CN205262413U - Coupling fiber grating's wide range intelligence carbon fiber plate - Google Patents
Coupling fiber grating's wide range intelligence carbon fiber plate Download PDFInfo
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- CN205262413U CN205262413U CN201521088644.7U CN201521088644U CN205262413U CN 205262413 U CN205262413 U CN 205262413U CN 201521088644 U CN201521088644 U CN 201521088644U CN 205262413 U CN205262413 U CN 205262413U
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- carbon fiber
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- optical fiber
- fiber board
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Abstract
The utility model provides a coupling fiber grating's wide range intelligence carbon fiber plate is provided with at least one recess on it, placed the optical fiber cable in the recess and be used for covering the optical link protection layer of optical fiber cable, be carved with a plurality of grating and temperature gratings of meeting an emergency on the optical fiber cable. The current stress and strain monitoring problem of carbon fiber plate in the use can be solved in this application.
Description
Technical field
The application belongs to monitoring technical field, specifically, relates to a kind of wide range of coupled fiber gratingIntelligence carbon fiber board.
Background technology
Building structure in its military service phase owing to being subject to the various effects such as environmental attack, load and material agingCoupling, inevitably make structure generation damage and accumulate, make its opposing natural calamity energyPower decline, use function reduce, and even cause catastrophic effect, therefore the peace of structure under extreme caseFull property analysis and monitoring means are very important.
Intensity is high, lightweight because having for pre-stressed carbon fiber plate, good endurance, be easy to the advantages such as constructionBe widely used in the every field engineerings such as high building structure, bridge structure, underground structure, ocean structureMaintenance and reinforcement in, the stress deformation state monitoring that it is reinforced in use procedure has very great meaningJustice. Fiber Bragg Grating technology is carried out the minor variations of perception external physical quantity by grid reflection wavelength and movement,Measure linear degree of fitting is high, good stability. Fiber grating can to the ess-strain of structure carry out high-precision,Absolute, quasi-distributed digital measurement also have that anti-electromagnetic interference capability is strong, high temperature resistant, sensing simultaneouslyThe feature that body is long-pending little, wiring is simple, can realize data long-distance transmissions, is suitable for high-strength carbon fibreThe monitoring of the stress deformation of plate.
Fiber optic materials is glass, more crisp, and when use, the elongation strain being subject to can not exceed 5000 micro-answeringBecome, otherwise easily fracture, therefore the range of fiber grating is less. And carbon fiber board uses when maintenance and reinforcementTime strain ratio higher, the stressed strain value of general carbon fiber board approaches 6000 microstrains, pre-stressed carbon fiberPlate secular strain value can exceed 9000 microstrains. Meanwhile, affected by installation technics, fiber grating mayCannot be fully bonding with member, the dependent variable detecting and actual strain are misfitted to another executing in complexityIf improper to optical fiber grating protecting in work process, possibly cannot ensure that the service life of fiber grating is with fullThe object of foot long term monitoring.
Utility model content
In view of this, technical problems to be solved in this application be existing carbon fiber board in useEss-strain monitoring problem.
In order to solve the problems of the technologies described above, the application provides a kind of wide range intelligence carbon of coupled fiber gratingFiberboard, is provided with at least one groove on it, in described groove, be placed with optical fiber cable and for coverThe fiber optic protection layer of described optical fiber cable, is carved with multiple strain gratings and temperature grating on described optical fiber cable.
Further, described groove cross section is circular arc, and described circular arc radius is more than or equal to 0.1 milliRice, and be less than or equal to 0.5 millimeter.
Further, the center of circle line parallel of described groove is in the wide range intelligence carbon of described coupled fiber gratingThe center line of fiberboard.
Further, described optical fiber cable and described optical fiber cable protective layer are filled full described groove.
Further, described groove number is 1 to 4.
Further, the wide range of described coupled fiber grating intelligence carbon fiber board is reinforcement type carbon fiberPlate.
Compared with prior art, the application can obtain and comprise following technique effect:
(1) loss of the area of section of carbon fiber board is very little, even if the diameter of groove is 0.5mm, and carbon fibreThe space wastage of dimension plate is also less than 0.42%, negligible to the performance impact of carbon fiber board entirety.
(2) grating direct-coupling is in carbon fiber board inside, and its structure bond degree is higher than existing technique, andAnd the distortion of carbon fiber board and other structural member is consistent, make strain that grating is surveyed and other structural memberActual strain match.
(3) grating is positioned at carbon fiber board inside, substantially unaffected under complicated construction environment, avoidsDue to the adverse effect of construction factor to grating, meet long term monitoring the service life that has ensured gratingObject.
(4) many group grooves can be set, many group gratings are worked simultaneously, can carry out multinomial Data Comparison, veryAccuracy and the convincingness of monitoring result are provided in large degree.
(5) in the present invention, same group of optical fiber can be carved with multiple strain gratings, to measure carbon fiber board verticallyTemperature grating is carved with in the strain at direction diverse location place simultaneously, to use temperature strain Compensation Method temperatureDegree changes the impact on grating strain transducer measurement result.
Certainly, arbitrary product of enforcement the application must not necessarily need to reach above-described all skills simultaneouslyArt effect.
Brief description of the drawings
Accompanying drawing described herein is used to provide further understanding of the present application, forms of the applicationPoint, the application's schematic description and description is used for explaining the application, does not form the application'sImproper restriction. In the accompanying drawings:
Fig. 1 is that the cross section of the wide range intelligence carbon fiber board of the coupled fiber grating of the embodiment of the present application showsIntention;
Fig. 2 is that another of wide range intelligence carbon fiber board of the coupled fiber grating of the embodiment of the present application is transversalFace schematic diagram;
Fig. 3 is the axial cross section of the wide range intelligence carbon fiber board of the coupled fiber grating of the embodiment of the present applicationSchematic diagram.
Detailed description of the invention
Below cooperation drawings and Examples are described in detail to the application's embodiment, by this to the applicationThe implementation procedure how application technology means solve technical problem and reach technology effect can fully understand alsoImplement according to this.
As shown in Figure 1 to Figure 3, the wide range of the coupled fiber grating of the embodiment of the present application intelligence carbon fiberPlate (hereinafter to be referred as " carbon fiber board "), is provided with at least one groove 100, in described groove 100Be placed with optical fiber cable 200 and for covering the fiber optic protection layer 500 of described optical fiber cable 200, described lightOn fine line 200, be carved with multiple gratings 300. The placement direction of grating 300 and carbon fiber board axial direction oneCause. Grating 300 can be strain grating or temperature grating, can be also to become grating or temperature gratingCombination.
In the present embodiment, the cross section of described groove 100 is circular arc, described circular arc radius be greater than orEqual 0.1 millimeter, and be less than or equal to 0.5 millimeter. The center of circle line parallel of described groove 100 is in described carbonThe center line of fiberboard, in other words, groove 100 is to arrange along the surface of carbon fiber board. Optical fiber cable200 and described optical fiber cable protective layer 500 fill full described groove 100. Described groove 100 numbers are 1To 4, can be opened in the same side of carbon fiber board, also can be opened in not homonymy, the application is to thisBe not construed as limiting. The carbon fiber board of the present embodiment is reinforcement type carbon fiber board, and its size or specification can basesActual needs cutting.
The embodiment of the present application, also provides a kind of system of wide range intelligence carbon fiber board of coupled fiber gratingMake method, specifically comprise the steps:
Step 1: offer groove 100 on carbon fiber board;
Step 2: described carbon fiber board is stretched, and tensile stress is between 0～1860MPa;
Step 3: smear optical fiber cable adhesive in described groove 100, and will be carved with multiple gratings 300Optical fiber cable 200 stick in described groove 100;
Step 4: the fiber optic protection layer that is used for covering described optical fiber cable 200 in the interior filling of described groove 100500。
The application, by stretching with fluted 100 carbon fiber board, makes it have certain elongationAmount. Then in groove 100, smear optical fiber cable adhesive, place optical fiber cable 200 along groove afterwards. PeaceAfter installing, keep carbon fiber board extended state a period of time, until optical fiber cable adhesive works, soThe carbon fiber board that rear release stretches. Owing to being carved with the optical fiber cable 200 character fragilities of multiple gratings 300, be subject toElongation strain to limit tensile strain during than the work of carbon fiber board is little, has limited the range of grating 300,By prestretching carbon fiber board, then coupling is carved with the method for the optical fiber cable 200 of a grating 300, control carbon fibreDimension plate stretching amount is to reach the object that increases grating 300 ranges.
Carbon fiber board in the application and preparation method thereof has following technique effect:
(1) loss of the area of section of carbon fiber board is very little, even if the diameter of groove 100 is 0.5mm,The space wastage of carbon fiber board, also less than 0.42%, can be ignored not the performance impact of carbon fiber board entiretyMeter.
(2) grating 300 direct-couplings are in carbon fiber board inside, and its structure bond degree is higher than existing technique,And the distortion of carbon fiber board and other structural member is consistent, make grating 300 strain of surveying and otherThe actual strain of structural member matches.
(3) grating 300 is positioned at carbon fiber board inside, substantially unaffected under complicated construction environment,Avoid due to the adverse effect of construction factor to grating 300, ensured that the service life of grating 300 is fullThe object of foot long term monitoring.
(4) many group grooves 100 can be set, many group gratings 300 are worked simultaneously, can carry out multinomial dataContrast, accuracy and the convincingness of monitoring result is provided to a great extent.
(5) in the present invention, same group of optical fiber can be carved with multiple strain gratings, to measure carbon fiber board verticallyTemperature grating is carved with in the strain at direction diverse location place simultaneously, to use temperature strain Compensation Method temperatureDegree changes the impact on grating strain transducer measurement result.
Above-mentioned explanation illustrates and has described some preferred embodiments of the application, but as previously mentioned, should manageSeparate the application and be not limited to disclosed form herein, should not regard the eliminating to other embodiment as,And can be used for various other combinations, amendment and environment, and can be in invention contemplated scope described herein,Technology or knowledge by above-mentioned instruction or association area are changed. Change and those skilled in the art carry outThe spirit and scope moving and variation does not depart from the application, all should be in the protection of the application's claimsIn scope.
Claims (6)
1. the wide range of a coupled fiber grating intelligence carbon fiber board, is characterized in that, on it, is provided withAt least one groove, is placed with optical fiber cable and protects for the optical fiber that covers described optical fiber cable in described grooveSheath, is carved with multiple strain gratings and temperature grating on described optical fiber cable.
2. the wide range of coupled fiber grating according to claim 1 intelligence carbon fiber board, its featureBe, described groove cross section is circular arc, and described circular arc radius is more than or equal to 0.1 millimeter, and littleIn or equal 0.5 millimeter.
3. the wide range of coupled fiber grating according to claim 2 intelligence carbon fiber board, its featureBe, the center of circle line parallel of described groove is in the wide range intelligence carbon fiber board of described coupled fiber gratingCenter line.
4. the wide range of coupled fiber grating according to claim 1 intelligence carbon fiber board, its featureBe, described optical fiber cable and described optical fiber cable protective layer are filled full described groove.
5. the wide range of coupled fiber grating according to claim 1 intelligence carbon fiber board, its featureBe, described groove number is 1 to 4.
6. according to the wide range intelligence carbon fiber of the coupled fiber grating described in claim 1-5 any onePlate, is characterized in that, the wide range intelligence carbon fiber board of described coupled fiber grating is reinforcement type carbon fibreDimension plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521088644.7U CN205262413U (en) | 2015-12-23 | 2015-12-23 | Coupling fiber grating's wide range intelligence carbon fiber plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521088644.7U CN205262413U (en) | 2015-12-23 | 2015-12-23 | Coupling fiber grating's wide range intelligence carbon fiber plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205262413U true CN205262413U (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521088644.7U Expired - Fee Related CN205262413U (en) | 2015-12-23 | 2015-12-23 | Coupling fiber grating's wide range intelligence carbon fiber plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205262413U (en) |
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2015
- 2015-12-23 CN CN201521088644.7U patent/CN205262413U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| 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: 20160525 Termination date: 20191223 |