CN202305952U - able with high sensitivity - Google Patents
able with high sensitivity Download PDFInfo
- Publication number
- CN202305952U CN202305952U CN2011204396758U CN201120439675U CN202305952U CN 202305952 U CN202305952 U CN 202305952U CN 2011204396758 U CN2011204396758 U CN 2011204396758U CN 201120439675 U CN201120439675 U CN 201120439675U CN 202305952 U CN202305952 U CN 202305952U
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- Prior art keywords
- optical cable
- high sensitivity
- layer
- waterstop
- temperature
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Abstract
The utility model belongs to the field of the novel communication optical cable, specifically relating to an optical cable with high sensitivity. An electrical heating element is arranged in a water-blocking tape; the electrical heating element is two electric leads which form a current loop; and the electric leads are copper conductor coated with insulating layers. Therefore, by heating the optical cable so as to make the temperature of the optical cable higher than the ambient temperature, and by using the feature that the heat capacity and heat transfer rate of the material or the environment around the optical cable laying region abnormal point are different from the heat capacity and heat transfer rate of the material or the environment around the normal point, a temperature difference which is enough to be measured is generated between the abnormal point and the normal point, thus effectively increasing the applied range of the existing optical cable and improving the measured sensitivity of the existing optical cable.
Description
[technical field]
The utility model relates to the communications optical cable field, specifically refers to a kind of high sensitivity optical cable.
[background technology]
Optical cable is one of common input and delivery means, and optical cable is widely used in a plurality of fields at present, like wired TV, network communication, remote signal transmission etc.In recent years, along with the progressively raising of commercial production and living standards of the people, efficient and safety is more and more paid attention to by people.Usually, optical cable transmits signal through inner optical fiber, some application scenario need with its be embedded in underground or dam in, need bear overstocking and collision in the concreting process, optical cable and optical fibres does not fracture and damages after must guaranteeing to construct.Therefore, optical cable needs compressive resistance and anti-destructive power.It is plastic protecting casing that optical cable in the existing distributed optical fiber temperature sensing system, its structure comprise outer, is provided with optical fiber loose tube, waterstop, central part in the plastic protecting casing and the cable cream that blocks water, and is equipped with optical fiber in the said optical fiber loose tube.The temperature that optical cable measured is the temperature of optical cable laying place and near environment, when finding the temperature anomaly in somewhere, can judgement place should locate existing problems.There is situation for abnormity point temperature and normal point temperature than big-difference; Existing optical cable has good sensitivity usually; But for the temperature of the abnormity point situation the same or approaching with the temperature of normal point, such as all consistent or approaching with the environment temperature situation of the temperature of the two, then existing optical cable is distinguished very much; Therefore need improve existing optical cable, to enlarge the sensitivity of its range of application and monitoring.
[utility model content]
The utility model purpose is to solve the deficiency of existing optical cable to complex environment sensitivity, and a kind of optical cable of high sensitivity of simple in structure, dependable performance is provided.
The utility model high sensitivity optical cable; Comprise an external sheath layer, be provided with waterstop in the said external sheath layer, be provided with the cable cream that blocks water of optical fiber loose tube, centre pull part and filling in the said waterstop; Be equipped with optical fiber in the said optical fiber loose tube; Also be provided with electric heating body in the wherein said waterstop, said electric heating body is two conductor wires that constitute current return, and described conductor wire is for being provided with the copper conductor of insulation course outward.
Preferably, said external sheath layer also is coated with the high temperature resistant sheath of one deck outward.
Further, said centre pull part is the metalwork of phosphatization steel wire quality, and the metalwork external packets is covered with the bed course of PE material.
Be disposed with the first metal layer, internal layer restrictive coating, second metal level between said waterstop and the said external sheath layer from the inside to the outside, the said the first metal layer and second metal level are steel band.
Said internal layer sheath and external sheath layer are processed for the PE material.
The beneficial effect of the utility model optical cable: because in optical cable, increased electric heating body; Thereby can be through heating makes the temperature of optical cable be higher than environment temperature to optical cable; The characteristics of utilizing thermal capacitance and the heat transfer rate etc. of thermal capacitance and heat transfer rate etc. that the optical cable laying regional anomaly puts peripheral material or environment and normal point periphery material or environment there are differences again; Make and produce a temperature difference that is enough to measure between abnormity point and the normal point; Thereby effectively enlarged the range of application of existing optical cable, the sensitivity that has improved existing fiber optic cable monitor, and the utility model optical cable is not disturbed by extraneous destruction and stress in the use of following long-life of rugged environment.
[description of drawings]
Fig. 1 is the cross-sectional structure synoptic diagram of the utility model optical cable.
[embodiment]
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Be to be understood that practical implementation instance described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Shown in Figure 1 is the optical cable cross sectional representation of the utility model, and this optical cable comprises waterstop 2, the first metal layer 8, internal layer sheath 9, second metal level 10 and external sheath layer 1 from the inside to the outside successively, the said external sheath layer 1 outer high temperature resistant sheath 7 of one deck that also is coated with.Wherein the first metal layer 8 and second metal level 10 are steel band; The first metal layer 8 is coated on the periphery of waterstop 2, has a centre pull part 4, at least two optical fiber loose tubes 3 and two to constitute the electric heating bodies that copper conductor 6 current return and that have external insulation layer constitutes in the waterstop 2.Be equipped with 2～4 in the said optical fiber loose tube 3 and adopt the tangle optical fiber 31 of structure of SZ layers, be filled with the cable cream 5 that blocks water in the waterstop 2.
