CN201348666Y - Distributed Temperature Sensing Optical Cable - Google Patents
Distributed Temperature Sensing Optical Cable Download PDFInfo
- Publication number
- CN201348666Y CN201348666Y CNU2008201992593U CN200820199259U CN201348666Y CN 201348666 Y CN201348666 Y CN 201348666Y CN U2008201992593 U CNU2008201992593 U CN U2008201992593U CN 200820199259 U CN200820199259 U CN 200820199259U CN 201348666 Y CN201348666 Y CN 201348666Y
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- coated
- temperature sensing
- distributed temperature
- optical cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 title abstract description 13
- 239000013307 optical fiber Substances 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 19
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 9
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000003063 flame retardant Substances 0.000 claims abstract description 5
- 239000000779 smoke Substances 0.000 claims abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000001069 Raman spectroscopy Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
The utility model discloses a distributed temperature sensing optical cable, which comprises an optical fiber, wherein a tight sleeve is coated outside the optical fiber, a metal hose is coated outside the tight sleeve, an aramid fiber reinforced layer is coated outside the metal hose, a metal braid is coated outside the aramid fiber reinforced layer, and a low-smoke halogen-free flame-retardant sheath is coated outside the metal braid; the utility model discloses can be applied to distributed temperature monitoring system, this optical cable both had been as temperature sensor, was the passageway of data information transmission again.
Description
Technical field
The utility model relates to a kind of distributed temperature sensing optic cable.
Background technology
Along with the growth of information and popularizing of network, as the effective means of high capacity, long Distance Transmission, optical cable has obtained a large amount of application, and traditional optical cable has only function of transmission information.
Summary of the invention
The utility model purpose is: a kind of distributed temperature sensing optic cable is provided, is applied to the distributed temperature monitoring system, this optical cable is both as temperature sensor, again as the passage of data information transfer.
The technical solution of the utility model is: a kind of distributed temperature sensing optic cable, comprise optical fiber, optical fiber is coated with tight sleeve pipe, tight sleeve pipe is coated with metal hose, metal hose is coated with the aramid fiber enhancement Layer, the aramid fiber enhancement Layer is coated with wire sheathing, and wire sheathing is coated with low-smoke halogen-free flame-retardant sheath.
Described optical fiber adopts 50/125 μ m multimode optical fiber.
Described metal hose is the spiral metal flexible pipe.
Its principle of work mainly is the back to Raman (Raman) scattering effect of optical time domain reflection (OTDR) according to optical fiber and optical fiber.When laser pulse is propagated in optical fiber and the optical fiber interaction of molecules, the scattering that can produce various ways comprises Rayleigh scattering, Brillouin scattering and Raman scattering etc.Wherein Raman scattering is produced by the thermal vibration optical phonon and the photon interaction generation energy exchange of optical fiber molecule, Raman diffused light is made up of the stokes light and the anti-Stokes light of two kinds of different wave lengths, the light intensity difference of the two has linear relation with the reflection spot fiber optic temperature.Therefore,, can draw the temperature value of whole measured zone every bit, the real distributed measurement of realizing along optical fiber by receiving stokes light and the anti-Stokes light signal that each point returns in the optical fiber and carrying out analyzing and processing.
The utility model advantage is:
1, good reliability, long service life can reach 40 years;
2, security is good, and lightning protection is explosion-proof;
3, anti-electromagnetic interference (EMI), corrosion-resistant is suitable for working under rugged environment;
4, temperature measurement range is big, and heatproof degree performance is good;
5, complete distributed measurement reduces wrong report and rate of failing to report greatly;
6, far measuring distance is suitable for linear long apart from monitoring and remote monitoring.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is a structural representation of the present utility model.
Wherein: 1 optical fiber; 2 tight sleeve pipes; 3 metal hoses; 4 aramid fiber enhancement Layers; 5 wire sheathings; 6 low-smoke halogen-free flame-retardant sheaths.
Embodiment
Embodiment: as shown in Figure 1, a kind of distributed temperature sensing optic cable, comprise optical fiber 1, optical fiber 1 is coated with tight sleeve pipe 2, tight sleeve pipe 2 is coated with metal hose 3, metal hose 3 is coated with aramid fiber enhancement Layer 4, and aramid fiber enhancement Layer 4 is coated with wire sheathing 5, and wire sheathing 5 is coated with low-smoke halogen-free flame-retardant sheath 6.
Described optical fiber 1 adopts 50/125 μ m multimode optical fiber.
Described metal hose 3 is the spiral metal flexible pipe.
The characteristics of this temperature sensing optic cable:
1, optical cable has good machinery, environmental performance and fire resistance, is applicable to adverse circumstances.
2, soft, flexible, construction maintenance convenience.
3, optical fiber adopts 50/125 μ m multimode fibre, has better spatial resolution than single-mode fiber And temperature accuracy.
4, adopt spiral metal flexible pipe and wire sheathing in the optical cable, namely optical fiber played the effect of protection, Increase the mechanical performance of optical cable, can make again optical cable have good pliability, conveniently lay.
5, use the metal coating material can also make temperature be delivered to rapidly optical fiber surface in the optical cable, improve Certainty of measurement.
6, can be widely used in the aspects such as fire-fighting, electric power, oil gas, water conservancy, for example colliery, tunnel Automatic fire alarm system; The fire alarm system in oil depot, dangerous cargo warehouse, arsenal; The power plant or The temperature monitoring of transformer station, accident point location etc.
Claims (3)
1. distributed temperature sensing optic cable, it is characterized in that: comprise optical fiber (1), optical fiber (1) is coated with tight sleeve pipe (2), tight sleeve pipe (2) is coated with metal hose (3), metal hose (3) is coated with aramid fiber enhancement Layer (4), aramid fiber enhancement Layer (4) is coated with wire sheathing (5), and wire sheathing (5) is coated with low-smoke halogen-free flame-retardant sheath (6).
2. distributed temperature sensing optic cable according to claim 1 is characterized in that: described optical fiber (1) adopts 50/125 μ m multimode optical fiber.
3. distributed temperature sensing optic cable according to claim 1 is characterized in that: described metal hose (3) is the spiral metal flexible pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201992593U CN201348666Y (en) | 2008-11-17 | 2008-11-17 | Distributed Temperature Sensing Optical Cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201992593U CN201348666Y (en) | 2008-11-17 | 2008-11-17 | Distributed Temperature Sensing Optical Cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348666Y true CN201348666Y (en) | 2009-11-18 |
Family
ID=41368134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201992593U Expired - Lifetime CN201348666Y (en) | 2008-11-17 | 2008-11-17 | Distributed Temperature Sensing Optical Cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201348666Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102902027A (en) * | 2011-07-28 | 2013-01-30 | 东捷光电科技(苏州)有限公司 | Flame retardant detection optical cable for coal mine |
| CN103576268A (en) * | 2013-11-13 | 2014-02-12 | 武汉鑫光年光电技术有限公司 | Novel temperature measuring cable |
| CN103956200A (en) * | 2014-04-14 | 2014-07-30 | 安徽复兴电缆集团有限公司 | Flexible aluminum alloy cable |
-
2008
- 2008-11-17 CN CNU2008201992593U patent/CN201348666Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102902027A (en) * | 2011-07-28 | 2013-01-30 | 东捷光电科技(苏州)有限公司 | Flame retardant detection optical cable for coal mine |
| CN103576268A (en) * | 2013-11-13 | 2014-02-12 | 武汉鑫光年光电技术有限公司 | Novel temperature measuring cable |
| CN103956200A (en) * | 2014-04-14 | 2014-07-30 | 安徽复兴电缆集团有限公司 | Flexible aluminum alloy cable |
| CN103956200B (en) * | 2014-04-14 | 2016-08-24 | 安徽复兴电缆集团有限公司 | A kind of pliability aluminium alloy cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091118 |
|
| CX01 | Expiry of patent term |