CN210005751U - distributed optical cable - Google Patents
distributed optical cable Download PDFInfo
- Publication number
- CN210005751U CN210005751U CN201920785601.6U CN201920785601U CN210005751U CN 210005751 U CN210005751 U CN 210005751U CN 201920785601 U CN201920785601 U CN 201920785601U CN 210005751 U CN210005751 U CN 210005751U
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- CN
- China
- Prior art keywords
- optical cable
- sheath
- distributed
- particles
- granule
- 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.)
- Expired - Fee Related
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 41
- 239000002245 particle Substances 0.000 claims description 23
- 239000013307 optical fiber Substances 0.000 claims description 15
- 239000011247 coating layer Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000008187 granular material Substances 0.000 abstract description 9
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000007788 roughening Methods 0.000 abstract description 4
- 238000005253 cladding Methods 0.000 abstract 3
- 239000000835 fiber Substances 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an distributed optical cable, including the optical cable body, this optical cable body includes optic fibre, the cladding in the optic fibre outside, the cladding is at the sheath in the cladding outside, it has the granule of roughening treatment to distribute on the surface of sheath, the granule forms the skin on attaching to the surface of sheath, this distributed optical cable, through the granule of attaching to roughening treatment at the sheath surface, increase the coefficient of friction between optical cable and ground (geology) body, utilize the granule of optical cable surface distribution, directly bury the mutual interlock between the granule of formula optical cable and the ground body after backfilling, inlay admittedly, increase area of contact, improve the stability of optical cable, adaptability, improve monitoring quality.
Description
Technical Field
The utility model relates to an distributing type optical cable is applied to geology and geotechnical engineering monitoring.
Background
Since the eighties of the last century, the optical fiber sensing technology has been brought forward, and people pay general attention to the optical fiber sensing technology, and apply the optical fiber sensing technology to the fields of civil engineering, geotechnical engineering, hydraulic engineering, geological disasters and the like. The distributed optical fiber sensing technology in the optical fiber sensing technology refers to measurement or monitoring of information which is distributed along the space on an optical fiber transmission path and changes along time. People can monitor various physical quantities (such as deformation, temperature, strain, water content and the like) of the rock-soil body along the line by embedding the distributed sensing optical cable in the rock-soil body by utilizing the characteristics of the optical fiber and the characteristics of the distributed optical fiber sensing technology.
With the development of time, problems are also discovered when a distributed sensing optical cable is utilized, for example, in the field of geological geotechnical engineering, the coupling and embedding problems of the sensing optical cable and a rock-soil body are very important factors influencing the monitoring result, wherein the most important factor is the coupling and embedding problems of the sensing optical cable and the rock-soil body.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention provides an distributed optical cable.
In order to achieve the purpose, the utility model adopts the technical scheme that the distributed optical cable comprises an optical cable body, wherein the optical cable body comprises an optical fiber, a coating layer coated outside the optical fiber and a sheath coated outside the coating layer, roughened particles are distributed on the outer surface of the sheath, and the particles are attached to the outer surface of the sheath to form an outer layer.
, the diameter of the distribution cable with particles is 1.1-1.2 times the diameter of the cable body.
Further , the particles are sand or rubber particles.
, the particles are sprayed on the outer surface of the sheath.
, the sheath is made of polyvinyl chloride, polyethylene or low smoke halogen-free material.
Since the technical scheme is used, the utility model discloses distributed optical cable through the granule of adhering to roughening treatment at the sheath surface, increases the coefficient of friction between optical cable and the ground (geology) body, utilizes the granule of optical cable surface distribution, fills after the backfill mutual interlock between the granule of formula optical cable and the ground body, inlays admittedly, increases area of contact, improves the stability, the adaptability of optical cable, improves monitoring quality.
Drawings
Fig. 1 is a schematic structural diagram of exemplary embodiments of the distributed optical cable of the present invention;
fig. 2 is a schematic cross-sectional view of the distribution cable shown in fig. 1.
The reference numbers in the figures are:
1. an optical fiber; 2. a coating layer; 3. a sheath; 4. an outer layer; 41. and (3) granules.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, enables those skilled in the art to more readily understand the advantages and features of the present invention.
As can be seen from the schematic structural diagrams of fig. 1 to fig. 2, the distributed optical cable in this embodiment includes an optical cable body, the optical cable body includes an optical fiber 1, a coating layer 2 coated outside the optical fiber 1, and a sheath 3 coated outside the coating layer 2, and the material of the sheath 3 preferably adopts polyvinyl chloride (PVC), Polyethylene (PE), or low smoke zero halogen material (LSZH).
The roughened particles 41 are distributed on the outer surface of the sheath 3, and the particles 41 are attached to the outer surface of the sheath 3 to form the outer layer 4.
In the more preferred embodiments, the diameter of the distribution cable with particles 41 is 1.1-1.2 times the diameter of the cable body.
After the particles 41 are subjected to roughening treatment, the particles 41 have rough surfaces, each shape is irregular, and all the particles 41 are randomly arranged and attached to the outer surface of the sheath 3.
The material of the particles 41 can be set more practically, preferably with sand or rubber particles. The particles 41 are sprayed on the outer surface of the sheath 3.
According to the distributed optical cable, the roughened particles are attached to the outer surface of the sheath, so that the friction coefficient between the optical cable and a rock-soil (geological) body is increased, the particles distributed on the surface of the optical cable are utilized, and the particles of the directly-buried optical cable and the rock-soil body are mutually occluded and embedded after backfilling is finished, so that the contact area is increased, the stability and the adaptability of the optical cable are improved, and the monitoring quality is improved.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
- The distributed optical cable comprises an optical cable body, wherein the optical cable body comprises an optical fiber (1), a coating layer (2) coated on the outer side of the optical fiber (1), and a sheath (3) coated on the outer side of the coating layer (2), and is characterized in that roughened particles (41) are distributed on the outer surface of the sheath (3), and the particles (41) are attached to the outer surface of the sheath (3) to form an outer layer (4).
- 2. distributed optical cable according to claim 1, wherein the diameter of the distributed optical cable with the particles (41) is 1.1-1.2 times the diameter of the cable body.
- 3. An distributed optical cable according to claim 1, wherein the particles (41) are sand or rubber.
- 4. An distributed optical cable according to claim 1, wherein the particles (41) are sprayed on the outer surface of the sheath (3).
- 5. An distributed optical cable according to claim 1, wherein the material of the sheath (3) is polyvinyl chloride, polyethylene or low smoke zero halogen material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920785601.6U CN210005751U (en) | 2019-05-28 | 2019-05-28 | distributed optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920785601.6U CN210005751U (en) | 2019-05-28 | 2019-05-28 | distributed optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210005751U true CN210005751U (en) | 2020-01-31 |
Family
ID=69308328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920785601.6U Expired - Fee Related CN210005751U (en) | 2019-05-28 | 2019-05-28 | distributed optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210005751U (en) |
-
2019
- 2019-05-28 CN CN201920785601.6U patent/CN210005751U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20200131 Termination date: 20210528 |