CN202453114U - Optical fiber grating temperature sensor - Google Patents
Optical fiber grating temperature sensor Download PDFInfo
- Publication number
- CN202453114U CN202453114U CN2012200264985U CN201220026498U CN202453114U CN 202453114 U CN202453114 U CN 202453114U CN 2012200264985 U CN2012200264985 U CN 2012200264985U CN 201220026498 U CN201220026498 U CN 201220026498U CN 202453114 U CN202453114 U CN 202453114U
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- China
- Prior art keywords
- fiber
- sensing head
- temperature sensor
- package tube
- sleeve pipe
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- Expired - Fee Related
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses an optical fiber grating temperature sensor which comprises a transmission optical fiber, an optical fiber grating connected to the tail end of the transmission optical fiber and a sensor head packaging tube made of ceramic materials, the optical fiber grating is arranged inside the sensor head packaging tube, and an epoxy resin portion is packaged closely between the optical fiber grating and the sensor head packaging tube. The optical fiber grating temperature sensor has the advantages that measuring accuracy is high, and anti-electromagnetic interference capacity is strong; the characteristics of the small size, fast temperature response speed and good insulation performance meets the requirement for temperature rising detection practical application of electrical appliance heating parts.
Description
Technical field
The utility model relates to a kind of fiber-optical grating temperature sensor, relate in particular to a kind of can be at the fiber-optical grating temperature sensor of forceful electric power environmental work.
Background technology
There are two big defectives in the temperature rise of adopting thermocouple method to detect the electrical heating parts in practical application: first; The electrical equipment builtin voltage is higher; Even when having high-tension circuit to have (as using series excited machine, traditional C RT televisor, display etc.); Thermocouple wire is laid problems such as the improper personnel that very easily cause get an electric shock, externally measured instrument damage, tested electrical short-circuit, brings potential safety hazard to work for inspection; The second, the inner strong electromagnetic wave that produces during most electrical work to be checked, these electromagnetic waves can disturb the signals collecting and the transmission of thermopair, and influence final measurement.
The fiber grating temperature sensor technology is compared with the thermocouple method thermometric has the advantage highly sensitive, that anti-electromagnetic interference capability is strong.But traditional fiber-optical grating temperature sensor adopts the metal material encapsulation from the purpose that increases temperature control and package casing protection intensity more; Do not meet the requirement of electric insulation in the electric apparatus temperature rise detection; And traditional fiber grating temperature sensor physical dimension is bigger; Influenced the sensor response speed of temperature to external world, do not met in the electric apparatus temperature rise detection the real-time Testing requirement of rapid warm raising.
The utility model content
The utility model provide a kind of can be at the fiber-optical grating temperature sensor of forceful electric power environmental work, it has overcome, and existing thermocouple method detects the drawback that electric apparatus temperature rise exists in the background technology.
The technical scheme that is adopted that the utility model solves its technical matters is:
A kind of fiber-optical grating temperature sensor; It comprises that a Transmission Fibers (5), connects and is located at the sensing head package tube (2) that the terminal fiber grating (1) of Transmission Fibers (5) and is processed by stupalith; Said fiber grating (1) is put in the sensing head package tube (2), and between fiber grating (1) and sensing head package tube (2) compact package epoxy resin part.
Among one preferred embodiment: said sensing head package tube (2) has a diapire and and extends the perisporium that forms by diapire periphery axis, and said perisporium end periphery becomes opening, and said fiber grating (1) is put in the sensing head package tube (2) from opening.
Among one preferred embodiment: said fiber grating (1) end leans against diapire.
Among one preferred embodiment: said epoxy resin part and perisporium end periphery flush.
Among one preferred embodiment: it also comprises a fiber optic protection sleeve pipe (3), and said fiber optic protection sleeve pipe (3) is enclosed within outside the Transmission Fibers (5), and, the epoxy resin part tight bond in said fiber optic protection sleeve pipe (3) axial end portion and the sensing head package tube (2).
Among one preferred embodiment: the epoxy resin in said fiber optic protection sleeve pipe (3) axial end portion and the sensing head package tube (2) is partly through the epoxy resin tight bond.
Among one preferred embodiment: it also comprises the connector (4) processed by stupalith, and said connector (4) is socketed in outside fiber optic protection sleeve pipe (3) and the sensing head package tube (2), and the junction of corresponding fiber optic protection sleeve pipe and epoxy resin part.
Among one preferred embodiment: said sensing head package tube (2), fiber optic protection sleeve pipe (3) are the cylindrical wall shape, and said sensing head package tube (2) external diameter is greater than fiber optic protection sleeve pipe (3) external diameter.
The present technique scheme is compared with background technology, and it has following advantage:
1, fiber grating through epoxy resin part compact package in the sensor package pipe that stupalith is processed, therefore overcome the existing deficiency of background technology and produce following technique effect: a, measuring accuracy is high, anti-electromagnetic interference capability is strong; B, volume are little, temperature-responsive speed fast and the characteristics of good insulation preformance, meet the temperature rise of electrical heating parts and detect requirement of actual application.
2, Transmission Fibers is protected with optical fiber protective tube, and sensor package pipe and optical fiber protective tube junction are with epoxy bond and be inserted in the connector and protect, and protective value is good.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 has illustrated the structural representation of the fiber-optical grating temperature sensor of the utility model one preferred embodiment
Label declaration: 1---fiber grating; 2---sensing head package tube; 3---fiber optic protection sleeve pipe; The 4---connector; The 5---Transmission Fibers.
Embodiment
Please refer to Fig. 1, a kind of fiber-optical grating temperature sensor, it comprises a fiber grating 1, a sensing head package tube 2, a fiber optic protection sleeve pipe 3, a connector 4 and a Transmission Fibers 5.Said fiber grating 1 connects and is located at Transmission Fibers 5 ends.
Said sensing head package tube 2 is cylindrical, and it has a diapire and and extends the perisporium that forms by diapire periphery axis, and said perisporium end periphery becomes opening.Said sensing head package tube 2 is processed with stupalith, and among the present embodiment, said stupalith principal ingredient is a zirconia.
Said fiber grating 1 is put in the sensing head package tube 2 from the opening of sensing head package tube 2, that is to say said fiber grating 1 is put in the sensing head package tube 2.And, in fiber grating 1 and 2 compact package epoxy resin of sensing head package tube part, with fiber grating 1 usefulness epoxy resin part all compact package in sensing head package tube 2.Best, said fiber grating 1 end leans against diapire, and said epoxy resin part and perisporium end periphery flush.
Said fiber optic protection sleeve pipe 3 is socketed in outside the Transmission Fibers 5, and said sensing head package tube 2 external diameters are greater than fiber optic protection sleeve pipe 3 external diameters.Epoxy resin part tight bond in said fiber optic protection sleeve pipe 3 axial end portions and the sensing head package tube 2, best, through the epoxy resin tight bond.
Said connector 4 is socketed in outside fiber optic protection sleeve pipe 3 and the sensing head package tube 2; And the junction of corresponding fiber optic protection sleeve pipe and epoxy resin part; That is to say that a part is socketed in outside the fiber optic protection sleeve pipe 3, another part is socketed in outside the sensing head package tube 2, and adopts epoxy resin fixedly sleeved.
The above; Be merely the utility model preferred embodiment; So can not limit the scope that the utility model is implemented according to this, the equivalence of promptly doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.
Claims (8)
1. fiber-optical grating temperature sensor; It comprises that a Transmission Fibers (5) and connects the fiber grating (1) that is located at Transmission Fibers (5) end; It is characterized in that: it also comprises the sensing head package tube (2) processed by stupalith; Said fiber grating (1) is put in the sensing head package tube (2), and between fiber grating (1) and sensing head package tube (2) compact package epoxy resin part.
2. a kind of fiber-optical grating temperature sensor according to claim 1; It is characterized in that: said sensing head package tube (2) has a diapire and and extends the perisporium that forms by diapire periphery axis; Said perisporium end periphery becomes opening, and said fiber grating (1) is put in the sensing head package tube (2) from opening.
3. a kind of fiber-optical grating temperature sensor according to claim 2 is characterized in that: said fiber grating (1) end leans against diapire.
4. a kind of fiber-optical grating temperature sensor according to claim 2 is characterized in that: said epoxy resin part and perisporium end periphery flush.
5. according to claim 1 or 2 or 3 or 4 described a kind of fiber-optical grating temperature sensors; It is characterized in that: it also comprises a fiber optic protection sleeve pipe (3); Said fiber optic protection sleeve pipe (3) is enclosed within outside the Transmission Fibers (5); And, the epoxy resin part tight bond in said fiber optic protection sleeve pipe (3) axial end portion and the sensing head package tube (2).
6. a kind of fiber-optical grating temperature sensor according to claim 5 is characterized in that: the epoxy resin in said fiber optic protection sleeve pipe (3) axial end portion and the sensing head package tube (2) is partly through the epoxy resin tight bond.
7. a kind of fiber-optical grating temperature sensor according to claim 5; It is characterized in that: it also comprises the connector (4) processed by stupalith; Said connector (4) is socketed in outside fiber optic protection sleeve pipe (3) and the sensing head package tube (2), and the junction of corresponding fiber optic protection sleeve pipe and epoxy resin part.
8. a kind of fiber-optical grating temperature sensor according to claim 7 is characterized in that: said sensing head package tube (2), fiber optic protection sleeve pipe (3) are the cylindrical wall shape, and said sensing head package tube (2) external diameter is greater than fiber optic protection sleeve pipe (3) external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200264985U CN202453114U (en) | 2012-01-19 | 2012-01-19 | Optical fiber grating temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200264985U CN202453114U (en) | 2012-01-19 | 2012-01-19 | Optical fiber grating temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202453114U true CN202453114U (en) | 2012-09-26 |
Family
ID=46868969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200264985U Expired - Fee Related CN202453114U (en) | 2012-01-19 | 2012-01-19 | Optical fiber grating temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202453114U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928112A (en) * | 2012-11-23 | 2013-02-13 | 天津亿利科能源科技发展股份有限公司 | Temperature monitoring device for offshore platform electric power equipment and monitoring method thereof |
| CN107860408A (en) * | 2017-10-25 | 2018-03-30 | 南京大学 | A kind of detachable hygrometer based on FBG technologies |
| CN108645534A (en) * | 2018-05-24 | 2018-10-12 | 哈尔滨博检精测科技有限公司 | Train axle temperature wheel temperature on-line monitoring system based on fiber grating |
-
2012
- 2012-01-19 CN CN2012200264985U patent/CN202453114U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928112A (en) * | 2012-11-23 | 2013-02-13 | 天津亿利科能源科技发展股份有限公司 | Temperature monitoring device for offshore platform electric power equipment and monitoring method thereof |
| CN107860408A (en) * | 2017-10-25 | 2018-03-30 | 南京大学 | A kind of detachable hygrometer based on FBG technologies |
| CN108645534A (en) * | 2018-05-24 | 2018-10-12 | 哈尔滨博检精测科技有限公司 | Train axle temperature wheel temperature on-line monitoring system based on fiber grating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20120926 Termination date: 20130119 |