CN103309002A - Capillary sensitivity enhancing packaging device capable of applying prestress to fiber grating - Google Patents
Capillary sensitivity enhancing packaging device capable of applying prestress to fiber grating Download PDFInfo
- Publication number
- CN103309002A CN103309002A CN2013102382504A CN201310238250A CN103309002A CN 103309002 A CN103309002 A CN 103309002A CN 2013102382504 A CN2013102382504 A CN 2013102382504A CN 201310238250 A CN201310238250 A CN 201310238250A CN 103309002 A CN103309002 A CN 103309002A
- Authority
- CN
- China
- Prior art keywords
- capillary
- fiber grating
- translation stage
- slider
- rubber layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Optical Transform (AREA)
Abstract
The invention discloses a device capable of applying prestress on a fiber grating and packaging the fiber grating in a capillary sensitivity enhancing manner. The device is structurally characterized in that a dovetail guide rail is arranged on a base, a left slider, a right slider and a middle slider are arranged on the dovetail guide rail, a left fine adjustment translation stage is arranged on the left slider, a right fine adjustment translation stage is arranged on the right slider, a left clamping gasket is arranged on the left fine adjustment translation stage, a right clamping gasket is arranged on the right fine adjustment translation stage, powerful magnets, the left clamping gasket and the right clamping gasket are matched with one another to generate magnetic force, a lifting rod sleeve is arranged on the middle slider, a lifting rod which is connected with an object stage is arranged on the lifting rod sleeve, and a pair of capillary fixing clips is arranged on the object stage. The device can guarantee that the fiber grating is effectively axially centered in a capillary; a capillary packaging process for the fiber grating can be simplified; the magnitude of the prestress can be continuously controlled. The device has the advantages of simple structure, easiness in operation and the like. Besides, after the device is used packaging the fiber grating in a capillary manner, a phenomenon of chirp and a phenomenon of waveform distortion can be effectively prevented, and the repeatability and the linearity of a sensor are guaranteed.
Description
Technical field
The present invention relates to a kind ofly can apply prestressed capillary type enhanced sensitivity packaging system to fiber grating.
Background technology
Since the people such as U.S. united technology center G. Meltz in 1989 utilized holographic interferometry making fiber grating to succeed, both at home and abroad in the optical fiber fabrication technology, large quantity research had been carried out in the aspects such as demodulation techniques.Particularly in recent years, fiber grating was rapidly developed in fields such as sensing technologies, and application prospect is extensive.Fiber-optic grating sensor is based on the centre wavelength drift that measurand causes optical grating reflection spectrum or transmitted spectrum, can realize measurement to measured physical quantity by detecting wavelength shift, it is a kind of wavelength-modulated type sensor, have that anti-electromagnetic interference capability is strong, volume is little, lightweight, simple in structure, be convenient to many advantages such as multiplexing, can form intelligent distributed sensor networks.Overlay on measured material inside when naked grating buries, to many physical quantitys such as temperature, stress, strain, pressure, can realize multiple spot distribution, simultaneously differentiation, real-time online and long term monitoring.Yet temperature, the strain sensitivity of naked grating are low, can not satisfy the sensing requirement, therefore will manage to improve temperature, strain sensitivity.Simultaneously, write at the single mode silica fibre of removing coat because fiber grating is ultraviolet light, tiny matter is crisp, frangibility; Although the chemical property of silica fibre is more stable, it is that it is antiacid and the alkali resistant ability is all relatively poor.In order to improve the adaptability of fiber grating under the rugged surroundings of practical application, need to carry out effective packaging protection to it equally.
The packaged fiber bragg grating center wavelength of the enhanced sensitivity to external world variation of environmental variance (temperature, strain, stress etc.) is very responsive.If but encapsulating structure is unstable in the optical fiber Bragg grating encapsulation process, might cause the suffered field of force of fiber grating unstable, there is again the cross-sensitivity of temperature and strain, thereby causes temperature sensing inaccurate.Therefore, in order to eliminate the unstable field of force to the impact of fiber bragg grating center wavelength, when carrying out the packaging system structural design, must guarantee the stability of encapsulating structure.
