CN114659615A - Hydrophone nested fiber damping array and processing method - Google Patents
Hydrophone nested fiber damping array and processing method Download PDFInfo
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- CN114659615A CN114659615A CN202210290696.0A CN202210290696A CN114659615A CN 114659615 A CN114659615 A CN 114659615A CN 202210290696 A CN202210290696 A CN 202210290696A CN 114659615 A CN114659615 A CN 114659615A
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- 239000000835 fiber Substances 0.000 title claims abstract description 98
- 238000013016 damping Methods 0.000 title claims abstract description 89
- 238000003672 processing method Methods 0.000 title claims abstract description 6
- 238000005538 encapsulation Methods 0.000 claims description 11
- 238000009941 weaving Methods 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 claims description 5
- 239000002655 kraft paper Substances 0.000 claims description 4
- 238000004382 potting Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- WABPQHHGFIMREM-BJUDXGSMSA-N lead-206 Chemical compound [206Pb] WABPQHHGFIMREM-BJUDXGSMSA-N 0.000 description 2
- WABPQHHGFIMREM-IGMARMGPSA-N lead-207 Chemical compound [207Pb] WABPQHHGFIMREM-IGMARMGPSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001200 Ferrotitanium Inorganic materials 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
- G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
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- General Physics & Mathematics (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a hydrophone nested fiber damping array and a processing method thereof, wherein the hydrophone nested fiber damping array comprises a main cable, a plurality of hydrophone array elements nested on the main cable, and signal wires which are arranged in the main cable and connected with the hydrophone array elements, wherein the hydrophone array elements are arranged at intervals along the length direction of the main cable; the hydrophone array element comprises a hydrophone shell, a hydrophone body element arranged in the hydrophone shell and a supporting piece sleeved on the periphery of the main cable, wherein the hydrophone body element is sleeved on the periphery of the supporting piece. The hydrophone is embedded at the periphery of the main cable in a tubular structure, the main cable penetrates through a circular hole in the middle of the hydrophone to solidify the hydrophone on the array cable into a whole, the hydrophone does not need to be paid out, great convenience is brought to the use of the array cable, the array element volume of the hydrophone nested array is small, the close arrangement of the hydrophone can be conveniently realized, and the beam forming angle of the hydrophone nested array is richer.
Description
Technical Field
The invention relates to a fiber damping array structure system for reducing shake generated by dragging or water flow action of an underwater sensor array, in particular to a hydrophone nested fiber array structure for underwater sound wave information pickup and a processing method thereof.
Background
The hydrophone array system is widely applied to the field of underwater acoustic engineering, is mainly applied to picking up underwater environment noise information and target sound information, and is two focuses of paying attention to reducing background noise of a receiving array cable and improving the use convenience of the array cable. The array element number of the conventional linear array is more, the signal transmission main cable has more cores, and the common oil-filled cable or gel-filled solid cable signal transmission line passes through the hydrophone from the side surface at some distances away from the hydrophone, so that the phenomenon that the transmission line shields sound waves to generate adverse influence on the receiving directivity of the hydrophone is avoided, the outer diameter of the whole array cable is increased, and the use difficulty is improved. The other cable array solution is that the hydrophone is arranged on the side of the main signal transmission cable, and a certain distance is paid out, so that the influence of the main cable on the sound wave received by the hydrophone is avoided, the manufacturing difficulty and the manufacturing cost of the array cable are increased, and troubles and potential safety hazards are brought to the use.
Aiming at the requirement of reducing the background noise of the array cable, two solutions are provided, one is to add a vibration reduction section of dozens of meters at the front end of the array cable, the longer the vibration reduction section is, the more obvious the vibration reduction effect is, because a signal transmission cable needs to pass through the vibration reduction section, the crosstalk and attenuation among signals can be larger, which is contradictory to the original intention of improving the received signal, and the cost of the array cable is obviously increased. The other method is that a certain length of streamer is bound on the outer side of the main cable, a certain noise reduction effect can be generated, the streamer is limited by the width of the streamer, the adding density is limited, the length of the streamer can be lengthened under the condition that the density of the streamer is limited, the effect of reducing the background noise of the array cable can be achieved, and the long streamers are wound and damaged mutually and cannot exceed 20 cm.
Disclosure of Invention
The invention aims to: in order to measure weak underwater environment noise and target sound information and overcome some defects of the existing array system, the invention provides a hydrophone nested fiber damping array. In addition, compared with a large hydrophone expenditure structure, the array element of the hydrophone nested array has a small volume, and the hydrophone can be conveniently densely arranged, so that the beam forming angle of the hydrophone nested array is richer, and the application range of the nested array cable is larger.
The technical scheme is as follows: the invention discloses a hydrophone nested fiber damping array, which comprises a main cable, a plurality of hydrophone array elements nested on the main cable, and signal wires arranged in the main cable and connected with the hydrophone array elements, wherein the hydrophone array elements are arranged at intervals along the length direction of the main cable; the hydrophone array element comprises a hydrophone shell, a hydrophone main body element arranged in the hydrophone shell and a supporting piece sleeved on the periphery of the main cable, wherein the hydrophone main body element is sleeved on the periphery of the supporting piece.
As a preferred structure of the invention, a plurality of damping fiber bundles distributed at intervals are arranged on the periphery of the main cable and/or the hydrophone array element; and/or the damping fiber bundles are in a fiber fluffy structure; and/or the damping fiber bundles are uniformly distributed on the circumference of the main cable and/or the hydrophone array element at an angle of 90 degrees; and/or the damping fiber bundle is a bent damping fiber bundle.
As a preferred structure of the invention, the hydrophone body element is sleeved on the periphery of the support element through a limiting groove; and/or the size of the limiting groove is matched with that of the hydrophone body element.
As a preferred structure of the present invention, the hydrophone body element and the support member are provided with a first potting layer on the outer periphery.
The invention comprises an instrument cabin arranged at the top end of a main cable and a sinking block arranged at the bottom end of the main cable.
As a preferable structure of the invention, the sinking block is connected with the main cable through a tail end bearing hanging ring, and a parallel releaser is arranged between the sinking block and the tail end bearing hanging ring.
As a preferable structure of the present invention, the main cable is connected to the instrument chamber through a watertight connector.
As a preferable structure of the invention, the main cable sequentially comprises a Kafu pull bearing piece, signal wires distributed on the periphery of the Kafu pull bearing piece, a main cable watertight outer sheath arranged on the periphery of the signal wires and a damping fiber woven layer arranged on the periphery of the main cable watertight outer sheath from inside to outside.
As a preferable structure of the present invention, the damping fiber braided layer leads out a damping fiber bundle.
The processing method of the hydrophone nested fiber damping array comprises the following steps:
(S0) pretreatment of the fiber bundle: twisting a plurality of damping fiber yarns in a plying manner to form a bending damping fiber;
(S1) embedding the hydrophone main body element in a limiting groove of a support piece, carrying out primary encapsulation on the installed structure, forming a first encapsulation layer on the periphery of the hydrophone main body element, and leading out a hydrophone positive end lead and a hydrophone negative end lead to form a main body of the hydrophone array element with a circular ring-shaped section;
(S2) sleeving the main body of the hydrophone array element formed in the step (S1) on the corresponding position of the main cable, connecting the positive and negative leads of the hydrophone to the corresponding signal lines, and performing secondary vulcanization encapsulation on the hydrophone array element and the main cable to form a hydrophone shell so that the hydrophone array element and the main cable form an integrated structure;
(S3) weaving and leading out the pretreated damping fiber bundle outside an integrated structure formed by the hydrophone array elements and the main cable, and performing fluffing treatment on the damping fiber bundle to enable bent fibers in the same and/or adjacent damping fiber bundles to be mutually wound to form a damping fluffy structure, so that the hydrophone nested fiber damping array is obtained. Has the advantages that: (1) the hydrophone array element is embedded at the periphery of the main cable in a tubular structure, the main cable penetrates through a circular hole in the middle of the hydrophone, and the hydrophone is solidified on the array cable into a whole, so that the hydrophone is not required to be paid out, and great convenience is brought to the use of the array cable; (2) the fiber damping fiber woven on the outer layer of the main cable and the hydrophone array element covers the whole array cable and the hydrophone array element, and various noises of the array cable are obviously reduced; (3) the hydrophone array element is nested at the periphery of the main array cable, so that the arrangement and the recovery are more convenient; (4) the hydrophone array element of the invention adopts a nesting mode to occupy smaller space, allows the hydrophone to be densely arranged and can cover a higher frequency range when array cable wave beam formation is needed.
Drawings
Fig. 1 is a schematic view of a connection structure of a hydrophone array element and a main cable according to the present invention;
FIG. 2 is a schematic cross-sectional view of a main cable according to the present invention;
FIG. 3 is a schematic diagram of the overall structure of a nested array of hydrophones in accordance with the present invention.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments with reference to the accompanying drawings.
Example 1: the hydrophone nested fiber damping array comprises a main cable 1 and a plurality of hydrophone array elements 2 sleeved on the main cable 1, wherein the hydrophone array elements 2 are arranged at intervals from top to bottom along the main cable 1. The main cable 1 sequentially comprises a Kraft pulling bearing part 101, signal wires 3 distributed on the periphery of the Kraft pulling bearing part 101, a main cable watertight outer sheath 102 arranged on the periphery of the signal wires 3 and a damping fiber woven layer 103 arranged on the periphery of the main cable watertight outer sheath 102 from inside to outside. Damping tow 4 is drawn forth to damping fibre weaving layer 103, and damping tow 4 is the fluffy structure of fibre, and damping tow 4 distributes in the outer wall circumference of main rope 1, and damping tow 4 can be for irregularly arranging in main rope 1 periphery, and as an optimal selection structure of this embodiment, damping tow 4 is 90 equipartition on the circumference of main rope 1, and four rows of damping tow 4 are arranged to the periphery of main rope 1 promptly.
As shown in fig. 2, the center of the main cable 1 is a kaff pull bearing part 101, the upper end of the main cable is fixed with the watertight connector 7, the lower end of the main cable is connected with a bearing hanging ring 601 at the tail end of the array cable, the main cable is provided with a pulling force, the strength of the main cable is determined by the thickness of the bearing part, in a specific application example, the diameter of the kaff pull bearing part is 10mm, the breaking pulling force is not less than 7 tons, and the strength requirement of the main cable 1 is met. A plurality of twisted pairs are distributed around the bearing member as signal lines 3, each nested hydrophone array element is connected with a pair of twisted pairs, and the number of the twisted pairs is consistent with that of the hydrophone array elements 2. For example, in a specific application example, the number of the twisted pairs is 32, the main cable watertight outer sheath 102 is arranged on the outer side of the twisted pair wire bundle, the material of the main cable watertight outer sheath is polyether polyurethane, and the main cable watertight outer sheath has good hydrophobic characteristics, and in the specific application example, the wall thickness of the main cable watertight outer sheath is 2mm, so that the whole array cable can be used at the 6000m depth without water leakage and water seepage. The outermost layer of the main cable is a damping fiber woven layer 103 which has high strength and good wear resistance, on one hand, the main cable is protected, on the other hand, damping fiber bundles 4 are led out in the weaving process, and the damping fiber bundles are made of ultra-high molecular weight fiber materials. The damping fiber bundles 4 are divided into 4 rows on the woven layer and led out.
The top of main push-towing rope 1 is provided with instrument cabin 5, and the bottom of main push-towing rope 1 is provided with sinker 6. The main cable 1 is connected to the instrument chamber 5 through a watertight connector 7 (in this embodiment, the watertight connector 7 is a multi-core connector of titanium steel structure), and the signal line 3 passes through the watertight connector to transmit a signal to the instrument chamber 5. The sinking mass 6 is connected with the main cable 1 through a tail end bearing hanging ring 501, a parallel releaser 602 is arranged between the sinking mass 6 and the tail end bearing hanging ring 601, one end of the parallel releaser 602 is connected with the bearing hanging ring 601 through a Kaff stretch 603, and the other end of the parallel releaser 602 is connected with the sinking mass 6 through a steel wire rope 604.
As shown in figure 3, in actual use, the upper end of the main cable 1 is connected to the lower end of the instrument cabin 5 through a watertight connector 7, and the instrument cabin 5 has a floating function and provides buoyancy for the system underwater. The lower end of the array is hooked with a suspended sinking block 6 through a parallel releaser 602 and anchored on the seabed, and the whole array is in a vertical state through the floating force of an instrument cabin 5.
As shown in fig. 1, the hydrophone array element 2 in the invention adopts a tubular structure, the main cable 1 penetrates through a round hole in the middle of the hydrophone array element 2, and the hydrophone array element 2 is solidified on the main cable 1 into a whole through vulcanization encapsulation, so that a hydrophone does not need to be supported, and great convenience is brought to the use of the whole array cable. Specifically, the hydrophone array element 2 comprises a hydrophone housing 201 nested on the periphery of the main cable 1, and a hydrophone body element 202 is mounted in the hydrophone housing 201. The hydrophone body element 202 is fixed on the outer wall of the main cable 1 through the support piece 203, the support piece 203 is also of a hollow cylindrical structure (the support piece 203 is a metal support piece), the outer wall of the support piece 203 is concave to form a limiting groove 204, the upper end and the lower end of the limiting groove 204 form limiting steps, the hydrophone body element 202 is installed in the limiting groove 204, and the size of the limiting groove 204 is the same as that of the hydrophone body element 202. In this embodiment, the hydrophone main body element 202 is a circular piezoelectric ceramic tube formed by splicing a left half and a right half, the left half and the right half are spliced on the periphery of the support member 203, the circular piezoelectric ceramic tube includes an inner layer and an outer layer, the inner layer of the piezoelectric ceramic tube serves as the anode of the hydrophone main body element 202, the outer layer serves as the cathode of the hydrophone main body element 202, and as shown in fig. 1, the anode and the cathode of the hydrophone main body element 202 are connected to the signal line 3 through a positive lead 206 and a negative lead 207, respectively. The hydrophone body element 202 and the periphery of the support member 203 are encapsulated to form a first encapsulating layer 205, and after installation, a hydrophone housing 201 (also referred to as a second encapsulating layer) is formed on the outer side of the first encapsulating layer 205 through second vulcanization encapsulation, so that the hydrophone array element 2 and the main cable 1 form a whole, namely, an integrated structure. In this embodiment, the damping fiber bundle 4 is a curved fiber bundle formed by twisting a plurality of strands of fibers in a twisted manner.
As a specific application structure, the fiber damping array arranges all the nested hydrophone array elements according to the pre-designed position. In this example, the number of the array elements of the nested hydrophone is 32 elements, the array elements are uniformly arranged, the distance is 10m, and the number and the arrangement of the array elements are not limited to the parameters in this embodiment and can be designed arbitrarily according to requirements. In specific application, the length of 4 rows of fiber damping fibers distributed on a main cable of the fiber damping array is 12cm, the fibers are processed into a bent fluffy structure (damping fluffy structure), the hydrophilic performance is increased, the damping of the main cable is improved, and the noise is reduced (the damping fluffy structure can also be called as a hair fluffy structure or a fiber fluffy structure, and the fibers are in a fluffy structure formed by winding curled hair/fiber damping fiber bundles).
As a specific application structure, in the present embodiment, a plurality of damping fiber bundles distributed at intervals are disposed on the outer peripheries of the main cable 1 and the hydrophone array element 2. Furthermore, it can also be said that, a plurality of damping fiber bundles distributed at intervals in the circumferential direction are uniformly arranged on the outer side of the integrated structure formed by the hydrophone array element 2 and the main cable 1 from top to bottom. Certainly, according to the actual situation, a plurality of damping fiber bundles distributed at intervals in the circumferential direction may be arranged at selective positions (for example, at the position where only the main cable is arranged at the outer side of the integrated structure, at the position where the hydrophone array element is arranged at the outer side of the integrated structure, or at the position where only the main cable is arranged at the outer side of the integrated structure and/or at the position where the hydrophone array element is arranged at the outer side of the integrated structure).
The damping array is processed and prepared by the following method:
(S0) pretreatment of the fiber bundle: twisting a plurality of fiber strands to form a bent damping fiber bundle; the diameter of the damping fiber bundle can be adjusted according to actual conditions;
(S1) processing a limiting groove 204 on the outer wall of a circular tube-shaped supporting piece 203, nesting a hydrophone main body element 202 in the limiting groove 204 on the outer wall of the supporting piece 203, carrying out primary encapsulation on the mounted structure, forming a first encapsulation layer 205 on the periphery of the hydrophone main body element 202, leading out a hydrophone positive end lead 206 and a hydrophone negative end lead 207, and forming a main body of the hydrophone array element with a circular ring-shaped section;
(S2) sleeving the main body of the hydrophone array element formed in the step (S1) on the corresponding position of the main cable 1, nesting the 32-element hydrophone array element together, connecting the lead wires at the positive end and the negative end of the hydrophone to the corresponding signal wires 3, and performing secondary vulcanization encapsulation on the hydrophone array element 2 and the main cable 1 to form a hydrophone shell 201 so that the hydrophone array element 2 and the main cable 1 are integrated;
(S3) weaving a damping fiber woven layer 103 by using the bending damping fiber bundles obtained in the step (S0) outside an integrated structure formed by the hydrophone array element 2 and the main cable 1, and alternately leading out a plurality of damping fiber bundles 4 in the weaving process, wherein the plurality of damping fiber bundles 4 distributed at intervals are circumferentially and uniformly distributed on the main cable 1 and/or the periphery of the hydrophone array element 2 (in the embodiment, the plurality of damping fiber bundles 4 distributed at intervals are circumferentially and uniformly distributed on the peripheries of the main cable 1 and the hydrophone array element 2); and further, fluffing (scattering, disordering and the like) the led-out damping fiber bundles 4, so that the bent fibers in the same and adjacent damping fiber bundles 4 are mutually wound to form a damping fluffy structure, and the hydrophone nested fiber damping array is obtained. In this embodiment, the final array periphery (including the main cable and the hydrophone array element) is covered with the damping fiber braid 103, and the plurality of damping fiber bundles 4 at the periphery of the damping fiber braid 103 cover the whole array cable and the hydrophone array element, the fibers in the same damping fiber bundle 4 are mutually wound, and the fibers between the adjacent damping fiber bundles 4 are also mutually wound, so that the noise can be significantly reduced.
Claims (10)
1. A fiber damping array nested in a hydrophone is characterized by comprising a main cable (1), a plurality of hydrophone array elements (2) nested on the main cable (1) and signal wires (3) which are arranged in the main cable (1) and connected with the hydrophone array elements (2), wherein the hydrophone array elements (2) are arranged at intervals along the length direction of the main cable (1); the hydrophone array element (2) comprises a hydrophone shell (201), a hydrophone body element (202) arranged in the hydrophone shell (201) and a supporting piece (203) sleeved on the periphery of the main cable (1), wherein the hydrophone body element (202) is sleeved on the periphery of the supporting piece (203).
2. The hydrophone nested fiber damping array of claim 1, wherein the main cable (1) and/or the hydrophone array element (2) is peripherally provided with a plurality of circumferentially distributed bundles of damping fiber bundles (4) distributed at intervals; and/or the damping fiber bundles (4) are in a fiber fluffy structure; and/or the damping fiber bundles (4) are uniformly distributed on the circumference of the main cable (1) and/or the hydrophone array element (2) in an angle of 90 degrees; and/or the damping fiber bundle (4) is a curved damping fiber bundle.
3. The hydrophone nested fiber damping array of claim 1, wherein the hydrophone body element (202) is nested about the periphery of the support member (203) by a retaining groove (204); and/or the size of the spacing groove (204) matches the size of the hydrophone body element (202).
4. The hydrophone nested fiber damping array of claim 3, wherein the outer perimeter of the hydrophone body element (202) and the support (203) is provided with a first potting layer (205).
5. The hydrophone nested fiber damping array of claim 1, comprising an instrument pod (5) disposed at a top end of a main cable (1) and a sinker (6) disposed at a bottom end of the main cable (1).
6. The hydrophone nested fiber damping array of claim 5, wherein the sinker (6) is connected to the main cable (1) by a tail end bearing ring (601), and a parallel releaser (602) is arranged between the sinker (6) and the tail end bearing ring (601).
7. The hydrophone nested fiber damping array of claim 5, wherein the main cable (1) is connected to the instrument pod (5) by a watertight connector (7).
8. The hydrophone nested fiber damping array of claim 2, wherein the main cable (1) comprises, from inside to outside, a Kraft pull strength member (101), signal wires (3) distributed on the periphery of the Kraft pull strength member (101), a main cable watertight outer sheath (102) arranged on the periphery of the signal wires (3), and a damping fiber braid (103) arranged on the periphery of the main cable watertight outer sheath (102).
9. The hydrophone nested fiber damping array of claim 8, wherein the damping fiber braid (103) exits the damping fiber bundle (4).
10. A processing method of a fiber damping array nested in a hydrophone is characterized by comprising the following steps:
(S0) pretreatment of the fiber bundle: twisting a plurality of fiber strands to form a bent damping fiber bundle;
(S1) embedding the hydrophone main body element (202) in a limiting groove (204) of a support member (203), carrying out primary encapsulation on the mounted structure, forming a first encapsulation layer (205) on the periphery of the hydrophone main body element (202), and leading out a hydrophone positive end lead (206) and a hydrophone negative end lead (207) to form a main body of the hydrophone array element with a circular section;
(S2) sleeving the main body of the hydrophone array element formed in the step (S1) on the corresponding position of the main cable (1), connecting lead wires at the positive end and the negative end of the hydrophone to corresponding signal wires (3), and performing secondary vulcanization encapsulation on the hydrophone array element (2) and the main cable (1) to form a hydrophone shell (201), so that the hydrophone array element (2) and the main cable (1) form an integrated structure;
(S3) weaving and leading out the pretreated damping fiber bundle (4) outside an integrated structure formed by the hydrophone array element (2) and the main cable (1), and performing fluffing treatment on the damping fiber bundle (4) to enable bent fibers in the same and/or adjacent damping fiber bundles (4) to be mutually wound to form a damping fluffy structure, so that the hydrophone nested fiber damping array is obtained.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210274143 | 2022-03-20 | ||
| CN2022102741436 | 2022-03-20 |
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| CN114659615A true CN114659615A (en) | 2022-06-24 |
| CN114659615B CN114659615B (en) | 2024-03-19 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4030401A (en) * | 1975-06-04 | 1977-06-21 | Wall Industries, Inc. | Faired article |
| US4491939A (en) * | 1981-08-13 | 1985-01-01 | The Commonwealth Of Australia | Hydrophone cable |
| CN1283320A (en) * | 1998-03-31 | 2001-02-07 | 亨泽尔联合技术两合公司 | Cable armouring |
| US6580661B1 (en) * | 1998-12-22 | 2003-06-17 | Richard Anton Marschall | Hydrophone array |
| US20040264299A1 (en) * | 2003-06-28 | 2004-12-30 | Cooke Donald A. | Woven fiber protection cable assembly for use in optical fiber hydrophone array |
| KR100818187B1 (en) * | 2006-10-16 | 2008-03-31 | 국방과학연구소 | Signal cable integrated acoustic sensor line array system with high tension element |
| JP2014017173A (en) * | 2012-07-10 | 2014-01-30 | Asahi Kasei Fibers Corp | Noise depression cable |
| CN107228903A (en) * | 2016-03-23 | 2017-10-03 | 中国科学院声学研究所 | A kind of hydrophone linear array detected for concrete dam and preparation method thereof |
-
2022
- 2022-03-23 CN CN202210290696.0A patent/CN114659615B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4030401A (en) * | 1975-06-04 | 1977-06-21 | Wall Industries, Inc. | Faired article |
| US4491939A (en) * | 1981-08-13 | 1985-01-01 | The Commonwealth Of Australia | Hydrophone cable |
| CN1283320A (en) * | 1998-03-31 | 2001-02-07 | 亨泽尔联合技术两合公司 | Cable armouring |
| US6580661B1 (en) * | 1998-12-22 | 2003-06-17 | Richard Anton Marschall | Hydrophone array |
| US20040264299A1 (en) * | 2003-06-28 | 2004-12-30 | Cooke Donald A. | Woven fiber protection cable assembly for use in optical fiber hydrophone array |
| KR100818187B1 (en) * | 2006-10-16 | 2008-03-31 | 국방과학연구소 | Signal cable integrated acoustic sensor line array system with high tension element |
| JP2014017173A (en) * | 2012-07-10 | 2014-01-30 | Asahi Kasei Fibers Corp | Noise depression cable |
| CN107228903A (en) * | 2016-03-23 | 2017-10-03 | 中国科学院声学研究所 | A kind of hydrophone linear array detected for concrete dam and preparation method thereof |
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|---|---|
| CN114659615B (en) | 2024-03-19 |
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