CN102706479B - Fiber grating temperature sensor with modularized structure - Google Patents
Fiber grating temperature sensor with modularized structure Download PDFInfo
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- CN102706479B CN102706479B CN201210216498.6A CN201210216498A CN102706479B CN 102706479 B CN102706479 B CN 102706479B CN 201210216498 A CN201210216498 A CN 201210216498A CN 102706479 B CN102706479 B CN 102706479B
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- fiber grating
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- temperature sensor
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Abstract
The invention relates to a fiber grating temperature sensor with a modularized structure, belonging to the technical field of sensors. The fiber grating temperature sensor with the modularized structure is characterized in that a fiber fixed base plate forms an eccentric narrow cuboid, and four mutually parallel baffle plates are symmetrically vertically erected on the surface of the fiber fixed base plate from both ends to the center; joint cutting holes parallel to bottom surfaces and used for being penetrated by fiber gratings are arranged on the approximate root parts of the baffle plates from side edges to positions passing through the centers of the baffle plates; the baffle plates can be cut as required above the joint cutting holes; the fiber gratings penetrating through the joint cutting holes are loose arc-shaped fiber gratings by being positioned among middle limiting platforms; a fiber grating tail fiber bonding fixed point is arranged between the baffle plates positioned on the both ends; fiber grating tail fibers from the fiber grating tail fiber bonding fixed point to an outer side extend out of the fiber grating tail fiber bonding fixed point and penetrate through the joint cutting holes positioned on an edge; and integral fiber gratings are positioned in a protecting pipe to form a fiber grating unstressed module. The invention has the positive effects of easy processing and assembly, good quality, high efficiency, suitability for batched production and a few parts because the fiber fixed base plate is integrally designed in a modularizing way.
Description
Technical field
Belong to sensor technical field, exactly relate to design and production technology for the fiber-optical grating temperature sensor of Internet of Things.
Background technology
Fiber-optical grating temperature sensor with its 1) without electrical resistivity survey, survey, essence is explosion-proof, anti-electromagnetic interference (EMI); 2) water-fast anticorrosion; 3) on-the-spot precision is high; 4) use Wavelength-encoding, can connect, in being easy to build, large-scale sensing network; 5) can long distance measurement etc. plurality of advantages, nearly ten years, at petrochemical industry oil depot fire, survey, electric power hot point inspection, heat distribution pipeline, the fields such as civil engineering work thermometric are applied widely.
At present, fiber-optical grating temperature sensor structure, mainly main to be designed to without external carbuncle fiber grating.And without the realization of external carbuncle fiber grating, adopt in two ways: it is upper that 1) fiber grating directly sticks on the substrate of general designation substrate or pipe or rod, and it is connected without constraint with outside protective pipe, guarantees and external carbuncle has nothing to do; The encapsulating structure of a Chinese patent 200510123773.X fiber-optical grating temperature sensor is exactly this kind of structure;
2) it is upper that fiber grating two ends stick on substrate or pipe or rod, and meanwhile, fiber grating is certain arcuation, thereby guarantee that fiber grating is in relaxed state, therefore, also guarantees with external carbuncle irrelevant.201010141147.4 1 kinds of fiber-optical grating temperature sensors of Chinese patent are Typical Representatives of this structure.
Above in described two kinds of methods, 2) in fiber grating affected by substrate and adhesive material little, therefore, there is more good performance.Yet, 201010141147.4 1 kinds of fiber-optical grating temperature sensors of Chinese patent, this class formation seems simply, in actual production is manufactured, but needs the auxiliary realization of more frock.For example, fiber grating should two ends and substrate bonding fix, make again fiber grating be arcuation.This need to use complicated fixture that fiber grating is arched upward, then gluing is clamped in two ends and fix.Production practices are found, the fiber-optical grating temperature sensor of this structure, and operation is numerous and diverse, produces easy damaged fiber grating in assembling, causes product quality accident, is not suitable for batch production.
Summary of the invention
The invention provides a kind of operation simple, be easy to processing, be convenient to produce, conveniently install and use, be applicable to the fiber-optical grating temperature sensor of a kind of modular construction of batch production.
The technical scheme that the present invention takes is:
A fiber-optical grating temperature sensor for modular construction, comprises fiber fix substrate, and its scheme is: fiber fix substrate is flat-shaped slat rectangular parallelepiped, vertically establishes symmetrically four baffle plates parallel to each other as limiting stand on its face from two ends to centre; At the nearly root of baffle plate, from lateral edges to baffle plate, cross center, all have a parallel bottom surface for by the joint-cutting lyriform pore of optical fiber; Above joint-cutting lyriform pore, baffle plate can cut as required; Through the fiber grating of joint-cutting lyriform pore, locate realizing middle limiting interstation for the lax circular-arc fiber grating that is; Between the baffle plate at two ends, there is fiber grating tail optical fiber bonding point of fixity; Fixed point is stretched out by point of fixity toward the fiber grating tail optical fiber in outside, and through edge joint-cutting lyriform pore; Within its whole place outside protective pipe, form the unstressed module of fiber grating; Double-end fiber grating tail optical fiber joins with the optical fiber stern fast that is fastened on optical cable connector, optical cable connector and the optical fiber stern fast concrete application of can putting into practice of wrapping of protection tail cover.
Good effect of the present invention is:
Implement after the present invention, because fiber fix substrate is to adopt modular Integral design, part is few, and simply, quality is good for processing, assembling, and efficiency is high, is applicable to producing in enormous quantities.
Accompanying drawing explanation
Fig. 1, be centre section structural representation of the present invention,
Fig. 2, look and schematic side view for the master of fiber fix substrate.
Embodiment
Now the invention will be further described by reference to the accompanying drawings,
A fiber-optical grating temperature sensor for modular construction, comprises fiber fix substrate, and its formation is: fiber fix substrate 5 is flat-shaped slat rectangular parallelepipeds, vertically establishes symmetrically four baffle plates parallel to each other as limiting stand 8 on its face from two ends to centre; At the nearly root of baffle plate, from lateral edges to baffle plate, cross center, all have a parallel bottom surface for by the joint-cutting lyriform pore 9 of optical fiber; Above joint-cutting lyriform pore, baffle plate 10 can cut as required; Through the fiber grating 6 of joint-cutting lyriform pore, locate realizing middle limiting interstation for the lax circular-arc fiber grating that is; Between the baffle plate at two ends, there is fiber grating tail optical fiber bonding point of fixity 7; Fixed point is stretched out by point of fixity toward the fiber grating tail optical fiber in outside, and through edge joint-cutting lyriform pore; Within its whole place outside protective pipe 4, form the unstressed module of fiber grating; Double-end fiber grating tail optical fiber joins with the optical fiber stern fast 1 that is fastened on optical cable connector 3, protection tail cover 2 optical cable connector and the optical fiber stern fast 3 concrete application of can putting into practice of wrapping.
It is shaped as arbitrary shape four described baffle plates, and described arbitrary shape is semicircle shape, or trapezoidal shape, or oblong-shaped, or triangular shape.
Described top baffle plate can cut as required, is the finedraw the first half at longitudinal four limiting stands, and the part of longitudinally pruning at least stays with joint-cutting lyriform pore bottom and is greater than 0.1 millimeter of interval.
Claims (2)
1. the fiber-optical grating temperature sensor of a modular construction, comprise fiber fix substrate, it is characterized in that: fiber fix substrate (5) is flat-shaped slat rectangular parallelepiped, on its face, from two ends to centre, vertically establish symmetrically four baffle plates parallel to each other as limiting stand (8); At the nearly root of baffle plate, from lateral edges to baffle plate, cross center, all have a parallel bottom surface for by the joint-cutting lyriform pore (9) of optical fiber; Baffle plate above joint-cutting lyriform pore (10) can cut as required; Through the fiber grating (6) of joint-cutting lyriform pore, locate realizing middle limiting interstation for the lax circular-arc fiber grating that is; Between the baffle plate at two ends, there is fiber grating tail optical fiber bonding point of fixity (7); Fixed point is stretched out by point of fixity toward the fiber grating tail optical fiber in outside, and through edge joint-cutting lyriform pore; Within its whole place's outside protective pipe (4), form the unstressed module of fiber grating; Double-end fiber grating tail optical fiber joins with the optical fiber stern fast (1) that is fastened on optical cable connector (3), protection tail cover (2) optical cable connector and optical fiber stern fast (3) the concrete application of can putting into practice of wrapping.
2. the fiber-optical grating temperature sensor of a kind of modular construction according to claim 1, is characterized in that: it is shaped as arbitrary shape four described baffle plates, and described arbitrary shape is semicircle shape, or trapezoidal shape, or oblong-shaped, or triangular shape.
3. the fiber-optical grating temperature sensor of a kind of modular construction according to claim 1, it is characterized in that: described top baffle plate can cut as required, be the finedraw the first half at longitudinal four limiting stands, the part of longitudinally pruning, stays with joint-cutting lyriform pore bottom and is greater than 0.1 millimeter of interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210216498.6A CN102706479B (en) | 2012-06-28 | 2012-06-28 | Fiber grating temperature sensor with modularized structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210216498.6A CN102706479B (en) | 2012-06-28 | 2012-06-28 | Fiber grating temperature sensor with modularized structure |
Publications (2)
| Publication Number | Publication Date |
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| CN102706479A CN102706479A (en) | 2012-10-03 |
| CN102706479B true CN102706479B (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210216498.6A Expired - Fee Related CN102706479B (en) | 2012-06-28 | 2012-06-28 | Fiber grating temperature sensor with modularized structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103674323B (en) * | 2013-12-25 | 2017-01-11 | 武汉理工大学 | Optical fiber grating temperature sensor for mine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971226A (en) * | 2005-11-22 | 2007-05-30 | 中国石油大学(北京) | Package structure of optical fiber grating temperature sensor |
| CN101324189A (en) * | 2008-07-28 | 2008-12-17 | 西安石油大学 | External pressure type temperature compensation high-temperature high-pressure optical fiber grating sensor |
| CN101526339A (en) * | 2009-04-22 | 2009-09-09 | 东南大学 | Temperature self-compensation fiber grating displacement sensor |
| CN201628591U (en) * | 2009-10-10 | 2010-11-10 | 国网电力科学研究院 | Optical fiber grating temperature sensor |
| CN201935753U (en) * | 2010-12-31 | 2011-08-17 | 聚光科技(杭州)股份有限公司 | Fiber grating temperature sensor |
| CN102213625A (en) * | 2010-04-07 | 2011-10-12 | 上海启鹏工程材料科技有限公司 | Fiber bragg grating temperature sensor |
| CN202710207U (en) * | 2012-06-28 | 2013-01-30 | 上海谱蔚物联网有限公司 | Optical fiber grating temperature sensor having modular structure |
-
2012
- 2012-06-28 CN CN201210216498.6A patent/CN102706479B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971226A (en) * | 2005-11-22 | 2007-05-30 | 中国石油大学(北京) | Package structure of optical fiber grating temperature sensor |
| CN101324189A (en) * | 2008-07-28 | 2008-12-17 | 西安石油大学 | External pressure type temperature compensation high-temperature high-pressure optical fiber grating sensor |
| CN101526339A (en) * | 2009-04-22 | 2009-09-09 | 东南大学 | Temperature self-compensation fiber grating displacement sensor |
| CN201628591U (en) * | 2009-10-10 | 2010-11-10 | 国网电力科学研究院 | Optical fiber grating temperature sensor |
| CN102213625A (en) * | 2010-04-07 | 2011-10-12 | 上海启鹏工程材料科技有限公司 | Fiber bragg grating temperature sensor |
| CN201935753U (en) * | 2010-12-31 | 2011-08-17 | 聚光科技(杭州)股份有限公司 | Fiber grating temperature sensor |
| CN202710207U (en) * | 2012-06-28 | 2013-01-30 | 上海谱蔚物联网有限公司 | Optical fiber grating temperature sensor having modular structure |
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| CN102706479A (en) | 2012-10-03 |
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