Be in relatively freely state when fiber grating is not subjected to prestress, have certain bending, and crooked direction is uncertain, this just causes between fiber grating and the capillary zinc pipe is a kind of unsettled relation.If adopt the packaged types such as polymer cure stickup, because the polymer cure process will shrink.As not applying certain prestress to fiber grating, then chirp phenomenon easily appears in the fiber grating after the encapsulation; Even chirp phenomenon do not occur after the encapsulation, also can under low temperature environment, because the polymkeric substance shrinkage drives the fiber grating axial shrinkage and produces chirp phenomenon, cause stability and the repeated decrease of sensor, also brought difficulty to demodulation.If adopt and to apply prestressed packaging system, in encapsulation process, fiber grating is applied prestress, can guarantee the stable relation between fiber grating and the capillary zinc pipe, prevented that simultaneously it from shrinking with polymer cure, avoid chirp phenomenon, thereby be conducive to the stable and good repeatability of wavelength temperature characterisitic.
Existing Chinese 03132410.X discloses a kind of fibre-optical raster blood capillary sealing process and isolated plant, specifically comprise base, at base vertical support frame be installed, cross bar is installed on the vertical support frame, the end of cross bar is equipped with the kapillary geometrical clamp, the upper end of vertical support frame arranges the adjustable metal sheet, have groove on the adjustable metal sheet, and be provided with the fastening rubber that matches with Cao, it also comprises the vacuum extractor that is connected on the kapillary lower end.This device provides a kind of simple in structure, compact optical fiber raster capillary packed scheme, and the weak point of its existence has: in the encapsulation process, can not apply prestress to fiber grating, can't regulate making fiber grating and kapillary axis inregister; After the encapsulation, fiber grating easily produces and warbles and the wavelength distortion phenomenon.
Existing Chinese patent 200810150477.2 discloses a kind of encapsulation apparatus for exerting prestress of optical fiber grating sensor, specifically be included in be provided with on the base with move left left mount pad that platform connects, with the right mount pad that has transfer table to connect, left mount pad and right mount pad between be provided with lifting platform bar cover, move left left elevating lever cover is set on the platform, move right and right elevating lever cover is set on the platform, move left platform and move right and also be provided with translation throw-over gear on the platform, left elevating lever puts the left elevating lever that the top connects with left holding frame is set.Right elevating lever puts the right elevating lever that the top connects with right holding frame is set, and the lifting platform bar puts the lifting platform bar that the upper end connects with platform is set.Wherein said right holding frame structure is: frame bottom is arranged on right elevating lever upper end, respectively is provided with the adjustment screw rod that connects with grip block on the support front and back sides, and the medial surface of two grip blocks is provided with elastomeric pad.The installation of left holding frame is similar with it, and identical with right holding frame structure.It is a kind of simple in structure that this device provides, and takes up room little, can effectively apply prestressed encapsulation scheme to fiber grating, and the weak point of its existence has: applicable packaged type is limited, and for example tube-packaged is without the mechanism of fixed capillary; The worktable horizontal direction is fixed, and can't satisfy the movement requirement of some packaged type.
Summary of the invention
The object of the present invention is to provide a kind ofly can apply prestressed capillary type enhanced sensitivity packaging system to fiber grating, it has compact conformation, the simple to operate and accurate advantage of control.
