CN206920664U - A kind of straining sensing optical cable - Google Patents
A kind of straining sensing optical cable Download PDFInfo
- Publication number
- CN206920664U CN206920664U CN201720228774.9U CN201720228774U CN206920664U CN 206920664 U CN206920664 U CN 206920664U CN 201720228774 U CN201720228774 U CN 201720228774U CN 206920664 U CN206920664 U CN 206920664U
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- China
- Prior art keywords
- sheath
- optical cable
- sensing optical
- tight
- straining sensing
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Abstract
The utility model provides a kind of straining sensing optical cable, including tight tube fiber and sheath；The tight tube fiber is fixed on the inside of the sheath；The tight set pipe of the tight tube fiber is identical with the material of the sheath.The beneficial effects of the utility model are：The tight set pipe of tight tube fiber is identical with the material of the sheath, and when extruding sheath, sheath can be with tight set pipe adhesion so that the structure of optical cable is compacted, unification degree is high.Meanwhile using the sheath section of flat, and the length value in sheath section is 3 to 5 times of width value so that the straining sensing optical cable can match the surface for being attached at circular pipe.
Description
Technical field
Optical communication field is the utility model is related to, particularly a kind of straining sensing optical cable.
Background technology
With the development of optical fiber sensing technology, the sensing optic cable demand for being capable of measuring strain change is increasing.
Sensing optic cable is believed by the use of the various characteristic variations of optical fiber optical signal in circuit as sensing mode, then solution light modulation
Number, analyze strain variation.Existing sensing optic cable can not accurately differentiate strain variation.
Utility model content
In order to solve above-mentioned existing technical problem, the utility model provides a kind of straining sensing optical cable, its tight tube fiber
Tight set pipe it is identical with the material of the sheath, when extruding sheath, sheath can be with tight set pipe adhesion so that the structure of optical cable is tight
Cause, unification degree height, strain variation can accurately be differentiated by the optical signal of the optical cable.
The utility model solves above-mentioned existing technical problem, there is provided a kind of straining sensing optical cable, including tight tube fiber and
Sheath；The tight tube fiber is fixed on the inside of the sheath；The tight set pipe of the tight tube fiber and the material phase of the sheath
Together.
The utility model further improves as described below.
The section of the sheath is in flat.
The length value in the sheath section is 3 to 5 times of width value.
The both ends profile of the flat is respectively a semi arch, is connected respectively by two parallel lines between the two halves circular arc of face
Connect.
The radius of two halves circular arc is identical.
The tight tube fiber and the semi arch concentrically line.
In the central region of the sheath, flat cavity is set.
The flat cavity is in fusiform.
The length of the flat cavity is the half of the sheath cross-sectional length.
Including aramid yarn, the aramid yarn is arranged in the flat cavity.
Compared to prior art, the beneficial effects of the utility model are：The tight set pipe of tight tube fiber and the material of the sheath
Matter is identical, and when extruding sheath, sheath can be with tight set pipe adhesion so that the structure of optical cable is compacted, unification degree is high, by the optical cable
Optical signal can accurately differentiate strain variation.Meanwhile using the sheath section of flat, and the length value in sheath section is width
3 to 5 times of value so that the straining sensing optical cable can match the surface for being attached at circular pipe.
Brief description of the drawings
Fig. 1 is the schematic cross-section of the utility model straining sensing optical cable.
The tight set pipe 111 of tight tube fiber 11
The flat cavity 121 of sheath 12
Aramid yarn 13
Embodiment
Explanation and embodiment further illustrate to the utility model below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of straining sensing optical cable, including tight tube fiber 11 and sheath 12, tight tube fiber 11 are fixed on shield
The inside of set 12, is protected by sheath 12；The tight set pipe 111 of tight tube fiber 11 is identical with the material of sheath 12.Its principle is,
The tight set pipe 111 of tight tube fiber 11 is identical with the material of sheath 12, and when extruding sheath 12, sheath 12 can be sent out with tight set pipe 111
Raw adhesion so that the structure of optical cable is compacted, unification degree is high.When optical cable by stress produce deformation, tight tube fiber 11 due to nothing left grow,
It can not be affected by temperature, it is only sensitive to strain variation.Then optical signal is gathered, is analyzed, i.e., can accurately differentiate strain
Change.
The section of the utility model sheath 12 is in flat, and the length value in the section of sheath 12 is 3 to 5 times of width value.Specifically
, the both ends profile of the flat is respectively a semi arch, is connected respectively by two parallel lines between the two halves circular arc of face, two
The radius of semi arch is identical, tight tube fiber 11 and semi arch concentrically line.Sheath 12 can use the low low smoke and zero halogen resistance of hardness
The material of sheath 12 is fired, tight set pipe 111 is also using the low material of low-smoke halogen-free flame-retardant sheath 12 of identical hardness, so as to being attached at pipeline
Circular surface provides advantage, suitable for the strain abnormality monitoring system of colliery, oil well, petroleum pipeline or natural gas line.
The utility model sets flat cavity 121 in the central region of sheath 12, and flat cavity 121 is in fusiform, flat
The length of cavity 121 is the half of the cross-sectional length of sheath 12, should so as to further improve on the attaching ability on tube circular surface
Flat cavity 121 can be formed by the mould straight forming of sheath 12.The utility model strain transducer includes aramid yarn 13, aramid fiber
Yarn 13 is arranged in flat cavity 121, can ensure that the tensile property of optical cable is excellent.
The tight set pipe 111 of tight tube fiber 11 is identical with the material of the sheath 12, and when extruding sheath 12, sheath 12 can be with
The adhesion of tight set pipe 111 so that the structure of optical cable is compacted, unification degree is high.Meanwhile using the section of sheath 12 of flat, and sheath 12
The length value in section is 3 to 5 times of width value so that the straining sensing optical cable can match the surface for being attached at circular pipe.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (9)
- A kind of 1. straining sensing optical cable, it is characterised in that：Including tight tube fiber and sheath；The tight tube fiber is fixed on the inside of the sheath；The tight set pipe of the tight tube fiber is identical with the material of the sheath；In the central region of the sheath, flat cavity is set.
- 2. straining sensing optical cable according to claim 1, it is characterised in that：The section of the sheath is in flat.
- 3. straining sensing optical cable according to claim 2, it is characterised in that：The length value in the sheath section is width value 3 to 5 times.
- 4. straining sensing optical cable according to claim 3, it is characterised in that：The both ends profile of the flat is respectively a semicircle Arc, connected respectively by two parallel lines between the two halves circular arc of face.
- 5. straining sensing optical cable according to claim 4, it is characterised in that：The radius of two halves circular arc is identical.
- 6. straining sensing optical cable according to claim 5, it is characterised in that：During the tight tube fiber and the semi arch are common Heart line.
- 7. straining sensing optical cable according to claim 6, it is characterised in that：The flat cavity is in fusiform.
- 8. straining sensing optical cable according to claim 7, it is characterised in that：The length of the flat cavity is the sheath The half of cross-sectional length.
- 9. straining sensing optical cable according to claim 8, it is characterised in that：Including aramid yarn, the aramid yarn is arranged in In the flat cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720228774.9U CN206920664U (en) | 2017-03-07 | 2017-03-07 | A kind of straining sensing optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720228774.9U CN206920664U (en) | 2017-03-07 | 2017-03-07 | A kind of straining sensing optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206920664U true CN206920664U (en) | 2018-01-23 |
Family
ID=61309647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720228774.9U Active CN206920664U (en) | 2017-03-07 | 2017-03-07 | A kind of straining sensing optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206920664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457952A (en) * | 2019-01-18 | 2020-07-28 | 中国石油天然气股份有限公司 | Signal enhancement device and method of use thereof |
-
2017
- 2017-03-07 CN CN201720228774.9U patent/CN206920664U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457952A (en) * | 2019-01-18 | 2020-07-28 | 中国石油天然气股份有限公司 | Signal enhancement device and method of use thereof |
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