CN201935753U - Fiber grating temperature sensor - Google Patents
Fiber grating temperature sensor Download PDFInfo
- Publication number
- CN201935753U CN201935753U CN2010206987387U CN201020698738U CN201935753U CN 201935753 U CN201935753 U CN 201935753U CN 2010206987387 U CN2010206987387 U CN 2010206987387U CN 201020698738 U CN201020698738 U CN 201020698738U CN 201935753 U CN201935753 U CN 201935753U
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- Prior art keywords
- fiber grating
- groove
- temperature sensor
- fiber
- glue
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- Expired - Fee Related
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- 239000000835 fiber Substances 0.000 title claims abstract description 34
- 239000003292 glue Substances 0.000 claims description 20
- 239000013307 optical fiber Substances 0.000 claims description 9
- 238000009529 body temperature measurement Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- -1 and uncontrolled Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to a fiber grating temperature sensor, which comprises a shell, a sensor core and a fiber grating. The sensor core is provided with a groove for holding the fiber grating, two sides of the fiber grating are fixed in the groove, and accordingly the fiber grating in the groove is in a curved loosing state. The fiber grating temperature sensor has the advantages of fast temperature measurement speed, low measurement error and the like, and can be applied to distribution type or spot type temperature measurement.
Description
Technical field
The utility model relates to a kind of temperature survey, especially a kind of fiber-optical grating temperature sensor.
Background technology
As shown in Figure 1, existing fiber-optical grating temperature sensor comprises sensor core, fiber grating, the sensor core is a semicylinder, and there is straight-line groove the centre, and fiber grating is put into groove, and two ends are fixed in the groove by a glue, and middle fiber grating part is crooked, unsettled.The sensor has many deficiencies, as:
1, the sweep of optical fiber is unsettled and uncontrolled, shakes easily and produces deformation, has increased measuring error.
2, unsettled fiber grating conducts heat slowly, and the thermometric reaction time is long.
Glue is moving along concentrated flow when 3, putting glue, and uncontrolled, glue can not be limited in the position of requirement, and the bending length and the size of optical fiber are also uncontrolled simultaneously, the production and processing difficulty, and yield rate is low.
The utility model content
Be to solve the deficiencies in the prior art, the utility model proposes a kind of thermometric speed height, production and processing is easy, yield rate is high fiber-optical grating temperature sensor.
For achieving the above object, the utility model is by the following technical solutions:
A kind of fiber-optical grating temperature sensor comprises shell, sensor core and fiber grating; Characteristics are: described sensor core is provided with the groove that is used for the receiving optical fiber grating, and the two ends of fiber grating are fixed in the groove, makes that the fiber grating in the groove is in crooked relaxed state.
Further, the two ends of described fiber grating are fixed in the groove by a glue.
Further, described groove two ends are provided with the pond of overflowing of glue unnecessary when being used to be contained in glue.
Further, the part of described sensor core is a right cylinder.
As preferably, the two ends of sensor core are right cylinder.
Compared with prior art, advantage of the present utility model is:
1, fiber grating is fixed in the groove, makes extraneous heat to be delivered on the fiber grating by the sensor core in time, has improved measuring speed.Fiber grating is in the groove, can not shake because of the vibration in the external world, has improved the stability of sensor.
2, fiber grating is in crooked relaxed state (do not compress, do not stretch) in groove, has avoided being subjected in measuring process the influence of fiber grating pull stress deformation, has reduced temperature measurement error.
3, be provided with at the groove two ends and overflow the pond, make that unnecessary glue can flow into and overflow the pond, thereby makes the stationkeeping of invocation point glue, has reduced the production and processing difficulty of sensor, has improved the yield rate of sensor production when the two ends by some glue fixed fiber grating.
Description of drawings
Fig. 1 is the structural representation of existing fiber-optical grating temperature sensor;
Fig. 2 is the structural representation of sensor of the present utility model;
Fig. 3 is the structural representation of fiber-optic grating sensor core of the present utility model.
Embodiment
Embodiment:
As shown in Figure 2, a kind of fiber-optical grating temperature sensor comprises optical cable 1, sheath 2, shell 3, fiber grating 4, sensor core 5, glue 6, plug 7.
As shown in Figure 3, described sensor core 5 totally be half-cylindrical, and wherein to have be right cylinder 51 everywhere at two ends.On right cylinder 51, cut out slit 52, so that optical fiber passes through; Described sensor core 5 has one to run through the aperture 53 of cylindrical center, so that pass optical fiber; Have groove 54 in the middle of the described sensor core 5, allow crooked fiber grating 4 hold to go into, and be in crooked relaxed state (not having to compress and stretch), the two ends of fiber grating 4 are fixed in the groove 54 by glue 6.Have two in the both sides of groove 54 and overflow pond 55, the glue that has more during in order to receiving optical fiber grating 4 two-end-point glue.
Present embodiment has also disclosed a kind of above-mentioned fiber-optic grating sensor measurement method of temperature of utilizing, and may further comprise the steps:
The heat at environment to be measured place is delivered to sensor core 5 by sensor outer housing 3; Described sensor core 5 totally be half-cylindrical, and wherein to have be right cylinder 51 everywhere at two ends;
Heat passes to fiber grating 4 again, and the groove 54 that is provided with on the sensor core 5 holds described fiber grating 4, and fiber grating 4 is in crooked relaxed state in groove 54, also promptly do not compress, do not stretch; The both sides of described fiber grating 4 are fixed in the groove 54 by glue 6, have two in the both sides of groove 54 and overflow pond 55, the glue that has more during in order to receiving optical fiber grating 4 two-end-point glue.
