metal cylindricality framework, spacing between two permanent magnets equals the spacing between diamagnetism graphite flake on two end faces of two-dimensional cylindrical vector hydrophone, the permanent magnet on each curb girder top is in the same plane, the permanent magnet of each curb girder bottom is also in the same plane, and two plane parallel.
The present invention can also comprise:
Described two-dimensional cylindrical vector hydrophone is cylindrical vector hydrophone, and described rigid metal cylindricality framework with curb girder is cylindrical frame, and described curb girder is evenly distributed on the right cylinder side surface.
Described curb girder is 4.
The upper and lower end face of rigid metal cylindricality framework have respectively four with the fixing circular hole of use of equipment connection.
The same pole that is positioned at conplane permanent magnet is all pointed to planar central.
The present invention is that a kind of other external force that do not rely on only suspend the vector hydrophone with neutral buoyancy with magnetic force in water, this contactless hang can make vector hydrophone not be subjected to any constraint, thereby unmanaged flexibility can not exert an influence to the working band of vector hydrophone yet.
The present invention sticks on two diamagnetism graphite flakes two end faces of two-dimensional cylindrical vector hydrophone, because the density of graphite is smaller, is easy to reach the ensemble average density of vector hydrophone near the requirement of aqueous medium density when design.When this cylindricality vector hydrophone is in the magnetic field of eight permanent magnets, can be subject to slight repulsive force.Because eight permanent magnets are in same plane with two graphite flakes respectively, graphite flake is subject to uniformly radially repulsive force, so realized having the complete contactless stable suspersion of cylindricality vector hydrophone in water of neutral buoyancy.Vector hydrophone is subject to acoustical signal and does the used time, understands free movement on the sagittal plane in metal framework, complete the measurement of 2D signal, and no signal is done the used time, will be in stable suspended state.
Theoretical foundation of the present invention remains the theory with the cylindricality vector hydrophone design of shaking, if namely the physical dimension of the firm cylinder of acoustics is much smaller than wave length of sound, and average density is identical with aqueous medium, when it does free movement under the effect of underwater acoustic wave, the vibration velocity of firm cylinder is equal to the vibration velocity of cylinder geometric center in sound field place water particle, so the cylindricality vector hydrophone can obtain the vibration signal of water particle in sound field.
Advantage of the present invention is: utilize diamagnetic material---graphite flake is as two end faces of two-dimensional cylindrical vector hydrophone, be formed in the vector hydrophone of neutral buoyancy in water, and be placed in rigid frame with permanent magnet, utilize the repulsive force between diamagnetic material and permanent magnet, reached the purpose of cylindricality vector hydrophone complete chainless stable suspersion in water, solved in low frequency (less than 10Hz) situation, the problem of flexible suspension element on the vector hydrophone impact realized the further application of vector hydrophone in low frequency, very low frequency (VLF) scope.Apparatus structure of the present invention is simple, be easy to Project Realization, can be widely used in underwater sound field.
Description of drawings
Accompanying drawing is structural representation of the present invention.
Embodiment
For example the present invention is done more detailed description below in conjunction with accompanying drawing:
When designing and producing the cylindricality vector hydrophone 3 that is suspended in rigid metal cylindricality framework 1, paste respectively graphite flake 4 at two end faces of cylindricality vector hydrophone.Then according to the height of cylindricality vector hydrophone 3, inlay symmetrically eight permanent magnets 2 on four curb girders 5 of rigid metal cylindricality framework 1, eight permanent magnets 2 and two graphite flakes 4 are in respectively on two parallel planes, and the same magnetic pole of eight permanent magnets 2 all points to the center on plane, place.Two end faces up and down at rigid metal cylindricality framework 1 leave respectively four threaded holes 6 symmetrically, are convenient to and being connected of underwater sound equipment.After in water, rigid metal cylindricality framework 1 being fixed to underwater sound equipment, slowly cylindricality vector hydrophone 3 is placed in rigid metal cylindricality framework 1, until cylindricality vector hydrophone 3 stable suspersions are in rigid metal cylindricality framework 1.Described two-dimensional cylindrical vector hydrophone is cylindrical vector hydrophone, and described rigid metal cylindricality framework with curb girder is cylindrical frame, and described curb girder is evenly distributed on the right cylinder side surface.
Claims (9)
1. maglev two-dimensional cylindrical vector hydrophone, comprise two-dimensional cylindrical vector hydrophone, it is characterized in that: described two-dimensional cylindrical vector hydrophone is arranged in one with the rigid metal cylindricality framework of curb girder, on two end faces of two-dimensional cylindrical vector hydrophone with the diamagnetism graphite flake, inlay two permanent magnets on every curb girder of rigid metal cylindricality framework, spacing between two permanent magnets on same curb girder equals the spacing between diamagnetism graphite flake on two end faces of two-dimensional cylindrical vector hydrophone, the permanent magnet on each curb girder top is in the same plane, the permanent magnet of each curb girder bottom is also in the same plane, and two plane parallel.
2. maglev two-dimensional cylindrical vector hydrophone according to claim 1, it is characterized in that: the same pole that is positioned at conplane permanent magnet is all pointed to planar central.
3. maglev two-dimensional cylindrical vector hydrophone according to claim 1 and 2, it is characterized in that: described two-dimensional cylindrical vector hydrophone is cylindrical vector hydrophone, described rigid metal cylindricality framework with curb girder is cylindrical frame, and described curb girder is evenly distributed on the right cylinder side surface.
4. maglev two-dimensional cylindrical vector hydrophone according to claim 1 and 2, it is characterized in that: described curb girder is 4.
5. maglev two-dimensional cylindrical vector hydrophone according to claim 3, it is characterized in that: described curb girder is 4.
6. maglev two-dimensional cylindrical vector hydrophone according to claim 1 and 2 is characterized in that: the upper and lower end face of rigid metal cylindricality framework have respectively four with the fixing circular hole of use of equipment connection.
7. maglev two-dimensional cylindrical vector hydrophone according to claim 3 is characterized in that: the upper and lower end face of rigid metal cylindricality framework have respectively four with the fixing circular hole of use of equipment connection.
8. maglev two-dimensional cylindrical vector hydrophone according to claim 5 is characterized in that: the upper and lower end face of rigid metal cylindricality framework have respectively four with the fixing circular hole of use of equipment connection.
9. maglev two-dimensional cylindrical vector hydrophone according to claim 6 is characterized in that: the upper and lower end face of rigid metal cylindricality framework have respectively four with the fixing circular hole of use of equipment connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210010987 CN102564565B (en) | 2012-01-14 | 2012-01-14 | Maglev two-dimensional cylindrical vector hydrophone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210010987 CN102564565B (en) | 2012-01-14 | 2012-01-14 | Maglev two-dimensional cylindrical vector hydrophone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102564565A CN102564565A (en) | 2012-07-11 |
| CN102564565B true CN102564565B (en) | 2013-05-08 |
Family
ID=46410594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210010987 Expired - Fee Related CN102564565B (en) | 2012-01-14 | 2012-01-14 | Maglev two-dimensional cylindrical vector hydrophone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102564565B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152665B (en) * | 2013-03-01 | 2015-05-20 | 哈尔滨工程大学 | Three-dimensional dual-sphere-shaped intelligent composite vector hydrophone |
| SE537346C2 (en) * | 2013-10-08 | 2015-04-07 | Totalförsvarets Forskningsinstitut | Vector sensor for measuring particle motion in a medium |
| CN105387924B (en) * | 2015-12-31 | 2018-06-26 | 中国人民解放军国防科学技术大学 | A kind of optical fiber vector hydrophone with posture self-rectification function |
| CN110879100B (en) * | 2019-12-25 | 2021-10-01 | 哈尔滨工程大学 | Magnetic suspension two-dimensional displacement vector hydrophone |
| CN110879099B (en) * | 2019-12-25 | 2021-10-01 | 哈尔滨工程大学 | High-sensitivity very-low-frequency displacement vector hydrophone |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0177383B1 (en) * | 1984-08-28 | 1990-05-02 | Commissariat A L'energie Atomique | Broadband omnidirectional elastic wave transducer and method of manufacturing it |
| US5010530A (en) * | 1990-06-26 | 1991-04-23 | The United States Of America As Represented By The Secretary Of The Navy | Magnetic coupler for electroacoustic hydrophones |
| CN101788684A (en) * | 2010-04-09 | 2010-07-28 | 中国科学院地质与地球物理研究所 | Piezoelectric digital seismometer on land |
| CN101819769A (en) * | 2010-03-04 | 2010-09-01 | 哈尔滨工程大学 | Hydroacoustic standing-wave sound field forming apparatus |
-
2012
- 2012-01-14 CN CN 201210010987 patent/CN102564565B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0177383B1 (en) * | 1984-08-28 | 1990-05-02 | Commissariat A L'energie Atomique | Broadband omnidirectional elastic wave transducer and method of manufacturing it |
| US5010530A (en) * | 1990-06-26 | 1991-04-23 | The United States Of America As Represented By The Secretary Of The Navy | Magnetic coupler for electroacoustic hydrophones |
| CN101819769A (en) * | 2010-03-04 | 2010-09-01 | 哈尔滨工程大学 | Hydroacoustic standing-wave sound field forming apparatus |
| CN101788684A (en) * | 2010-04-09 | 2010-07-28 | 中国科学院地质与地球物理研究所 | Piezoelectric digital seismometer on land |
Non-Patent Citations (2)
| Title |
|---|
| 中频三轴向矢量水听器的研究;洪连进等;《振动与冲击》;20111231;第30卷(第3期);79-84 * |
| 洪连进等.中频三轴向矢量水听器的研究.《振动与冲击》.2011,第30卷(第3期),79-84. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102564565A (en) | 2012-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102564565B (en) | Maglev two-dimensional cylindrical vector hydrophone | |
| Hu et al. | Triboelectric nanogenerator built on suspended 3D spiral structure as vibration and positioning sensor and wave energy harvester | |
| CN102594203A (en) | Vertical-vibration horizontal-swinging type power generation device of low frequency large amplitude piezoelectric cantilever beam | |
| CN102624281A (en) | Multidimensional vibration energy collector capable of realizing non-contact excitement | |
| CN105114239B (en) | A kind of controllable posture wave-power device based on linear electric generator | |
| CN102853898B (en) | Three-dimensional MEMS (Micro-electromechanical System) monolithic integrated vector hydrophone | |
| CN208174513U (en) | A kind of novel vibrating energy collecting device | |
| WO2013188215A2 (en) | Electromagnetic energy conversion through coil and magnet arrays | |
| CN106124036A (en) | A kind of novel vibration pickup and Optimization Design thereof | |
| Xie et al. | A study on a high efficient cylinder composite piezoelectric energy harvester | |
| CN202524321U (en) | Vertical-vibration horizontal-swinging type power generation device of low-frequency large-amplitude piezoelectric cantilever beam | |
| CN202524322U (en) | Vertical and horizontal compound excitation type piezoelectric energy harvester | |
| CN102879077B (en) | Co-vibrating vector hydrophone | |
| CN202661068U (en) | Multifunctional underwater sound transducer support | |
| CN202524323U (en) | Contactless actuated multidimensional vibration energy collector | |
| Lee et al. | Low-frequency driven energy harvester with multi-pole magnetic structure | |
| CN106849752A (en) | Flow vibration electricity energy harvester based on Biomimetic Fish | |
| CN205157150U (en) | Magnetic current becomes elastomer intermediate layer roof beam vibration response test system | |
| CN206865378U (en) | A kind of multi-direction vibration energy collector of piezoelectric type | |
| CN204089639U (en) | A kind of energy collecting device | |
| CN202853734U (en) | Flexible hanger bracket for vibration velocity transducer measurement | |
| CN105043530B (en) | Perceive the MEMS sensor and energy collecting device and method that plane omnidirection is vibrated | |
| CN202092769U (en) | Electret vibration sensor | |
| CN103174637B (en) | A kind ofly carry the stable suspension platform device of mechanical pump | |
| CN203708139U (en) | Lever type vibration energy collector based on giant magnetostrictive film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20130508 Termination date: 20210114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |