CN110504063B - Photoelectric composite cable for distributed optical fiber hydrophone system - Google Patents
Photoelectric composite cable for distributed optical fiber hydrophone system Download PDFInfo
- Publication number
- CN110504063B CN110504063B CN201910805291.4A CN201910805291A CN110504063B CN 110504063 B CN110504063 B CN 110504063B CN 201910805291 A CN201910805291 A CN 201910805291A CN 110504063 B CN110504063 B CN 110504063B
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- layer
- optical
- composite cable
- elastic layer
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0045—Cable-harnesses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Communication Cables (AREA)
Abstract
The invention discloses an optical-electrical composite cable for a distributed optical fiber hydrophone system, which sequentially comprises a rigid inner supporting layer, a high-molecular flexible material layer, an elastic layer, an ointment layer and an outer sheath from inside to outside, wherein at least 1 optical fiber is tightly and spirally wound on the outer wall of the elastic layer, different optical fibers are not overlapped, and the ointment layer is tightly wrapped outside the optical fibers. The photoelectric composite cable is not wrapped by complex and hard metal armors, steel wire stranding or strips, and only a softer outer sheath is used for resisting corrosion, so that the energy loss of sound waves is lower when the sound waves are transmitted into the optical fibers. The cladding layer utilizes a high-molecular flexible material and an elastic layer, so that the detection sensitivity of the optical cable to external sound waves is enhanced while the optical cable is tensile. The optical fiber is spirally wound on the elastic layer, so that the variation of the optical path difference accumulated in the unit measurement length is increased, and meanwhile, the deformation of the flexible material can drive the optical fiber to deform, so that the integral sound pressure sensitivity of the optical cable is greatly improved.
Description
Technical Field
The invention belongs to the field of hydrophones and novel optical fiber cables, and particularly relates to an optical-electrical composite cable suitable for a distributed hydrophone detection system.
Background
The hydrophone is an important tool for sensing marine information and has important and wide application in the fields of military affairs, national defense, civilian life and scientific research. The existing mature hydrophones mainly depend on 3 technologies, namely an electronic detector technology, an optical fiber interferometer technology and an optical fiber laser technology. However, the 3 technologies have the problems of high cost, unstable sensitivity, numerous blind spots in a space measurement region and the like. In response to these problems, a fiber optic distributed hydrophone based on a fiber optic distributed acoustic wave sensing (DAS) technology has been proposed as a revolutionary technology. However, although the existing DAS system can perform distributed monitoring only by using one common optical fiber, the manufacturing cost and the maintenance cost are greatly reduced, and the airspace blind-spot-free monitoring can be performed along the optical fiber, however, since the young modulus of the common single-mode optical fiber is high, the external acoustic wave has a limited change to the length and the refractive index thereof, and therefore, the sound pressure sensitivity of the existing DAS system based on the straightened common single-mode optical fiber cannot meet the hydrophone requirement.
In addition, due to the particularity of the underwater environment, the common communication optical cable or the photoelectric composite cable is generally wrapped by complex and hard metal armors, steel wire stranding or strips for corrosion resistance, high voltage resistance and tensile resistance, so that the loss of external sound waves is too large when the external sound waves are transmitted to the sensing optical fiber through the optical cable. Therefore, when sensing is performed using the conventional optical cable structure, the sound pressure sensitivity of the DAS system is further reduced. Therefore, design a novel photoelectricity composite cable, realize open-sea distributed monitoring, bi-polar communication and power transmission simultaneously, be based on DAS technical distributed optical fiber monitoring system's key problem of practicality.
Disclosure of Invention
The invention aims to: the problem that the acoustic wave sensitivity of the existing underwater sensing optical cable adopting the straight common single-mode optical fiber cannot meet the requirements of a hydrophone and the problem that the acoustic wave conduction loss of other adopted common submarine optical cable structures is large is solved, and the photoelectric composite cable for the distributed optical fiber hydrophone system is provided.
