CN101458375A - Distributed temperature sensing optic cable - Google Patents
Distributed temperature sensing optic cable Download PDFInfo
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- CN101458375A CN101458375A CNA2008101362451A CN200810136245A CN101458375A CN 101458375 A CN101458375 A CN 101458375A CN A2008101362451 A CNA2008101362451 A CN A2008101362451A CN 200810136245 A CN200810136245 A CN 200810136245A CN 101458375 A CN101458375 A CN 101458375A
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- optical fiber
- temperature sensing
- coated
- distributed temperature
- optic cable
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- Measuring Temperature Or Quantity Of Heat (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
The invention discloses a distributed temperature sensing optical cable, comprising a fiber; a tight tube wraps the fiber, a flexible metallic tube wraps the tight tube, an aramid fiber reinforcing layer wraps the flexible metallic tube, wire sheathing wraps the aramid fiber reinforcing layer and a low-smoke halogen free flame retardant sheath wraps the wire sheathing. The optical cable can be applied to a distributed temperature monitoring system, which can be used as a temperature sensor and a channel for data information transmission.
Description
Technical field
The present invention 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 present invention seeks to: 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.
Technical scheme of the present invention 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.
This spiral metal flexible pipe of described metal hose.
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.
Advantage of the present invention 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 present invention is further described:
Fig. 1 is a structural representation of the present invention.
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 these spiral metal flexible pipes.
The characteristics of this temperature sensing optic cable:
1, optical cable has good machinery, environmental performance and fire resistance, is applicable to rugged surroundings.
2, soft, flexible, construction maintenance convenience.
3, optical fiber adopts 50/125 μ m multimode optical fiber, has better spatial resolution and temperature accuracy than single-mode fiber.
4, adopt spiral metal flexible pipe and wire sheathing in the optical cable, promptly optical fiber is played the effect of protection, increase the mechanical property of optical cable, can make optical cable have good flexible again, conveniently lay.
5, use the metal coating material can also make temperature be delivered to optical fiber surface rapidly in the optical cable, improve measuring accuracy.
6, can be widely used in aspects such as fire-fighting, electric power, oil gas, water conservancy, for example automatic fire alarm system in colliery, tunnel; The fire alarm system in oil depot, dangerous cargo warehouse, arsenal; The temperature monitoring of generating plant or 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: this spiral metal flexible pipe of described metal hose (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101362451A CN101458375A (en) | 2008-11-17 | 2008-11-17 | Distributed temperature sensing optic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101362451A CN101458375A (en) | 2008-11-17 | 2008-11-17 | Distributed temperature sensing optic cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101458375A true CN101458375A (en) | 2009-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101362451A Pending CN101458375A (en) | 2008-11-17 | 2008-11-17 | Distributed temperature sensing optic cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN101458375A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871823A (en) * | 2010-06-17 | 2010-10-27 | 哈尔滨草青木秀电子技术有限责任公司 | Distributed linear optical fiber temperature sensor and application |
| CN101986398A (en) * | 2010-10-09 | 2011-03-16 | 甘肃省电力公司金昌供电公司 | Fiber Bragg grating-embedded 110kV composite insulator |
| CN102681113A (en) * | 2011-03-09 | 2012-09-19 | 东捷光电科技(苏州)有限公司 | Multi-core stranded loose tube soft-armored optical cable |
| CN102681114A (en) * | 2011-03-09 | 2012-09-19 | 东捷光电科技(苏州)有限公司 | Armored sensing optical cable |
| CN102789031A (en) * | 2011-05-18 | 2012-11-21 | 东捷光电科技(苏州)有限公司 | Nuclear energy monitoring optical cable |
| CN103325464A (en) * | 2013-05-31 | 2013-09-25 | 成都亨通光通信有限公司 | Remote radio photoelectric composite cable for base station |
| CN105301729A (en) * | 2015-12-12 | 2016-02-03 | 武汉理工大学 | High strength and temperature sensitive optical cable |
| CN110501304A (en) * | 2018-05-16 | 2019-11-26 | 淄博祥龙测控技术有限公司 | Underground spectrum Tube Bundle Monitoring System |
| CN111343938A (en) * | 2017-11-10 | 2020-06-26 | 波士顿科学医学有限公司 | Medical laser fiber |
-
2008
- 2008-11-17 CN CNA2008101362451A patent/CN101458375A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871823A (en) * | 2010-06-17 | 2010-10-27 | 哈尔滨草青木秀电子技术有限责任公司 | Distributed linear optical fiber temperature sensor and application |
| CN101986398A (en) * | 2010-10-09 | 2011-03-16 | 甘肃省电力公司金昌供电公司 | Fiber Bragg grating-embedded 110kV composite insulator |
| CN101986398B (en) * | 2010-10-09 | 2016-07-20 | 甘肃省电力公司金昌供电公司 | Implant the 110kV composite insulator of fiber grating |
| CN102681113A (en) * | 2011-03-09 | 2012-09-19 | 东捷光电科技(苏州)有限公司 | Multi-core stranded loose tube soft-armored optical cable |
| CN102681114A (en) * | 2011-03-09 | 2012-09-19 | 东捷光电科技(苏州)有限公司 | Armored sensing optical cable |
| CN102789031A (en) * | 2011-05-18 | 2012-11-21 | 东捷光电科技(苏州)有限公司 | Nuclear energy monitoring optical cable |
| CN103325464A (en) * | 2013-05-31 | 2013-09-25 | 成都亨通光通信有限公司 | Remote radio photoelectric composite cable for base station |
| CN105301729A (en) * | 2015-12-12 | 2016-02-03 | 武汉理工大学 | High strength and temperature sensitive optical cable |
| CN111343938A (en) * | 2017-11-10 | 2020-06-26 | 波士顿科学医学有限公司 | Medical laser fiber |
| US11737825B2 (en) | 2017-11-10 | 2023-08-29 | Boston Scientific Scimed, Inc. | Medical laser fiber |
| CN111343938B (en) * | 2017-11-10 | 2024-03-01 | 波士顿科学医学有限公司 | Medical laser fiber |
| CN110501304A (en) * | 2018-05-16 | 2019-11-26 | 淄博祥龙测控技术有限公司 | Underground spectrum Tube Bundle Monitoring System |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090617 |