CN204039315U - A kind of sensing adhesive tape with high-temp strain measuring ability - Google Patents
A kind of sensing adhesive tape with high-temp strain measuring ability Download PDFInfo
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- CN204039315U CN204039315U CN201420234104.4U CN201420234104U CN204039315U CN 204039315 U CN204039315 U CN 204039315U CN 201420234104 U CN201420234104 U CN 201420234104U CN 204039315 U CN204039315 U CN 204039315U
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- adhesive tape
- measuring ability
- strain measuring
- high temperature
- sensing
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Abstract
The invention belongs to hot environment strain detecting field, be specifically related to a kind of sensing adhesive tape with high-temp strain measuring ability.Comprise the adhesive band base utilizing import glasscloth and Teflon resin formation; polyimide high temperature-resistant fiber grating is embedded in Teflon resin; the glue-line of adhesive tape is epoxy-polyimide glue; glue-line covers layer protecting film outward; zone of transition has a high temperature protection cover, and rear end is high temperature resistant optical cable and optical fiber match head.Present invention utilizes the structure that High temperature-resistanadhesive adhesive tape combines with high-temperature resistant optical fiber grating, make a kind of sensing adhesive tape with high-temp strain measuring ability, by the corresponding layout type of fiber grating, one dimension or Two-dimensional strain measuring ability can be realized, this sensing adhesive tape is easy to use, can fit with various high temperature member surfaces full flexible, inflammable and explosive environment can also be used for simultaneously, realize detection in real time, nondestructive testing, electromagnetism interference, distributed and quasi-distributed measurement.
Description
Technical field
The invention belongs to hot environment strain detecting field, be specifically related to a kind of sensing adhesive tape with high-temp strain measuring ability.
Background technology
In modern society, a lot of place all needs to utilize strain transducer to go to measure material structure surface strains, thus real-time examination and controlling is carried out to material structure, prevention material structure security incident, such as: the leakage of high temperature pressure vessel and pipe explosion accident, these accidents are because wall of container high temperature or fatigue failure cause, its external effect is the strain variation of vessel surface, this strain is non-linear process, if can provide high temperature pressure vessel real-time strain monitoring data, the generation of leakage and pipe explosion accident just effectively can be avoided.
At present, strain monitoring normally utilizes resistance strain gage to realize, and it is widely used in the strain-gauging of engineering structure to make the advantage relatively simple, cheap, numerous in variety, using method is simple, measurement performance is stable.But, this electric-type sensor also also exists obvious weak point in strain-gauging field, such as, when the structure of carrying out inflammable and explosive occasion detects in real time, this kind of electrical sensor may produce electrical spark thus cause blast accident, limits its application under this type of occasion; Traditional resistor strain-ga(u)ge transducer is also subject to electromagnetic interference and causes measuring result out of true, and is unfavorable for the realization of distributed measurement; In addition, related circuit non-refractory also limit the application of electrical sensor.
The laminating type of tradition strain transducer and tested component, mainly welded type is fixed with punching, these two kinds of laminating types easily cause certain damage to tested component, not only can affect the work-ing life of tested component, also do not meet the requirement of on-plane surface occasion to sensor flexible installing simultaneously.
Therefore, in order to avoid the problems referred to above, the sensing arrangement that the present invention will adopt High temperature-resistanadhesive adhesive tape and fire resistant polyimide fiber grating to combine, design one can direct and tested high temperature member surface be pasted, while with the sensing adhesive tape of high-temp strain measuring ability.High temperature-resistanadhesive adhesive tape is generally made up of base material and glue two portions, and it has the feature of high temperature resistant, corrosion-resistant, wear-resisting, moisture-resistant and high insulation, is widely used in the industries such as wrapping machine, weaving, food, wood working, high temperature circuit; Fiber grating is traditional strain sensing monitoring devices, under effects of strain to be measured, the characteristic wavelength of fiber grating can change, the size of tested strain is obtained by detecting this wavelength variable quantity, polyimide fiber grating is applicable to the strain sensing monitoring under hot environment, fire resistant polyimide fiber grating has: (1) electromagnetism interference, and measuring result is accurate; (2) may be used on inflammable and explosive environment; (3) level of integrated system is high; (4) advantage realizing distributed and quasi-distributed monitoring is convenient to.
The structure that the present invention utilizes High temperature-resistanadhesive adhesive tape to combine with high-temperature resistant optical fiber grating, make a kind of sensing adhesive tape with high-temp strain measuring ability, this sensing adhesive tape is easy to use, can fit with various high temperature member surfaces full flexible, inflammable and explosive environment can also be used for simultaneously, realize detection in real time, nondestructive testing, electromagnetism interference, distributed and quasi-distributed measurement.
summary of the invention
The object of the invention is that solving traditional strain transducer is subject to electromagnetic interference, the problem of inflammable and explosive environment can not be used for, avoid traditional strain transducer and component to be measured when fitting, by weld and fixed form of punching to cause the problem of damage to tested component simultaneously.Therefore, the present invention will provide a kind of sensing adhesive tape with high-temp strain measuring ability, this sensing adhesive tape can be fitted with the high temperature member surface full flexible of arbitrary shape, do not need to weld tested high temperature member or punch, convenient to use, achieve that tested component is harmless to be detected in real time, can long term operation the hot environment of 250 DEG C, and fiber grating can realize one dimension or Two-dimensional strain measuring ability by corresponding alignment placement mode.
For achieving the above object, the present invention adopts following technical scheme:
This adhesive tape comprises import glasscloth, Teflon resin layer, polymeric coating fiber grating, adhesive layer and protective membrane; wherein import glasscloth and Teflon resin layer form adhesive band base; polymeric coating fiber grating is provided with in Teflon resin layer; adhesive layer is coated in substrate surface, adhesive layer surface coverage layer protecting film.Fabric reinforced Teflon fiberglass adhesive tape is compared pure Teflon adhesive tape and is had larger adhesion strength and tensile strength, also has that pure Teflon adhesive tape is high temperature resistant, a feature of the strong and resistance to chemical attack of good-extensibility, good springiness, good insulating, anti-electric shock power simultaneously.
The thickness of import glass fiber woven cloth is 100 μm, the thickness of Teflon resin layer is 300 μm, polymeric coating fiber grating can resistance to 250 DEG C of high temperature, the polyimide coating layer diameter of fiber grating is 155 μm, polyimide coating layer fiber grating and glass fiber woven cloth tight flexible adapting are fitted, simultaneously by one dimension or the two dimensional topology mode of high-temperature resistant optical fiber grating, realize high temperature member surface one dimension or Two-dimensional strain measuring ability; Fiber grating and woven cloth are covered completely by resin layer, and resin layer thickness and planeness are controlled by high temperature gummed tape production unit, and the base material total thickness finally formed is 400 μm.
What adhesive layer adopted is epoxy-polyimide glue, and adhesive layer thickness is 50 μm, with adhesive tape automatic double surface gluer, epoxy-polyimide glue is coated in substrate surface.
Sensing adhesive tape according to tested component practical situation, can carry out suitable Aspect Ratio convergent-divergent, produces material to save and adapts to tested component.
In order to ensure that optical fiber does not rupture in adhesive tape interface; the rectangle article tape of 10mm × 1mm is left in adhesive tape tail end optical fiber side; rectangle article tape is wrapped on optical fiber; form a cylindric adhesive tape protective layer; the optical fiber of interface and adhesive tape are linked together, strengthens interface fiber optic protection.
The zone of transition of adhesive tape and optical cable has added a high temperature protection cover; protective sleeve left end is flats; 1mm adhesive tape can be put into; right-hand member is the circle of diameter slightly larger than optical cable; the high temperature resistant silicone filler of protective sleeve left end and right-hand member gap; high temperature cable length is about 150-200cm, and optical cable end connects an optical fiber matched junction, is convenient to be connected with other optic fibre light paths.
The adhesive layer of adhesive tape, after drying process, in order to avoid external substance sticks on adhesive layer, affects the adhesivity of adhesive layer, and in adhesive layer surface coverage, one deck can remove protective membrane, when using sensing adhesive tape, can directly remove this protective membrane.
When using sensing adhesive tape, component surface first need carry out polished finish with the instrument such as sand paper, file, then dips acetone or dehydrated alcohol scouring polishing position, until cotton balls is pure white with cotton balls; Accurately be placed on paste position after sensing adhesive tape is carried out suitable prestretching, and pin adhesive tape 1-2 minute with the smooth thin slice of small pieces, then check that adhesive tape has that bubble-free, Yao are bent, the phenomenon such as to come unstuck, if affect strain-gauging, answers re-posted; In order to extend sensing belt work life, high temperature resistant silica gel or spraying non-blushing thinner can be coated at tape surface and surrounding after stickup completes, reaching function that is moistureproof, waterproof.
The present invention is that one can directly be pasted onto high temperature member surface, realize the sensing adhesive tape of high temperature member surface strains real-time detection function, the harmless flexible detection of tested component can be realized, and one dimension or Two-dimensional strain measuring ability can be realized by the different layout type of fiber grating.
Accompanying drawing explanation
Fig. 1 is a kind of sensing adhesive tape front view with high-temp strain measuring ability in patent of the present invention.
Fig. 2 is a kind of sensing adhesive tape left view with high-temp strain measuring ability in patent of the present invention.
Fig. 3 is a kind of sensing tape terminal article tape front view with high-temp strain measuring ability in patent of the present invention.
Fig. 4 is right view when a kind of sensing tape terminal article tape winding optical fiber with high-temp strain measuring ability forms adhesive tape protective layer in patent of the present invention.
Fig. 5 is a kind of sensing adhesive tape and optical cable zone of transition protective sleeve front view with high-temp strain measuring ability in patent of the present invention.
Embodiment
Below in conjunction with accompanying drawing 1 to 5 and embodiment, the present invention is described in further detail:
A kind of sensing adhesive tape right view with high-temp strain measuring ability as shown in Figure 2, comprise by thickness to be the import glasscloth (1) of 100 μm and thickness be adhesive band base that Teflon resin (2) (teflon resin) of 300 μm form, base material total thickness is 400 μm; Comprising in Teflon resin can the polymeric coating fiber grating (3) of resistance to 250 DEG C of high temperature for a long time, and what fiber grating adopted is standard size high-temperature resistant optical fiber grating, and namely cladding diameter is 125 μm of polyimide coating layers is 155 μm.
By one dimension or the two dimensional topology mode of high-temperature resistant optical fiber grating, high temperature member surface one dimension or Two-dimensional strain measuring ability can be realized; After grating layout completes, by Teflon resin (teflon resin) lotion applicator in woven cloth, high-temperature resistant optical fiber grating and woven cloth are completely covered, Teflon resin through drying process emulsion state will form the Teflon resin layer (2) that thickness is 300 μm, and the precise thickness of resin layer and planeness are controlled by high temperature gummed tape production unit.
After comprising the substrate forming of sensing unit, utilize adhesive tape automatic double surface gluer that epoxy-polyimide glue is coated in substrate surface, consider adhesive tape production technique and adhesive tape use properties, epoxy-polyimide glue (4) thickness of coating is 50 μm, and bondline thickness is controlled by tape coating machine.
Sensing adhesive tape according to tested component practical situation, can carry out suitable Aspect Ratio convergent-divergent, produces material to save and adapts to tested component.
In order to ensure that optical fiber does not rupture in adhesive tape interface, the rectangle article tape (9) of 10mm × 1mm is left in adhesive tape tail end optical fiber side, as shown in Figure 3; Rectangle article tape is wrapped on optical fiber, forms a cylindric adhesive tape protective layer (10), as shown in Figure 4, the optical fiber of interface and adhesive tape are linked together, strengthen interface fiber optic protection.
The additional high temperature resistant protective sleeve (6) of zone of transition of adhesive tape and optical cable; protective sleeve left end is flats; 1mm adhesive tape can be put into like this; protective sleeve right-hand member diameter is slightly larger than optic cable diameter; the high temperature resistant silicone filler in gap after protective sleeve left end blocks adhesive tape; right-hand member does same process; as shown in Figure 5; high temperature optical cable (7) length is about 150-200cm; optical cable end connects an optical fiber matched junction (8); as shown in Figure 1, be convenient to be connected with other optic fibre light paths.
The adhesive layer (4) of adhesive tape is after drying process; in order to avoid external substance sticks on adhesive layer; affect the adhesivity of adhesive layer; in adhesive layer surface coverage, one deck can remove protective membrane (5); as shown in Figure 2; when using sensing adhesive tape, can directly remove this protective membrane.
When using sensing adhesive tape, component surface first need carry out polished finish with the instrument such as sand paper, file, then dips acetone or dehydrated alcohol scouring polishing position, until cotton balls is pure white with cotton balls; Accurately paste position is placed on after sensing adhesive tape is carried out suitable prestretching, and pin adhesive tape 1-2 minute with the smooth thin slice of small pieces, then check that adhesive tape has that bubble-free, Yao are bent, the phenomenon such as to come unstuck, if affect strain-gauging, answer re-posted, and through one section of high-temperature time, glue-line will be solidificated in tested component surface; In order to extend sensing belt work life, high temperature resistant silica gel or spraying non-blushing thinner can be coated at tape surface and surrounding after stickup completes, reaching function that is moistureproof, waterproof.
Claims (5)
1. one kind has the sensing adhesive tape of high-temp strain measuring ability; its feature is: this adhesive tape comprises import glasscloth (1), Teflon resin layer (2), polymeric coating fiber grating (3), adhesive layer (4) and protective membrane (5); wherein import glasscloth and Teflon resin layer form adhesive band base; polymeric coating fiber grating is provided with in Teflon resin layer; adhesive layer is coated in substrate surface, adhesive layer surface coverage layer protecting film.
2. a kind of sensing adhesive tape with high-temp strain measuring ability according to claim 1, its feature is: the thickness of import glass fiber woven cloth (1) is 100 μm, the thickness of Teflon resin layer (2) is 300 μm, and polymeric coating fiber grating (3) can resistance to 250 DEG C of high temperature.
3. a kind of sensing adhesive tape with high-temp strain measuring ability according to claim 1, its feature is: what adhesive layer (4) adopted is epoxy-polyimide glue, and adhesive layer thickness is 50 μm.
4. a kind of sensing adhesive tape with high-temp strain measuring ability according to claim 1; its feature is: the zone of transition of adhesive tape and optical cable has added a high temperature protection cover (6); protective sleeve left end is flats, and right-hand member is the circle of diameter slightly larger than optical cable.
5. a kind of sensing adhesive tape with high-temp strain measuring ability according to claim 1, its feature is: polymeric coating fiber grating, by one dimension or two dimensional topology mode, can realize one dimension or Two-dimensional strain measuring ability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420234104.4U CN204039315U (en) | 2014-05-07 | 2014-05-07 | A kind of sensing adhesive tape with high-temp strain measuring ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420234104.4U CN204039315U (en) | 2014-05-07 | 2014-05-07 | A kind of sensing adhesive tape with high-temp strain measuring ability |
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| CN204039315U true CN204039315U (en) | 2014-12-24 |
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| CN201420234104.4U Expired - Fee Related CN204039315U (en) | 2014-05-07 | 2014-05-07 | A kind of sensing adhesive tape with high-temp strain measuring ability |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259184A (en) * | 2015-11-24 | 2016-01-20 | 大连大学 | Tunnel-vault distributed optical fiber monitoring device, construction technology thereof and monitoring method thereof |
| CN106546182A (en) * | 2016-11-03 | 2017-03-29 | 北京信息科技大学 | A kind of high-temperature resistant optical fiber grating strain transducer of incline structure |
-
2014
- 2014-05-07 CN CN201420234104.4U patent/CN204039315U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259184A (en) * | 2015-11-24 | 2016-01-20 | 大连大学 | Tunnel-vault distributed optical fiber monitoring device, construction technology thereof and monitoring method thereof |
| CN105259184B (en) * | 2015-11-24 | 2018-10-16 | 大连大学 | Tunnel vault distributed optical fiber sensing device and its construction technology and monitoring method |
| CN106546182A (en) * | 2016-11-03 | 2017-03-29 | 北京信息科技大学 | A kind of high-temperature resistant optical fiber grating strain transducer of incline structure |
| CN106546182B (en) * | 2016-11-03 | 2019-01-18 | 北京信息科技大学 | A kind of high-temperature resistant optical fiber grating strain transducer of incline structure |
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