CN203561459U - Fbg temperature sensor - Google Patents
Fbg temperature sensor Download PDFInfo
- Publication number
- CN203561459U CN203561459U CN201320764255.6U CN201320764255U CN203561459U CN 203561459 U CN203561459 U CN 203561459U CN 201320764255 U CN201320764255 U CN 201320764255U CN 203561459 U CN203561459 U CN 203561459U
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- China
- Prior art keywords
- fbg
- capillary
- temperature sensor
- optical fiber
- ceramic pipe
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- 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
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- 239000000919 ceramic Substances 0.000 claims abstract description 24
- 239000011521 glass Substances 0.000 claims abstract description 24
- 239000003292 glue Substances 0.000 claims abstract description 16
- 239000013307 optical fiber Substances 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 7
- 229910000679 solder Inorganic materials 0.000 claims description 5
- 229920000715 Mucilage Polymers 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 229910052755 nonmetal Inorganic materials 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 4
- 238000005538 encapsulation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001953 sensory effect Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Abstract
The utility model discloses an FBG temperature sensor. The FBG temperature sensor includes an FBG which is fixedly encapsulated in a capillary glass tube; the capillary glass tube is encapsulated in a capillary ceramic tube through glue; and a pigtail connected with the FBG is led out from two ends of the capillary glass tube and two ends of the capillary ceramic tube. When outside temperature changes, heat is transferred from the capillary ceramic tube to heat conduction glue inside; the heat conduction glue transfers the heat to the FBG in the capillary glass tube; and the temperature of a measured object can be obtained through obtaining the wavelength variation value of the FBG. The FBG temperature sensor of the utility model has the advantages of small size, simple process and high reliability. The FBG temperature sensor is encapsulated through adopting nonmetal, and therefore, the FBG temperature sensor will not be affected by stress. The FBG temperature sensor can be used for monitoring in all kinds of marine environments.
Description
Technical field
The utility model belongs to technical field of optical fiber sensing, is specifically related to a kind of FBG temperature sensor of ultra-fine nonmetal not affected by force, can be used for marine various kinds of equipment or fixed point ocean current temperature monitoring.
Background technology
After fiber grating is practical, be widely used in optical fiber communication and sensory field of optic fibre, fiber grating has been widely used in static state and the kinetic measurement of numerous physical parameters such as strain, temperature, pressure at present, at sensory field, has brought into play important effect.
The temperature sensor that has in the market a lot of employing fiber gratings, but be all that volume is large mostly, be with Metal Packaging, in the occasions of a lot of application, bring the inconvenience of installation.On some electrical equipments, need the application scenario that completely cuts off metal completely to use, the serious place of some salt fogs inefficacy that is easily corroded at sea, traditional easy affected by force of pure glue packaged type.
Utility model content
Technical purpose of the present utility model is to provide the FBG temperature sensor that a kind of FBG of utilization optical fiber (Fiber Bragg Grating FBG) is manufactured, and its volume is little, adopts non-metallic encapsulation, not affected by force, technique is simple, and reliability is high, can use in all kinds of marine environment and monitor.
The utility model adopts following technical scheme to realize: FBG temperature sensor, comprise the FBG optical fiber being fixedly encapsulated in glass capillary, and described glass capillary is contained in capillary ceramic pipe by mucilage sealing, fills heat-conducting glue in described capillary ceramic pipe.The tail optical fiber being connected with described FBG optical fiber is drawn from described glass capillary and capillary ceramic pipe two ends.
As preferred version, the two ends of described capillary ceramic pipe are by 353ND glue sealing.
As preferred version, described FBG optical fiber two ends divest the coat of 3mm, and described glass capillary two ends are fixedly encapsulated in FBG optical fiber in glass capillary by glass solder is set.
The external diameter of described glass capillary 2 is 1.1mm, and internal diameter is 0.9mm, and length is 20mm.
The external diameter of described capillary ceramic pipe 4 is 2mm, and internal diameter is 1.5mm, and length is 25mm.
The utlity model has following beneficial effect.
1, the utility model temperature sensor external diameter is that 2mm can be installed on various instrument and equipments, can also directly insert inner use of transmission cable and lay with optical cable;
2, in the time of can protecting for the first time the tail optical fiber of FBG that optical fiber is stretched after 353ND glue curing, greatly reduce drawing stress, guarantee that the FBG tail optical fiber Shi Buhui that is stretched is delivered to grating itself by stress;
3, the second protection of capillary ceramic pipe can guarantee the not impact of stress by bending of FBG, and capillary ceramic pipe carries out temperature monitoring to equipment at sea as protection overcoat and is subject to hardly marine corrosion, can guarantee long-term work; The inner heat-conducting glue of filling of capillary ceramic conduit can make temperature transmission effect faster and better.
