CN202401396U - Intelligent cable capable of sensing internal humidity for bridge - Google Patents
Intelligent cable capable of sensing internal humidity for bridge Download PDFInfo
- Publication number
- CN202401396U CN202401396U CN 201120328304 CN201120328304U CN202401396U CN 202401396 U CN202401396 U CN 202401396U CN 201120328304 CN201120328304 CN 201120328304 CN 201120328304 U CN201120328304 U CN 201120328304U CN 202401396 U CN202401396 U CN 202401396U
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- CN
- China
- Prior art keywords
- cable
- bridge
- light fibre
- humidity
- fiber
- 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 - Lifetime
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Abstract
The utility model relates to an intelligent cable capable of sensing internal humidity for a bridge. The full length or a part of length of the cable is embedded with a fiber humidity sensor (13). The full length or the anchor terminal of the bridge cable is embedded with the fiber humidity sensor, and the fiber humidity sensor is integrated with the cable in the process of producing the cable. With the fiber humidity sensor detecting humidity of the internal cable, the intelligent cable capable of conducting real-time and on-line monitoring on humidity of the internal cable is produced. The intelligent cable transmits detection signals through fiber optical cables. The intelligent cable is safe and reliable in use, long in service lifetime and resistant to corrosion and is not affected by electromagnetic field.
Description
Technical field
The utility model relates to a kind of bridge intelligent cable of ability perception interior humidity, is applicable to line structures such as cable stayed bridge, suspension bridge, arch bridge.Also can be used for fields such as traffic, building, belong to bridge construction part technical field.
Background technology
Cable is as the main load parts of bridge, and key characteristic such as the line style of bridge, distribution of internal force, load and even whole structural safety all can obtain concentrated expression on cable.In addition, projected life of cable, in use cable self will inevitably receive rainwater up to more than 35 years, the erosion of steam etc., the steel cable failure is often because humidity is excessive and produce corrosion in the rope.If can monitor cable humidity inside and corrosion situation and timely feedback in real time; Be convenient to structural safety and operational regime that people grasp cable self and full-bridge; In time discovery accident tendency, prevent the generation of sudden accident, this has crucial social effect and economic worth for bridge operation department.
The utility model content
The purpose of the utility model is to overcome above-mentioned deficiency, and a kind of bridge intelligent cable of the ability perception interior humidity that can monitor cable humidity inside situation in real time and in time feed back is provided.
The purpose of the utility model be achieved in that a kind of can perception the bridge intelligent cable of interior humidity, be characterized in: light fibre humidity transducer arranged in that said cable is inner embedding.
The bridge intelligent cable of the utility model ability perception interior humidity, the embedding or local cable inside that is embedded in of said light fibre humidity transducer total length.
The bridge intelligent cable of the utility model ability perception interior humidity, the steel tendon of the embedding said cable cable body of said light fibre humidity transducer total length is peripheral; Or reserve stainless steel tube at the anchor end of said cable, and said light fibre humidity transducer is placed in the stainless steel tube, and this light fibre humidity transducer is drawn with optical cable from the anchor end.
The bridge intelligent cable of the utility model ability perception interior humidity, the type of said light fibre humidity transducer is fiber grating, fiber F-P cavity, photonic crystal fiber or optical fiber sensitive membrane.
Light fibre humidity transducer is a kind of sensing element of function admirable; Can process dissimilar light fibre humidity transducer (for example optical fiber Bragg raster, LPFG, optical fiber sensitive membrane, fiber F-P cavity, photonic crystal fiber etc.) according to the variation of measuring light wavelength, phase place, loss, can effectively measure the humidity of test environment.Wherein optical fiber Bragg raster, LPFG, optical fiber sensitive membrane can realize the long-distance distributed measurement of whole piece optical fiber, and fiber F-P cavity and photonic crystal fiber can be made the probe form, realize the local location measurement.That light fibre humidity transducer has is corrosion-resistant, do not receive electromagnetic interference, do not receive ambient noise interference, the collection sensing be transmitted in one, characteristics simple in structure, easy to use, that certainty of measurement is high.
The beneficial effect of the utility model is:
The utility model is through inner elongated or at the embedding light fibre humidity transducer of cable anchor end at bridge cable; Light fibre humidity transducer is become one with cable in the manufacture process of cable, survey cable humidity inside situation through light fibre humidity transducer and process the intelligent cable that can carry out real time on-line monitoring cable humidity inside situation.This intelligent cable transmits detectable signal through optical fiber cable.Have safe and reliablely, do not receive electromagnetic field effects, advantage such as the life-span is long, and is corrosion-resistant.
Description of drawings
Fig. 1 is the bridge intelligent cable sketch map of the ability perception interior humidity of the embedding light fibre humidity transducer of the utility model total length.
Fig. 2 is the bridge intelligent cable sketch map of the ability perception interior humidity of the local embedding light fibre humidity transducer of the utility model.
Fig. 3 is the enlarged drawing of I among Fig. 2.
Fig. 4 is the intelligent cable schematic cross-section.
Among the figure:
Cover plate 1, anchor slab 2, anchor cup 3, nut 4, centering ring 5, stainless steel tube 6, first connecting cylinder 7, nylon location-plate 8, second connecting cylinder 9, O-ring seal 10, seal joint 11, retaining filament plate 12, light fibre humidity transducer 13, high-strength polyester fibers band 14, oversheath 15, zinc-coated wire 16, cable body 17.
The specific embodiment
Embodiment 1: elongated embedding method
Referring to Fig. 1, Fig. 1 is the bridge intelligent cable sketch map of the ability perception interior humidity of the embedding light fibre humidity transducer of the utility model total length.Can find out by Fig. 1; The bridge intelligent cable of the utility model ability perception interior humidity; Comprise cable body, place light fibre humidity transducer 13 in the steel tendon periphery of said cable body, and be wrapped with high-strength polyester fibers band 14 again in the steel tendon periphery that is placed with light fibre humidity transducer 13 cable bodies; Form oversheath 15 through extrusion molding again in the cable body steel wire periphery that is wrapped with the high-strength polyester fibers band at last, like Fig. 4.It is inner to make light fibre humidity transducer be embedded in steel wire whole piece cable body, so that accurately, fully detect the humidity of whole piece cable body inner space.
In anchor slab 2, draw optical cable then.
Embodiment 2: local embedding method
Referring to Fig. 2, Fig. 2 is the bridge intelligent cable sketch map of the ability perception interior humidity of the local embedding light fibre humidity transducer of the utility model.Can find out that by Fig. 2 the difference of present embodiment and embodiment 1 is: light fibre humidity transducer 13 is installed in the inner stainless steel tube 6 of anchor end,, makes the fully ambient humidity of the interior zinc-coated wire of perception rope of light fibre humidity transducer like Fig. 3.Light fibre humidity transducer 13 can be placed on one at anchor end, also can be put in respectively in the stainless steel tube at anchor end two.Light fibre humidity transducer 13 is drawn with optical cable from the anchor end.Process can on-line real time monitoring cable interior humidity bridge use cable.
The type of the utility model light fibre humidity transducer can be types such as fiber grating, fiber F-P cavity, photonic crystal fiber, optical fiber sensitive membrane.
Claims (6)
1. the bridge intelligent cable of an ability perception interior humidity is characterized in that: light fibre humidity transducer (13) arranged in that said cable is inner embedding.
2. the bridge intelligent cable of a kind of ability perception interior humidity according to claim 1 is characterized in that: the embedding or local cable inside that is embedded in of said light fibre humidity transducer (13) total length.
3. the bridge intelligent cable of a kind of ability perception interior humidity according to claim 2, it is characterized in that: the steel tendon of the embedding said cable cable body of said light fibre humidity transducer (13) total length is peripheral.
4. the bridge intelligent cable of a kind of ability perception interior humidity according to claim 2; It is characterized in that: the anchor end at said cable is reserved stainless steel tube (6); Said light fibre humidity transducer (13) is placed in the stainless steel tube (6), and this light fibre humidity transducer (13) is drawn with optical cable from the anchor end.
5. the bridge intelligent cable of a kind of ability perception interior humidity according to claim 4, it is characterized in that: said light fibre humidity transducer (13) is put in one at anchor end, or is put in anchor end two.
6. according to the bridge intelligent cable of claim 1 or 2 or 3 or 4 or 5 described a kind of ability perception interior humidities, it is characterized in that: the type of said light fibre humidity transducer (13) is fiber grating, fiber F-P cavity, photonic crystal fiber or optical fiber sensitive membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120328304 CN202401396U (en) | 2011-09-03 | 2011-09-03 | Intelligent cable capable of sensing internal humidity for bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120328304 CN202401396U (en) | 2011-09-03 | 2011-09-03 | Intelligent cable capable of sensing internal humidity for bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202401396U true CN202401396U (en) | 2012-08-29 |
Family
ID=46699050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120328304 Expired - Lifetime CN202401396U (en) | 2011-09-03 | 2011-09-03 | Intelligent cable capable of sensing internal humidity for bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202401396U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106544911A (en) * | 2016-11-06 | 2017-03-29 | 北京恒润生工程科技有限公司 | Smart stay cable perceived based on photonic crystal fiber and preparation method thereof |
| CN107420391A (en) * | 2017-03-30 | 2017-12-01 | 江苏骏龙光电科技股份有限公司 | A kind of mounting process suitable for bridge cable fiber-optic grating sensor |
| CN107587427A (en) * | 2017-08-23 | 2018-01-16 | 柳州欧维姆机械股份有限公司 | A kind of conveniently drag-line of detection internal corrosion environment and cable body corrosion condition |
| CN108426840A (en) * | 2018-05-21 | 2018-08-21 | 大连理工大学 | A kind of real-time sensor for measuring inside concrete humidity |
-
2011
- 2011-09-03 CN CN 201120328304 patent/CN202401396U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106544911A (en) * | 2016-11-06 | 2017-03-29 | 北京恒润生工程科技有限公司 | Smart stay cable perceived based on photonic crystal fiber and preparation method thereof |
| CN107420391A (en) * | 2017-03-30 | 2017-12-01 | 江苏骏龙光电科技股份有限公司 | A kind of mounting process suitable for bridge cable fiber-optic grating sensor |
| CN107587427A (en) * | 2017-08-23 | 2018-01-16 | 柳州欧维姆机械股份有限公司 | A kind of conveniently drag-line of detection internal corrosion environment and cable body corrosion condition |
| CN108426840A (en) * | 2018-05-21 | 2018-08-21 | 大连理工大学 | A kind of real-time sensor for measuring inside concrete humidity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
|
| CX01 | Expiry of patent term |