The technical scheme adopted by the invention is as follows:
a compound cable of photoelectricity for distributed optical fiber hydrophone system, compound cable of photoelectricity includes rigid inside supporting layer, polymer flexible material layer, elastic layer, ointment layer and oversheath from inside to outside in proper order, and the tight spiral winding has the optic fibre of 1 at least on the outer wall of elastic layer, and is not overlapped between the different optic fibres, and the tight parcel ointment layer in optic fibre outside.
Further, the hard inner supporting layer is made of insulating materials, inner conductive metal wires are arranged in the hard inner supporting layer, insulators are wrapped outside the inner conductive metal wires, and the number of the conductive metal wires arranged on the hard inner supporting layer is more than or equal to 1.
Further, an air layer is arranged in the hard internal supporting layer.
Further, the air layer is filled with foam.
Further, the optical fiber is a single mode optical fiber, a multi-core optical fiber or a few-mode optical fiber with a sheath.
Further, the structure of the optical fiber is as follows: the optical fiber cable comprises a bare optical fiber, a tight sheath and a loose sheath from inside to outside in sequence, and factice is filled between the tight sheath and the delivery sheath.
Further, the optical fiber uses a bend-resistant optical fiber.
Further, the range of the thread pitch of the optical fiber which is tightly spirally wound on the outer wall of the elastic layer is as follows: greater than the diameter of the optical fiber and less than 2 times the diameter of the elastic layer.
Furthermore, a metal wire is added in the grease layer and is spirally stranded together with the optical fiber, the metal wire is not in contact with the optical fiber, and different metal wires are not in contact with each other.
Furthermore, the polymer flexible material layer is made of a bendable stretch-resistant material.
Furthermore, the outer sheath is made of corrosion-resistant and sealing materials.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the photoelectric composite cable suitable for the optical fiber distributed hydrophone, disclosed by the invention, complex and hard metal armoring, steel wire stranding or strip material wrapping is not adopted, and only a softer outer sheath is used for resisting corrosion, so that the energy loss of sound waves is lower when the sound waves are transmitted into an optical fiber. The cladding layer utilizes a high-molecular flexible material and an elastic layer, so that the detection sensitivity of the optical cable to external sound waves is enhanced while the optical cable is tensile. The optical fiber is spirally wound on the elastic layer, so that the variation of the optical path difference accumulated in the unit measurement length is increased, and meanwhile, the deformation of the flexible material can drive the optical fiber to deform, so that the integral sound pressure sensitivity of the optical cable is greatly improved.
2. In the invention, the internal hard internal supporting layer can use a conductive metal layer with an insulating layer or a high-Young modulus hollow cylinder as a hard support, so that the optical cable is not influenced by ocean noise; the use of conductive metal wires within the rigid internal support also enables open sea power transmission to be achieved simultaneously.
3. In the invention, an air layer is used in the rigid internal support layer, so that external sound waves can cause the hollow rigid support to generate micro deformation, thereby enhancing the sensing capability of the sensing optical fiber on weak sound waves and further increasing the sound pressure sensitivity of the optical cable.