4, temperature sensor is whole adopts nonmetallic materials encapsulation, can be used on the equipment such as generator and not have the impact of eddy current.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 is the FBG temperature sensor inner structure schematic diagram that the utility model relates to.
Number in the figure: 1-FBG optical fiber, 2-glass capillary, 3-glass solder, 4-capillary ceramic pipe, 5-heat-conducting glue, 6-353ND glue, 7-tail optical fiber.
Embodiment
Embodiment
Referring to Fig. 1, in figure, in the fixing encapsulation glass capillary 2 of FBG optical fiber 1, the two ends of FBG optical fiber 1 divest the coat of 3mm, at glass capillary 2 two ends, by glass solder 3 is set, FBG optical fiber are fixedly encapsulated in glass capillary 2.Glass capillary 2 is contained in capillary ceramic pipe 4 by mucilage sealing, and the tail optical fiber 7 being connected with FBG optical fiber 1 is drawn from glass capillary and capillary ceramic pipe two ends.Concrete, at the interior filling heat-conducting glue 5 of capillary ceramic pipe 2, the two ends of capillary ceramic pipe 2 are by 6 sealings of 353ND glue.
The utility model adopts following step to assemble:
1. divest the about 3mm coat in two ends, FBG optical fiber grid region, and clean up with alcohol;
2. it is 1.1mm that the mode that weld by glass solder in coat region FBG optical fiber being divested is fixed on external diameter, and internal diameter is 0.9mm, in the glass capillary that length is 20mm, comprises respectively to FBG is applied pretension and allows the FBG two kinds of modes that relax;
3. the parts that obtain in step 2 being inserted to external diameter is 2mm, and internal diameter is 1.5mm, in the capillary ceramic pipe that length is 25mm;
4. heat-conducting glue is filled up in the capillary ceramic pipe in step 3, fixedly glass capillary;
5. by the capillary ceramic pipe two ends 353ND glue sealing in step 4.
The foregoing is only preferred embodiment of the present utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1.FBG temperature sensor, it is characterized in that: comprise the FBG optical fiber being fixedly encapsulated in glass capillary, described glass capillary is contained in capillary ceramic pipe by mucilage sealing, in described capillary ceramic pipe, fill heat-conducting glue, the tail optical fiber being connected with described FBG optical fiber is drawn from described glass capillary and capillary ceramic pipe two ends.
2. FBG temperature sensor according to claim 1, is characterized in that: the two ends of described capillary ceramic pipe are by 353ND glue sealing.
3. FBG temperature sensor according to claim 1, is characterized in that: described FBG optical fiber two ends divest the coat of 3mm, and described glass capillary two ends are fixedly encapsulated in FBG optical fiber in glass capillary by glass solder is set.
4. FBG temperature sensor according to claim 1, is characterized in that: the external diameter of described glass capillary (2) is 1.1mm, and internal diameter is 0.9mm, and length is 20mm.
5. FBG temperature sensor according to claim 1, is characterized in that: the external diameter of described capillary ceramic pipe (4) is 2mm, and internal diameter is 1.5mm, and length is 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320764255.6U CN203561459U (en) | 2013-11-27 | 2013-11-27 | Fbg temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320764255.6U CN203561459U (en) | 2013-11-27 | 2013-11-27 | Fbg temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203561459U true CN203561459U (en) | 2014-04-23 |
Family
ID=50511174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320764255.6U Expired - Lifetime CN203561459U (en) | 2013-11-27 | 2013-11-27 | Fbg temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203561459U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142189A (en) * | 2014-08-22 | 2014-11-12 | 国家电网公司 | Fiber bragg grating temperature sensor applied to power equipment |
| CN104729752A (en) * | 2015-03-24 | 2015-06-24 | 中国电子科技集团公司第八研究所 | Non-metal fiber grating high temperature sensor and manufacturing method thereof |
| CN104977031A (en) * | 2015-07-14 | 2015-10-14 | 中国电子科技集团公司第八研究所 | Fiber grating sensor packaging structure and packaging method |
| CN105043281A (en) * | 2015-05-12 | 2015-11-11 | 东北电力大学 | Fiber grating strain sensor and manufacturing method and forming die thereof |
| CN107132172A (en) * | 2017-04-20 | 2017-09-05 | 苏州南智传感科技有限公司 | Rock And Soil seepage flow speed and water content monitoring system and method based on IHAT FBG |