Described centre pull part 4 is a metalwork, is used for strengthening the stretch-proof ability of optical cable, can adopt the phosphatization wire material as reinforcement, and the bed course 41 of PE material is arranged between centre pull part 4 and the other materials.
The copper conductor 6 of said formation electric heating body and optical fiber loose tube 3 be distributed on centre pull part 4 around, copper conductor 6 peripheries also are provided with PE sheath 61.In addition, described internal layer sheath 9 and external sheath layer 1 are the sheath of PE material.
The utility model high sensitivity optical cable can be used for occasions such as seepage of dam measurement, and the principle of measurement is: optical cable is embedded in the dam body, and under the heating state of normally not switching on, the temperature of optical cable and the temperature of external environment condition are basic identical; After adding certain voltage for the copper conductor two ends, copper conductor produces certain electric current and heats up in current return, and near the optical cable the copper conductor also heats up thereupon.At this moment, the optical cable temperature will be slightly higher than the environment temperature at place, its place, if certain local place infiltration, the optical cable temperature variation in rises will be faster than the temperature variation of other parts so, just give a warning after the system senses temperature variation and point out seepage.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. high sensitivity optical cable; Comprise an external sheath layer, be provided with waterstop in the said external sheath layer, be provided with the cable cream that blocks water of optical fiber loose tube, centre pull part and filling in the said waterstop; It is characterized in that: be equipped with optical fiber in the said optical fiber loose tube; Also be provided with electric heating body in the said waterstop, said electric heating body is two conductor wires that constitute current return, and described conductor wire is for being provided with the copper conductor of insulation course outward.
2. high sensitivity optical cable according to claim 1 is characterized in that: said external sheath layer also is coated with the high temperature resistant sheath of one deck outward.
3. high sensitivity optical cable according to claim 1 is characterized in that: said centre pull part is the metalwork of phosphatization steel wire quality, and the metalwork external packets is covered with the bed course of PE material.
4. high sensitivity optical cable according to claim 1; It is characterized in that: be disposed with the first metal layer, internal layer restrictive coating, second metal level between said waterstop and the said external sheath layer from the inside to the outside, the said the first metal layer and second metal level are steel band.
5. high sensitivity optical cable according to claim 4 is characterized in that: said internal layer sheath and external sheath layer are processed for the PE material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204396758U CN202305952U (en) | 2011-11-08 | 2011-11-08 | able with high sensitivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204396758U CN202305952U (en) | 2011-11-08 | 2011-11-08 | able with high sensitivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202305952U true CN202305952U (en) | 2012-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204396758U Expired - Fee Related CN202305952U (en) | 2011-11-08 | 2011-11-08 | able with high sensitivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202305952U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015023458A1 (en) * | 2013-08-13 | 2015-02-19 | Corning Optical Communications LLC | Optical fiber cable with cable heating element |
| US9304278B1 (en) | 2015-03-31 | 2016-04-05 | Corning Optical Communications LLC | Traceable cable with side-emitting optical fiber and method of forming the same |
| US10228526B2 (en) | 2015-03-31 | 2019-03-12 | Corning Optical Communications LLC | Traceable cable with side-emitting optical fiber and method of forming the same |
| US10234614B2 (en) | 2017-01-20 | 2019-03-19 | Corning Research & Development Corporation | Light source assemblies and systems and methods with mode homogenization |
| US10539747B2 (en) | 2017-12-05 | 2020-01-21 | Corning Research & Development Corporation | Bend induced light scattering fiber and cable assemblies and method of making |
| US10539758B2 (en) | 2017-12-05 | 2020-01-21 | Corning Research & Development Corporation | Traceable fiber optic cable assembly with indication of polarity |
| CN112964385A (en) * | 2021-02-10 | 2021-06-15 | 南京大学 | Internal heating temperature measurement optical cable, optical cable assembly and soil body measurement method |
-
2011
- 2011-11-08 CN CN2011204396758U patent/CN202305952U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015023458A1 (en) * | 2013-08-13 | 2015-02-19 | Corning Optical Communications LLC | Optical fiber cable with cable heating element |
| US9182561B2 (en) | 2013-08-13 | 2015-11-10 | Corning Cable Systems Llc | Optical fiber cable with cable heating element |
| US9304278B1 (en) | 2015-03-31 | 2016-04-05 | Corning Optical Communications LLC | Traceable cable with side-emitting optical fiber and method of forming the same |
| US10228526B2 (en) | 2015-03-31 | 2019-03-12 | Corning Optical Communications LLC | Traceable cable with side-emitting optical fiber and method of forming the same |
| US10234614B2 (en) | 2017-01-20 | 2019-03-19 | Corning Research & Development Corporation | Light source assemblies and systems and methods with mode homogenization |
| US10539747B2 (en) | 2017-12-05 | 2020-01-21 | Corning Research & Development Corporation | Bend induced light scattering fiber and cable assemblies and method of making |
| US10539758B2 (en) | 2017-12-05 | 2020-01-21 | Corning Research & Development Corporation | Traceable fiber optic cable assembly with indication of polarity |
| CN112964385A (en) * | 2021-02-10 | 2021-06-15 | 南京大学 | Internal heating temperature measurement optical cable, optical cable assembly and soil body measurement method |
| CN112964385B (en) * | 2021-02-10 | 2022-06-03 | 南京大学 | Internal heating temperature measurement optical cable, optical cable assembly and soil body measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Union Express Industrial Limited Assignor: Li Jijia Contract record no.: 2012440020333 Denomination of utility model: able with high sensitivity Granted publication date: 20120704 License type: Exclusive License Record date: 20121210 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Jijia Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Li Jijia Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20151108 |