4. According to the invention, the metal wire and the optical fiber with the tight sheath are simultaneously spirally stranded, so that the pressure resistance of the optical fiber is increased, and the sensing sensitivity of the optical fiber to external sound waves is not obviously reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic cross-sectional view of an optical-electrical composite cable according to embodiment 1 of the present invention;
FIG. 2 is a schematic cross-sectional view of a tightly jacketed optical fiber of example 1 of the present invention;
fig. 3 is a schematic cross-sectional view of an optical/electrical composite cable according to embodiment 2 of the present invention;
FIG. 4 is a schematic cross-sectional view of a tightly jacketed optical fiber of example 2 of the present invention;
fig. 5 is a schematic cross-sectional view of an optical/electrical composite cable according to embodiment 3 of the present invention;
FIG. 6 is a schematic cross-sectional view of a metal line with an insulating layer according to example 3 of the present invention;
FIG. 7 is a schematic view of the optical fiber and the metal wire being tightly spirally wound on the outer wall of the elastic layer in the present invention;
the labels in the figure are: 100-optical fiber, 101-conductive metal wire, 102-rigid inner supporting layer, 103-high polymer flexible material layer, 104-elastic layer, 105-grease layer, 106-outer sheath, 201-bare optical fiber, 202-tight sheath, 401-loose sheath, 301-metal wire, 302-insulating layer, 501-air layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
The photoelectric composite cable for the distributed optical fiber hydrophone system comprises a rigid inner supporting layer 102, a high polymer flexible material layer 103, an elastic layer 104, an ointment layer 105 and an outer sheath 106 from inside to outside in sequence, at least 1 optical fiber 100 is tightly and spirally wound on the outer wall of the elastic layer 104, different optical fibers are not overlapped, and the ointment layer 105 is tightly wrapped outside the optical fiber 100.
Further, the hard inner supporting layer 102 is made of an insulating material, and an inner conductive metal wire 101 is disposed in the hard inner supporting layer 102. The inner conductive metal lines 101 are coated with an insulator, and the number of the conductive metal lines arranged on the hard inner support layer 102 is greater than or equal to 1.
Further, an air layer 501 is formed in the hard inner supporting layer 102.
Further, the air layer 501 is filled with a foam material.
Further, the optical fiber 100 is a single mode optical fiber, a multi-core optical fiber or a few-mode optical fiber with a sheath.
Further, the structure of the optical fiber 100 is: the optical fiber connector comprises a bare optical fiber 201, a tight sheath 202 and a loose sheath 401 from inside to outside in sequence, and factice is filled between the tight sheath 202 and the loose sheath 401.
Further, the optical fiber 100 uses a bend-resistant optical fiber so that the optical fiber 100 does not generate a large bending loss after the spiral winding.
Further, the optical fiber 100 is tightly and spirally wound on the outer wall of the elastic layer 104 with the pitch range: greater than the diameter of the optical fiber 100 and less than 2 times the diameter of the elastic layer 104.
Further, the metal wire 301 added in the grease layer 105 is helically twisted together with the optical fiber 100, the metal wire 301 does not contact the optical fiber 100, and different metal wires 301 do not contact each other.
Further, the polymer flexible material layer 103 is made of a bendable stretch-resistant material.
Further, the outer sheath 106 is made of a material that is corrosion resistant and has sealing property.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
According to a preferred embodiment of the present invention, as shown in fig. 1, the optical-electrical composite cable sequentially includes, from inside to outside, a rigid inner supporting layer 102, a polymer flexible material layer 103, an elastic layer 104, an ointment layer 105, and an outer sheath 106, at least 1 optical fiber 100 is tightly and spirally wound on an outer wall of the elastic layer 104, different optical fibers are not overlapped, the ointment layer 105 is tightly wrapped outside the optical fiber 100, the rigid inner supporting layer 102 is made of an insulating material, an inner conductive metal wire 101 is disposed in the rigid inner supporting layer 102, and the number of the conductive metal wires 101 may be 2 or multiple according to different power supply requirements.
In addition, the number of the integrated bare fibers 201 can be 1 or multiple, but different optical fibers cannot be overlapped during winding, so that the problem of uneven response of different optical fibers to sound waves is avoided. The optical fiber integrated in the optical cable can be partially applied to signal transmission and partially applied to monitoring of the distributed optical fiber hydrophone. And the same optical fiber can be used for both distributed optical fiber hydrophones and signal transmission.
The elastic layer 104 in the optical cable is made of a material with a small Young's modulus and tensile resistance, such as soft rubber or elastomer plastic; the polymer flexible material layer 103 uses a material having a high young's modulus but being easily bent, such as aramid, so that the optical cable can prevent an unexpected fracture in the case of a ship break or the like.
