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CN101295061A - Bend insensitive opto-electrical cables with improved fatigue life - Google Patents

Bend insensitive opto-electrical cables with improved fatigue life Download PDF

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Publication number
CN101295061A
CN101295061A CNA2008100923497A CN200810092349A CN101295061A CN 101295061 A CN101295061 A CN 101295061A CN A2008100923497 A CNA2008100923497 A CN A2008100923497A CN 200810092349 A CN200810092349 A CN 200810092349A CN 101295061 A CN101295061 A CN 101295061A
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China
Prior art keywords
layer
fiber optic
electric conductor
optical fiber
optic component
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Pending
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CNA2008100923497A
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Chinese (zh)
Inventor
约瑟夫·瓦尔基
弗拉基米尔·赫尔南德斯-索罗斯
苏里亚·西曼云塔
丹·塔巴兰
金秉俊
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Prad Research and Development Ltd
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Prad Research and Development Ltd
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Publication of CN101295061A publication Critical patent/CN101295061A/en
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4429Means specially adapted for strengthening or protecting the cables
    • G02B6/44382Means specially adapted for strengthening or protecting the cables the means comprising hydrogen absorbing materials
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4415Cables for special applications
    • G02B6/4416Heterogeneous cables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/22Cables including at least one electrical conductor together with optical fibres

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Insulated Conductors (AREA)
  • Communication Cables (AREA)

Abstract

A hybrid opto-electrical cable assembly for oilfield wireline or seismic exploration applications includes an optical fiber element and an electrical conductor. The optical fiber element includes an optical fiber and a carbon layer surrounding the optical fiber. The optical fiber can have a high Numerical Aperture to reduce the fiber susceptibility to optical signal attenuation due to microbendings or macrobendings. The carbon layer increases the fatigue life of the optical fiber and protects the optical fiber against hydrogen attack and hydrolysis. Therefore, the optical fiber element and the opto-electrical cable assembly are less susceptible to bending stress and have increased service life. A jacketing system for protecting the opto-electrical cable assembly and a manufacturing method thereof are also disclosed.

Description

Light-electrical cables with the bend-insensitive that improves fatigue lifetime
Technical field
Present invention relates in general to light-electrical cables, and relate more specifically to be used for the mixed light-electrical cables and the manufacture method thereof of oil reservoir logging cable, seismic prospecting.
Background technology
Statement in this part only provides background information related to the present invention, and may not constitute prior art.
When just drilling oil well, probe usually descends periodically and enters the feature of drilling well with the stratum measuring it and cross.Typically, the logging cable probe of in drilling well, supporting and move, for probe transports electric power, and relay and control instruction and data between instrument of locating on the probe and the face of land and the control device.Because measurement and surveying instrument have become more accurate, data rate has been increased to the point that existing cable may become saturated.
Show that as the optical fiber telephone cable optical fiber technology can increase the message transmission rate of a plurality of orders of magnitude.Yet owing to use the requirement condition of logging cable, the phone fiber optic cables will be unacceptable.Telephone cable is designed in use keep static, and can not run into temperature and the pressure extreme case of finding in oil well.
On the contrary, logging cable spurs repeatedly around pulley, and enters well and promote out on niggerhead is rolled up and under the volume from well along with its descends.Therefore, this cable must bear around the alternating bending of several ft diams and thousands of pounds tension force.In case in well, cable runs into and may surpass per square inch 20,000 pounds pressure and may surpass 175 ℃ temperature.Yet optical fiber is extremely responsive to distortion (especially putting load), and this has greatly increased the decay of the light signal in the optical fiber.They are also to moisture-sensitive, and moisture is attacked fine crack in optical fiber, reduce its intensity.In addition, they are to atom and molecular hydrogen sensitivity, and hydrogen and quartzy (Silica) reaction have increased the decay of optical fiber.When making cable, and subsequently when using, the stress on the cable assembly (electric conductor, strength member etc.) (crooked with stretch) relative to each other moves their in cable.This can cause the local deformation of optical fiber.The stretching cable tensile strain optical fiber, thereby increased its stress, increased the weight of its decay, and cause sometimes their the fracture.High pressure in the well and high temperature help moisture and hydrogen to invade cable and optical fiber.As indication, typical optics telephone communication cable does not design for these operating conditionss.
Consider aforementioned content, people's such as Anderson U.S.4 discloses a kind of and the common expectation of transferring the possession of of the application in 375,313 and has been used for light-electrical cables that oil well and seismic prospecting are used, itself and the application transfer the possession of jointly, and the content of this patent is incorporated into here by reference in its entirety.This U.S.4,375,313 patent disclosures a kind of buffer structure, be used to protect optical fiber to avoid moisture, hydrogen and uneven stress.Though the sort buffer structure is fit to repeatedly and overcritical logging Application, consider and in darker oil and gas well, use cable and adopt the more accurate instrument that requires to increase volume of transmitted data, still need buffered optical fibers antagonism stress and moisture and hydrogen protection better.
Summary of the invention
Embodiment of the present invention provide bend-insensitive with raising, fatigue lifetime and to fiber optic component, mixed light-electric conductor, mixed light-electric conductor assembly and the light-electric core assembly of the protection of hydrogen attack.In a kind of preferred form, fiber optic component comprises optical fiber and centers on the carbon-coating of optical fiber.
In another form, mixed light-electric conductor comprises: at least one fiber optic component; At least one electric conductor around at least one fiber optic component setting; Fixed bed with being provided with around at least one electric conductor is used at least one electric conductor fix in position.This at least one fiber optic component comprises optical fiber and centers on the carbon-coating of fiber optic component.
In another form, mixed light-electric conductor assembly comprises: a plurality of light-electric conductors of bundled setting; With the packing material that is used in conjunction with a plurality of light-electric conductors.Each electric conductor that comprises fiber optic component and surround fiber optic component of this light-electric conductor.This fiber optic component has optical fiber and centers on the carbon-coating of optical fiber.
In another form, mixed light-electric conductor comprises: at least one fiber optic component; At least one electric conductor around at least one fiber optic component setting; First polymkeric substance; And the second polymer layer.First polymeric layer is with at least one electric conductor fix in position.The second polymer layer surrounds first polymeric layer, is used to improve the physical strength of light-electric conductor.
In another form, mixed light-electric conductor assembly comprises: a plurality of light-electric conductors of bundled setting; Filler rod; And packing material.A plurality of light-electric conductors have been determined a plurality of gaps between exterior contour and the adjacent light-electric conductor.A plurality of filler rods are arranged in the gap of contiguous exterior contour.Packing material is filled in the gap, to link a plurality of conductors and filler rod to form core assembly.
In another form, the shield system that is used for cable assembly comprises: the polymer composites that is fit to surround cable core; Surround first strength members of polymer composites; Surround first polymeric layer of first strength members; Surround second strength members of first polymeric layer; With the second polymer layer that surrounds second strength members.
In another form, the method for manufacturing photoconductor assembly comprises: a plurality of light-electric conductors are provided; Bundled a plurality of light-electric conductors are set, these light-electric conductors have been determined a plurality of gaps between exterior contour and the adjacent light-electric conductor; A plurality of filler rods are placed in the gap of contiguous exterior contour; Packing material is packed in the gap; With protective seam is placed on around conductor and the filler rod.
By the description that provides here, further range of application will be clearly.Being appreciated that description and instantiation intention only is to be used for illustration purpose, is not that scope of the present invention is limited.
Description of drawings
Accompanying drawing described herein only is used for illustrative purposes, is not that intention limits the scope of the invention by any way.
Fig. 1 is the cross-sectional view strength according to the fiber optic component of instruction structure of the present invention.
Fig. 2 is the cross-sectional view strength according to the optional fiber optic component of instruction structure of the present invention.
Fig. 3 is the cross-sectional view strength according to the mixed light-electric conductor of instruction structure of the present invention.
Fig. 4 is the cross-sectional view strength according to the optional mixed light-electric conductor of instruction structure of the present invention.
Fig. 5 is the cross-sectional view strength according to the mixed light-electric core assembly of instruction structure of the present invention.
Fig. 6 is the cross-sectional view strength according to another optional mixed light-electrical cables assembly of instruction structure of the present invention.
Fig. 7 is the cross-sectional view strength according to another optional mixed light-electrical cables assembly of instruction structure of the present invention.
Fig. 8 be according to the cross-sectional view strength of the optional cable core assembly of instruction of the present invention structure and
Fig. 9,10 and 11 is cross-sectional view strengths of the core assembly of mixed light-electric conductor assembly, has shown the sequential steps of making core assembly according to instruction of the present invention.
In several accompanying drawings, corresponding label indication corresponding components.
Embodiment
Following description only is illustrative in essence, is not intended to limit the present invention, application or purposes.Be appreciated that corresponding label refers to similar or corresponding components and feature in whole accompanying drawings.
Fiber optic component
With reference to Fig. 1, shown fiber optic component according to instruction structure of the present invention, and always by label 10 indications.Fiber optic component 10 comprises: optical fiber 12; Carbon-coating 14 around optical fiber 12 settings; Cushion 18 around carbon-coating 14; With outside silicon layer 24 around cushion 18.Optical fiber 12 comprises core 1 and coating 2.
Optical fiber 12 and carbon-coating 14 form optical fiber component 16.Carbon-coating 14 is sealings, resistant to elevated temperatures, and is placed on the optical fiber 12 to provide H 2O and H +Barrier, thereby protection prevents hydrogen attack and hydrolysis.Carbon-coating 14 has also increased the proof stress level and the anti-static fatigue of fiber optic component 10, thereby has increased the serviceable life of fiber optic component 10.
Preferably, optical fiber 12 has high-NA (Numerical Aperture) and the core 1 littler than conventional telecommunications optical fiber.High numerical aperture fiber requires littler fiber cores size to keep constant cutoff wavelength.High NA optical fiber has reduced the attenuated optical signal susceptibility of optical fiber to being caused by microbend and macrobending.
Cushion 18 surrounds optical fiber component 16, and closely contacts optical fiber component 16.Cushion 18 is known as " locking buffering " because cushion 18 closely contacts with optical fiber component 16, with may adopt the conduit form and comprise " relax dash " of optical fiber component 16 loosely opposite.Cushion 18 comprises that extrusion molding is at the silicon layer on the optical fiber component 16 or other soft condensate 20 that is fit to and PFA (perfluoro alkoxy) layer 22 of extrusion molding on silicon layer 20.
Outside silicon layer or other soft condensate 24 that is fit to are extruded on cushion 18, with buffered optical fibers assembly 16 and be dispersed on the optical fiber component 16 any compressive load from the outside.Utilize this structure, fiber optic component 10 more is difficult for being subjected to drawing stress and bending stress to influence, thereby reduces signal attenuation.
With reference to Fig. 2, shown optional fiber optic component and always indicated by label 30.Fiber optic component 30 has the structure that is similar to fiber optic component 10, and difference is: fiber optic component 30 comprises three optical fiber components 16.
Should understand and appreciate: according to application, fiber optic component 10 or 30 can have the optical fiber component 16 of arbitrary number.In addition, optical fiber component 16 can be arranged to determine circular cross sections transversal section in addition.Under the situation that does not deviate from spirit of the present invention, can adopt other configuration.Laying them with before forming bundle, every kind of optical fiber component 16 can be coated with silicon or other flexible polymer 3 that is fit to.
Mixed light-electric conductor
With reference to Fig. 3, shown mixed light-electric conductor and always indicated by label 40.Mixed light-electric conductor 40 comprises: fiber optic component 10; Surround a plurality of electric conductors 42 of fiber optic component 10; Surround the fixed bed 44 of a plurality of electric conductors 42; With the strengthening layer 46 that surrounds fixed bed 44.As described previously, fiber optic component 10 comprises: optical fiber 12; Carbon-coating 14; Cushion 18; With the outside silicon layer 24 that surrounds cushion 18.
In this example illustrated, a plurality of electric conductors 42 adopt the form of many copper cash or nickel plated copper wire.A plurality of electric conductors 42 are wrapped in around the fiber optic component 10 spirally, and are partially submerged into outside organosilicon (silicone) layer 24 of fiber optic component 10.
Fixed bed 44 is set at around a plurality of electric conductors 42, is used for a plurality of electric conductor 42 fix in position.In some preferred embodiments, fixed bed is the polymeric layer that can be used as first polymeric layer, and this polymeric layer is extruded around a plurality of electric conductors 42 with locking electric conductor 42.Polymeric layer 44 is preferably by making such as fluoropolymer, polyolefin, polyphenylene, mollielast, thermoplastic elastomer etc.Some limiting examples of these materials comprise: polyolefins; Teflon-perfluoromethylvinylpolymers polymers (MFA); Perfluoro alkoxy alkane polymkeric substance (PFA); Polytetrafluoroethylene polymer (PTFE); Ethylene-tetrafluoroethylene polymkeric substance (ETFE); Ethylene-propylene copolymer (EPC); Poly-(4-methyl-1-pentene) (can be from Mitsui Chemicals company (Mitsui Chemicals, Inc.) TPX of Huo Deing
Figure A20081009234900091
); Other fluoropolymer; Polyaryl ether ether ketone polymer (PEEK); Polyphenylene sulfide polymer (PPS); The modified polyphenyl thioether polymkeric substance; Polyetherketone polymkeric substance (PEK); The polymkeric substance of maleic anhydride modified; Perfluoroalkoxy; Fluorinated ethylene-propylene polymer; Teflon-perfluoromethylvinylpolymers polymers; Polyamide polymer; Polyurethane; Thermoplastic polyurethane; Ethene chlorotrifluoroethylene polymer poly compound is (such as Halar
Figure A20081009234900092
); The ethlyene dichloride acrylic polymers; Parmax
Figure A20081009234900093
The SRP polymkeric substance is (by (the Mississippi Polymer Technologies of Mississippi Polymer Technology Inc., Inc) produce from reinforcing copolymer, it is based on poly-(1, the 4-phenylene) structure that replaces, and wherein each phenylene ring has the substituent R group of deriving from multiple organic group); ECTFE; PAEK; Santoprene; Silicon (Silicon); Ethylene-tetrafluoroethylene copolymer (Tefzel); EPDM; Engage; Infuse; Fluorine-containing thermoplastic elastomer etc.; And any potpourri.
Strengthening layer 46 surrounds fixed bed 44, is used to protect encirclement fiber optic component 10 and electric conductor 42 wherein.Strengthening layer 46 comprises: the second polymer layer 48 of extrusion molding on fixed bed 44; With the terpolymer layer 50 of extrusion molding on the second polymer layer 48.The material that is used for the second polymer layer 48 and terpolymer layer 50 is compatibly selected to be used for increase the physical strength of mixed light-electric conductor 40, and required electrical properties is provided.
For example, the second polymer layer 48 can be by making than terpolymer layer 50 harder material, so that the physical strength of expectation to be provided.The suitable material of the second polymer layer 48 comprises: similar PEEK, PEK, PK, the PAEK family of PAEK etc.; Parmax; The PPS of PPS or modification; Similar Tefzel, the carbon fiber-reinforced fluoropolymer of ECTFE etc.; The PTFE of reinforcement and malleableize; Deng.Terpolymer layer 50 is used to provide the electrical properties of expectation, such as the impedance and the decay of low electric signal of expectation.The suitable material of terpolymer layer 50 comprises: such as PP, and PE, EPC, the polyolefin of TPX; Such as Tefzel, MFA, ECTFE, PFA, FEP, the fluoropolymer of PTFE etc.
Though not shown in the diagram, should understand and appreciate: terpolymer layer 50 can be provided with contiguous fixed bed 44, and the second polymer layer 48 can be arranged on around the terpolymer layer 50.Can avoid fixed bed 44 with layer 48 and 50 and only match with layer 48 and 50.
In certain embodiments, first polymeric layer 44 can be removed.Optical fiber will be by the second polymer layer 48 and 50 protection of terpolymer layer.In some embodiments, the second polymer layer 44 can be on terpolymer layer 50 outside, so that assembly (package) has the better crush resistance from external force.
With reference to Fig. 4, shown optional light-electric conductor and always indicated by label 54.Light-electric conductor 40 parts that light-electric conductor 54 is different from Fig. 3 are: light-electric conductor 54 comprises three optical fiber components 16.Should understand and appreciate: in light-electric conductor, can comprise the optical fiber component 16 of arbitrary number, can not deviate from scope of the present invention.
Mixed light-electrical cables core assembly
With reference to Fig. 5, shown mixed light-electrical cables core assembly according to instruction structure of the present invention, and always by label 60 indications.Light-electrical cables core assembly 60 comprises: a plurality of light-electric conductors 40 of bundled setting; Be with 62, surround a plurality of light-electric conductors 40, be used for light-electric conductor 40 is tied together; With encirclement with 62 protective seam 64.Owing to described light-electric conductor 40 with reference to Fig. 3, omitted its description for the sake of simplicity here.
Should point out:, should understand and appreciate:, in mixed light-electrical cables core assembly 60, can comprise the light-electric conductor 40 of arbitrary number according to application though shown 7 light-electric conductors 40.In addition, the light-electric conductor 40 that is enclosed in here can be replaced wholly or in part by the light-electric conductor 54 of the Fig. 4 with 3 optical fiber components 16, can not deviate from scope of the present invention.
A plurality of light-electric conductors 40 have been determined a plurality of gaps 66 between exterior contour and the adjacent light-electric conductor 40.A plurality of filler rods 68 are set at by in the gap 66 that surrounds with 62 and two adjacent conductors 40, so that: conductor 40 and filler rod 68 have been determined the exterior contour near the shape of the expectation transversal section of cable core assembly 60.Filler rod 68 comprises that distortion fiber glass core 74 and extrusion molding are around the polymeric layer 76 that twists fiber glass core 74.
Packing material 70 is filled in the gap 66, is used for conductor 40 and filler rod 68 are combined.
The polymer jacket 64 that protective seam 64 in this illustrative example is extrusion moldings on 62 is to provide mechanical stability and protection.Cable 40, filler rod 68, be with 62, packing material 70 and polymer jacket 64 form core assemblies 60.Polymer jacket 64 can be formed by one or more layers according to application, comprises the polymer composites that staple fibre is strengthened.
With reference to Fig. 6, shown mixed light-electrical cables assembly and always indicated by label 90.Cable assembly 90 comprises with respect to the first metal wire assembly 92 of the central shaft screw arrangement of core assembly 60 and the second metal wire assembly 94.The first metal wire assembly 92 twines along the hand of spiral, and the second metal wire assembly 94 twines along antispin direction.The ground floor of sheathed wire can be the laying direction identical with spiral light-electric conductor 40, or can lay in opposite direction.
With reference to Fig. 7, shown another mixed light-electrical cables core assembly and always indicated by label 100.This optical cable core assembly 100 has the structure that is similar to previously described cable core assembly 40,60,80, except the structure of protective seam.
More particularly, cable assembly 100 has the shield system 102 that is arranged on around the cable core assembly 60, uses the staple fibre reinforced composite material as polymer jacket 64.With order from inside to outside, armouring assembly (package) 102 comprises: first strength members 106; First polymeric layer 108; Second strength members 110; With the second polymer layer 112.
Staple fibre reinforcing copolymer compound substance 64 is applied to, and preferably extrusion molding is being with on 62.First strength members 106 adopts the form of sheathed wire, twines and be partially submerged into staple fibre reinforcing copolymer 64 to lay angle.First polymeric layer 108 is also strengthened by staple fibre, and extrusion molding encases it on first strength members 106.First polymeric layer 108 is attached to polymer jacket 64 by the gap between first strength members 106.Second strength members 110 adopts the form of sheathed wires, and twines along the direction spiral opposite with first strength members 106.Second strength members 110 is partly embedded first polymeric layer 108.
The second polymer layer 112 is also strengthened by staple fibre, and extrusion molding encases it on second strength members 106.The second polymer layer 112 is attached to first polymeric layer 108 by the gap between second strength members 110.
Have little thickness and can be employed covering the second polymer layer 112 to produce level and smooth low-friction surface by the outer (not shown) that virgin rubber (virgin polymer) material is made.
Core assembly
With reference to Fig. 8, shown optional core assembly and always indicated by label 120.Core assembly 120 comprises: a plurality of first light-electric conductor 122; With a plurality of second light-electric conductor 124.In Fig. 8,4 first light-electric conductor 122 and 5 second light-electric conductors 124 have been shown.First conductor 122 and second conductor 124 have the structure that is similar to conductor 40 (Fig. 3), 90 (Fig. 6), 100 (and Fig. 7), but are not limited to the structure that shows in instructions description and the accompanying drawing.According to application, the number and the winding that can change number, electric conductor 42, buffer structure or the protective seam of fiber optic component 10 are provided with.
As shown, first conductor 122 and second conductor 124 are by being with 126 to surround.First conductor 122 has the diameter bigger than second conductor 124.First conductor 122 has been determined a plurality of gaps 125.Second conductor 124 is set at contiguous with in 126 the gap 125.A plurality of filler rods 68 are set at contiguous with in the gap 125 between 126 and two adjacent first and second conductors 122 and 124.Packing material 130 is filled in the gap 125, is used for conductor 122,124 and filler rod 68 are combined.
Though do not show in Fig. 8, in conjunction with Fig. 5,6 or 7 polymer jackets of describing 64 will be set at 120 top to finish the cable core assembly.
Other embodiment more of the present invention comprises: mixed light-electrical cables core assembly comprises a plurality of light-electrical cables and a plurality of gaps between adjacent light-electrical cables conductor of bundled setting and definite exterior contour; Be arranged on a plurality of filler rods in the gap of contiguous exterior contour; With the packing material that is filled in the gap, with in conjunction with a plurality of cables and filler rod to form core assembly.Fiber optic component can comprise: optical fiber; Cover the carbon on the optical fiber; Cushion around the carbon coating; With silicon layer or any other mollielast or the thermoplastic layer of extrusion molding around cushion, and be wrapped in fiber optic component a plurality of copper cash or nickel plated copper wire on every side spirally.First polymeric layer can surround copper cash or nickel plated copper wire, be used for the copper cash fix in position, and the second polymer layer can surround first polymeric layer.Alternatively, the 3rd copolymer layer can surround second copolymer layer.
In another embodiment, light-electrical cables core assembly comprises: a plurality of light-electric conductors of bundled setting; Each comprises photoconductor: optical fiber component has optical fiber and around the carbon-coating of optical fiber; Surround the electric conductor of fiber optic component; With the packing material that is used in conjunction with a plurality of light-electric conductors.A plurality of light-electric conductors have been determined a plurality of gaps, and packing material is filled the gap.
Manufacture method
With reference to Fig. 9 to 11, the exemplary method of making light-electrical cables assembly is described in more detail now in conjunction with Fig. 5.
At first, a plurality of light-electric assembly 40 bundled settings are to determine the structure near the expectation transversal section of cable assembly.A plurality of light-electric conductors 40 form exterior contour, and a plurality of gaps 66 between definite adjacent conductor 40.
Next, as shown in figure 10, a plurality of filler rods 68 are placed in the gap 66 of the contiguous exterior contour of being determined by a plurality of conductors 40, so that: the profile of being determined by bundled conductor 40 and filler rod 68 is near the transversal section of expectation.70 of packing materials are filled in the institute gapped 66, so that conductor 40 and filler rod 68 are combined.
As shown in figure 11, after packing material 70 is inserted gap 66, be with 62 to be wrapped in around conductor 40 and the filler rod 68, and polymer jacket 64 is applied to the top, thereby form core assembly 60.Two layers of armor wires 92 and 94 (Fig. 6) or armouring component system 102 (Fig. 7) are applied to the top of cable core assembly 60, thereby form cable assembly 90 or 100.
Thereby utilize the structure of fiber optic component 10, photoconductor 40, core assembly 60 and cable assembly 100, the optical fiber 12 with carbon-coating 14 has the fatigue lifetime of raising, and more difficult stress influence by bending.Carbon-coating 14 is also protected and is prevented hydrolysis.In addition, by the special arrangement of light-electrical cables according to the present invention, cable core assembly and protective seam, optical fiber 12 by further protection with to resistant to bending stresses.Therefore, can be improved the serviceable life of fiber optic component, light-electrical cables and light-electrical cables assembly.
Embodiments more of the present invention are to make the method for light-electrical cables assembly, comprising: a plurality of light-electrical cables conductor is provided; The bundled a plurality of light-electrical cables conductor that is provided with, described a plurality of light-electrical cables conductor has been determined a plurality of gaps between exterior contour and the adjacent light-electrical cables conductor; Then a plurality of filler rods are placed in the gap of contiguous exterior contour; Packing material is packed in the gap; Then at cable and filler rod placed around protective seam.This method also can be included in packing material is packed into the gap with after forming core assembly, at cable and filler rod placed around band.In addition, these methods can be included in extrusion molding polymer composites on cable and the filler rod, and wherein in some instances, first strength members is wrapped in around the polymer composites spirally along the hand of spiral.Laying direction can be identical or opposite with the laying direction of spiral light-electric conductor.
First strength members can comprise a plurality of sheathed wires.First polymeric layer can extrusion molding on first strength members, and around second strength members is wrapped in first polymeric layer along the opposite hand of spiral.In addition, the second polymer layer can be placed on second strength members.
Protective seam also can comprise the polymer jacket with sealing sheathed wire, and protective seam can comprise at least two kinds of sheathed wires.
In fact foregoing description of the present invention is exemplary, and the variation that does not therefore deviate from main idea of the present invention should be within the scope of the present invention.This variation should not be regarded as deviating from the spirit and scope of the present invention.

Claims (26)

1. fiber optic component comprises:
Optical fiber; And
Surround the carbon-coating of optical fiber, to form fiber optic component.
2. fiber optic component according to claim 1, wherein: carbon-coating comprises the carbon that covers on the optical fiber.
3. fiber optic component according to claim 1 also comprises: around the cushion of carbon-coating.
4. fiber optic component according to claim 3, wherein: cushion closely contacts with carbon-coating.
5. fiber optic component according to claim 3 also comprises: around the silicon layer of cushion.
6. fiber optic component according to claim 3, wherein cushion comprises: silicone layer; Soft elastomeric layer; Or thermoplastic layer; And perfluoro alkoxy (PFA) layer or fluoropolymer layer.
7. fiber optic component according to claim 3 also comprises: outside silicon layer.
8. fiber optic component according to claim 1, wherein: described element has high-NA, thereby has reduced the susceptibility of this element to the attenuated optical signal that caused by microbend and macrobending.
9. mixed light-electric conductor comprises:
At least one fiber optic component, this fiber optic component comprise optical fiber and center on the carbon-coating of optical fiber;
At least one electric conductor around at least one fiber optic component setting; With
Fixed bed around at least one electric conductor is provided with is used at least one electric conductor fix in position.
10. mixed light-electric conductor according to claim 9, wherein: fixed bed comprises first polymeric layer.
11. mixed light-electric conductor according to claim 9 also comprises: surround the strengthening layer of fixed bed, be used to improve the physical strength of mixed light-electric conductor.
12. mixed light-electric conductor according to claim 11, wherein: strengthening layer comprises the second polymer layer and terpolymer layer.
13. mixed light-electric conductor according to claim 12, wherein: the second polymer layer is set near the fixed bed, and has the hardness bigger than the terpolymer layer.
14. mixed light-electric conductor according to claim 9, wherein: at least one electric conductor comprises many copper cash or nickel plated copper wire.
15. mixed light-electric conductor according to claim 14, wherein: many copper cash or nickel plated copper wire are arranged on around at least one fiber optic component spirally.
16. mixed light-electric conductor according to claim 9, wherein: at least one fiber optic component also comprises:
With the cushion that carbon-coating closely contacts, described cushion comprise silicon layer or any other mollielast or thermoplastic layer and PFA layer or other fluoropolymer that is fit to and
Outside silicon layer or any other mollielast or the thermoplastic layer of extrusion molding around cushion.
17. an armouring component system that is used for cable assembly comprises:
Be fit to surround the polymer composites of cable core;
Surround first strength members of polymer composites;
Surround first polymeric layer of first strength members;
Surround second strength members of first polymeric layer; With
Surround the second polymer layer of second strength members.
18. armouring component system according to claim 17, wherein: at least one in polymer composites, first polymeric layer and the second polymer layer strengthened through staple fibre.
19. armouring component system according to claim 17, wherein: first strength members is partially submerged into polymer composites.
20. armouring component system according to claim 17, wherein: second strength members is partially submerged in first polymeric layer.
21. armouring component system according to claim 17, wherein: first polymeric layer surrounds first strength members.
22. armouring component system according to claim 17, wherein: the second polymer layer surrounds second strength members.
23. armouring component system according to claim 17, wherein: at least one in polymer composites, first polymeric layer and the second polymer layer forms by extruding, and is attached to the second polymer layer from cable core.
24. armouring component system according to claim 17 also comprises: around the exterior layer that the second polymer layer is provided with, exterior layer has level and smooth low friction outer surface.
25. armouring component system according to claim 17, wherein: first strength members and second strength members comprise sheathed wire.
26. armouring component system according to claim 25, wherein: sheathed wire twines along opposite direction spiral.
CNA2008100923497A 2007-04-25 2008-04-22 Bend insensitive opto-electrical cables with improved fatigue life Pending CN101295061A (en)

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US74009307A 2007-04-25 2007-04-25
US11/740,093 2007-04-25

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CN101957482B (en) * 2009-04-09 2015-05-13 康宁光缆系统有限公司 Armored fiber assembly and method of forming same
CN102460606A (en) * 2009-05-27 2012-05-16 普睿司曼股份公司 Electric cable with strain sensor and monitoring system and method for detecting strain in at least one electric cable
CN102460606B (en) * 2009-05-27 2014-04-16 普睿司曼股份公司 Electric cable with strain sensor and monitoring system and method for detecting strain in at least one electric cable
CN103926061A (en) * 2009-05-27 2014-07-16 普睿司曼股份公司 Deformation monitoring method and system for measuring tensile strain of cable
CN103926061B (en) * 2009-05-27 2017-04-26 普睿司曼股份公司 Deformation monitoring method and system for measuring tensile strain of cable
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CN102314967A (en) * 2011-06-21 2012-01-11 蒋菊生 Optical fiber composite low-voltage cable
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CN102621648A (en) * 2012-04-27 2012-08-01 江苏七宝光电集团有限公司 Guiding optical fiber
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