CN105423938A - Coupling fiber grating wide-range intelligent carbon fiber plate and manufacturing method thereof - Google Patents
Coupling fiber grating wide-range intelligent carbon fiber plate and manufacturing method thereof Download PDFInfo
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- CN105423938A CN105423938A CN201510980132.XA CN201510980132A CN105423938A CN 105423938 A CN105423938 A CN 105423938A CN 201510980132 A CN201510980132 A CN 201510980132A CN 105423938 A CN105423938 A CN 105423938A
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- carbon fiber
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/165—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by means of a grating deformed by the object
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
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Abstract
The application provides a coupling fiber grating wide-range intelligent carbon fiber plate which is provided with at least one groove. The grooves are internally provided with optical fiber lines and optical fiber protective layers which are used for covering the optical fiber lines. Multiple strain gratings and temperature gratings are carved on the optical fiber lines. The application also provides a manufacturing method of the coupling fiber grating wide-range intelligent carbon fiber plate. The stress and strain monitoring problem in the use process of the carbon fiber plate can be solved by the coupling fiber grating wide-range intelligent carbon fiber plate and the manufacturing method thereof.
Description
Technical field
The application belongs to monitoring technical field, specifically, relates to its method for making of wide range intelligence carbon fiber board of a kind of coupled fiber grating.
Background technology
Building structure in its military service phase owing to being subject to the coupling of the various effects such as environmental attack, load and material aging, inevitably make structure produce damage and accumulate, make the ability decline of its opposing disaster, using function reduction, even cause catastrophic effect in extreme circumstances, therefore the safety analysis of structure and monitoring means very important.
Intensity is high, lightweight because having for pre-stressed carbon fiber plate, good endurance, be easy to the advantages such as construction and be widely used in the maintenance and reinforcement of the every field engineerings such as high building structure, bridge structure, underground structure, ocean structure, has very great meaning to stress deformation state monitoring that it is reinforced in use procedure.Fiber Bragg Grating technology is by grid reflects wavelength and the subtle change moving perception external physical quantity, and measure linear degree of fitting is high, good stability.Fiber grating can carry out high-precision, absolute, quasi-distributed digital measurement to the ess-strain of structure, also there is the feature that anti-electromagnetic interference capability is strong, high temperature resistant, sensor bulk is little, wiring is simple, can realize data long-distance transmissions simultaneously, be suitable for the monitoring of the stress deformation of high-strength carbon fibre plate.
Fiber optic materials is glass, more crisp, and during use, the tensile strain be subject to more than 5000 microstrains, otherwise easily can not be ruptured, and therefore the range of fiber grating is less.And strain ratio is higher when during maintenance and reinforcement, carbon fiber board uses, the stressed strain value of general carbon fiber board is close to 6000 microstrains, and pre-stressed carbon fiber plate secular strain value then can more than 9000 microstrains.Simultaneously; affect by installation technics, fiber grating cannot fully may bond with component, misfits the dependent variable detected and actual strain; if another improper to optical fiber grating protecting in the work progress of complexity, possibly cannot ensure that the serviceable life of fiber grating is to meet the object of long term monitoring.
Summary of the invention
In view of this, technical problems to be solved in this application are existing carbon fiber board ess-strain monitoring problems in use.
In order to solve the problems of the technologies described above; the application provides a kind of wide range intelligence carbon fiber board of coupled fiber grating; be provided with at least one groove; being placed with optical fiber cable and the fiber optic protection layer for covering described optical fiber cable in described groove, described optical fiber cable being carved with multiple strain grating and temperature grating.
Further, described channel section is circular arc, and described circular arc radius is more than or equal to 0.1 millimeter, and is less than or equal to 0.5 millimeter.
Further, the center of circle line parallel of described groove is in the center line of the wide range intelligence carbon fiber board of described coupled fiber grating.
Further, full described groove filled by described optical fiber cable and described optical fiber cable protective seam.
Further, described groove number is 1 to 4.
Further, the wide range intelligence carbon fiber board of described coupled fiber grating is reinforcement type carbon fiber board.
The application also provides a kind of method for making of wide range intelligence carbon fiber board of coupled fiber grating, comprises the steps:
Carbon fiber board offers groove;
Stretch to described carbon fiber board, drawing stress is between 0 ~ 1860MPa;
In described groove, smear optical fiber cable adhesive, and the optical fiber cable being carved with multiple strain grating and temperature grating is pasted onto in described groove;
The fiber optic protection layer for covering described optical fiber cable is filled in described groove.
Further, described channel section is circular arc, and described circular arc radius is more than or equal to 0.1 millimeter, and is less than or equal to 0.5 millimeter.
Further, the center of circle line parallel of described groove is in the center line of the wide range intelligence carbon fiber board of described coupled fiber grating.
Further, described groove number is 1 to 4.
Compared with prior art, the application can obtain and comprise following technique effect:
(1) the area of section loss of carbon fiber board is very little, even if the diameter of groove is 0.5mm, the space wastage of carbon fiber board is also less than 0.42%, negligible to the performance impact of carbon fiber board entirety.
(2) grating direct-coupling is inner at carbon fiber board, and its structure bond degree is higher than existing technique, and the distortion of carbon fiber board and other structural member is consistent, and grating institute is surveyed strain and the actual strain of other structural member matches.
(3) grating is positioned at carbon fiber board inside, substantially unaffected under the construction environment of complexity, avoids because construction factor is to the adverse effect of grating, ensure that the serviceable life of grating meets the object of long term monitoring.
(4) can arrange and organize groove more, many group gratings be worked simultaneously, can multinomial Data Comparison be carried out, provide accuracy and the cogency of monitoring result to a great extent.
(5) in the present invention, same group of optical fiber can be carved with multiple strain grating, to measure the strain at carbon fiber board in axial direction diverse location place, be carved with temperature grating, with serviceability temperature strain compensation method compensates on the impact of grating strain transducer measurement result simultaneously.
Certainly, the arbitrary product implementing the application must not necessarily need to reach above-described all technique effects simultaneously.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present application, and form a application's part, the schematic description and description of the application, for explaining the application, does not form the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the cross sectional representation of the wide range intelligence carbon fiber board of the coupled fiber grating of the embodiment of the present application;
Fig. 2 is another cross sectional representation of the wide range intelligence carbon fiber board of the coupled fiber grating of the embodiment of the present application;
Fig. 3 is the axial cross section schematic diagram of the wide range intelligence carbon fiber board of the coupled fiber grating of the embodiment of the present application.
Embodiment
Drawings and Examples will be coordinated below to describe the embodiment of the application in detail, by this to the application how application technology means solve technical matters and the implementation procedure reaching technology effect can fully understand and implement according to this.
As shown in Figure 1 to Figure 3; wide range intelligence carbon fiber board (hereinafter referred to as " carbon fiber board ") of the coupled fiber grating of the embodiment of the present application; be provided with at least one groove 100; be placed with optical fiber cable 200 and the fiber optic protection layer 500 for covering described optical fiber cable 200 in described groove 100, described optical fiber cable 200 is carved with multiple grating 300.The placement direction of grating 300 is consistent with carbon fiber board axial direction.Grating 300 can be strain grating or temperature grating, also can be the combination becoming grating or temperature grating.
In the present embodiment, the cross section of described groove 100 is circular arc, and described circular arc radius is more than or equal to 0.1 millimeter, and is less than or equal to 0.5 millimeter.The center of circle line parallel of described groove 100 is in the center line of described carbon fiber board, and in other words, groove 100 arranges along the surface of carbon fiber board.Full described groove 100 filled by optical fiber cable 200 and described optical fiber cable protective seam 500.Described groove 100 number is 1 to 4, and can be opened in the same side of carbon fiber board, also can be opened in not homonymy, the application is not construed as limiting this.The carbon fiber board of the present embodiment is reinforcement type carbon fiber board, and its size or specification can be cut according to actual needs.
The embodiment of the present application, additionally provides a kind of method for making of wide range intelligence carbon fiber board of coupled fiber grating, specifically comprises the steps:
Step 1: offer groove 100 on carbon fiber board;
Step 2: stretch to described carbon fiber board, drawing stress is between 0 ~ 1860MPa;
Step 3: smear optical fiber cable adhesive in described groove 100, and the optical fiber cable 200 being carved with multiple grating 300 is pasted onto in described groove 100;
Step 4: fill the fiber optic protection layer 500 for covering described optical fiber cable 200 in described groove 100.
The application, by stretching to the carbon fiber board of band fluted 100, makes it have certain elongation.Then in groove 100, smear optical fiber cable adhesive, place optical fiber cable 200 along groove afterwards.After installing, keep carbon fiber board extended state a period of time, until optical fiber cable adhesive works, then discharge the carbon fiber board of stretching.Because optical fiber cable 200 character being carved with multiple grating 300 is fragile, tensile strain when being subject to the work of limit tensile strain than carbon fiber board is little, limit the range of grating 300, by prestretching carbon fiber board, the method of the optical fiber cable 200 of a grating 300 is carved with in coupling again, controls carbon fiber board amount of tension to reach the object increasing grating 300 range.
Carbon fiber board in the application and preparation method thereof has following technique effect:
(1) the area of section loss of carbon fiber board is very little, even if the diameter of groove 100 is 0.5mm, the space wastage of carbon fiber board is also less than 0.42%, negligible to the performance impact of carbon fiber board entirety.
(2) grating 300 direct-coupling is inner at carbon fiber board, 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 surveys and to strain and the actual strain of other structural member matches.
(3) grating 300 is positioned at carbon fiber board inside, substantially unaffected under the construction environment of complexity, avoids because construction factor is to the adverse effect of grating 300, ensure that the serviceable life of grating 300 meets the object of long term monitoring.
(4) many group grooves 100 can be set, many group gratings 300 be worked simultaneously, can multinomial Data Comparison be carried out, provide accuracy and the cogency of monitoring result to a great extent.
(5) in the present invention, same group of optical fiber can be carved with multiple strain grating, to measure the strain at carbon fiber board in axial direction diverse location place, be carved with temperature grating, with serviceability temperature strain compensation method compensates on the impact of grating strain transducer measurement result simultaneously.
Above-mentioned explanation illustrate and describes some preferred embodiments of the application, but as previously mentioned, be to be understood that the application is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in invention contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the application, then all should in the protection domain of the application's claims.
Claims (10)
1. the wide range intelligence carbon fiber board of a coupled fiber grating; it is characterized in that; be provided with at least one groove, be placed with optical fiber cable and the fiber optic protection layer for covering described optical fiber cable in described groove, described optical fiber cable be carved with multiple strain grating and temperature grating.
2. the wide range intelligence carbon fiber board of coupled fiber grating according to claim 1, it is characterized in that, described channel section is circular arc, and described circular arc radius is more than or equal to 0.1 millimeter, and is less than or equal to 0.5 millimeter.
3. the wide range intelligence carbon fiber board of coupled fiber grating according to claim 2, is characterized in that, the center of circle line parallel of described groove is in the center line of the wide range intelligence carbon fiber board of described coupled fiber grating.
4. the wide range intelligence carbon fiber board of coupled fiber grating according to claim 1, it is characterized in that, full described groove filled by described optical fiber cable and described optical fiber cable protective seam.
5. the wide range intelligence carbon fiber board of coupled fiber grating according to claim 1, it is characterized in that, described groove number is 1 to 4.
6. according to the wide range intelligence carbon fiber board of the coupled fiber grating described in any one of claim 1-5, it is characterized in that, the wide range intelligence carbon fiber board of described coupled fiber grating is reinforcement type carbon fiber board.
7. a method for making for the wide range intelligence carbon fiber board of coupled fiber grating, is characterized in that, comprise the steps:
Carbon fiber board offers groove;
Stretch to described carbon fiber board, drawing stress is between 0 ~ 1860MPa;
In described groove, smear optical fiber cable adhesive, and the optical fiber cable being carved with multiple strain grating and temperature grating is pasted onto in described groove;
The fiber optic protection layer for covering described optical fiber cable is filled in described groove.
8. method for making according to claim 7, is characterized in that, described channel section is circular arc, and described circular arc radius is more than or equal to 0.1 millimeter, and is less than or equal to 0.5 millimeter.
9. method for making according to claim 8, is characterized in that, the center of circle line parallel of described groove is in the center line of the wide range intelligence carbon fiber board of described coupled fiber grating.
10. method for making according to claim 9, is characterized in that, described groove number is 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510980132.XA CN105423938A (en) | 2015-12-23 | 2015-12-23 | Coupling fiber grating wide-range intelligent carbon fiber plate and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510980132.XA CN105423938A (en) | 2015-12-23 | 2015-12-23 | Coupling fiber grating wide-range intelligent carbon fiber plate and manufacturing method thereof |
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| CN105423938A true CN105423938A (en) | 2016-03-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238387A (en) * | 2019-10-24 | 2020-06-05 | 天津中德应用技术大学 | Blue light detection and analysis process for carbon fiber plate |
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| CN102419349A (en) * | 2011-08-19 | 2012-04-18 | 北京航空航天大学 | Packaging method of acoustic emission sensor of fiber Bragg raster |
| CN104101307A (en) * | 2014-07-24 | 2014-10-15 | 河海大学 | Fibre bragg grating reinforcement strain gauge capable of measuring temperature and strain simultaneously |
| CN104764412A (en) * | 2014-01-06 | 2015-07-08 | 中国计量学院 | Two-dimensional strain flexible high-temperature fiber grating sensor based on braiding structure |
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2015
- 2015-12-23 CN CN201510980132.XA patent/CN105423938A/en active Pending
Patent Citations (4)
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| CN1733645A (en) * | 2005-07-01 | 2006-02-15 | 哈尔滨工业大学 | Grating optical fibre possessed carbon fiber composite material and its preparation method |
| CN102419349A (en) * | 2011-08-19 | 2012-04-18 | 北京航空航天大学 | Packaging method of acoustic emission sensor of fiber Bragg raster |
| CN104764412A (en) * | 2014-01-06 | 2015-07-08 | 中国计量学院 | Two-dimensional strain flexible high-temperature fiber grating sensor based on braiding structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238387A (en) * | 2019-10-24 | 2020-06-05 | 天津中德应用技术大学 | Blue light detection and analysis process for carbon fiber plate |
| CN111238387B (en) * | 2019-10-24 | 2024-05-07 | 天津中德应用技术大学 | Carbon fiber plate blue light detection and analysis process |
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Application publication date: 20160323 |