CN204881906U - Concatenation type heatable high accuracy distributed optical fiber temperature sensor - Google Patents
Concatenation type heatable high accuracy distributed optical fiber temperature sensor Download PDFInfo
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- CN204881906U CN204881906U CN201520510715.1U CN201520510715U CN204881906U CN 204881906 U CN204881906 U CN 204881906U CN 201520510715 U CN201520510715 U CN 201520510715U CN 204881906 U CN204881906 U CN 204881906U
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Abstract
The utility model discloses a concatenation type heatable high accuracy distributed optical fiber temperature sensor contains bottom part, top part and a plurality of middle sections part, and each part all includes optic fibre, metallic conductor, heating wire, insulating waterproof plastic layer. The utility model discloses an each part passes through threaded connection, and optic fibre evenly twines on metallic conductor, and the heating wire runs through whole equipment part, and the optic fibre between each part and the connection of wire connect with E2000 respectively and the offering connector is connected, finally form concatenation type heatable high accuracy distributed optical fiber temperature sensor. The beneficial effects of the utility model are that adopt the industrial production, spatial resolution is high, can heat the temperature gradient of improvement sensor and medium, and engineering installation convenient and fast helps run duration maintenance management and sensor to change, can realize that the distributing type of temperature is measured and because the fluid monitoring of leakage of temperature spike principle.
Description
Technical field
The utility model relates to distributed optical fiber temperature measurement technology industry, and particularly relating to a kind of splice type can heat high-precision distributed optical fiber temperature sensor.
Background technology
Distributed optical fiber temperature sensor is the temperature sensor utilizing multimode optical fiber to be made, and optical fiber is the inductive means of sensor is also information transmission medium.The temperature information utilizing temperature acquisition system can extract Fibre Optical Sensor to measure.This sensor, for the feature of distributed measurement, has significant advantage for engineering thermometric and based on the fluid leaks monitoring of temperature tracer principle.
At present, be 0.5m for the temperature acquisition system of distributed optical fiber temperature sensor to the spatial resolution of optical fiber, measuring accuracy cannot be met and require higher scientific research and engineer applied.Often the fiber arrangement that 3m is long is solved spatial resolution problem in any as a monitoring point in engineering, the method is equivalent to quasi-distributed measurement, does not reach the effect of distributed measurement.
When distribution type fiber-optic directly applies to monitoring fluid leaks, if fluid is with ambient temperature gradient is less or leakage is less, then monitoring effect is not obvious, and easily whether to, seepage produces and judges by accident.
Optical fiber is directly arranged in engineering construction easily affects engineering construction progress, and work progress is easily to the survival rate that optical fiber generation damage influence optical fiber is buried underground.Directly directly be embedded in engineering as sensor by optical fiber, if optical fiber local damage will cause whole sensor-based system to be paralysed, it is larger that sensor maintenance will change difficulty.
The fiber arrangement process of built engineering is complicated, and sensor installation cost is high.
The utility model provides a kind of distributed optical fiber temperature sensor device and preparation method thereof, the utility model adopts suitability for industrialized production, spatial resolution is high, can carry out heating the thermograde improving sensor and medium, project installation process is convenient and swift, contributes to run duration maintenance management and replacing sensor.
Utility model content
Technical problem to be solved in the utility model is for defect involved in background technology, provides a kind of splice type to heat high-precision distributed optical fiber temperature sensor.