The present invention is achieved like this, it comprises base, dovetail guide, left slider, left fine setting translation stage, left holding shim, the elastic rubber layer I, the elastic rubber layer II, powerful Left magnet, fiber grating, the capillary zinc pipe, right strong magnets, the elastic rubber layer III, the elastic rubber layer IV, right holding shim, right fine setting translation stage, right slide block, objective table, right kapillary geometrical clamp, the elevating lever cover, regulate fixture, elevating lever, intermediate slider and left kapillary geometrical clamp, the top that it is characterized in that base is connected with dovetail guide, intermediate slider is connected to the middle part of dovetail guide, left slider and right slide block are symmetrical about intermediate slider, and be connected to the both sides of dovetail guide, the top of left slider links to each other with left fine setting translation stage, the top of left fine setting translation stage is left holding shim, the upper surface of left holding shim is provided with the elastic rubber layer I, the elastic rubber layer I is close to the elastic rubber layer II that is positioned at powerful Left magnet lower surface, the top of right slide block links to each other with right fine setting translation stage, the top of right fine setting translation stage is right holding shim, the upper surface of right holding shim is provided with the elastic rubber layer III, the elastic rubber layer III is close to the elastic rubber layer IV that is positioned at right strong magnets lower surface, the elevating lever cover is connected to intermediate slider top, the bottom of elevating lever is connected in the elevating lever cover by regulating fixture, the upper end of elevating lever connects objective table, objective table is provided with the capillary zinc pipe, be provided with fiber grating in the capillary zinc pipe, the capillary zinc pipe is fixed on the objective table by right kapillary geometrical clamp and left kapillary geometrical clamp;
Described left slider, right slide block and intermediate slider bottom all have dovetail groove, and the sidepiece of left slider, right slide block and intermediate slider is equipped with stop screw; The physical dimension of described left fine setting translation stage and right fine setting translation stage is identical, and is in vertical distribution.The dovetail groove of left slider, right slide block and intermediate slider bottom can be mobile at dovetail guide, realizes accurately control slide position; By dovetail groove and the interlock of dovetail boss, restriction slide block axial rotation;
Slide block side limited location screw, by stop screw, the restriction slide block moves axially, thereby realizes slide block fixing at guide rail.The physical dimension of left fine setting translation stage and right fine setting translation stage is identical, is mounted to vertical distribution, and left fine setting translation stage is realized axial adjustment, and right fine setting translation stage is realized lateral adjustments;
Left fine setting translation stage is offered threaded hole, and left holding shim is fixed on the left fine setting translation stage by sunk screw, and both length and width are identical, and is highly different; Right fine setting translation stage is offered threaded hole, and right holding shim is fixed on the right fine setting translation stage by sunk screw, and both length and width are identical, and is highly different; Left holding shim and right holding shim length and width are with highly identical;
Left holding shim and right holding shim are ferrimagnet, can produce magnetic force with magnet, realization is to the clamping of fiber grating, offer multiple mounting hole on the objective table, left kapillary geometrical clamp and right kapillary geometrical clamp are bolted on objective table, as required dismounting kapillary geometrical clamp or other clamp devices are installed are used for other packaged types.
Technique effect of the present invention is: the present invention adopts the magnetic force that produces between magnet and the ferritic stainless steel, and is combined with elastic caoutchouc realization grip optical fibers grating, and simple to operate, repeatability is strong; Used elastic caoutchouc is perfluoroelastomers, has high temperature resistant (327 ℃), chemical solvent resistance energy and high-cleanness characteristic, and the applicable working temperature scope is wide, can use in 0 ℃ ~ 327 ℃ temperature ranges; Can guarantee fiber grating in kapillary well with axis centering; Can simplify fibre-optical raster blood capillary sealing process; Can realize stepless control external force fiber grating being applied realization hot setting encapsulation in the prestressed situation, regulate continuously prestress; Have simple in structurely, volume is little, and is easy to operate, low cost and other advantages.With the present invention fiber grating is carried out capillary packed, can effectively prevent chirp phenomenon and wave form distortion phenomenon, guaranteed repeatability and the linearity of sensor.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the present of invention.
Fig. 2 is the partial top view of structure of the present invention.
Fig. 3 is that schematic diagram is regulated in displacement of the present invention.
In the drawings, 1, base 2, dovetail guide 3, left slider 4, left fine setting translation stage 5, left holding shim 6, elastic rubber layer I 7, elastic rubber layer II 8, powerful Left magnet 9, fiber grating 10, capillary zinc pipe 11, right strong magnets 12, elastic rubber layer III 13, elastic rubber layer IV 14, right holding shim 15, right fine setting translation stage 16, right slide block 17, objective table 18, right kapillary geometrical clamp 19, elevating lever cover 20, regulate fixture 21, elevating lever 22, intermediate slider 23, left kapillary geometrical clamp.
Embodiment
As depicted in figs. 1 and 2, the present invention is achieved like this, it comprises base 1, dovetail guide 2, left slider 3, left fine setting translation stage 4, left holding shim 5, elastic rubber layer I 6, elastic rubber layer II 7, powerful Left magnet 8, fiber grating 9, capillary zinc pipe 10, right strong magnets 11, elastic rubber layer III 12, elastic rubber layer IV 13, right holding shim 14, right fine setting translation stage 15, right slide block 16, objective table 17, right kapillary geometrical clamp 18, elevating lever cover 19, regulate fixture 20, elevating lever 21, intermediate slider 22 and left kapillary geometrical clamp 23, its design feature is that the top of base 1 is connected with dovetail guide 2, intermediate slider 22 is connected to the middle part of dovetail guide 2, left slider 3 and right slide block 16 are about intermediate slider 22 symmetries, and be connected to the both sides of dovetail guide 2, the top of left slider 3 links to each other with left fine setting translation stage 4, the top of left fine setting translation stage 4 is left holding shim 5, the upper surface of left holding shim 5 is provided with elastic rubber layer I 6, elastic rubber layer I 6 is close to the elastic rubber layer II 7 that is positioned at powerful Left magnet 8 lower surfaces, the top of right slide block 16 links to each other with right fine setting translation stage 15, the top of right fine setting translation stage 15 is right holding shim 14, the upper surface of right holding shim 14 is provided with elastic rubber layer III 12, elastic rubber layer III 12 is close to the elastic rubber layer IV 13 that is positioned at right strong magnets 11 lower surfaces, elevating lever cover 19 is connected to intermediate slider 22 tops, the bottom of elevating lever 21 is connected in the elevating lever cover 19 by regulating fixture 20, the upper end of elevating lever 21 connects objective table 17, objective table 17 is provided with capillary zinc pipe 10, be provided with fiber grating 9 in the capillary zinc pipe 10, capillary zinc pipe 10 is fixed on the objective table 17 by right kapillary geometrical clamp 18 and left kapillary geometrical clamp 23;
When installing and using, dovetail guide 2 installation positions are the dovetail boss, with scale, by left slider 3, right slide block 16 and the intermediate slider 22 of dovetail boss mounting strap dovetail groove.Be threaded connection fixedly elevating lever cover 19 on the intermediate slider 22, elevating lever overlaps the 19 interior elevating levers 21 that arrange, play adjusting objective table 17 function of height, be conducive to fiber grating 9 and capillary zinc pipe 10 axis centerings, fixing objective table 17 on the elevating lever 21, a pair of right kapillary geometrical clamp 18 and left kapillary geometrical clamp 23 are installed on the objective table 17, are used for fixedly capillary zinc pipe 10.Left slider 3 and right slide block 16 structures are identical, but installation direction is different, and both become vertical distribution, and the installation of this position relationship can realize the two dimensional surface adjusting, reduces installation cost.Be threaded connection the left fine setting translation stage 4 of installation and right fine setting translation stage 15 at left and right slide block, be threaded connection on the left fine setting translation stage 4 and be fixed with left holding shim 5, left fine setting translation stage 4 is threaded connection and is fixed with right holding shim 14, be stained with elastic rubber layer with 502 glue on the pad, what cooperate generation magnetic force with ferritic stainless steel is powerful Left magnet 8 and powerful Left magnet 11, and the magnet lower surface is lined with elastic rubber layer equally.During encapsulation, the first step is clamped in fiber grating 10 two ends on the left and right slide block by magnet, and with the grating position capillary zinc pipe 10 of packing into, capillary zinc pipe 10 is fixed on the left and right kapillary geometrical clamp of objective table 17; Second step, coarse adjustment two ends slide block checks whether fiber grating is parallel with rail axis, if not parallel, can regulate right fine setting translation stage, makes it parallel; The 3rd step, check fiber grating whether with capillary zinc pipe axis centering, if misalign, regulate elevating lever, make itself and capillary zinc pipe axis centering; In the 4th step, according to required prestress, displacement calculating is regulated left fine setting translation stage and is made FBG be in predetermined tensile stress state; In the 5th step, utilize modification acrylate that encapsulation is gluedd joint at capillary zinc pipe two ends, the not filling-modified acrylate vacant state in grating place in the pipe; The 6th step allowed the modification acrylate natural condensation solidify, and treated that modification acrylate solidifies fully namely to have finished whole encapsulation process.
As shown in Figure 3, apply prestress; The method of calculated prestressing force is,
E 1 ,
E 2 Be respectively grating and with the elastic modulus of cladded-fiber,
r 1 ,
r 2 Be respectively grating and with the radius of cladded-fiber.The displacement adjustment process is finely tuned the adjusting displacement of translation stage as shown in Figure 1
DL, this moment, the elongation of grating was
DL 1 , the length of fiber grating between the left and right fine setting translation stage
L, FBG grating partial-length is
L 1 , because grating and band cladded-fiber axial tension equate namely have
, the substitution parameter gets
Again because
, (2-2)
Merge (2-1) formula and (2-2) formula get
Then the calculation of Prestress formula is
Wherein
Be constant, then prestress
With
DLLinear.
Claims (3)
1. one kind can apply prestressed capillary type enhanced sensitivity packaging system to fiber grating, it comprises base, dovetail guide, left slider, left fine setting translation stage, left holding shim, the elastic rubber layer I, the elastic rubber layer II, powerful Left magnet, fiber grating, the capillary zinc pipe, right strong magnets, the elastic rubber layer III, the elastic rubber layer IV, right holding shim, right fine setting translation stage, right slide block, objective table, right kapillary geometrical clamp, the elevating lever cover, regulate fixture, elevating lever, intermediate slider and left kapillary geometrical clamp, the top that it is characterized in that base is connected with dovetail guide, intermediate slider is connected to the middle part of dovetail guide, left slider and right slide block are symmetrical about intermediate slider, and be connected to the both sides of dovetail guide, the top of left slider links to each other with left fine setting translation stage, the top of left fine setting translation stage is left holding shim, the upper surface of left holding shim is provided with the elastic rubber layer I, the elastic rubber layer I is close to the elastic rubber layer II that is positioned at powerful Left magnet lower surface, the top of right slide block links to each other with right fine setting translation stage, the top of right fine setting translation stage is right holding shim, the upper surface of right holding shim is provided with the elastic rubber layer III, the elastic rubber layer III is close to the elastic rubber layer IV that is positioned at right strong magnets lower surface, the elevating lever cover is connected to intermediate slider top, the bottom of elevating lever is connected in the elevating lever cover by regulating fixture, the upper end of elevating lever connects objective table, objective table is provided with the capillary zinc pipe, be provided with fiber grating in the capillary zinc pipe, the capillary zinc pipe is fixed on the objective table by right kapillary geometrical clamp and left kapillary geometrical clamp.
2. as claimed in claim 1ly a kind ofly can apply prestressed capillary type enhanced sensitivity packaging system to fiber grating, it is characterized in that described left slider, right slide block and intermediate slider bottom all have dovetail groove, the sidepiece of left slider, right slide block and intermediate slider is equipped with stop screw.
3. as claimed in claim 1ly a kind ofly can apply prestressed capillary type enhanced sensitivity packaging system to fiber grating, it is characterized in that the physical dimension of described left fine setting translation stage and right fine setting translation stage is identical, and be in vertical distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102382504A CN103309002A (en) | 2013-06-17 | 2013-06-17 | Capillary sensitivity enhancing packaging device capable of applying prestress to fiber grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102382504A CN103309002A (en) | 2013-06-17 | 2013-06-17 | Capillary sensitivity enhancing packaging device capable of applying prestress to fiber grating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103309002A true CN103309002A (en) | 2013-09-18 |
Family
ID=49134413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102382504A Pending CN103309002A (en) | 2013-06-17 | 2013-06-17 | Capillary sensitivity enhancing packaging device capable of applying prestress to fiber grating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103309002A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722081A (en) * | 2013-12-14 | 2014-04-16 | 苏州博汇精密机械有限公司 | Die for U-shaped parts |
| CN104596436A (en) * | 2015-01-12 | 2015-05-06 | 武汉理工大学 | Pasting and fixing device and method for magnetic-type optical fiber and optical grating strain sensor |
| CN105223671A (en) * | 2014-06-26 | 2016-01-06 | 同方威视技术股份有限公司 | For adjustable kapillary packaging system and the method for at least one fiber grating |
| CN105651319A (en) * | 2016-01-05 | 2016-06-08 | 武汉理工大学 | Packaging device for applying constant pre-stress on fiber grating sensor |
| CN105739021A (en) * | 2016-05-03 | 2016-07-06 | 石家庄铁路职业技术学院 | Optical fiber uniform stress applying device |
| CN106064358A (en) * | 2016-06-25 | 2016-11-02 | 上海大学 | Fiber grating shape sensor fixture |
| CN106112261A (en) * | 2016-08-01 | 2016-11-16 | 中国核动力研究设计院 | In a kind of quartz glass capillary, filled gold belongs to the long packaging technology of control and auxiliary mould thereof |
| CN109261454A (en) * | 2018-10-29 | 2019-01-25 | 湖北世纪伟业防腐科技有限公司 | A kind of lining plastic equipment and lining plastic method |
| CN111006700A (en) * | 2019-08-15 | 2020-04-14 | 南京邮电大学 | Fiber grating packaging device and packaging method |
| CN111623811A (en) * | 2020-04-22 | 2020-09-04 | 西北大学 | High-temperature-resistant fiber grating sensor packaging device and method |
| CN114488448A (en) * | 2022-03-08 | 2022-05-13 | 南方科技大学 | Multi-fiber packaging device and multi-fiber packaging method |
| CN115178436A (en) * | 2022-07-05 | 2022-10-14 | 广州大学 | Adhesive dispensing and curing device for multi-section capillary tube packaged fiber grating string |
| CN116880002A (en) * | 2023-09-05 | 2023-10-13 | 深圳市比洋光通信科技股份有限公司 | High-yield fiber grating capillary tube type sensitization packaging device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324448A (en) * | 2008-07-28 | 2008-12-17 | 西安石油大学 | Encapsulation apparatus for exerting prestress of optical fiber grating sensor |
| CN101413831A (en) * | 2008-11-29 | 2009-04-22 | 大连理工大学 | Method for packaging sensitized optical fiber grating temperature sensor |
| CN101832808A (en) * | 2010-04-15 | 2010-09-15 | 北京交通大学 | Taper chirped fiber grating liquid level sensor based on reflection spectrum bandwidth detection |
| CN101865735A (en) * | 2010-05-28 | 2010-10-20 | 北京康华盛鸿能源科技发展有限公司 | Packaging structure and method of quasi-distributed fiber grating temperature sensor |
-
2013
- 2013-06-17 CN CN2013102382504A patent/CN103309002A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324448A (en) * | 2008-07-28 | 2008-12-17 | 西安石油大学 | Encapsulation apparatus for exerting prestress of optical fiber grating sensor |
| CN101413831A (en) * | 2008-11-29 | 2009-04-22 | 大连理工大学 | Method for packaging sensitized optical fiber grating temperature sensor |
| CN101832808A (en) * | 2010-04-15 | 2010-09-15 | 北京交通大学 | Taper chirped fiber grating liquid level sensor based on reflection spectrum bandwidth detection |
| CN101865735A (en) * | 2010-05-28 | 2010-10-20 | 北京康华盛鸿能源科技发展有限公司 | Packaging structure and method of quasi-distributed fiber grating temperature sensor |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722081A (en) * | 2013-12-14 | 2014-04-16 | 苏州博汇精密机械有限公司 | Die for U-shaped parts |
| CN105223671A (en) * | 2014-06-26 | 2016-01-06 | 同方威视技术股份有限公司 | For adjustable kapillary packaging system and the method for at least one fiber grating |
| CN105223671B (en) * | 2014-06-26 | 2019-03-19 | 同方威视技术股份有限公司 | Adjustable capillary packaging system and method at least one fiber grating |
| CN104596436B (en) * | 2015-01-12 | 2018-05-01 | 武汉理工大学 | Magnetic-type fiber Bragg grating strain sensor pastes fixing device and method |
| CN104596436A (en) * | 2015-01-12 | 2015-05-06 | 武汉理工大学 | Pasting and fixing device and method for magnetic-type optical fiber and optical grating strain sensor |
| CN105651319A (en) * | 2016-01-05 | 2016-06-08 | 武汉理工大学 | Packaging device for applying constant pre-stress on fiber grating sensor |
| CN105739021A (en) * | 2016-05-03 | 2016-07-06 | 石家庄铁路职业技术学院 | Optical fiber uniform stress applying device |
| CN106064358A (en) * | 2016-06-25 | 2016-11-02 | 上海大学 | Fiber grating shape sensor fixture |
| CN106112261B (en) * | 2016-08-01 | 2017-11-10 | 中国核动力研究设计院 | Filled gold category controls long packaging technology and its auxiliary mould in a kind of quartz glass capillary |
| CN106112261A (en) * | 2016-08-01 | 2016-11-16 | 中国核动力研究设计院 | In a kind of quartz glass capillary, filled gold belongs to the long packaging technology of control and auxiliary mould thereof |
| CN109261454A (en) * | 2018-10-29 | 2019-01-25 | 湖北世纪伟业防腐科技有限公司 | A kind of lining plastic equipment and lining plastic method |
| CN109261454B (en) * | 2018-10-29 | 2024-03-26 | 湖北世纪伟业防腐科技有限公司 | Plastic lining equipment and plastic lining method |
| CN111006700A (en) * | 2019-08-15 | 2020-04-14 | 南京邮电大学 | Fiber grating packaging device and packaging method |
| CN111623811A (en) * | 2020-04-22 | 2020-09-04 | 西北大学 | High-temperature-resistant fiber grating sensor packaging device and method |
| CN114488448A (en) * | 2022-03-08 | 2022-05-13 | 南方科技大学 | Multi-fiber packaging device and multi-fiber packaging method |
| CN114488448B (en) * | 2022-03-08 | 2023-12-01 | 南方科技大学 | Multi-fiber packaging device and multi-fiber packaging method |
| CN115178436A (en) * | 2022-07-05 | 2022-10-14 | 广州大学 | Adhesive dispensing and curing device for multi-section capillary tube packaged fiber grating string |
| CN116880002A (en) * | 2023-09-05 | 2023-10-13 | 深圳市比洋光通信科技股份有限公司 | High-yield fiber grating capillary tube type sensitization packaging device |
| CN116880002B (en) * | 2023-09-05 | 2023-12-12 | 深圳市比洋光通信科技股份有限公司 | High-yield fiber grating capillary tube type sensitization packaging device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103309002A (en) | Capillary sensitivity enhancing packaging device capable of applying prestress to fiber grating | |
| CN101324448B (en) | Encapsulation apparatus for exerting prestress of optical fiber grating sensor | |
| CN102519499B (en) | Based on the quasi-distributed sensor of micro-structure fiber optic Fabry-Perot cavity quasi | |
| US7702190B2 (en) | Fiber Bragg grating sensor | |
| CN105651319A (en) | Packaging device for applying constant pre-stress on fiber grating sensor | |
| CN102878943B (en) | The multiple sensing system of fiber strain integration calibrating installation of large scale and method | |
| CN109099946B (en) | Fiber grating sensor packaging device and method | |
| CN102681086B (en) | Fiber bragg grating producing device capable of controlling wavelengths | |
| CN103105138A (en) | Fiber bragg grating strain sensitivity calibration device and method | |
| CN2833523Y (en) | Fiber grating sensor capable of simultaneously and respectively measuring pressure and temperature | |
| CN1743795A (en) | Optical fiber grating displacement sensor | |
| KR20180071070A (en) | Apparatus for measuring convergence using fbg sensor and sensitivity and durability regulation method thereof | |
| CN202057432U (en) | Fiber bragg grating sensor | |
| CN202066479U (en) | Linear fiber bragg grating displacement meter | |
| Di Sante et al. | Temperature-compensated fibre Bragg grating‐based sensor with variable sensitivity | |
| CN107024234A (en) | The packaging system and method for a kind of fiber-optic grating sensor | |
| CN107202545A (en) | A kind of temperature self-compensation type fiber Bragg grating strain sensor | |
| CN201707036U (en) | Differential type fiber grating strain transducer | |
| CN107817061B (en) | Packaging process method of novel FBG temperature sensor based on low-melting-point glass | |
| CN102853856A (en) | Method for eliminating chirping phenomenon of fiber grating sensor | |
| Wu et al. | A temperature self-compensation submicron displacement FBG sensor with tilt parallel-suspended dual-optical fibers | |
| CN105241572A (en) | Monometallic fiber grating temperature sensor with double-sensitivity effect and wide range and packaging method thereof | |
| CN201449306U (en) | Fiber bragg grating pressure sensor | |
| CN110375663B (en) | Fiber grating strain measuring device with adjustable measuring range | |
| CN104792267A (en) | High-sensitivity fiber Bragg grating displacement sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130918 |