CN106381808A - Intelligent drawing rope based on optical fiber Sagnac interferometer and preparation method of intelligent drawing rope - Google Patents
Intelligent drawing rope based on optical fiber Sagnac interferometer and preparation method of intelligent drawing rope Download PDFInfo
- Publication number
- CN106381808A CN106381808A CN201610969193.0A CN201610969193A CN106381808A CN 106381808 A CN106381808 A CN 106381808A CN 201610969193 A CN201610969193 A CN 201610969193A CN 106381808 A CN106381808 A CN 106381808A
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- China
- Prior art keywords
- steel wire
- optical fiber
- sagnac interferometer
- epoxy resin
- fiber sagnac
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention discloses an intelligent drawing rope based on an optical fiber Sagnac interferometer and a preparation method of the intelligent drawing rope. The intelligent drawing rope is characterized by consisting of an intelligent steel wire (1) and other six common steel wires (5), wherein the intelligent steel wire consists of a steel wire body (1), the optical fiber Sagnac interferometer (2), a square slot (3) and epoxy resin (4); the square slot (3) is formed in the steel wire body (1); and the optical fiber Sagnac interferometer (2) is arranged in the square slot (3) and is fixed by the epoxy resin (4). The preparation method of the intelligent drawing rope comprises the following steps: fixing the steel wire body (1) on a conveying belt (6) of a rolling shaft; injecting the epoxy resin (4) by a dispenser (7) into the square slot (3); arranging the optical fiber Sagnac interferometer (2) into the square slot through an optical fiber coil (8); and injecting the epoxy resin to the outer surface of an optical fiber through another dispenser (9). By the adoption of an optical fiber sensing technology, the intelligent drawing rope can measure changes of parameters such as the temperature and the deformation of the steel wire precisely in real time, and has the advantages of electromagnetic interference resistance, corrosion resistance and the like.
Description
Technical field
The present invention relates to smart stay cable of optical fiber Sagnac interferometer and preparation method thereof is it is adaptable to bridge construction, light
The fields such as fine sensing.
Background technology
Drag-line is one of core component of cable-supported bridge, and is all arranged in outside beam body, by external environment,
The factors such as sound load action affect, and get rusty easily corrosion and fatigue damage, and its service phase is often than projected life much shorter.
The real-time monitoring how realizing drag-line working condition during one's term of military service is it is ensured that safety in its validity period, it has also become drag-line technology is sent out
One of key of exhibition.Traditional measuring method mainly has pressure gauge algoscopy, proving ring algoscopy, frequency of vibration method, resistance to answer
Become piece monitoring method, magnetic flux mensuration etc..These measuring technologies have long-term test inconvenient, be easily subject to the interference of electromagnetic field, poor durability,
Measuring distance and the shortcomings of be limited in scope.As pressure gauge algoscopy is applied to the cable force measurement of construction stage and measurement error relatively
Greatly；Proving ring algoscopy is to lay the survey of overall tension force under proving ring is realized to guy anchor under the anchor slab of stay cable end anchorage
Amount, the method not only fix by measurement position, and may be affected by the frictional force in anchorage casing or implant, is in addition subject to partially
Carry impact larger；Although frequency of vibration method is fairly simple, accurate results contrast to be obtained difficult；Although magnetic flux technology has
There is certain durable sexual clorminance, but magnetic flux transducer presence leads to need due to magnetic degeneration, sensor nonlinear feature etc.
Want the problem of secondary demarcation, be also not completely suitable to the long-term real time health monitoring of drag-line.
Content of the invention
The technical problem to be solved is to provide a kind of smart stay cable of optical fiber Sagnac interferometer and its system
Preparation Method.
Technical scheme：
A kind of smart stay cable based on optical fiber Sagnac interferometer and preparation method thereof it is characterised in that：This smart stay cable by
Intelligent steel wire（1）With other six roots of sensation ordinary steel wire（5）Constitute, intelligent steel wire is by steel wire（1）, optical fiber Sagnac interferometer（2）、
Square groove（3）, epoxy resin（4）Constitute, wherein steel wire（1）Evolution groove（3）, optical fiber Sagnac interferometer（2）It is placed in square groove（3）
Interior, and use epoxy resin（4）Fixing.
This manufacture method comprises the steps：
（1）By steel wire（1）It is fixed on the transmission belt of roller bearing（6）On；
（2）Point gum machine（7）By epoxy resin（4）Slowly accurately inject the square groove on steel wire（3）Interior；
（3）Roll of optical fiber（8）By optical fiber Sagnac interferometer（2）It is laid in the square groove of steel wire；
（4）Point gum machine（9）Fiber outer surface is injected epoxy resin；
（5）By heater（10）The steel wire brushed after two-layer glue is heated, improves the curing rate of glue；
（6）By intelligent steel wire and other six roots of sensation steel wires（5）Coiling forms smart stay cable；
The work process of the smart stay cable based on optical fiber Sagnac interferometer：After the light phase modulated device modulation that light source sends
Incide on optical fiber Sagnac interferometer, when the parameter such as the stress of steel wire and temperature does not change, optical fiber Sagnac
The wavelength of interferometer will not change.When the parameter such as the stress of steel wire and temperature changes, photodetector will detect
Optical fiber Sagnac interferometer wavelength changes, and then can be with Parameters variation such as the stress of measuring steel wire, temperature, deformation.
Beneficial effects of the present invention：Smart stay cable based on optical fiber Sagnac interferometer proposed by the present invention and its preparation
Method, using the sensing technology of optical fiber Sagnac interferometer, has distance monitoring, low energy dependency, high environmental resistance
Property, electromagnetism interference, anticorrosive the advantages of.Optical fiber Sagnac interferometer is placed in the square groove of steel wire so that optical fiber simultaneously
Sagnac interferometer transducer sensitivity and accuracy are greatly improved.
Brief description
The intelligent structure of steel wire schematic diagram based on optical fiber Sagnac interferometer for the Fig. 1.
The smart stay cable structural representation based on optical fiber Sagnac interferometer for the Fig. 2.
The smart stay cable manufacture method based on optical fiber Sagnac interferometer for the Fig. 3.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Embodiment one, is shown in Fig. 1, Fig. 2, Fig. 3, a kind of smart stay cable based on optical fiber Sagnac interferometer and its preparation side
Method, this smart stay cable is made up of intelligent steel wire 1 and other six roots of sensation ordinary steel wire 5, and intelligent steel wire is by steel wire 1, optical fiber Sagnac
Interferometer 2, square groove 3, epoxy resin 4 are constituted, wherein steel wire 1 evolution groove 3, and optical fiber Sagnac interferometer 2 is placed in square groove 3,
And it is fixing with epoxy resin 4.
This manufacture method comprises the steps：
（1）Steel wire 1 is fixed in the transmission belt 6 of roller bearing；
（2）Epoxy resin 4 is slowly accurately injected in the square groove 3 on steel wire by point gum machine 7；
（3）Optical fiber Sagnac interferometer 2 is laid in the square groove of steel wire roll of optical fiber 8；
（4）Fiber outer surface is injected epoxy resin by point gum machine 9；
（5）By heater 10, the steel wire brushed after two-layer glue is heated, improve the curing rate of glue；
（6）Intelligent steel wire is formed smart stay cable with other six roots of sensation steel wire 5 coilings；
The work process of the smart stay cable based on optical fiber Sagnac interferometer：After the light phase modulated device modulation that light source sends
Incide on optical fiber Sagnac interferometer, when the parameter such as the stress of steel wire and temperature does not change, optical fiber Sagnac
The wavelength of interferometer will not change.When the parameter such as the stress of steel wire and temperature changes, photodetector will detect
Optical fiber Sagnac interferometer wavelength changes, and then can determine stress and the temperature change of steel wire.
The interference arm lengths of the Sagnac interferometer described in the present embodiment are 10cm, and the size of square groove is 1mm*1mm.
Embodiment two, is shown in Fig. 1, Fig. 2, Fig. 3, a kind of smart stay cable based on optical fiber Sagnac interferometer and its preparation side
Method, this smart stay cable is made up of intelligent steel wire 1 and other six roots of sensation ordinary steel wire 5, and intelligent steel wire is by steel wire 1, optical fiber Sagnac
Interferometer 2, square groove 3, epoxy resin 4 are constituted, wherein steel wire 1 evolution groove 3, and optical fiber Sagnac interferometer 2 is placed in square groove 3,
And it is fixing with epoxy resin 4.
This manufacture method comprises the steps：
（1）Steel wire 1 is fixed in the transmission belt 6 of roller bearing；
（2）Epoxy resin 4 is slowly accurately injected in the square groove 3 on steel wire by point gum machine 7；
（3）Optical fiber Sagnac interferometer 2 is laid in the square groove of steel wire roll of optical fiber 8；
（4）Fiber outer surface is injected epoxy resin by point gum machine 9；
（5）By heater 10, the steel wire brushed after two-layer glue is heated, improve the curing rate of glue；
（6）Intelligent steel wire is formed smart stay cable with other six roots of sensation steel wire 5 coilings；
The work process of the smart stay cable based on optical fiber Sagnac interferometer：After the light phase modulated device modulation that light source sends
Incide on optical fiber Sagnac interferometer, when the parameter such as the stress of steel wire and temperature does not change, optical fiber Sagnac
The wavelength of interferometer will not change.When the parameter such as the stress of steel wire and temperature changes, photodetector will detect
Optical fiber Sagnac interferometer wavelength changes, and then can determine stress and the temperature change of steel wire.
The interference arm lengths of the Sagnac interferometer described in the present embodiment are 50cm, and the size of square groove is 2mm*2mm.
Embodiment three, is shown in Fig. 1, Fig. 2, Fig. 3, a kind of smart stay cable based on optical fiber Sagnac interferometer and its preparation
Method, this smart stay cable is made up of intelligent steel wire 1 and other six roots of sensation ordinary steel wire 5, and intelligent steel wire is by steel wire 1, optical fiber Sa Genai
Gram interferometer 2, square groove 3, epoxy resin 4 are constituted, wherein steel wire 1 evolution groove 3, and optical fiber Sagnac interferometer 2 is placed in square groove 3
Interior and fixing with epoxy resin 4.
This manufacture method comprises the steps：
（1）Steel wire 1 is fixed in the transmission belt 6 of roller bearing；
（2）Epoxy resin 4 is slowly accurately injected in the square groove 3 on steel wire by point gum machine 7；
（3）Optical fiber Sagnac interferometer 2 is laid in the square groove of steel wire roll of optical fiber 8；
（4）Fiber outer surface is injected epoxy resin by point gum machine 9；
（5）By heater 10, the steel wire brushed after two-layer glue is heated, improve the curing rate of glue；
（6）Intelligent steel wire is formed smart stay cable with other six roots of sensation steel wire 5 coilings；
The work process of the smart stay cable based on optical fiber Sagnac interferometer：After the light phase modulated device modulation that light source sends
Incide on optical fiber Sagnac interferometer, when the parameter such as the stress of steel wire and temperature does not change, optical fiber Sagnac
The wavelength of interferometer will not change.When the parameter such as the stress of steel wire and temperature changes, photodetector will detect
Optical fiber Sagnac interferometer wavelength changes, and then can determine stress and the temperature change of steel wire.
The interference arm lengths of Sagnac interferometer described in the present embodiment are 90cm, and the size of square groove is 3mm*3mm.
Optical fiber Sagnac interferometer reflection wavelength of the present invention can be chosen according to the actual situation that is suitable for, the device being used
It is commercial devices.The above is only the detailed description to present pre-ferred embodiments, and protection scope of the present invention is not
It is limited to the above, those skilled in the art can carry out various modifications and modification according to the bright thought of we to the present invention,
These should belong to protection scope of the present invention.
Claims (2)
1. a kind of smart stay cable based on optical fiber Sagnac interferometer and preparation method thereof it is characterised in that：This smart stay cable
By intelligent steel wire（1）With other six roots of sensation ordinary steel wire（5）Constitute, intelligent steel wire is by steel wire（1）, optical fiber Sagnac interferometer
（2）, square groove（3）, epoxy resin（4）Constitute, wherein steel wire（1）Evolution groove（3）, optical fiber Sagnac interferometer（2）The side of being placed in
Groove（3）Interior, and use epoxy resin（4）Fixing.
2. the smart stay cable its preparation method based on optical fiber Sagnac interferometer according to claim 1, its feature exists
In：This manufacture method comprises the steps：
（1）By steel wire（1）It is fixed on the transmission belt of roller bearing（6）On；
（2）Point gum machine（7）By epoxy resin（4）Slowly accurately inject the square groove on steel wire（3）Interior；
（3）Roll of optical fiber（8）By optical fiber Sagnac interferometer（2）It is laid in the square groove of steel wire；
（4）Point gum machine（9）Fiber outer surface is injected epoxy resin；
（5）By heater（10）The steel wire brushed after two-layer glue is heated, improves the curing rate of glue；
（6）By intelligent steel wire and other six roots of sensation steel wires（5）Coiling forms smart stay cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610969193.0A CN106381808A (en) | 2016-11-06 | 2016-11-06 | Intelligent drawing rope based on optical fiber Sagnac interferometer and preparation method of intelligent drawing rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610969193.0A CN106381808A (en) | 2016-11-06 | 2016-11-06 | Intelligent drawing rope based on optical fiber Sagnac interferometer and preparation method of intelligent drawing rope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106381808A true CN106381808A (en) | 2017-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610969193.0A Pending CN106381808A (en) | 2016-11-06 | 2016-11-06 | Intelligent drawing rope based on optical fiber Sagnac interferometer and preparation method of intelligent drawing rope |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847038A (en) * | 2019-12-22 | 2020-02-28 | 智性纤维复合加固南通有限公司 | Self-sensing parallel steel wire inhaul cable and manufacturing method thereof |
| CN110939062A (en) * | 2019-12-22 | 2020-03-31 | 智性纤维复合加固南通有限公司 | Self-sensing extrusion inhaul cable and manufacturing method thereof |
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| CN1400451A (en) * | 2002-08-29 | 2003-03-05 | 武汉理工大学 | Monitoring method of long-period working state of optical fibre grating anchor wire and its equipment |
| CN1590638A (en) * | 2003-09-03 | 2005-03-09 | 欧进萍 | Optical fiber grating intelligent dragline |
| CN1779067A (en) * | 2004-11-17 | 2006-05-31 | 欧进萍 | Intelligent rope with grating and fibre-optical fibre and enhanced resin rib |
| CN101539469A (en) * | 2009-04-20 | 2009-09-23 | 重庆大学 | Intelligent cable capable of self-sensing cable force based on optical fiber strain sensing and measuring method thereof |
| CN104062050A (en) * | 2014-06-30 | 2014-09-24 | 中国一冶集团有限公司 | Steel strand used for prestressed concrete, binding method and binding device of optical fiber and steel strand |
| CA2908320A1 (en) * | 2013-05-02 | 2014-11-06 | Halliburton Energy Services, Inc. | High data-rate telemetry pulse detection with a sagnac interferometer |
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| US9019508B2 (en) * | 2009-05-21 | 2015-04-28 | David Blacklaw | Fiber optic gyroscope arrangements and methods |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847038A (en) * | 2019-12-22 | 2020-02-28 | 智性纤维复合加固南通有限公司 | Self-sensing parallel steel wire inhaul cable and manufacturing method thereof |
| CN110939062A (en) * | 2019-12-22 | 2020-03-31 | 智性纤维复合加固南通有限公司 | Self-sensing extrusion inhaul cable and manufacturing method thereof |
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Application publication date: 20170208 |