The outer sheath 106 of the optical cable is made of a material with corrosion resistance and good sealing performance, so that the optical cable can normally work for a long time under water, particularly under the environment of highly corrosive liquid such as seawater.
The tight jacketed optical fiber 100 is tightly spirally wound on the outer wall of the elastic layer 104, the pitch of the spiral winding is adjustable, and the pitch range is: greater than the diameter of the optical fiber 100 and less than 2 times the diameter of the elastic layer 104. The smaller the pitch, the higher the sound pressure sensitivity of the cable, but the longer the length of fiber consumed. Fig. 7 is a schematic diagram of a winding manner of 3 optical fibers tightly spirally wound on the outer wall of the polymer flexible material layer, the optical fibers are sequentially arranged at intervals, and are wound on the outer wall of the elastic layer 104 in the same direction, and the distances between different optical fibers can be different or the same within a range satisfying the pitch. Optical fiber is tightly wound on the elastic layer 104, so that the variation of the optical path difference accumulated in the unit measurement length is increased, and meanwhile, the deformation of the flexible material can drive the optical fiber to deform, so that the integral sound pressure sensitivity of the optical cable is greatly improved.
Example 2
In the optical/electrical composite cable for distributed optical fiber hydrophone system according to the preferred embodiment of the present invention, as shown in fig. 3, based on embodiment 1, a metal wire 301 is added to an ointment layer 105 to be helically twisted together with a tightly jacketed optical fiber 100, the optical fiber 100 and the metal wire 301 are staggered individually, or alternatively, two or more wires are staggered, or the metal wire 301 and the optical fiber 100 are sequentially arranged, and then the metal wire 301 and the optical fiber 100 are wound in the same direction. The spacing between the optical fibers and the metal wires is the same as that in embodiment 1, and the spacing between different optical fibers and metal wires may be different or the same within a range satisfying the pitch. During stranding, the wires 301 are not in contact with the jacketed optical fiber 100, and there is no contact between the different wires. The structure increases the lateral pressure resistance of the whole optical cable, and is more suitable for sensing in deep sea with high pressure.
Further, in order to make the optical fiber of the optical cable not easily damaged in the stranding process, a layer of loose sheath 401 is added outside the original tight sheath 202 of the optical fiber in the optical cable, so that the structure of the optical fiber 100 is as follows: the optical fiber comprises a bare optical fiber 201, a tight sheath 202 and a loose sheath 401 from inside to outside in sequence, and the cross-sectional structure is shown in FIG. 4.
In this embodiment, compared to the structure shown in embodiment 1, since a harder metal wire is used in the mastic layer 105, the overall hardness of the optical/electrical composite cable is increased, resulting in a decrease in the sound pressure sensitivity of the optical cable. However, since the metal wire does not overlap the optical fiber when twisted, lateral sound pressure is not affected by the metal wire when transmitted to the optical fiber, and thus the amount of reduction in sound pressure sensitivity is limited. Considering that the survivability of the photoelectric composite cable is greater than the sensitivity in practical application, the optical cable is particularly suitable for deep sea monitoring of the optical fiber distributed hydrophone.
Example 3
As shown in fig. 5, the optical-electrical composite cable for a distributed optical fiber hydrophone system according to a preferred embodiment of the present invention includes, in order from inside to outside, an air layer 501, a rigid inner supporting layer 102, a polymer flexible material layer 103, an elastic layer 104, an ointment layer 105, and an outer sheath 106;
at least 1 sheathed optical fiber 100 and metal wire 301 are tightly and spirally wound on the outer wall of the elastic layer 104, the optical fibers 100 and the metal wire 301 are arranged in a staggered way, different optical fibers 100 are not overlapped, the metal wire 301 is not contacted with the sheathed optical fiber 100, different metal wires 301 are not contacted, and the metal wire 301 is provided with an insulating layer. The optical fiber 100 and the metal wire 301 are tightly wrapped with the grease layer 105. The spiral winding pitch is adjustable, and the pitch range is as follows: greater than the diameter of the optical fiber 100 and less than 2 times the diameter of the elastic layer 104. The pitch between different fibers and wires may be different or the same within the pitch range.
Fig. 4 shows a schematic cross-sectional view of a jacketed optical fiber 100. Fig. 6 shows a schematic cross-sectional view of a metal line 301 with an insulating layer, wherein the metal line 301 is wrapped by an insulating layer 302. Fig. 7 is a schematic view of 3 optical fibers and a metal wire tightly spirally wound on the outer wall of an elastic layer. In fig. 7, 104 is an elastic layer, and 702 is a staggered arrangement of the jacketed optical fiber 100 and the insulated metal wire 301.
Similar to embodiment 1, the bare fiber 201 used in the optical cable is a single mode fiber, a multi-core fiber or a few-mode fiber with better bending resistance; the high polymer flexible material layer 103 needs to be made of a material with a high young's modulus but easy to bend, such as aramid; the elastic layer 104 is made of a material with a low Young's modulus, such as soft rubber or elastomer plastic; the outer sheath 105 is made of a corrosion resistant flexible material such as rubber or plastic.
In order to facilitate the manufacturing of the air layer 501 in the optical cable, a foam material may be used for filling. When external sound waves are transmitted to the optical fibers, the hard inner supporting layer 102 drives the polymer flexible material layer 103 and the elastic layer 104 to deform easily due to the hollow inside, and further drives the optical fibers tightly wound on the polymer flexible material layer to deform. In all the embodiments shown in the invention, the structure has the highest sound pressure sensitivity but has the weakest lateral pressure resistance, so the structure is suitable for the dragging type distributed optical fiber hydrophone.
The young's modulus of the rigid inner support layer 102 of the optical cable needs to be much higher than the elastic layer 104 and the outer sheath 106, so that the optical cable has certain rigidity in the axial direction, thereby reducing the influence of ocean noise.
The Young's modulus of the rigid inner support layer 102 was set to 8X 1010Pa, Poisson's ratio of 0.35; the Young's modulus of the elastic layer 104 is 3X 107Pa, Poisson's ratio of 0.4. And the Young's modulus of the optical fiber is 7 x 1010Pa, diameter 125 μm. The following simulations do not consider the polymer flexible material layer 103.
When the straight common single-mode fiber is used as the sensing medium of the distributed fiber hydrophone, the sound pressure sensitivity of the system is about-180 dB re 1 rad/mu Pa. Setting the distance from the outer wall of the polymer flexible material layer 103 to the center of the optical cable to be 0.02m and the thickness to be 0.005 m; the thickness of the rigid inner support layer 102 is 0.01 m. When a 10m long fiber is wound after a 5m long layer of flexible material 103 (which can be wound 68 turns with a pitch of 0.0735m), its sensitivity can be raised to about-134 dB re 1rad/μ Pa. As can be seen from the above examples, the optical fiber is wound around the hollow flexible material, which can greatly increase the sound pressure sensitivity.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. An optical-electrical composite cable for a distributed optical fiber hydrophone system, comprising: photoelectric composite cable includes rigid inside supporting layer (102), polymer flexible material layer (103), elastic layer (104), oleamen layer (105) and oversheath (106) from inside to outside in proper order, and inseparable spiral winding has optic fibre (100) of 1 at least on the outer wall of elastic layer (104), and non-overlapping between the different optic fibre, the inseparable oleamen layer (105) of parcel of optic fibre (100) outside, optic fibre (100) use bending resistance optic fibre, the pitch scope of the inseparable spiral winding of optic fibre (100) on elastic layer (104) outer wall does: the diameter of the optical fiber (100) is larger than the diameter of the optical fiber (100) and is smaller than 2 times of the diameter of the elastic layer (104), the metal wire (301) added in the grease layer (105) is twisted together with the optical fiber (100) in a spiral mode, the metal wire (301) is not in contact with the optical fiber (100), and different metal wires (301) are not in contact with each other.
2. The opto-electrical composite cable for a distributed fiber optic hydrophone system of claim 1, wherein: the hard inner supporting layer (102) is made of insulating materials, an inner conductive metal wire (101) is arranged in the hard inner supporting layer (102), an insulator is wrapped outside the inner conductive metal wire (101), and the number of the conductive metal wires arranged on the hard inner supporting layer (102) is more than or equal to 1.
3. The opto-electrical composite cable for a distributed fiber optic hydrophone system of claim 1, wherein: an air layer (501) is arranged in the hard inner supporting layer (102).
4. The opto-electric composite cable for a distributed fiber optic hydrophone system of claim 3, wherein: the air layer (501) is filled with foam.
5. The opto-electrical composite cable for a distributed fiber optic hydrophone system of claim 1, wherein: the optical fiber (100) is a single-mode optical fiber, a multi-core optical fiber or a few-mode optical fiber with a sheath.
6. The opto-electrical composite cable for a distributed fiber optic hydrophone system of claim 1, wherein: the structure of the optical fiber (100) is as follows: the optical fiber connector sequentially comprises a bare optical fiber (201), a tight sheath (202) and a loose sheath (401) from inside to outside, and factice is filled between the tight sheath (202) and the loose sheath (401).
7. The opto-electrical composite cable for a distributed fiber optic hydrophone system of claim 1, wherein: the high-molecular flexible material layer (103) is made of a bendable stretch-resistant material, and the outer sheath (106) is made of a corrosion-resistant and sealing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910805291.4A CN110504063B (en) | 2019-08-28 | 2019-08-28 | Photoelectric composite cable for distributed optical fiber hydrophone system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910805291.4A CN110504063B (en) | 2019-08-28 | 2019-08-28 | Photoelectric composite cable for distributed optical fiber hydrophone system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110504063A CN110504063A (en) | 2019-11-26 |
| CN110504063B true CN110504063B (en) | 2020-12-25 |
Family
ID=68590277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910805291.4A Active CN110504063B (en) | 2019-08-28 | 2019-08-28 | Photoelectric composite cable for distributed optical fiber hydrophone system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110504063B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111624716A (en) * | 2020-05-08 | 2020-09-04 | 江苏亨通海洋光网系统有限公司 | Composite submarine optical cable integrating communication and environmental monitoring |
| CN111947765A (en) * | 2020-07-13 | 2020-11-17 | 深圳华中科技大学研究院 | Fully-distributed underwater acoustic sensing system based on micro-structure optical fiber hydrophone towing cable |
| CN112504306A (en) * | 2020-10-30 | 2021-03-16 | 电子科技大学 | Close-wound optical fiber type hypersensitive oil well sensing optical cable |
| CN113009656A (en) * | 2021-02-10 | 2021-06-22 | 龙岩岳凯科技有限公司 | Flexible optical fiber line |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1624812A (en) * | 2003-12-03 | 2005-06-08 | Lg电线有限公司 | Optical fiber composite electrical power cable |
| CN101783209A (en) * | 2010-03-10 | 2010-07-21 | 无锡华能电缆有限公司 | Photoelectric integrated and intelligent transfer wire |
| CN203055524U (en) * | 2012-12-07 | 2013-07-10 | 上海南大集团有限公司 | Photoelectric composite cable for rail transit |
| CN105810323A (en) * | 2016-05-04 | 2016-07-27 | 江苏红峰电缆集团有限公司 | Optical fiber composite low-voltage power cable suitable for voltage level of being equal to or less than 0.6/1kv |