The utility model is for solving the problems of the technologies described above by the following technical solutions:
A kind of splice type can heat high-precision distributed optical fiber temperature sensor, comprises bottom part, top component and some stage casings parts;
Described bottom part comprises bottom metal conductor, bottom-heated wire and bottom optical fiber; One end of described bottom metal conductor is provided with screw, and one end of the other end and described bottom-heated wire is electrically connected; Described bottom optical fiber uniform winding is on bottom metal conductor, and two ends are all arranged on the screw side of bottom metal conductor; Described bottom-heated wire is arranged along bottom metal conductor axis;
Described stage casing parts comprise stage casing metallic conductor, Mid-section heating wire, stage casing first optical fiber and stage casing second optical fiber; One end of described stage casing metallic conductor is provided with and is provided with the screw identical with the screw of described bottom metal conductor with the stud that the screw of described bottom metal conductor matches, the other end; Described Mid-section heating wire is arranged along the axis of stage casing metallic conductor; Described stage casing first optical fiber to be arranged and two ends are separately positioned on the two ends of stage casing metallic conductor along the axis of stage casing metallic conductor; Described stage casing second optical fiber uniform winding is on the metallic conductor of stage casing and two ends are separately positioned on the two ends of stage casing metallic conductor;
Described stage casing first optical fiber, stage casing second optical fiber are respectively equipped with the two ends of described bottom optical fiber the optical fiber interface be connected for correspondence in one end of metallic conductor stud side, stage casing;
Described Mid-section heating wire is provided with in one end of bottom metal conductor screw side the conductor interface be connected for correspondence with bottom-heated wire in one end of metallic conductor stud side, stage casing;
Described top component comprises top metal conductor, top first heating wires, top second heating wires, top first optical fiber and top second optical fiber; One end of described top metal conductor is provided with the stud matched with the screw of described bottom metal conductor, and the other end is connected with one end of top second heating wires; Described first heating wires is arranged along the axis of described top metal conductor; Described top first optical fiber to be arranged and two ends are separately positioned on the two ends of top metal conductor along the axis of top metal conductor; Described top second optical fiber uniform winding is on top metal conductor and two ends are separately positioned on the two ends of top metal conductor;
Described top first optical fiber, top second optical fiber are respectively equipped with in one end of metallic conductor screw side, stage casing the optical fiber interface be connected for correspondence with described stage casing first optical fiber, stage casing second optical fiber in one end of top metal conductor stud side;
Described top first heating wires is provided with in one end of metal screw side, stage casing the conductor interface be connected for correspondence with described Mid-section heating wire in one end of top metal conductor stud side.
The further prioritization scheme of high-precision distributed optical fiber temperature sensor can be heated as a kind of splice type of the utility model, outside described bottom part, top component and stage casing parts, be equipped with insulating waterproof layer.
Can heat the further prioritization scheme of high-precision distributed optical fiber temperature sensor as a kind of splice type of the utility model, described optical fiber interface adopts E2000 joint.
Can heat the further prioritization scheme of high-precision distributed optical fiber temperature sensor as a kind of splice type of the utility model, described conductor interface adopts inserted sleeve.
The utility model adopts above technical scheme compared with prior art, has following technique effect:
1. the utility model adopts splicing to assemble, and the installation process simple and fast of sensor is less on the impact of engineering construction progress;
2. the utility model forms through special, have employed strict protection measure to sensor, and the link of sensor can take suitable on-link mode (OLM) according to actual requirement of engineering, at utmost can ensure the survival rate that Fibre Optical Sensor is buried underground;
3. the utility model adopts splicing to assemble, and the dismounting of all-links position is simply more convenient, if during sensor local damage, sensor maintenance changes comparatively simple and fast;
4. the utility model is shaft-like sensor, the direct placement sensor of bore mode can be adopted for built engineering, the layout installation process simple and fast of sensor, boring size can determine according to sensor external diameter, can reduce the damage of boring procedure to engineering itself to greatest extent;
5 the utility model can heat sensor, when monitoring fluid leaks, can be improved the thermograde of sensor and surrounding medium by type of heating, and make monitoring effect more obvious, monitoring result is more accurate;
6. optical fiber uniform winding can be improved the spatial resolution of sensor by the utility model on metallic conductor, sensor can be more applicable in Practical Project, reach the effect of distributed measurement completely.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model bottom part;
Fig. 2 is the structural representation of the utility model bottom part screw end;
Fig. 3 is the structural representation of the utility model stage casing parts;
Fig. 4 is the structural representation of the utility model stage casing parts stud end;
Fig. 5 is the structural representation of the utility model top component.
In figure, optical fiber bottom 1-, 2-insulating waterproof layer, 3-bottom-heated wire, 4-fibre-optical splice, 5-terminal, 6-stage casing first optical fiber and stage casing second optical fiber, 7-Mid-section heating wire, 8-top first optical fiber, 9-top second optical fiber, 10-top first heating wires, 11-top second heating wires.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail:
The utility model discloses a kind of splice type and can heat high-precision distributed optical fiber temperature sensor, comprise bottom part, top component and some stage casings parts;
As shown in Figure 1, described bottom part comprises bottom metal conductor, bottom-heated wire and bottom optical fiber; One end of described bottom metal conductor is provided with screw, and one end of the other end and described bottom-heated wire is electrically connected; Described bottom optical fiber uniform winding is on bottom metal conductor, and two ends are all arranged on the screw side of bottom metal conductor; Described bottom-heated wire is arranged along bottom metal conductor axis;
As shown in Figure 3, described stage casing parts comprise stage casing metallic conductor, Mid-section heating wire, stage casing first optical fiber and stage casing second optical fiber; One end of described stage casing metallic conductor is provided with and is provided with the screw identical with the screw of described bottom metal conductor with the stud that the screw of described bottom metal conductor matches, the other end; Described Mid-section heating wire is arranged along the axis of stage casing metallic conductor; Described stage casing first optical fiber to be arranged and two ends are separately positioned on the two ends of stage casing metallic conductor along the axis of stage casing metallic conductor; Described stage casing second optical fiber uniform winding is on the metallic conductor of stage casing and two ends are separately positioned on the two ends of stage casing metallic conductor;
As shown in Figure 2, described stage casing first optical fiber, stage casing second optical fiber are respectively equipped with the two ends of described bottom optical fiber the optical fiber interface be connected for correspondence in one end of metallic conductor stud side, stage casing;
Described Mid-section heating wire is provided with in one end of bottom metal conductor screw side the conductor interface be connected for correspondence with bottom-heated wire in one end of metallic conductor stud side, stage casing;
As shown in Figure 5, described top component comprises top metal conductor, top first heating wires, top second heating wires, top first optical fiber and top second optical fiber; One end of described top metal conductor is provided with the stud matched with the screw of described bottom metal conductor, and one end of the other end and top second heating wires is electrically connected; Described first heating wires is arranged along the axis of described top metal conductor; Described top first optical fiber to be arranged and two ends are separately positioned on the two ends of top metal conductor along the axis of top metal conductor; Described top second optical fiber uniform winding is on top metal conductor and two ends are separately positioned on the two ends of top metal conductor;
As shown in Figure 4, described top first optical fiber, top second optical fiber are respectively equipped with in one end of metallic conductor screw side, stage casing the optical fiber interface be connected for correspondence with described stage casing first optical fiber, stage casing second optical fiber in one end of top metal conductor stud side;
Described top first heating wires is provided with in one end of metal screw side, stage casing the conductor interface be connected for correspondence with described Mid-section heating wire in one end of top metal conductor stud side.
State outside bottom part, top component and stage casing parts and be equipped with insulating waterproof layer.
Described optical fiber interface adopts E2000 joint.
Described conductor interface adopts inserted sleeve.
The utility model can carry out electrified regulation by heating wires, and the threaded connector between all parts can realize metallic conductor seamless link, and seam crossing resistance change is less; Insulative water-proof plastic layer is tightly placed in optical fiber and wire external layer; Be threaded connection each sensing element and can be made into distributed optical fiber temperature sensor.
In the utility model, the diameter Relationship of metallic conductor and optical fiber should meet fiber bending radius requirement, and under static load, metallic conductor diameter is more than or equal to 10 times of fibre diameters, and under dynamic load, metallic conductor diameter is more than or equal to 20 times of fibre diameters.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the utility model.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only embodiment of the present utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. splice type can heat a high-precision distributed optical fiber temperature sensor, it is characterized in that, comprises bottom part, top component and some stage casings parts;
Described bottom part comprises bottom metal conductor, bottom-heated wire and bottom optical fiber; One end of described bottom metal conductor is provided with screw, and the other end is connected with one end of described bottom-heated wire; Described bottom optical fiber uniform winding is on bottom metal conductor, and two ends are all arranged on the screw side of bottom metal conductor; Described bottom-heated wire is arranged along bottom metal conductor axis;
Described stage casing parts comprise stage casing metallic conductor, Mid-section heating wire, stage casing first optical fiber and stage casing second optical fiber; One end of described stage casing metallic conductor is provided with and is provided with the screw identical with the screw of described bottom metal conductor with the stud that the screw of described bottom metal conductor matches, the other end; Described Mid-section heating wire is arranged along the axis of stage casing metallic conductor; Described stage casing first optical fiber to be arranged and two ends are separately positioned on the two ends of stage casing metallic conductor along the axis of stage casing metallic conductor; Described stage casing second optical fiber uniform winding is on the metallic conductor of stage casing and two ends are separately positioned on the two ends of stage casing metallic conductor;
Described stage casing first optical fiber, stage casing second optical fiber are respectively equipped with the two ends of described bottom optical fiber the optical fiber interface be connected for correspondence in one end of metallic conductor stud side, stage casing;
Described Mid-section heating wire is provided with in one end of bottom metal conductor screw side the conductor interface be connected for correspondence with bottom-heated wire in one end of metallic conductor stud side, stage casing;
Described top component comprises top metal conductor, top first heating wires, top second heating wires, top first optical fiber and top second optical fiber; One end of described top metal conductor is provided with the stud matched with the screw of described bottom metal conductor, and the other end is connected with one end of top second heating wires; Described first heating wires is arranged along the axis of described top metal conductor; Described top first optical fiber to be arranged and two ends are separately positioned on the two ends of top metal conductor along the axis of top metal conductor; Top second optical fiber uniform winding is on top metal conductor and two ends are separately positioned on the two ends of top metal conductor;
Described top first optical fiber, top second optical fiber are respectively equipped with in one end of metallic conductor screw side, stage casing the optical fiber interface be connected for correspondence with described stage casing first optical fiber, stage casing second optical fiber in one end of top metal conductor stud side;
Described top first heating wires is provided with in one end of metal screw side, stage casing the conductor interface be connected for correspondence with described Mid-section heating wire in one end of top metal conductor stud side.
2. splice type according to claim 1 can heat high-precision distributed optical fiber temperature sensor, it is characterized in that, is equipped with insulating waterproof layer outside described bottom part, top component and stage casing parts.
3. splice type according to claim 1 can heat high-precision distributed optical fiber temperature sensor, it is characterized in that, described optical fiber interface adopts E2000 joint.
4. splice type according to claim 1 can heat high-precision distributed optical fiber temperature sensor, it is characterized in that, described conductor interface adopts inserted sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520510715.1U CN204881906U (en) | 2015-07-14 | 2015-07-14 | Concatenation type heatable high accuracy distributed optical fiber temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520510715.1U CN204881906U (en) | 2015-07-14 | 2015-07-14 | Concatenation type heatable high accuracy distributed optical fiber temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204881906U true CN204881906U (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520510715.1U Withdrawn - After Issue CN204881906U (en) | 2015-07-14 | 2015-07-14 | Concatenation type heatable high accuracy distributed optical fiber temperature sensor |
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| Country | Link |
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| CN (1) | CN204881906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021309A (en) * | 2015-07-14 | 2015-11-04 | 南京航空航天大学 | Spliced heatable high-precision distributed optical fiber temperature sensor |
-
2015
- 2015-07-14 CN CN201520510715.1U patent/CN204881906U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021309A (en) * | 2015-07-14 | 2015-11-04 | 南京航空航天大学 | Spliced heatable high-precision distributed optical fiber temperature sensor |
| CN105021309B (en) * | 2015-07-14 | 2017-06-13 | 南京航空航天大学 | A kind of splice type can heat high-precision distributed optical fiber temperature sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151216 Effective date of abandoning: 20170613 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20151216 Effective date of abandoning: 20170613 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |