CN203011575U - Cover plate type optical fiber grating sensor - Google Patents
Cover plate type optical fiber grating sensor Download PDFInfo
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- CN203011575U CN203011575U CN201220624057.5U CN201220624057U CN203011575U CN 203011575 U CN203011575 U CN 203011575U CN 201220624057 U CN201220624057 U CN 201220624057U CN 203011575 U CN203011575 U CN 203011575U
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- plate type
- grating sensor
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- protective casing
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Abstract
The utility model discloses a cover plate type optical fiber grating sensor which comprises a grating and a protective sleeve. A jumper and a tensile fiber are fixedly arranged in the protective sleeve. One end of the protective sleeve is fixedly connected with a flange interface, and the other end of the protective sleeve is fixedly connected with a temperature induction box. The temperature induction box comprises two parts of a sensing protective groove and a packaging cover plate. The grating is packaged in the temperature induction box. The jumper and the grating are connected in the temperature induction box. Compared with the prior art, the cover plate type optical fiber grating sensor provided by the utility model has great mechanical performance, sensor performance, insulation performance and reliability performance, and improves the firmness, the data acquisition precision and the acquisition speed of a sensor.
Description
Technical field
The utility model belongs to sensor field, is specifically related to a kind of temperature sensor.
Background technology
The characteristics that fiber-optic grating sensor is wide because of its measurement range, measuring accuracy is high, intrinsic insulate, passive, the life-span is long, use more in the temperature monitoring of electric power electrical apparatus, its packaged type direct relation sensor of while is stable, reliability service, and directly affects the reliability of tested electric power electrical apparatus.Traditional fiber-optic grating sensor generally adopts metal or stupalith, adopt screw thread, the single-sensor packaged type such as gluing, and these class methods are in encapsulated sensor core temperature sensing part---during grating, easily occur as the grating encapsulation difficulty is large, encapsulate not closely, not firm, along with the impact of the factors such as time, external force, there are the problems such as rate is low that easily come off, manufacture a finished product, simultaneously, also there is easily fragmentation of ceramic sensor element in the Installation and Debugging process, is unfavorable for the problems such as field conduct.Therefore make that a kind of encapsulation is simple and easy, sealing, survival rate be high, simple, the non-damageable reliable sensor of field conduct seems particularly important to assurance production efficiency, system stable operation.For improving manufacturer production efficient and product percent of pass; simplify the site operation difficulty; satisfy safety, the stable operation requirement of the temperature monitoring of electric power electrical apparatus; polyimide material is protected carrier as sensor package; the protection carrier is being adopted on the basis of cover-plate type new structure design; select industrial waterproof heatproof glue to encapsulate; the mode of optimized production process and process; can be applicable to a kind of novel sensor on electric power electrical apparatus, can accurately reflect the electric power electrical apparatus real-time running state by this sensor.
Summary of the invention
Given this, the utility model purpose is to provide that a kind of survival rate is high, firm, not fragile, the simple fiber-optic grating sensor of installation, also provides simultaneously a kind of packaging efficiency high fiber-optic grating sensor method for packing.
For solving above technical matters; the technical scheme that the utility model provides is; a kind of cover-plate type fiber-optic grating sensor is provided; comprise grating and protective casing, be fixedly installed wire jumper and traction-resistant fibre in described protective casing, protective casing one end is fixedly connected with flange-interface; the described protective casing other end is fixedly connected with the temperature sense box; this temperature sense box comprises that sensing protects groove and encapsulation cover plate two parts, and grating is encapsulated in the temperature sense box, and described wire jumper and grating are connected the temperature sense box is inner.
Preferably, described sensing is protected and is provided with the buckle female on groove, is provided with the buckle male on described encapsulation cover plate.
Preferably, be provided with semi-circular recesses on described buckle female and buckle male.
Preferably, the diameter of described semi-circular recesses equates with the external diameter of protective casing.
Preferably, described flange-interface adopts the FC/APC flange.
Preferably, described temperature sense box is made by polyimide.
Preferably, it is bonding that described sensing is protected groove, encapsulation cover plate, protective casing passes through viscose glue.Described viscose glue is high temperature resistant AB glue.
Compared with prior art, the beneficial effects of the utility model are:
1, to be encapsulated in the protection carrier be that sensing is protected in groove, encapsulation cover plate to the grating in the utility model; the protection carrier adopts the polyimide material; its mechanical property, sensor performance, insulating property, firm performance are good, have improved sensor firmness, accuracy of data acquisition and picking rate.
2, the utility model protection carrier is through the design of the special mechanical structures such as anti-skidding, guiding, buckle; adopt a male and female buckle, gluingly press dual fixed form; greatly enhance productivity and produce motility rate, also having improved the solid fixing of sensor simultaneously, being difficult for decomposing or coming off.
3, the whole polyimide material that adopts of the utility model sensor is made, anti-ageing, resistance to compression, waterproof, fire protecting performance cause this sensor site operation simply, not fragile, be beneficial to construction.
4, the utility model optical fiber output interface adopts the FC/APC standard interface, and installation of sensors is more convenient, changes simplyr, facilitates site operation.
The cover-plate type fiber-optic grating sensor adopts fiber grating sensing technology, namely a kind of take light as carrier, optical fiber is the New Sensing Technology of medium, perception and transmission outer signals, passive non-electricity.This sensor adopts the Bragg reflection principle of fiber grating to come the physical values of perception external device.Namely when light during the space phase grating by forming with the irradiation optical fiber of ultraviolet light, the center wavelength of light signal that optical grating reflection returns is portability foreign objects reason value information, because of variation and the extraneous physical values with Bragg grating centre wavelength, as linear in temperature, pressure, gravitation etc., so get final product the physical values of perception external device by analyzing optical wavelength signal.Due to the insulating property of optical fiber itself, light signal is not because of the electromagnetic environment impact, without characteristics such as source service life length.Adopt the cover-plate type buckle to add gluing encapsulation technology, better grating being encapsulated in the protection carrier is in the temperature sense box, forms a kind of fiber-optic grating sensor of standard interface.
The utility model solved that the sensor production difficulty is large, efficient is low, survival rate is low, installation is complicated, is difficult for changing, easily come off when long or the defective such as fragile, provide a kind of can convenient, fastly produce, enhance productivity and quality, with standard signal interface, easily the cover-plate type fiber-optic grating sensor of changing is installed, it has reduced the production rejection rate, save production cost, improved installation, debugging, replacing efficient.The cover-plate type fiber-optic grating sensor that manufactures due to the utility model has changed the selection of traditional sensors material, encapsulating structure, make that the utility model production is quick, efficient is efficient, easy for installation, structure is firm, elegant in appearance, debugging is simple and easy, be beneficial to and change, can solve directly that traditional sensors is not firm, the unstable potential safety hazard that causes, operation provides safety guarantee to equipment and system, and also the quality of life for the development of national economy and broad masses of the people provides safeguard.This project advantage the most intuitively is to save manpower, financial resources, is the very large innovation to aspects such as traditional fiber grating sensor packing forms, material type selecting, interface mode and engineering constructions.Filled up the blank of the cover plate buckle mounting means of this field fiber-optic grating sensor product.
Description of drawings
Fig. 1 is temperature sense box structural representation of the present invention.
Fig. 2 is that sensing of the present invention is protected the groove structural representation.
Fig. 3 is encapsulation cover plate structural representation of the present invention.
Fig. 4 is protective casing of the present invention and flange-interface structural representation.
Embodiment
Describe below in conjunction with accompanying drawing and specific embodiment.
Referring to Fig. 1 to Fig. 4.The described cover-plate type fiber-optic grating sensor of the present embodiment comprises grating and protective casing 2, is fixedly installed wire jumper 21 and traction-resistant fibre 22 in described protective casing 2, and protective casing 2 one ends are fixedly connected with flange-interface 3.Wire jumper 21 is optical fiber, and namely light transmitting fiber, be used for transmitting optical signal.Flange-interface 3 adopts the FC/APC flange, is the sensor signal output interface.Described protective casing 2 other ends are fixedly connected with temperature sense box 1, and this temperature sense box 1 comprises that sensing protects groove 11 and encapsulation cover plate 12 two parts, and grating is encapsulated in temperature sense box 1, and described wire jumper 21 and grating are connected temperature sense box 1 is inner.1 perception of temperature sense box is also transmitted temperature to grating.Grating passes to light signal wire jumper 21 again.Protective casing 2 is a white pillar.Described sensing is protected groove 11, encapsulation cover plate 12, protective casing 2 and is connect by heatproof AB is gluing.
Sensing is protected and is provided with buckle female 110 on groove 11, is provided with buckle male 120 on described encapsulation cover plate 12.Be provided with semi-circular recesses on buckle female 110 and buckle male 120.When buckle female 110 and buckle male 120 fasten, surround a manhole, the equal diameters of the diameter in this hole and protective casing 2.Temperature sense box 1 and protective casing 2 are made by polyimide.
Be below only preferred implementation of the present utility model, should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with the claim limited range.For those skilled in the art, within not breaking away from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. cover-plate type fiber-optic grating sensor; comprise grating and protective casing; be fixedly installed wire jumper and traction-resistant fibre in described protective casing; protective casing one end is fixedly connected with flange-interface; it is characterized in that, the described protective casing other end is fixedly connected with the temperature sense box, and this temperature sense box comprises that sensing protects groove and encapsulation cover plate two parts; grating is encapsulated in the temperature sense box, and described wire jumper and grating are connected the temperature sense box is inner.
2. cover-plate type fiber-optic grating sensor according to claim 1, is characterized in that, described sensing is protected and is provided with the buckle female on groove, is provided with the buckle male on described encapsulation cover plate.
3. cover-plate type fiber-optic grating sensor according to claim 2, is characterized in that, is provided with semi-circular recesses on described buckle female and buckle male.
4. cover-plate type fiber-optic grating sensor according to claim 3, is characterized in that, the diameter of described semi-circular recesses equates with the external diameter of protective casing.
5. cover-plate type fiber-optic grating sensor according to claim 1, is characterized in that, described flange-interface adopts the FC/APC flange.
6. cover-plate type fiber-optic grating sensor according to claim 1, is characterized in that, described temperature sense box is made by polyimide.
7. cover-plate type fiber-optic grating sensor according to claim 1, is characterized in that, it is bonding that described sensing is protected groove, encapsulation cover plate, protective casing passes through viscose glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220624057.5U CN203011575U (en) | 2012-11-22 | 2012-11-22 | Cover plate type optical fiber grating sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220624057.5U CN203011575U (en) | 2012-11-22 | 2012-11-22 | Cover plate type optical fiber grating sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011575U true CN203011575U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220624057.5U Expired - Lifetime CN203011575U (en) | 2012-11-22 | 2012-11-22 | Cover plate type optical fiber grating sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203011575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980684A (en) * | 2012-11-22 | 2013-03-20 | 四川省电力公司宜宾电业局 | Cover plate type fiber bragg grating sensor and packaging method thereof |
-
2012
- 2012-11-22 CN CN201220624057.5U patent/CN203011575U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980684A (en) * | 2012-11-22 | 2013-03-20 | 四川省电力公司宜宾电业局 | Cover plate type fiber bragg grating sensor and packaging method thereof |
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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: 20130619 |
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| CX01 | Expiry of patent term |