By analyzing the sense temperature of fiber grating 4, thereby learn the temperature of environment to be measured.
Above-mentioned embodiment should not be construed as the restriction to the utility model protection domain.Key of the present utility model is, the groove of receiving optical fiber grating is set on the sensor core, makes fiber grating be in crooked relaxed state (not stretching and compression) in groove.Under the situation that does not break away from the utility model spirit, any type of change that the utility model is made all should fall within the protection domain of the present utility model.
Claims (5)
1. a fiber-optical grating temperature sensor comprises shell, sensor core and fiber grating; It is characterized in that: described sensor core is provided with the groove that is used for the receiving optical fiber grating, and the both sides of fiber grating are fixed in the groove, makes that the fiber grating in the groove is in crooked relaxed state.
2. temperature sensor according to claim 1 is characterized in that: the two ends of described fiber grating are fixed in the groove by a glue.
3. temperature sensor according to claim 1 is characterized in that: described groove two ends are provided with the pond of overflowing of glue unnecessary when being used to be contained in glue.
4. temperature sensor according to claim 1 is characterized in that: the part of described sensor core is a right cylinder.
5. temperature sensor according to claim 4 is characterized in that: the two ends of described sensor core are right cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206987387U CN201935753U (en) | 2010-12-31 | 2010-12-31 | Fiber grating temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206987387U CN201935753U (en) | 2010-12-31 | 2010-12-31 | Fiber grating temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201935753U true CN201935753U (en) | 2011-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206987387U Expired - Fee Related CN201935753U (en) | 2010-12-31 | 2010-12-31 | Fiber grating temperature sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN201935753U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706479A (en) * | 2012-06-28 | 2012-10-03 | 上海谱蔚物联网有限公司 | Fiber grating temperature sensor with modularized structure |
| CN105659059A (en) * | 2013-10-24 | 2016-06-08 | 韦特福特科技控股有限责任公司 | Strain isolation type fiber Bragg grating sensor |
| CN105823573A (en) * | 2016-05-20 | 2016-08-03 | 江苏昂德光电科技有限公司 | Optical fiber temperature sensor and dispensing method thereof |
| CN105928468A (en) * | 2016-06-24 | 2016-09-07 | 深圳市畅格光电有限公司 | Fiber grating strain sensor and manufacturing method thereof |
| CN108204866A (en) * | 2018-01-04 | 2018-06-26 | 长飞光纤光缆股份有限公司 | A kind of non-calibrating tandem type fiber-optical grating temperature sensor preparation method and product |
-
2010
- 2010-12-31 CN CN2010206987387U patent/CN201935753U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706479A (en) * | 2012-06-28 | 2012-10-03 | 上海谱蔚物联网有限公司 | Fiber grating temperature sensor with modularized structure |
| CN102706479B (en) * | 2012-06-28 | 2014-10-29 | 上海谱蔚物联网有限公司 | Fiber grating temperature sensor with modularized structure |
| CN105659059A (en) * | 2013-10-24 | 2016-06-08 | 韦特福特科技控股有限责任公司 | Strain isolation type fiber Bragg grating sensor |
| CN105823573A (en) * | 2016-05-20 | 2016-08-03 | 江苏昂德光电科技有限公司 | Optical fiber temperature sensor and dispensing method thereof |
| CN105928468A (en) * | 2016-06-24 | 2016-09-07 | 深圳市畅格光电有限公司 | Fiber grating strain sensor and manufacturing method thereof |
| CN108204866A (en) * | 2018-01-04 | 2018-06-26 | 长飞光纤光缆股份有限公司 | A kind of non-calibrating tandem type fiber-optical grating temperature sensor preparation method and product |
| CN108204866B (en) * | 2018-01-04 | 2019-11-22 | 长飞光纤光缆股份有限公司 | A kind of non-calibrating tandem type fiber grating temperature sensor preparation method and product |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: WUXI FPI SENSOR NETWORK CO., LTD. Effective date: 20120314 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120314 Address after: Hangzhou City, Zhejiang province Binjiang District 310052 shore road 760 Patentee after: Focused Photonics (Hangzhou) Inc. Address before: Hangzhou City, Zhejiang province Binjiang District 310052 shore road 760 Co-patentee before: Wuxi Juguang Shengshi Sensor Network Co., Ltd. Patentee before: Focused Photonics (Hangzhou) Inc. |
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| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI BOHUI COMMUNICATION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: FOCUSED PHOTONICS (HANGZHOU) INC. Effective date: 20130506 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 310052 HANGZHOU, ZHEJIANG PROVINCE TO: 201203 PUDONG NEW AREA, SHANGHAI |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130506 Address after: 201203, Shanghai, Pudong New Area, No. 177 blue wave road, B District, 2 layers Patentee after: Shanghai Bohui Communication Technology Co., Ltd. Address before: Hangzhou City, Zhejiang province Binjiang District 310052 shore road 760 Patentee before: Focused Photonics (Hangzhou) Inc. |
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| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 201203 room 177, No. 203 blue wave road, Zhangjiang hi tech park, Shanghai Patentee after: SHANGHAI BANDWEAVER TECHNOLOGIES CO., LTD. Address before: 201203, Shanghai, Pudong New Area, No. 177 blue wave road, B District, 2 layers Patentee before: Shanghai Bohui Communication Technology Co., Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 103, Building 299, Zhongchen Road, Songjiang District, Shanghai, 20113 Patentee after: Shanghai Bohui Technology Co., Ltd. Address before: Room 203, 177 Bibo Road, Zhangjiang High-tech Park, Shanghai, 201203 Patentee before: Shanghai Bandweaver Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20191231 |