| CN107290076A (en) * | 2017-07-13 | 2017-10-24 | 兰州大学 | A kind of fiber-optical grating temperature sensor of extreme environment multimetering |
| CN107817061A (en) * | 2017-09-06 | 2018-03-20 | 天津大学 | New FBG temperature sensors and its packaging process based on low-melting glass |
| CN108195299A (en) * | 2017-12-25 | 2018-06-22 | 北京信息科技大学 | For the FP of high temperature strain measurement and regeneration FBG compound sensors |
| CN109211797A (en) * | 2018-11-01 | 2019-01-15 | 北京航空航天大学 | A kind of fiber bragg grating temperature sensor with the anti-axial strain interference of temperature-compensating |
| CN112539855A (en) * | 2020-12-29 | 2021-03-23 | 广东精铟海洋工程股份有限公司 | Fiber bragg grating distributed sensing device for measuring bearing temperature, assembly method thereof and method for measuring bearing |
| CN112964386A (en) * | 2021-02-23 | 2021-06-15 | 山东省科学院激光研究所 | Optical fiber FP resonant cavity temperature sensor and manufacturing method thereof |
-
2013
- 2013-11-27 CN CN201320764255.6U patent/CN203561459U/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142189B (en) * | 2014-08-22 | 2017-02-15 | 国家电网公司 | Fiber bragg grating temperature sensor applied to power equipment |
| CN104142189A (en) * | 2014-08-22 | 2014-11-12 | 国家电网公司 | Fiber bragg grating temperature sensor applied to power equipment |
| CN104729752A (en) * | 2015-03-24 | 2015-06-24 | 中国电子科技集团公司第八研究所 | Non-metal fiber grating high temperature sensor and manufacturing method thereof |
| CN105043281A (en) * | 2015-05-12 | 2015-11-11 | 东北电力大学 | Fiber grating strain sensor and manufacturing method and forming die thereof |
| CN105043281B (en) * | 2015-05-12 | 2017-09-05 | 东北电力大学 | A kind of fiber Bragg grating strain sensor and preparation method thereof and mould |
| CN104977031A (en) * | 2015-07-14 | 2015-10-14 | 中国电子科技集团公司第八研究所 | Fiber grating sensor packaging structure and packaging method |
| CN107132172A (en) * | 2017-04-20 | 2017-09-05 | 苏州南智传感科技有限公司 | Rock And Soil seepage flow speed and water content monitoring system and method based on IHAT FBG |
| CN107290076B (en) * | 2017-07-13 | 2023-08-15 | 兰州大学 | Multi-point measuring fiber bragg grating temperature sensor in extreme environment |
| CN107290076A (en) * | 2017-07-13 | 2017-10-24 | 兰州大学 | A kind of fiber-optical grating temperature sensor of extreme environment multimetering |
| CN107817061A (en) * | 2017-09-06 | 2018-03-20 | 天津大学 | New FBG temperature sensors and its packaging process based on low-melting glass |
| CN107817061B (en) * | 2017-09-06 | 2019-12-31 | 天津大学 | Packaging process method of novel FBG temperature sensor based on low-melting-point glass |
| CN108195299A (en) * | 2017-12-25 | 2018-06-22 | 北京信息科技大学 | For the FP of high temperature strain measurement and regeneration FBG compound sensors |
| CN109211797A (en) * | 2018-11-01 | 2019-01-15 | 北京航空航天大学 | A kind of fiber bragg grating temperature sensor with the anti-axial strain interference of temperature-compensating |
| CN112539855A (en) * | 2020-12-29 | 2021-03-23 | 广东精铟海洋工程股份有限公司 | Fiber bragg grating distributed sensing device for measuring bearing temperature, assembly method thereof and method for measuring bearing |
| CN112539855B (en) * | 2020-12-29 | 2023-12-22 | 广东精铟海洋工程股份有限公司 | Fiber bragg grating distributed sensing device for measuring bearing temperature, assembly method thereof and method for measuring bearing |
| CN112964386A (en) * | 2021-02-23 | 2021-06-15 | 山东省科学院激光研究所 | Optical fiber FP resonant cavity temperature sensor and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410100 5 East three road, Changsha Economic Development Zone, Hunan Co-patentee after: CHINA INFORMATION SAFETY RESEARCH INSTITUTE CO.,LTD. Patentee after: GREATWALL INFORMATION INDUSTRY Co.,Ltd. Address before: 410100 5 East three road, Changsha Economic Development Zone, Hunan Co-patentee before: CLP INFORMATION TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Patentee before: GREATWALL INFORMATION INDUSTRY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190807 Address after: 410205 Room 1001, Building 10, Changsha Zhongdian Software Park, 39 Jianshan Road, Changsha High-tech Development Zone, Changsha City, Hunan Province Co-patentee after: CHINA INFORMATION SAFETY RESEARCH INSTITUTE CO.,LTD. Patentee after: Hunan Great Wall Science and Technology Information Co.,Ltd. Address before: 410100 No. three, No. 5 East, Changsha Economic Development Zone, Hunan, China Co-patentee before: CHINA INFORMATION SAFETY RESEARCH INSTITUTE CO.,LTD. Patentee before: GREATWALL INFORMATION INDUSTRY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |