CN203551831U - Optical fiber unit with communication and sensing functions - Google Patents
Optical fiber unit with communication and sensing functions Download PDFInfo
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- CN203551831U CN203551831U CN201320608380.8U CN201320608380U CN203551831U CN 203551831 U CN203551831 U CN 203551831U CN 201320608380 U CN201320608380 U CN 201320608380U CN 203551831 U CN203551831 U CN 203551831U
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- fiber
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- optical fiber
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Abstract
The utility model discloses an optical fiber unit with communication and sensing functions. The optical fiber unit comprises a tightly-wrapped optical fiber sensing unit, a plurality of precoated optical fibers and an optical fiber unit protective tube arranged on the outer portion in a loose mode, wherein the precoated fibers are reversely twisted on the tightly-wrapped optical fiber sensing unit and used for communication. The optical fiber unit enables communication transmission to be free of external interference while sensing sensitivities on the changes of external physical fields are also maintained, and the same optical fiber unit acquires the sensing and communication functions.
Description
Technical field
The utility model relates to a kind of fiber unit, relates in particular to a kind of fiber unit with communication and sensing function.
Background technology
The optical fiber that distribution type fiber-optic measurement sensor-based system is usingd in optical cable is as sensing element, on the continuous length of whole piece optical fiber, continuous function form with distance provides the variation with fiber length by heat transfer agent, and optical fiber used is also simultaneously for by the transmission of heat transfer agent.
Communication function for optical cable, the principle of design of its structure is that optical fiber and external temperature, external force, vibration, the impacts such as damp environment of wetting in cable are isolated as much as possible, to guarantee light signal transmitting under the condition that is not subject to external action.Therefore, communications optical cable mainly adopts loose structure technology, and the optical fiber in fiber unit relaxes in protection tube, and has enough excess fiber lengths with respect to optical cable.
Sensing function for optical cable, the basic design principles of its structure be allow outside some or certain is several sensitive and pass in real time the optical fiber in cable by heat transfer agent.Therefore, sensing cable mainly adopts locking structure technology, conventionally adopts tightly packaged fiber, and in cable, almost there is no remaining length.
Loose cable structure can be for sensing, but insufficient sensitivity conventionally; Tight jacketed cable can be for communication, but extraneous disturbance easily affects communication quality.In order to take into account communication and sensing function, in optical cable, can hold loose structure fiber unit and the sensing locking structure fiber unit of a plurality of communication use simultaneously.
But some optical cable (as OPGW, OPPC or sea light cable etc.) is as adopted a plurality of fiber units, the aspects such as the properity of cable that can be right and cost produce significant impact, in the urgent need to single fiber unit, have communication and sensing function simultaneously.
Utility model content
The utility model provides a kind of fiber unit with communication and sensing function, and this fiber unit has communication and sensing function simultaneously,
The technical solution adopted in the utility model is:
Have communication and the fiber unit of sensing function, this fiber unit comprises that a tightly packaged fiber sensing unit in center and commutation are stranded in some on tightly packaged fiber sensing unit and communicate by letter with precoated fiber and the loose fiber unit protection tube overlapping outside.
Described precoated fiber surface is containing the color or the colour circle that are useful on the fine order of identification.
In described fiber unit protection tube, be also filled with material water-proof material.
Described tightly packaged fiber sensing unit is the tightly packaged fiber of single core or multicore.
Described tightly packaged fiber inside can be contained reinforcing element as required.
The manufacture method with the fiber unit of communication and sensing function, with a tightly packaged fiber sensing unit, pass through the center pit of separated time rotating disk, with many precoated fibers, through the dispensing orifice of separated time rotating disk, be wrapped on tightly packaged fiber sensing unit and form fibre bundle, this fibre bundle is imported to optical fiber beam convergence device, start optical fiber stranding device and fiber unit protection tube former, apply laying tension to tightly packaged fiber sensing unit and make it collimation, to precoated fiber, apply laying tension, the laying tension that tightly packaged fiber sensing unit applies is greater than the laying tension that precoated fiber applies, in the moulding of fiber unit protection tube, precoated fiber is stranded on tightly packaged fiber sensing unit with certain angle and periodic reverse.
By the filling device on fiber unit protection tube former, in fiber unit protection tube, fill material water-proof material.
Described optical fiber stranding device comprise one by reversible slowspeed machine, driven have center pit, along the separated time rotating disk of the uniform some dispensing orifices in axle center, this center pit directly passes through for tightly packaged fiber sensing unit, and along axle center, uniform dispensing orifice is used for precoated fiber being passed and carrying out fine order distribution.
Described fibre bundle convergence apparatus is a metal tube; the fibre bundle that the internal diameter of this metal tube can hold tightly packaged fiber sensing unit and form around the precoated fiber on tightly packaged fiber sensing unit, the external diameter of this metal tube penetrates the endoporus of fiber unit protection tube and leaves gap.
Described fiber unit protection tube former is metal or nonmetal loose sleeve pipe manufacturing equipment.
The beneficial effects of the utility model: long very little more than the tightly packaged fiber sensing unit in center, kept the sensing sensitivity that physical field changes to external world; Change has obtained required remaining length to the precoated fiber being wrapped on tightly packaged fiber sensing unit, makes communications not be subject to external interference; Same fiber unit obtained sensing and the function of communicating by letter, reduced cable structure, improved performance, reduced cost.
Accompanying drawing explanation
Fig. 1 is the fiber unit cross sectional representation that the utlity model has communication and sensing function.
Fig. 2 is the multicore tightly packaged fiber sensing unit cross sectional representation containing reinforcing element.
Fig. 3 is the schematic diagram of Plant arrangement in the utility model manufacture method.
Fig. 4 is the utility model optical fiber stranding device separated time rotating disk schematic diagram.
Wherein: 1, tightly packaged fiber sensing unit, 2, precoated fiber, 3, material water-proof material, 4, fiber unit protection tube; 5, optical fiber stranding device, 6, separated time rotating disk, 7, center pit, 8, dispensing orifice; 9, fibre bundle convergence apparatus, 10, fiber unit protection tube former, 11, reinforcing element.
Embodiment
In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment only, for explaining the utility model, does not form the restriction to protection domain of the present utility model.
As shown in Figures 1 to 4; of the present utility model have communication and a fiber unit of sensing function, and this fiber unit comprises that a tightly packaged fiber sensing unit 1 in center and commutation are stranded in some on tightly packaged fiber sensing unit 1 and communicate by letter with precoated fiber 2 and the loose fiber unit protection tube 4 overlapping outside.
Precoated fiber 2 surface is containing the color or the colour circle that are useful on the fine order of identification, and precoated fiber 2 is colored optical fibers that external diameter is generally 0.25mm, and the tension force that many precoated fibers 2 are emitted from pay off rack should be consistent.
In fiber unit protection tube 4, be also filled with material water-proof material 3.
Tightly packaged fiber sensing unit 1 is the tightly packaged fiber of single core or multicore, tightly packaged fiber sensing unit 1 is that an external diameter is generally single core of 0.5mm～3.0mm, the tightly packaged fiber of multicore or include the fiber unit of reinforcing element 11, the tension force that it is emitted from pay off rack should be at least precoated fiber 2 1-2 doubly.Reinforcing element 11 is generally the nonmetallic materials such as aramid fiber.
The coverage rate of many precoated fibers 2 concentric arrangement around tightly packaged fiber sensing unit 1 is preferably 90%～95%.
The manufacture method with the fiber unit of communication and sensing function, with a tightly packaged fiber sensing unit 1, pass through the center pit 7 of separated time rotating disk 6, with the dispensing orifice 8 that many precoated fibers 2 pass separated time rotating disk 6, be wrapped on tightly packaged fiber sensing unit 1 and form fibre bundle, this fibre bundle is imported to optical fiber beam convergence device 9, start optical fiber stranding device 5 and fiber unit protection tube former 10, apply laying tension to tightly packaged fiber sensing unit 1 and make it collimation, apply laying tension to precoated fiber 2, the laying tension that tightly packaged fiber sensing unit 1 applies is greater than the laying tension that precoated fiber 2 applies, in 4 moulding of fiber unit protection tube, precoated fiber 2 is stranded on tightly packaged fiber sensing unit 1 with certain angle and periodic reverse.If necessary, can be by the filling device on fiber unit protection tube former 10 to the interior filling material water-proof material 3 of fiber unit protection tube 4.
Optical fiber stranding device 5 comprise one by reversible slowspeed machine, driven have center pit 7, the separated time rotating disk 6 of uniform some dispensing orifices 8 along axle center, this center pit 7 directly passes through for tightly packaged fiber sensing unit 1, and along axle center, uniform dispensing orifice 8 is for passing precoated fiber 2 and carrying out fine order distribution.These dispensing orifices 8 adopt the smooth high-abrasive materials such as high technology ceramics to make.
The rotation of separated time rotating disk 6 answer continuously smooth, Change to time should be without impact; it is controlling strand angle and the pitch of precoated fiber 2 on tightly packaged fiber sensing unit 1; under the normal line speed of fiber unit protection tube former 10, the twisting pitch of precoated fiber 2 should make it relative tightly packaged fiber sensing unit 1 0.2%～0.5% redundant length.
Fibre bundle convergence apparatus 9 is a metal tube; the fibre bundle that the internal diameter of this metal tube can hold tightly packaged fiber sensing unit 1 and form around the precoated fiber 2 on tightly packaged fiber sensing unit 1; this is with regard to the external diameter of the fibre bundle that requires the internal diameter of metal tube to be slightly larger than held tightly packaged fiber sensing unit 1 and form around the precoated fiber 2 on tightly packaged fiber sensing unit 1, and the external diameter of this metal tube penetrates the endoporus of fiber unit protection tube 4 and leaves gap.
Above-described fiber unit protection tube former 10 is metal or nonmetal loose sleeve pipe manufacturing equipment.
Fiber unit of the present utility model has communication and sensing function, and this fiber unit, because of long very little more than the hard-pressed bale sensing unit in center, has kept the sensing sensitivity of physical field variation to external world; The precoated fiber 2 that commutation is wrapped on sensing unit has obtained required remaining length, makes communications not be subject to external interference; Same fiber unit obtained sensing and the function of communicating by letter; Its manufacture method is simple and effective, reduced cable structure, improved performance, reduced cost.
Claims (5)
1. there is communication and the fiber unit of sensing function, it is characterized in that: this fiber unit comprises that a tightly packaged fiber sensing unit in center and commutation are stranded in some on tightly packaged fiber sensing unit and communicate by letter with precoated fiber and the loose fiber unit protection tube overlapping outside.
2. the fiber unit with communication and sensing function according to claim 1, is characterized in that: described precoated fiber surface is containing the color or the colour circle that are useful on the fine order of identification.
3. the fiber unit with communication and sensing function according to claim 1, is characterized in that: in described fiber unit protection tube, be also filled with material water-proof material.
4. the fiber unit with communication and sensing function according to claim 1, is characterized in that: described tightly packaged fiber sensing unit is the tightly packaged fiber of single core or multicore.
5. the fiber unit with communication and sensing function according to claim 4, is characterized in that: reinforcing element is contained in described tightly packaged fiber inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320608380.8U CN203551831U (en) | 2013-09-30 | 2013-09-30 | Optical fiber unit with communication and sensing functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320608380.8U CN203551831U (en) | 2013-09-30 | 2013-09-30 | Optical fiber unit with communication and sensing functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203551831U true CN203551831U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320608380.8U Expired - Lifetime CN203551831U (en) | 2013-09-30 | 2013-09-30 | Optical fiber unit with communication and sensing functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203551831U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487878A (en) * | 2013-09-30 | 2014-01-01 | 江苏通光光缆有限公司 | Optical fiber unit with communication and sensing functions and manufacturing method thereof |
| CN110058365A (en) * | 2017-03-15 | 2019-07-26 | 杭州富通通信技术股份有限公司 | Multi-core optical fiber beam Loose tube |
-
2013
- 2013-09-30 CN CN201320608380.8U patent/CN203551831U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487878A (en) * | 2013-09-30 | 2014-01-01 | 江苏通光光缆有限公司 | Optical fiber unit with communication and sensing functions and manufacturing method thereof |
| CN103487878B (en) * | 2013-09-30 | 2015-11-04 | 江苏通光光缆有限公司 | There is fiber unit and the manufacture method thereof of communication and sensing function |
| CN110058365A (en) * | 2017-03-15 | 2019-07-26 | 杭州富通通信技术股份有限公司 | Multi-core optical fiber beam Loose tube |
| CN110058365B (en) * | 2017-03-15 | 2020-07-03 | 杭州富通通信技术股份有限公司 | Multi-core optical fiber bundle loose tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170516 Address after: To help the park 637260 Sichuan Xichong County Patentee after: SICHUAN TONGGUANG CABLE CO., LTD. Address before: 226100, No. 3966, No. 2, great way, Haimen port, Haimen, Jiangsu, Nantong Patentee before: Jiangsu Tongguang Optical Fiber Cable Co., Ltd. |