| CN207009150U (en) * | 2017-07-10 | 2018-02-13 | 江苏宏图高科技股份有限公司 | A kind of flexible ground shield optoelectronic composite cable |
| US10345139B2 (en) * | 2013-09-13 | 2019-07-09 | Silixa Ltd. | Non-isotropic acoustic cable |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783204B (en) * | 2009-10-29 | 2012-07-11 | 国网电力科学研究院武汉南瑞有限责任公司 | Intelligent ultrahigh-voltage XLPE power cable capable of monitoring partial discharge on line |
| CN103985466A (en) * | 2014-04-28 | 2014-08-13 | 江苏宏图高科技股份有限公司 | High-sensitivity optical fiber stress sensing photoelectric composite cable |
| CN109459830A (en) * | 2018-12-19 | 2019-03-12 | 武汉理工大学 | The encapsulating structure of distributed fiber grating vibrating sensor |
-
2019
- 2019-08-28 CN CN201910805291.4A patent/CN110504063B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1624812A (en) * | 2003-12-03 | 2005-06-08 | Lg电线有限公司 | Optical fiber composite electrical power cable |
| CN101783209A (en) * | 2010-03-10 | 2010-07-21 | 无锡华能电缆有限公司 | Photoelectric integrated and intelligent transfer wire |
| CN203055524U (en) * | 2012-12-07 | 2013-07-10 | 上海南大集团有限公司 | Photoelectric composite cable for rail transit |
| US10345139B2 (en) * | 2013-09-13 | 2019-07-09 | Silixa Ltd. | Non-isotropic acoustic cable |
| CN105810323A (en) * | 2016-05-04 | 2016-07-27 | 江苏红峰电缆集团有限公司 | Optical fiber composite low-voltage power cable suitable for voltage level of being equal to or less than 0.6/1kv |
| CN207009150U (en) * | 2017-07-10 | 2018-02-13 | 江苏宏图高科技股份有限公司 | A kind of flexible ground shield optoelectronic composite cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110504063A (en) | 2019-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110504063B (en) | Photoelectric composite cable for distributed optical fiber hydrophone system | |
| US5268971A (en) | Optical fiber/metallic conductor composite cable | |
| US5495546A (en) | Fiber optic groundwire with coated fiber enclosures | |
| CA1219155A (en) | Armored optical fiber cable | |
| US5230033A (en) | Subminiature fiber optic submarine cable and method of making | |
| US6292611B1 (en) | High fiber count, compact, loose tube optical fiber cable employing ribbon units and flexible buffer tubes | |
| JPH11176255A (en) | Composite cable | |
| JP4495123B2 (en) | Optical fiber composite ground wire | |
| CN201868135U (en) | Seabed optical fiber composite high-voltage cable with detecting function | |
| EP3767356B1 (en) | Multisensing optical fiber cable | |
| RU188809U1 (en) | Electro-optic cable | |
| CN102681114A (en) | Armored sensing optical cable | |
| RU109907U1 (en) | ELECTRICAL OPTICAL CABLE FOR INSTALLATION OF SUBMERSIBLE ELECTRIC PUMPS | |
| CN2831161Y (en) | Sheathed tail fiber and communication sensing optical cable | |
| CN1811508A (en) | Optical fiber cable | |
| CN110739101B (en) | High-strength photoelectric composite cable | |
| CN109545471B (en) | Optical fiber load-bearing detection cable based on microseismic monitoring transverse wave sensitization sensing | |
| CN106154466A (en) | One can etch-proof wear-resistant optical cable | |
| CN218886241U (en) | Underwater armored optical cable convenient to lay | |
| CN111243791A (en) | High-sealing load-bearing detection cable | |
| CN2525544Y (en) | High strength steel wire armoured ocean optical cable | |
| CN219143163U (en) | High-power submarine optical cable based on multi-core optical fibers | |
| CN215895054U (en) | Waterproof durable central beam tube type optical cable | |
| CN215895056U (en) | Durable loose-sleeve layer-stranded optical cable | |
| CN216212471U (en) | Cable with good corrosion resistance used in tunnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |