CN104089725A - Temperature sensor stable in structure - Google Patents
Temperature sensor stable in structure Download PDFInfo
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- CN104089725A CN104089725A CN201410358179.8A CN201410358179A CN104089725A CN 104089725 A CN104089725 A CN 104089725A CN 201410358179 A CN201410358179 A CN 201410358179A CN 104089725 A CN104089725 A CN 104089725A
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- tube
- temperature sensor
- fiber grating
- support chip
- package tube
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Abstract
The invention discloses a temperature sensor stable in structure. The temperature sensor comprises a packaging tube and a fiber bragg grating located in the packaging tube. A protecting tube is arranged outside the packaging tube and is a metal tube with the black surface. A capillary tube is arranged outside the fiber bragg grating. A supporting piece is arranged between the fiber bragg grating and the packaging tube and provided with ventilation holes. A bonding layer is arranged between the packaging tube and the protecting tube. The temperature sensor is stable in structure and high in temperature response speed.
Description
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Technical field
The present invention relates to temperature sensor field, particularly, relate to a kind of constitutionally stable temperature sensor.
Background technology
Temperature variation is one of important load source of large bridge, often causes the distortion of bridge and the change of bridge linearity, is the important content of monitoring.Temperature monitoring can be understood the real-time change of bridge site environment temperature of living in field, and the temperature of bridge main member and gradient situation, for the force and deformation of analytical structure provides foundation, and for the correlation analysis of configuration state parameter.In the process of the temperature data monitoring to bridge, due to the importance of temperature data to bridge analysis data, existing temperature sensor, it adopts as publication No.: the structure of CN102213625 A, because its monitoring time is long, and environment of living in is severe, the performance of temperature sensor is had higher requirement.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of Stability Analysis of Structures, the constitutionally stable temperature sensor fast to temperature corresponding speed.
The present invention addresses the above problem adopted technical scheme:
Constitutionally stable temperature sensor; comprise package tube and the fiber grating that is positioned at package tube; described package tube is outside equipped with one deck protection tube; described protection tube is that metal tube and surface are black; described fiber grating is outside equipped with kapillary; between described fiber grating and package tube, be provided with support chip, on described support chip, be provided with air hole, between described package tube and protection tube, be provided with tack coat.The present invention has done on the basis of existing technology some and has improved, so that the structure of temperature sensor is more stable, to the corresponding speed of temperature, makes sooner it meet long-time use, i.e. long service life, and be suitable for the demand that rugged surroundings are used.One, arranges protection metal pipe outward at package tube, and the anti-pressure ability of protection metal pipe is strong; can protect inner package tube and fiber grating; make it be applicable to rugged environment, also can strengthen the serviceable life of temperature sensor, make it be applicable to rugged environment and use.And the surface of metal tube is black, strengthened and absorbed hot ability, reach the object of reading soon response, reach the quick response to temperature.Its two, at the outside surface of fiber grating, one deck kapillary is set, strengthen the protective effect to fiber grating.Its three, support chip supports fiber grating, makes the structure of fiber grating more stable, strengthens the stability of its structure.Because support chip is fixed on fiber grating, make fiber grating be positioned at the both sides of support chip, air hole makes the circulation of the air of support chip both sides, guarantees the accuracy of fiber grating pair temperature sense.
As preferably, the two ends of described package tube are provided with O-ring seal, and the two ends of described fiber grating are connected with connecting pipe, and described connecting pipe is respectively through O-ring seal.
Further, in order to improve its response speed to temperature, described tack coat is thermal conductivity silica gel.Thermal conductivity silica gel is good thermal conductivity, can the response of acceleration sensor to temperature.
Further, described support chip is annulus, and air hole is evenly arranged on annulus.Utilize annulus further to fix fiber grating, its Stability Analysis of Structures, than utilizing strip support chip to be fixed fiber grating, its annulus is difficult for rotating, and structure is more stable.
Further, described support chip and fiber grating are perpendicular, and are connected with reinforcement between support chip and package tube.Support chip and fiber grating are perpendicular, and utilize reinforcement to be fixed support chip, make the structure of support chip more stable, are difficult for tilting.
Further, in order to keep fiber grating stably, described support chip is positioned at the mid point of fiber grating.
To sum up, the invention has the beneficial effects as follows:
1, the present invention arranges layer of metal pipe outward at package tube, has strengthened the anti-magic ability of resistance to compression of sensor, the serviceable life that has strengthened sensor, adapt to the use of rugged surroundings, and the outside surface of metal tube is black, and it has good heat absorption capacity, has accelerated the response of sensor for temperature.
2, the present invention arranges one deck kapillary outward at fiber grating, and it is further protected fiber grating, further improves its serviceable life.
3, the present invention utilizes support chip to be fixed fiber grating, and utilizes reinforcement to reinforce support chip, has further strengthened the stability of its structure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Mark and corresponding parts title in accompanying drawing: 1, O-ring seal; 2, connecting pipe; 3, fiber grating; 4, support chip; 5, air hole; 6, kapillary; 7, package tube; 8, protection tube; 9, reinforcement.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done to detailed description further, but embodiments of the present invention are not limited to this.
Embodiment 1:
A kind of constitutionally stable temperature sensor as shown in Figure 1; comprise package tube 7 and the fiber grating 3 that is positioned at package tube 7; described package tube 7 is outside equipped with one deck protection tube 8; described protection tube 8 is that metal tube and surface are black; described fiber grating 3 is outside equipped with kapillary 6; between described fiber grating 3 and package tube 7, be provided with support chip 4, on described support chip 4, be provided with air hole 5, between described package tube 7 and protection tube 8, be provided with tack coat.
Embodiment 2:
A kind of constitutionally stable temperature sensor as shown in Figure 1, the present embodiment supplements on the basis of above-described embodiment, the two ends of described package tube 7 are provided with O-ring seal 1, and the two ends of described fiber grating 3 are connected with connecting pipe 2, and described connecting pipe 2 is respectively through O-ring seal 1.
Embodiment 3:
A kind of constitutionally stable temperature sensor as shown in Figure 1, in order further to improve its response speed to temperature, the present embodiment is optimized on the basis of above-described embodiment, and described tack coat is thermal conductivity silica gel.
Embodiment 4:
A kind of constitutionally stable temperature sensor as shown in Figure 1, in order further to strengthen the stability of sensor construction, the present embodiment is optimized on the basis of above-described embodiment, and described support chip 4 is annulus, and air hole 5 is evenly arranged on annulus.
Described support chip 4 is perpendicular with fiber grating 3, and is connected with reinforcement 9 between support chip 4 and package tube 7.
Described support chip 4 is positioned at the mid point of fiber grating 3.
As mentioned above, can realize preferably the present invention.
Claims (6)
1. constitutionally stable temperature sensor; comprise package tube (7) and be positioned at the fiber grating (3) of package tube (7); it is characterized in that: described package tube (7) is for being provided with one deck protection tube (8); described protection tube (8) is that metal tube and surface are black; described fiber grating (3) is outside equipped with kapillary (6); between described fiber grating (3) and package tube (7), be provided with support chip (4); on described support chip (4), be provided with air hole (5), between described package tube (7) and protection tube (8), be provided with tack coat.
2. constitutionally stable temperature sensor according to claim 1, it is characterized in that: the two ends of described package tube (7) are provided with O-ring seal (1), the two ends of described fiber grating (3) are connected with connecting pipe (2), and described connecting pipe (2) is respectively through O-ring seal (1).
3. constitutionally stable temperature sensor according to claim 1 and 2, is characterized in that: described tack coat is thermal conductivity silica gel.
4. constitutionally stable temperature sensor according to claim 3, is characterized in that: described support chip (4) is annulus, and air hole (5) is evenly arranged on annulus.
5. constitutionally stable temperature sensor according to claim 4, is characterized in that: described support chip (4) is perpendicular with fiber grating (3), and is connected with reinforcement (9) between support chip (4) and package tube (7).
6. constitutionally stable temperature sensor according to claim 5, is characterized in that: described support chip (4) is positioned at the mid point of fiber grating (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410358179.8A CN104089725A (en) | 2014-07-25 | 2014-07-25 | Temperature sensor stable in structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410358179.8A CN104089725A (en) | 2014-07-25 | 2014-07-25 | Temperature sensor stable in structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104089725A true CN104089725A (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410358179.8A Pending CN104089725A (en) | 2014-07-25 | 2014-07-25 | Temperature sensor stable in structure |
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| CN (1) | CN104089725A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111562031A (en) * | 2020-05-28 | 2020-08-21 | 山东省科学院激光研究所 | A fiber grating temperature sensor, array and array formation method thereof |
| CN117989995A (en) * | 2024-01-31 | 2024-05-07 | 唐山市神州科贸有限公司 | A long-distance irregular surface environmental variable sensing device and assembly method thereof |
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| WO1999002953A1 (en) * | 1997-07-07 | 1999-01-21 | Schlumberger Limited | Fiber optic pressure transducers and pressure sensing system incorporating same |
| WO2000039617A2 (en) * | 1998-12-04 | 2000-07-06 | Cidra Corporation | Tube-encased fiber grating |
| CN2621288Y (en) * | 2003-05-30 | 2004-06-23 | 欧进萍 | Distribution fiber-optical grating sensitive package temp. probe |
| CN2861997Y (en) * | 2005-11-22 | 2007-01-24 | 中国石油大学(北京) | Packaging structure of a fiber grating temperature sensor |
| CN101324189A (en) * | 2008-07-28 | 2008-12-17 | 西安石油大学 | External pressure temperature compensation high temperature and high pressure fiber grating sensor |
| CN101782442A (en) * | 2009-05-13 | 2010-07-21 | 东北大学 | Novel fiber grating pressure transducer |
| CN201628591U (en) * | 2009-10-10 | 2010-11-10 | 国网电力科学研究院 | Fiber Bragg Grating Temperature Sensor |
| CN201794579U (en) * | 2010-05-28 | 2011-04-13 | 北京康华盛鸿能源科技发展有限公司 | Packaging structure of quasi-distributed fiber grating temperature sensor |
| CN203965054U (en) * | 2014-07-25 | 2014-11-26 | 绵阳彬华科技有限公司 | Be applicable to the temperature sensor of rugged surroundings |
-
2014
- 2014-07-25 CN CN201410358179.8A patent/CN104089725A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999002953A1 (en) * | 1997-07-07 | 1999-01-21 | Schlumberger Limited | Fiber optic pressure transducers and pressure sensing system incorporating same |
| WO2000039617A2 (en) * | 1998-12-04 | 2000-07-06 | Cidra Corporation | Tube-encased fiber grating |
| CN2621288Y (en) * | 2003-05-30 | 2004-06-23 | 欧进萍 | Distribution fiber-optical grating sensitive package temp. probe |
| CN2861997Y (en) * | 2005-11-22 | 2007-01-24 | 中国石油大学(北京) | Packaging structure of a fiber grating temperature sensor |
| CN101324189A (en) * | 2008-07-28 | 2008-12-17 | 西安石油大学 | External pressure temperature compensation high temperature and high pressure fiber grating sensor |
| CN101782442A (en) * | 2009-05-13 | 2010-07-21 | 东北大学 | Novel fiber grating pressure transducer |
| CN201628591U (en) * | 2009-10-10 | 2010-11-10 | 国网电力科学研究院 | Fiber Bragg Grating Temperature Sensor |
| CN201794579U (en) * | 2010-05-28 | 2011-04-13 | 北京康华盛鸿能源科技发展有限公司 | Packaging structure of quasi-distributed fiber grating temperature sensor |
| CN203965054U (en) * | 2014-07-25 | 2014-11-26 | 绵阳彬华科技有限公司 | Be applicable to the temperature sensor of rugged surroundings |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111562031A (en) * | 2020-05-28 | 2020-08-21 | 山东省科学院激光研究所 | A fiber grating temperature sensor, array and array formation method thereof |
| CN117989995A (en) * | 2024-01-31 | 2024-05-07 | 唐山市神州科贸有限公司 | A long-distance irregular surface environmental variable sensing device and assembly method thereof |
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Application publication date: 20141008 |