CN211061047U - Vertical suspension type vector hydrophone array and submerged buoy system - Google Patents
Vertical suspension type vector hydrophone array and submerged buoy system Download PDFInfo
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- CN211061047U CN211061047U CN201921889758.XU CN201921889758U CN211061047U CN 211061047 U CN211061047 U CN 211061047U CN 201921889758 U CN201921889758 U CN 201921889758U CN 211061047 U CN211061047 U CN 211061047U
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Abstract
The utility model discloses a hang type vector hydrophone array and stealthily mark system perpendicularly, form by a plurality of array unit combinations, every the structure of array unit is: the two ends of the sound-transmitting outer sheath are respectively provided with a sealed cavity formed by a blocking core, a vibration-damping framework and a watertight bin body are arranged in the sound-transmitting outer sheath in a hanging mode, the vector hydrophone is arranged in the vibration-damping framework in a hanging mode through a vibration-damping spring, the light path beam splitter/combiner is arranged in the watertight bin body in a sealing mode, the light path beam splitter/combiner is connected with the vector hydrophone and carries out signal transmission through a transmission cable, and sound-transmitting inert oil is filled in the sound-transmitting outer sheath. The utility model discloses be equipped with the damping skeleton in the acoustically transparent oversheath of array unit, the vector hydrophone passes through the unsettled setting of damping spring in the damping skeleton, combines the inside liquid filler of array, plays and keeps apart external vibration, avoids external vibration directly to use the vector hydrophone, produces interference signal's purpose.
Description
Technical Field
The utility model relates to a vector hydrophone array especially relates to a perpendicular suspension type vector hydrophone array and submerged buoy system.
Background
The submerged buoy system is important technical equipment for ocean monitoring, has the characteristic of monitoring the ocean situation for a long time, continuously and automatically in an unattended manner under severe environment, and is an important development direction and means for offshore monitoring. The submerged buoy is moored below the sea surface and can be recovered through the release device, and has the advantages of good concealment and difficult damage, so that the submerged buoy is more and more emphasized by various marine countries in the world.
Patent 2014104290342 discloses an optical fiber hydrophone probe packaging structure and an optical fiber hydrophone array, wherein the connection and packaging of multiple probes in array are armored optical cables to protect the optical fibers among the probes, and the optical fiber hydrophone probe packaging structure has good watertight and mechanical properties. The two ends of the acoustic sensor are connected with the armored optical cable through the pressure plate connectors, the transition connecting sleeves are sleeved outside the pressure plate connectors for sealing, the connecting sleeves are provided with a plurality of fixing holes for fixing the Kevlar ropes and improving the tensile strength of the array detection cable, and the structure is high in reliability, good in water tightness, strong in deep water pressure resistance and easy to achieve engineering and batch assembly.
Patent 2016109184033 discloses a solid-state towed sonar linear array and an assembling method thereof, wherein the array adopts a solid-state colloid filling mode, and devices such as a probe and the like are sealed by using an acoustic material alone, so that the acceleration sensitivity of the probe is prevented from being influenced by the colloid entering the probe. Compared with liquid filling, the method has the following advantages: the flow noise is small, the reliability of the array is high, and once the array is damaged, the pollution to the marine environment can not be generated.
The above patents still have some disadvantages: (1) a plurality of hydrophones are distributed in the PU sheath of each array unit, large-scale pipe-entering equipment is needed, and oil filling and bubble removing are inconvenient; (2) the arrays are directly connected through Kevlar ropes, relative shaking can occur between adjacent arrays under the fluctuation of seawater, and the array postures are difficult to control, so that the monitoring effect is influenced; (3) external vibrations acting directly on the hydrophone can produce interfering signals that affect the sensitivity of the hydrophone.
SUMMERY OF THE UTILITY MODEL
The present application is directed to solving at least one of the problems in the prior art. Therefore, an object of the present invention is to provide a vertical suspension type vector hydrophone array and a submerged buoy system, wherein the array has the advantages of convenient formation, high hydrostatic pressure resistance and strong interference resistance.
In order to solve the technical problem, the following technical scheme is adopted in the application:
A vertical suspension type vector hydrophone array is formed by combining a plurality of array units, and each array unit has the structure that: two ends of the sound-transmitting outer sheath are respectively provided with a plug core to form a sealed cavity, a vibration-damping framework and a watertight bin body are arranged in the sound-transmitting outer sheath, the vector hydrophone is suspended in the vibration-damping framework through a vibration-damping spring, the light path beam splitter/combiner is hermetically arranged in the watertight bin body, the light path beam splitter/combiner is connected with the vector hydrophone and performs signal transmission through a transmission cable, and sound-transmitting inert oil is filled in the sound-transmitting outer sheath.
Furthermore, a plurality of array units are connected into an array through composite bearing ropes, and any adjacent array units are supported by adopting a light framework, so that the overall density of the array after array formation is close to that of seawater.
Furthermore, a plurality of composite bearing ropes are uniformly distributed outside the sound-transmitting outer sheath, and the light skeleton is fixedly connected with the composite bearing ropes.
Furthermore, the outer layer of the composite bearing rope is an ultra-high molecular polyethylene rope, and the inner layer is a high-strength Kevlar rope.
Further, the transmission cable passes through the light-weight framework.
Furthermore, the sound-transmitting outer sheath is made of flexible polyether polyurethane.
A submerged buoy system comprises an anchor system, an electronic cabin, a floating ball and the vector hydrophone array, wherein the anchor system is arranged at the bottom end of the vector hydrophone array, the vector hydrophone array is connected with the electronic cabin through a transmission cable, and the electronic cabin is connected with the floating ball through a bearing rope.
Compared with the prior art, the utility model has the advantages of:
1. The anti-interference performance is strong: the array unit is provided with a vibration reduction framework in the sound-transmitting outer sheath, the vector hydrophone is arranged in the vibration reduction framework in a suspension mode through the vibration reduction springs, and the liquid filling agent (as damping) in the array is combined, so that the external vibration can be isolated, and the purpose that the external vibration is directly applied to the vector hydrophone to generate interference signals is avoided.
2. High hydrostatic pressure resistance: liquid is filled in the single array unit to realize internal and external isobaric pressure; the light path beam splitter/combiner is sealed and protected by a special watertight cabin; theoretically, the array can realize a large-depth application water depth environment only by meeting the pressure resistance limit of the vector hydrophone.
3. The formation is convenient: the array units are sealed independently, compared with the traditional mode that the PU sheath is sleeved on the whole array, large-scale pipe entering equipment is not needed, and oil filling, bubble removal and the like are relatively simple; the structural forms of the single array units are the same, and batch production can be simultaneously carried out; the array units are connected by adopting a transmission cable with sealing heads at two ends, the operation is convenient, and the distance between the array units can be adjusted at will;
4. And (3) lightening: compared with the traditional array, only the position of a single array unit is filled with oil, and the light framework between the array units is directly exposed in seawater, so that the weight of the array is reduced; the light framework is prepared by adopting the low-density solid buoyancy material and is arranged between the adjacent array units, so that the whole array has zero buoyancy, the transportation and the arrangement are convenient, and the stability of the array in the application process is improved.
To sum up, the utility model discloses hang perpendicularly and put type vector hydrophone array through the mountable vector hydrophone of rational design, connect the vector hydrophone according to certain multiplexing mode and form the linear array, array unit interval is adjustable, the array has become characteristics such as battle array convenience, sealed reliable, resistant high hydrostatic pressure.
Drawings
FIG. 1 is a schematic diagram of a submerged buoy system;
FIG. 2 is a schematic diagram of a single array element;
FIG. 3 is a schematic diagram of the array composition.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, a submerged buoy system comprises an anchor system 1, an electronic cabin 2, a floating ball 3 and a vector hydrophone array 4. The bottom end of the vector hydrophone array 4 is connected with the anchoring system 1, the top end of the vector hydrophone array 4 is electrically connected with the electronic cabin 2 through the transmission cable 5, and the electronic cabin 2 is connected with the floating ball 3 through the bearing rope 6. The anchor system 1, the electronic cabin 2 and the control circuit formed between the two are all the existing structures, and are not described again, and the improved emphasis of the application lies in the vector hydrophone array 4.
Referring to fig. 2 and 3, the vector hydrophone array 4 of the submerged buoy system of the present embodiment is formed by combining a plurality of array units, and each array unit has a structure that: two ends of the sound-transmitting outer sheath 401 are respectively provided with a sealed cavity formed by a plug core 402, a vibration-damping framework 403 and a watertight cabin 404 are arranged in the sound-transmitting outer sheath 401 in a suspended mode, a vector hydrophone 405 is arranged in the vibration-damping framework 403 in a suspended mode through a vibration-damping spring 406, an optical path beam splitter/combiner 407 is arranged in the watertight cabin 404 in a sealed mode, the optical path beam splitter/combiner 407 is connected with the vector hydrophone 405 and carries out signal transmission through a transmission cable 5, sound-transmitting inert oil (not shown in the figure) such as silicon oil is filled in the sound-transmitting outer sheath 401, the vector hydrophone 405 is isolated from external seawater, and meanwhile the requirement of sound transmission is met.
In the embodiment, a similar vibration damping mechanism as that described in patent 2013203901706 is arranged in an acoustically transparent outer sheath 401 of an array unit, a vector hydrophone 405 is suspended in a vibration damping framework 403 through a vibration damping spring 406, and external vibration is isolated by combining acoustically transparent inert oil (as damping) in the array, so that the purpose of preventing the external vibration from being directly applied to the vector hydrophone to generate an interference signal is achieved. The optical fiber or cable inside the transmission cable 5 is a multi-core structure, and generally 8 array elements or multiple of 8 array elements (such as 32, 64) perform optical path transmission through two optical fibers, one above the other. The specific structures and the circuit structures of the optical splitter/combiner 407 and the vector hydrophone 405 are well known in the art, and will not be repeated here.
In the embodiment, liquid is filled in a single array unit to realize internal and external isobaric pressure; the light path beam splitter/combiner 407 and the welding points are sealed and protected by a special watertight cabin 404, the structural strength of the watertight cabin 404 is designed according to the maximum application water depth of the array, theoretically, only the pressure resistance limit of the vector hydrophone is needed to be met, and the array can realize a large-depth application water depth environment.
It can be understood that the vector hydrophone 405 is suspended in the vibration damping framework 403 through the pair of vibration damping springs 406 symmetrically arranged at the upper part and the pair of vibration damping springs 406 symmetrically arranged at the lower part, and the vector hydrophone 405 is fixed in the vibration damping framework 403 through the plurality of pairs of vibration damping springs 406 symmetrically arranged, so that the overall isolation of external vibration can be realized.
Preferably, in order to facilitate the connection of the damper spring 406, hooks for hanging two ends of the damper spring 406 are arranged on the vector hydrophone 405 and the damper framework 403, two ends of the damper spring 406 are hung on the hooks on the vector hydrophone 405 and the damper framework 403 respectively and are in a tensioned state, and the damper spring 406 is convenient to install.
Referring to fig. 3, in some embodiments, several array units are passed through a composite messenger line 409 are connected into an array, any adjacent array units are supported by a light framework 408, and the light framework 408 has low density (generally, the density is lower than 0.6 g/cm) 3) The solid buoyancy material is prepared, so that the effect of reducing the integral sealing of the array is achieved, and the integral density of the array after array formation is close to that of seawater.
This embodiment is equipped with light skeleton 408 between adjacent array unit, unanimous with the whole ratio control of array density and sea water density, compares traditional array, and this implementation can realize the whole zero buoyancy of array, and the control array gesture that can be better after laying avoids the dislocation between the array element, has realized the array lightweight moreover, makes things convenient for array transportation and laying.
Specifically, the sound-transmitting outer sheath 401 is made of flexible polyether polyurethane, can resist seawater corrosion and long-term hydrolysis, is filled with sound-transmitting inert oil, can realize internal and external isobaric pressure on the premise of ensuring that no air bubbles exist in the array unit, and can theoretically meet the application environment of sea depth in the whole sea area.
It can be understood that, in practical application, a plurality of array units are connected into an array through composite bearing ropes 409, the composite bearing ropes 409 are circumferentially arranged along the sound-transmitting outer sheath 401, and the array units are connected with the composite bearing ropes 409 through fastening structures 4010 such as connecting flanges and the like; the light framework 408 is arranged in a space surrounded by a plurality of composite bearing ropes 409 and is fixedly connected with the composite bearing ropes 409, the transmission cable 5 for connecting adjacent array units penetrates through the light framework 408 and is connected through the sealing connection joints 4011 at two ends, and the sealing connection joints 4011 can adopt a plug-in structure, are convenient to disassemble and are convenient to form arrays and test and maintain.
The composite bearing rope 409 generally adopts 4 strands or 6 strands of different strands, the outer layer is an ultrahigh molecular polyethylene rope resistant to seawater corrosion, the inner layer is a high-strength Kevlar rope, and the composite bearing rope has high strength and performance of being not easy to hydrolyze and can meet the application environment of long-term seawater soaking; the array unit pitch and the number of array units can be adjusted according to the overall technical index requirement.
The working principle of the submerged buoy system of the embodiment is as follows: electric pulse optical signals sent by the photoelectrolysis modulation system in the electronic cabin 2 enter the vector hydrophone array 4 through the transmission cable 5, enter the watertight cabin body in the array through the downlink main optical path, enter each vector hydrophone 405 unit through the optical path beam splitter/combiner 407, external underwater acoustic signals act on the vector hydrophone 405 units to modulate the optical pulse signals (to cause the change of optical phase and intensity), the optical signals after acoustic modulation return to the watertight cabin body in the array, are collected into the uplink main optical path through the optical path beam splitter/combiner 407, are transmitted into the photoelectric demodulation system through the transmission cable 5, are subjected to multichannel digital acoustic signals obtained through modulation processing, are subjected to comprehensive processing finally, and the processed results are recorded on recording equipment.
Referring to fig. 2 and fig. 3, the array formation process of the array of the present invention is:
(1) Connecting the 2 plugging cores 402 through tensile members, wherein the length of the plugging cores meets the installation space of the vector hydrophone 405 and the watertight cabin body;
(2) Connecting the vector hydrophone 405 with the vibration reduction framework 403, and fixing a tensile member between the vibration reduction framework 403 and the plug core 402;
(3) Introducing the transmission cable 5 and the optical cables of the vector hydrophone 405 into the watertight cabin body to be connected with the optical path beam splitter/combiner 407, and sealing the watertight cabin body;
(4) An acoustic-transparent outer sheath 401 is sleeved on the array unit, the length of a single array unit is generally not more than 0.6m, and the array unit can be directly put into a pipe;
(5) Installing a pressing ring 4013 and performing pressing sealing;
(6) Filling acoustically transparent inert oil into the acoustically transparent outer sheath 401 from an oil filling port of the plug core 402, filling oil into one end of the acoustically transparent inert oil, vacuumizing the other end of the acoustically transparent inert oil, and sealing the acoustically transparent inert oil after the acoustically transparent inert oil is filled;
(7) Calculating the whole length of the array according to the number of array units and the array unit distance of the array, and moving the single composite bearing rope 409 back and forth in a Chinese character 'jing' shape to form a 4-strand structure;
(8) The single array unit and the light framework 408 are fixedly connected with the composite carrier rope 409 according to the requirement and the distance;
(9) The transmission cables 5 between the adjacent array units are connected and sealed;
(10) And testing normally to finish the array manufacturing.
The above examples are merely illustrative of the present invention clearly and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Nor is it intended to be exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.
Claims (8)
1. A vertical suspension type vector hydrophone array is formed by combining a plurality of array units, and is characterized in that each array unit has the structure as follows: two ends of the sound-transmitting outer sheath are respectively provided with a plug core to form a sealed cavity, a vibration-damping framework and a watertight bin body are arranged in the sound-transmitting outer sheath, the vector hydrophone is suspended in the vibration-damping framework through a vibration-damping spring, the light path beam splitter/combiner is hermetically arranged in the watertight bin body, the light path beam splitter/combiner is connected with the vector hydrophone and performs signal transmission through a transmission cable, and sound-transmitting inert oil is filled in the sound-transmitting outer sheath.
2. The vertical suspended vector hydrophone array of claim 1, wherein: a plurality of array units are connected into an array through composite bearing ropes, and any adjacent array units are supported by adopting a light framework, so that the overall density of the array after array formation is close to that of seawater.
3. The vertical suspended vector hydrophone array of claim 2, wherein: and a plurality of composite bearing ropes are uniformly distributed outside the sound-transmitting outer sheath, and the light framework is fixedly connected with the composite bearing ropes.
4. The vertical suspended vector hydrophone array of claim 3, wherein: the outer layer of the composite bearing rope is an ultra-high molecular polyethylene rope, and the inner layer is a high-strength Kevlar rope.
5. The vertical suspended vector hydrophone array of claim 3, wherein: the transmission cable passes through the light skeleton.
6. The vertical suspended vector hydrophone array of claim 1, wherein: the material of sound-transmitting outer sheath is flexible polyether polyurethane.
7. The vertical suspended vector hydrophone array of claim 1, wherein: and adjacent array units are connected through transmission cables with sealed connectors at two ends.
8. A submerged buoy system, characterized by: comprising an anchor system, an array of vector hydrophones according to any one of claims 1 to 7, an electronic capsule and a floating ball connected in series.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921889758.XU CN211061047U (en) | 2019-11-06 | 2019-11-06 | Vertical suspension type vector hydrophone array and submerged buoy system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921889758.XU CN211061047U (en) | 2019-11-06 | 2019-11-06 | Vertical suspension type vector hydrophone array and submerged buoy system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459591A (en) * | 2021-12-28 | 2022-05-10 | 南方海洋科学与工程广东省实验室(广州) | Deep-sea high-sensitivity optical fiber vector acoustic detection subsurface buoy device and system |
| CN114910154A (en) * | 2022-04-26 | 2022-08-16 | 南京锐声海洋科技有限公司 | Side-hanging hydrophone fiber damping array and preparation method thereof |
| CN116929538A (en) * | 2023-07-27 | 2023-10-24 | 山东博华电子科技发展有限公司 | Hydrophone with attitude control function and monitoring equipment thereof |
| CN114459591B (en) * | 2021-12-28 | 2024-04-26 | 南方海洋科学与工程广东省实验室(广州) | Deep sea high-sensitivity optical fiber vector acoustic detection submerged buoy device and system |
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2019
- 2019-11-06 CN CN201921889758.XU patent/CN211061047U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459591A (en) * | 2021-12-28 | 2022-05-10 | 南方海洋科学与工程广东省实验室(广州) | Deep-sea high-sensitivity optical fiber vector acoustic detection subsurface buoy device and system |
| CN114459591B (en) * | 2021-12-28 | 2024-04-26 | 南方海洋科学与工程广东省实验室(广州) | Deep sea high-sensitivity optical fiber vector acoustic detection submerged buoy device and system |
| CN114910154A (en) * | 2022-04-26 | 2022-08-16 | 南京锐声海洋科技有限公司 | Side-hanging hydrophone fiber damping array and preparation method thereof |
| CN114910154B (en) * | 2022-04-26 | 2023-12-05 | 南京锐声海洋科技有限公司 | Side-hanging hydrophone fiber damping array and preparation method thereof |
| CN116929538A (en) * | 2023-07-27 | 2023-10-24 | 山东博华电子科技发展有限公司 | Hydrophone with attitude control function and monitoring equipment thereof |
| CN116929538B (en) * | 2023-07-27 | 2024-01-23 | 山东博华电子科技发展有限公司 | Hydrophone with attitude control function and monitoring equipment thereof |
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