CN105223671B - Adjustable capillary packaging system and method at least one fiber grating - Google Patents
Adjustable capillary packaging system and method at least one fiber grating Download PDFInfo
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- CN105223671B CN105223671B CN201410291494.3A CN201410291494A CN105223671B CN 105223671 B CN105223671 B CN 105223671B CN 201410291494 A CN201410291494 A CN 201410291494A CN 105223671 B CN105223671 B CN 105223671B
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- optical fiber
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- 239000000835 fiber Substances 0.000 title claims abstract description 110
- 238000004806 packaging method and process Methods 0.000 title claims description 26
- 238000000034 method Methods 0.000 title claims description 16
- 210000001736 capillary Anatomy 0.000 claims abstract description 144
- 239000013307 optical fiber Substances 0.000 claims abstract description 82
- 238000005538 encapsulation Methods 0.000 claims abstract description 17
- 230000007704 transition Effects 0.000 claims description 24
- 239000003292 glue Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 6
- 239000000806 elastomer Substances 0.000 claims description 4
- 229920006335 epoxy glue Polymers 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000007767 bonding agent Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000013519 translation Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 210000005239 tubule Anatomy 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 206010034960 Photophobia Diseases 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 208000013469 light sensitivity Diseases 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000382 optic material Substances 0.000 description 1
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- 229920002647 polyamide Polymers 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Light Guides In General And Applications Therefor (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a kind of for carrying out the adjustable sealing assembling device of capillary encapsulation at least one fiber grating comprising support and package assembling, package assembling include: sliding rail, sliding rail can it is releasable, install on the support to variable orientation；First optic fibre fixing device is releasably disposed at the first end of sliding rail；Second optic fibre fixing device is releasably disposed at the second end opposite with the first end of sliding rail；At least two capillary pipe fixing devices, it is releasably disposed on sliding rail, between the first optic fibre fixing device and the second optic fibre fixing device, optical fiber is enabled to sequentially pass through the first optic fibre fixing device, the capillary being fixed on at least two capillarys pipe fixing device and the second optic fibre fixing device so that the end at least one predetermined grid region of the optical fiber to be placed in capillary；Multiple movable blocks are respectively used to assist for each of the first optic fibre fixing device, the second optic fibre fixing device and at least two capillarys pipe fixing device being fixed on sliding rail.
Description
Technical field
The present invention relates to the adjustable capillary packaging systems and packaging method at least one fiber grating, and more
More particularly to the packaging system and method for flexibly being encapsulated to single fibre grating and fiber grating string both ends.
Background technique
Fiber grating is the light sensitivity using fiber optic materials, and incident light is concerned with field pattern by the method for ultraviolet photoetching
Fibre core is written, the refractive index periodic generated in fibre core along fibre core axial direction changes, to form the phase light in permanent space
Grid, effect are substantially (transmission or reflection) filter or reflecting mirror that a narrowband is formed in fibre core.When a beamwidth light
When composing light by fiber grating, the wavelength for meeting fiber grating Bragg condition will generate reflection, remaining wavelength penetrates optical fiber
Grating continues to transmit.Since fiber grating has, small in size, splice loss, splice attenuation is small, be compatible with optical fiber entirely, can be embedded to intellectual material, anti-
The advantages that burn into electromagnetism interference, and its resonance wavelength is to the variation ratio of the external environments such as temperature, strain, refractive index, concentration
It is more sensitive, therefore be widely used in fiber optic communication and sensory field.
The outer diameter (fibre core and covering be only 125 μm) of single mode optical fiber is very thin, itself shear resistance is very poor, in addition grating
Ultraviolet light makes the optical fiber of no coating become fragile when write-in, therefore is easy to brittle failure.Moisture etc. extraneous simultaneously also easily sends out light characteristic
It is raw to change, therefore must be encapsulated after grating writing, it could apply.Optical fiber Bragg grating encapsulation mainly considers how to protect very thin optical fiber
Grating, and be integrated in structure and accurately measured.
For different measurement requests, need to develop corresponding packaged type to adapt to different base structures, it is general at present
Have all over the packaged type used: the direct embedding material in grid region；It pastes on the surface of the material and in capillary；And grid region both ends clamping
The modes such as fixed.Wherein, several before how much all to cause fiber grating chirp, subsequent demodulation instrument Wavelength demodulation is influenced, but
It is that influence can be reduced using the modes such as stress are applied to grating according to the requirement of practical application precision, and the both ends side of gripping
Formula can the maximum primitive character for retaining fiber grating.
Existing Chinese patent 201310238250.4 proposes that one kind can apply prestressing force to fiber grating and carry out capillary
The device of formula sensitized reaction, structure are that dovetail guide is arranged on pedestal, and left slider, right sliding block and centre are arranged on dovetail guide
Sliding block is arranged left fine tuning translation stage on left slider, right fine tuning translation stage is set on right sliding block, left clamping is arranged on left fine tuning translation stage
Right holding shim is arranged on right fine tuning translation stage in gasket, cooperates generate magnetic force to be strong magnets with left and right holding shim, in
Between setting lifting rod set on sliding block, the elevating lever that elevating lever set setting connect with objective table, setting a pair of capillary on objective table
Fixing clamp.The advantages of patent is can to guarantee fiber grating in capillary well and in axis pair, and disadvantage is to expand
Property it is not strong, it is impossible to be used in fiber grating and is embedded in bonding agent, although applying to grating by multi fiber grating and multiple capillary encapsulation
Stress is added, but has often been difficult to ensure that bonding agent uniform fold around grid region, easily causes chirp.
Summary of the invention
In order to overcome the above problem of the prior art, the present invention provides a kind of for the adjustable of at least one fiber grating
Capillary packaging system is capable of the every of both ends to single fibre grating and fiber grating string (including multiple grid regions i.e. on optical fiber)
The both ends of a grating carry out capillary encapsulation, and encapsulate apart from adjustable.
The packaging system includes support and package assembling, and the package assembling includes:
Sliding rail, the sliding rail can it is releasable, install to the support to variable orientation, to be in vertical side in sliding rail
To when to capillary carry out injecting glue；
First optic fibre fixing device is releasably disposed at the first end of the sliding rail；
Second optic fibre fixing device is releasably disposed at the second end opposite with the first end of the sliding rail；
At least two capillary pipe fixing devices, are releasably provided to the sliding rail, fix positioned at first optical fiber
Between device and the second optic fibre fixing device, optical fiber is enabled to sequentially pass through first optic fibre fixing device, be fixed to institute
At least capillary of capillary pipe fixing device and second optic fibre fixing device are stated, by least one of the optical fiber
The end in predetermined grid region is placed in the capillary；And
Multiple movable blocks are respectively used to auxiliary for first optic fibre fixing device, the second optic fibre fixing device and described
Each of at least two capillary pipe fixing devices is fixed to the sliding rail,
Wherein, the optical fiber includes n predetermined grid regions, and n+1 capillary pipe fixing device is provided on the sliding rail,
For fixing n+1 capillary, wherein n is the integer more than or equal to 1, and
Wherein, at least two capillarys pipe fixing device can move freely in sliding rail, to adjust encapsulation distance.
The packaging system does not need for be embedded in bonding agent or other materials in optical fiber grid region, it is only necessary to by packaged capillary
Pipe string solves the problems, such as fiber grating chirp, it has compact-sized, spirit by being mechanically fastened on sensor structure
Active strong, simple operation and other advantages.
As a preferred embodiment, the sliding rail, which is equipped with, extends lengthwise into institute from the first end along the sliding rail
State second end the first card slot and the second card slot and between the first end and second end along the long hole longitudinally extended,
Second card slot is parallel with first card slot and the long hole and is connected to, be located at first card slot and the long hole it
Between, first optic fibre fixing device, the second optic fibre fixing device and at least two capillarys pipe fixing device each energy
Enough slideably, it is inserted partially into first card slot, and the multiple movable block can be slidably inserted into described second
Card slot.
Preferably, first card slot can be C-shaped section slot, V-arrangement section slot, and second card slot is square-section
Slot.
In one embodiment of the present invention, first optic fibre fixing device and the second optic fibre fixing device are each
Including optical fiber fixed block, transition block and briquetting, the optical fiber fixed block includes the first part for engaging first card slot
With the second part for fixing the optical fiber, the first part of the optical fiber fixed block is equipped with indent, and the first end
Be equipped with corresponding fixation hole in second end, fastener passes through the fixation hole and the tapped through hole of the movable block is pressed in institute
It states each optical fiber fixed block is fixed to the sliding rail on indent, the second part of the optical fiber fixed block is from the cunning
Rail stretches out, and the optical fiber can be placed between the second part and the transition block, and the briquetting is placed in the transition
For the optical fiber to be fixed to the second part on block.
Further, the second part is fixed to by screw as a kind of example, the briquetting and the transition block.
Preferably, the briquetting is made of hard material, and the transition block is made of elastomer resistant to high temperature.
In another embodiment of the invention, the capillary pipe fixing device includes capillary fixed block, the hair
Tubule fixed block includes first part for engaging first card slot and for the second part of fixed capillary, the hair
The first part of tubule fixed block is equipped with indent, and fastener withstands on described across the tapped through hole of the long hole and the movable block
So that the capillary fixed block is fixed to the sliding rail on the indent of capillary fixed block；The of the capillary fixed block
Two parts are stretched out from the sliding rail, and the second part of the capillary fixed block is equipped on the second part for connecing
Receive capillary capillary slot and fixation hole for fixed capillary.
As a kind of example, the fixation hole that screw can pass through the capillary fixed block pushes down the capillary.
In another embodiment of the invention, fastener is screw.
In further embodiment of the invention, the support includes pedestal and upright fixed link, the fixation
Bar is fixed to the pedestal, and the package assembling is releasably secured to the fixed link by attachment device.
The present invention also provides using above-mentioned packaging system come at least one fiber grating carry out capillary encapsulation method,
It is comprised the following steps that
Package assembling is horizontally fixed to support；
Capillary is fixed to capillary pipe fixing device；
So that optical fiber is passed through the first optic fibre fixing device, capillary and the second optic fibre fixing device, makes the optical fiber at least
The end in one predetermined grid region is placed in the capillary；
The first end of optical fiber is fixed to the first end of sliding rail by the first optic fibre fixing device；
Apply pretightning force from the second end of sliding rail to the second end of the optical fiber, it then will by the second optic fibre fixing device
The second end of the optical fiber is fixed to the second end of sliding rail；
Change the orientation of the package assembling in order to the capillary injecting glue；And
Glue described in hot setting is encapsulating the capillary to the end in the predetermined grid region.
Optionally, this method further includes the steps that the coat for peeling the predetermined length of the end in the predetermined grid region off, example
Such as when coat is the acrylate-coated layer.
Alternatively, the coat of some types does not need to peel off and can directly encapsulate, such as when the coat is polyamides
When imines coat.
As an implementation, the optical fiber includes the predetermined grid regions n, to form fiber grating string, wherein n be greater than
Or the integer equal to 1 is correspondingly provided with n+1 capillary pipe fixing device on the sliding rail, for fixing n+1 capillary.
Preferably, the glue is epoxy glue, and the pretightning force is applied by adding counterweight in the second end of the optical fiber
Add.
Change the package assembling as a preferred implementation manner, is oriented to vertical direction in order to the capillary
Pipe injecting glue.
Further, the method also includes (FBG) demodulator is accessed to the first end of the optical fiber to monitor the step of grating wavelength
Suddenly.
Detailed description of the invention
With reference to attached drawing, the preferred embodiment of the present invention is described in more detail below, in which:
Fig. 1 is the signal of the capillary packaging system for fiber grating of a preferred embodiment according to the present invention
Perspective view；
Fig. 2 is the stereoscopic schematic diagram of sliding rail shown in FIG. 1；
Fig. 3 is the stereoscopic schematic diagram of the first optic fibre fixing device shown in FIG. 1；
Fig. 4 is the stereoscopic schematic diagram of capillary pipe fixing device shown in FIG. 1；
Fig. 5 is the second optic fibre fixing device shown in FIG. 1；And
Fig. 6 is the stereoscopic schematic diagram of movable block shown in Fig. 1.
Same reference numerals used in all figures are used to refer to for the same or similar element.
Specific embodiment
With reference to the accompanying drawing, embodiments of the present invention are further described.
Fig. 1 shows a kind of preferred embodiment of capillary packaging system of the invention.
As shown in Figure 1, capillary packaging system includes support 1 and package assembling 2, wherein support 1 is including pedestal 11 and admittedly
Fixed pole 12, and package assembling 2 then includes sliding rail 21,24, two the first optic fibre fixing device 22, the second optic fibre fixing device capillarys
Pipe fixing device 23 and the movable block 25 being contained in sliding rail 21.First optic fibre fixing device 22, the second optic fibre fixing device
24 and each of two capillary pipe fixing devices 23 be furnished with a movable block 25.The package assembling is solid by attachment device 3
Determine onto fixed link 12.Attachment device 3 is configured to allow for package assembling 2 that can change orientation ground and is releasably fixed at solid
In fixed pole 12, such as it is fixed in fixed link 12 with being horizontally oriented or being vertically oriented.For example, attachment device 3 is by screw (in figure
It is not shown) it is fixed at the appropriate height of fixed link 2, then, package assembling 2 passes through the screw hole 216 being arranged on sliding rail 21
(being shown in FIG. 2) and the screw (not shown) to match are fixed in attachment device 3.Therefore, it by unloading screw, seals
Arrangement 2 can be unloaded from attachment device 3, and be fixed to connection dress again as needed to be horizontally oriented or be vertically oriented
It sets on 3.Certainly, in other embodiment, package assembling 2 can be also releasably secured in other ways in attachment device 3, example
Such as in a manner of clamping or grafting.
In the example depicted in fig. 1, fixed link 12 is fixed on pedestal 11 also with screw.It will be apparent that fixed link 12
It can also be fixed on the pedestal 11 using other way.
Fig. 2 shows a kind of more details of embodiment of sliding rail 21 shown in FIG. 1.
As shown in Fig. 2, sliding rail 21 has first end 217 and opposite second end 218, and sliding rail 21 is equipped with from first end
217 along the first card slot 211 for extending lengthwise into second end 218 of sliding rail and between first end 217 and second end 218 along institute
State the long hole 214 longitudinally extended.As shown, the first card slot 211 is on a side of sliding rail and first end and second end
All have opening.Fixation hole 216, such as threaded hole are additionally provided on sliding rail 21, for sliding rail 21 to be fixed to connection structure 3,
Connection structure is, for example, transfer block.The cross section of first card slot 211 can be C-shaped, V-arrangement or other suitable shapes.
Further, sliding rail 21 is equipped with the second card slot 212, and the second card slot 212 prolongs from first end 217 along the longitudinal direction of sliding rail
Second end 218, and and connection parallel with the first card slot 211 are reached, for being received to the first optic fibre fixing device 22, the second light
The movable block 25 of each configuration of the fixed device 24 of fibre and capillary pipe fixing device 23.As shown, the second card slot is transversal
Face is generally rectangular shaped, naturally it is also possible to be other shapes.Movable block can arbitrarily move in the second card slot, with each fixed block
With use, the flexibility of encapsulation distance ensure that.For example, Fig. 6 shows one embodiment of movable block 25 comprising a screw thread
Through-hole 251.
Sliding rail 21 is equipped with fixation hole 213 in first end 217, for fixing the first optic fibre fixing device 22；In second end
218 are equipped with fixation hole 215, for fixing the second optic fibre fixing device 24.
Fig. 3 shows a preferred embodiment of the first optic fibre fixing device 22.First optic fibre fixing device 22 arrangement
In the first end 217 of sliding rail 21.
As shown in figure 3, the first optic fibre fixing device 22 includes the first optical fiber fixed block 221, First Transition block 222 and first
Briquetting 223.
First optical fiber fixed block 221 includes first part 2211 for engaging first card slot 211 and for fixing
The second part 2212 of optical fiber.First part 2211 is equipped with indent 2213.When the first part is sliding from the first end of sliding rail 21
When being inserted into the first card slot 211 dynamicly, screw can pass through the fixation hole 213 in the first end 217 of sliding rail 21 and be placed in the
The tapped through hole 251 of movable block 25 in two draw-in groove 212 can withstand the indent 2213, thus by tightening screw for first
Optical fiber fixed block 221 is fixed on sliding rail 21.
As shown, set on second part 2212 there are two fixation hole 2214, correspondingly, First Transition block 222 and the
One briquetting 223 is also respectively equipped with two fixation holes 2221 and 2231.When First Transition block 222 and the first briquetting 223 are sequentially placed
When on second part 2212, fixation hole 2221,2231,2214 is aligned respectively, so as to screw by First Transition block 222 and
One briquetting 223 is fixed on second part 2212.In use, optical fiber is fixed on second part 2212 and First Transition block 222
Between.The selection of First Transition block 222 is made of elastomer resistant to high temperature, may be, for example, the materials such as silica gel, rubber.Therefore, first
Transition block 222 can be effectively protected fiber grating.
Fig. 4 shows a preferred embodiment of capillary pipe fixing device 23.
As shown in figure 4, capillary pipe fixing device 23 includes capillary fixed block 231.Capillary fixed block 231 includes being used for
Engage the first part 2311 of the first card slot 211 and the second part 2312 for fixed capillary.First part 2311 is in face
Indent 2313 is equipped with to the side of the long hole 214 of sliding rail 21.When capillary fixed block 231 is slidably inserted into the first card slot
When being placed in 211 in desired position, fastener, such as screw (not shown), across long hole 214 and movable block 25
Tapped through hole 251 withstands the indent 2313, so that capillary fixed block 231 is fixed on sliding rail 21 by tightening screw.
The second part 2312 of capillary fixed block 231 on it be equipped with for receive the capillary slot 2315 of capillary with
And the fixation hole 2314 for fixed capillary.The shape and size of capillary slot 2315 and the encapsulation size of capillary
Match, width is less than capillary width, and glue when injecting glue is avoided to flow on the contact surface between capillary and capillary slot, causes glue solid
Change postcapillary and capillary slot sticks together.Screw passes through fixation hole 2314 and pushes down capillary, so that capillary is fixed on
On capillary fixed block 231.It should be noted that one end of screw and capillary contact described here should be tack.
The quantity of capillary fixed block can be multiple according to application: if encapsulation single fibre grating, two, respectively
Two capillaries for fixed encapsulation grating both ends；If necessary to encapsulate multi fiber grating (fiber grating string), then n+1 is needed
A capillary fixed block, wherein n is the number of grating, for the integer more than or equal to 1.Capillary fixed block can be in sliding rail
It moves freely, to play the role of adjusting encapsulation distance.
Fig. 5 shows a preferred embodiment of the second optic fibre fixing device 24.Second optic fibre fixing device 24 arrangement
In the second end 218 of sliding rail 21.
Second optic fibre fixing device 24 is similar with the first optic fibre fixing device 22.
As shown in figure 5, the second optic fibre fixing device 24 includes the second optical fiber fixed block 241, the second transition block 242 and second
Briquetting 243.
Second optical fiber fixed block 241 includes first part 2411 for engaging the first card slot 211 and for fixing optical fiber
Second part 2412.First part 2411 is equipped with indent 2413.When the first part from the second end of sliding rail 21 slidably
When being inserted into the first card slot 211, screw can pass through the fixation hole 215 in the second end 218 of sliding rail 21 and be placed in the second card
The tapped through hole 251 in movable block 25 in slot 212, can withstand the indent 2413, thus by tightening screw for the second light
Fine fixed block 241 is fixed on sliding rail 21.
As shown, set on second part 2412 there are two fixation hole 2414, correspondingly, the second transition block 242 and the
Two briquettings 243 are also respectively equipped with two fixation holes 2421 and 2431.When the second transition block 242 and the second briquetting 243 are sequentially placed
When on second part 2412, fixation hole 2421,2431,2414 is aligned respectively, so as to screw by the second transition block 242 and
Two briquettings 243 are fixed on second part 2412.In use, optical fiber is fixed on second part 2412 and the second transition block 242
Between.The second equally selection of transition block 242 is made of elastomer resistant to high temperature, may be, for example, the materials such as silica gel, rubber.Therefore,
Second transition block 242 can also be effectively protected fiber grating.
The assembling of packaging system described above and packaging method are as described below.
Before the capillary encapsulation of fiber grating starts, the assembly working needed includes: to be horizontally fixed on sliding rail admittedly
On fixed column；Transition block and briquetting are successively put on the first and second optical fiber fixed blocks respectively, and is screwed, but does not need to twist
Tightly；Then by the first, second optical fiber fixed block, capillary fixed block and the movable block (quantity of the corresponding three kinds of fixed blocks of its quantity
Summation) it is respectively implanted in the first card slot and the second card slot；Then pass through the fixation hole and long hole at sliding rail both ends respectively with screw, twist
Upper movable block simultaneously withstands fixed block indent, as long as optical fiber fixed block and capillary fixed block can be fixed by tightening screw.Capillary
The quantity of the grating that the particular number of pipe fixed block then encapsulates as needed determines.
For example, as shown in Figure 1, two capillary pipe fixing devices of setting.In this way, altogether by 4 movable blocks 25 merging the
In two draw-in groove 212, and two optical fiber fixed blocks 221,241 and two capillary fixed blocks 231 are placed in the first card slot 211.
Then it can be carried out encapsulation work.Capillary first has to be placed in the slot of capillary fixed block, is pushed down with screw,
Each capillary fixed block fixes a capillary.
The certain length coat for peeling the both ends in each grid region of optical fiber off, then sequentially passes through the first light for fiber grating
Fine fixed block, two or more capillary fixed blocks and the second optical fiber prestretching fixed block, the part for removing coat is set completely
In capillary.Then, the first optical fiber fixed block is tightened, and will access solution by the fixed optical fiber end of the first optical fiber fixed block
Instrument is adjusted, to monitor optic fiber grating wavelength.The other end of optical fiber then from the second optical fiber fixed block, (fix by also referred to as optical fiber prestretching
Block) it pulls out, for adding counterweight to optical fiber, give fiber grating one pretightning force, this is set as needed, is not needed very
Greatly.Then, the briquetting screw of optical fiber prestretching fixed block is tightened, and unloads counterweight.Then sliding rail is switched to vertical direction, with right
Capillary carries out injecting glue and sliding rail is transformed into horizontal direction after all filling epoxy in all capillaries, and it is solid to remove attachment device
Determine screw.Entire sliding rail is horizontally put into incubator, is heated at high temperature to adhesive curing.Sliding rail from incubator taking-up after, unload capillary and
Multiple capillaries can be encapsulated in multiple fiber grating both ends by fiber grating.
For example, the parameter that capillary uses is: Φ 2*0.5, long 15mm, 304 steel, 2.Adjust the position of capillary fixed block
It sets, 2 capillaries is respectively placed in two fixed block slots, are pushed down with screw, capillary two ends are exposed, two capillary phases
Close both ends distance is 20mm.The coat of fiber grating is acrylate, respectively peels optical fiber grid region both ends the coating of off 8cm length
Layer is left the long 26mm in grid region, fiber grating is sequentially passed through optical fiber fixed block, capillary fixed block and optical fiber prestretching fixed block,
It is completely disposed at removing coating interval in capillary, optical fiber fixed block is tightened, this end intelligent acess (FBG) demodulator, monitors fiber grating
Wavelength, other end optical fiber come out from optical fiber prestretching fixed block, to give fiber grating one pretightning force plus 20g counterweight to optical fiber,
Stablize to optic fiber grating wavelength, tightens optical fiber prestretching fixed block screw, unload counterweight.Sliding rail is transformed into vertical direction, in hair
Injecting glue is carried out in tubule, to all fill epoxy glue in two capillaries, sliding rail is gone into horizontal direction, attachment device is removed and fixes
Entire sliding rail level is put into incubator by screw, is heated at high temperature to adhesive curing and is taken out sliding rail, unloads capillary and fiber grating, i.e.,
2 capillaries can be encapsulated in 1 fiber grating both ends.
The solution have the advantages that: the present invention is solid using sliding rail and optical fiber fixed block, capillary fixed block, optical fiber prestretching
Determine block realize multi fiber grating multiple capillary encapsulation, do not need for be encapsulated in bonding agent in grid region, be not in chirp phenomenon and
Wave distortion phenomenon ensure that the repeatability and the linearity of sensor.The quantity of capillary fixed block can be with flexible choice, capillary
The position of pipe fixed block can be adjusted according to application requirement, and fiber grating can be effectively ensured in capillary by machining accuracy
Well with axis centering.Fiber grating multiple capillary packaging technology can be simplified；Pretightning force can applied to fiber grating
In the case where realize hot setting encapsulation；It is simple with structure, it is small in size, it is easy to operate, strong flexibility, it is at low cost the advantages that.
After remembeing these examples and other embodiments disclosed herein, those skilled in the art will appreciate that this
Other feature and advantage of invention.It will consequently be understood that the present invention is not limited to disclosed specific embodiment, and
The modification and other embodiments are intended to be included within the scope of this invention.Certainly, the present invention is not limited by aforementioned disclosure,
It is only limited on the contrary by the appended claims and its legal equivalents.
Claims (17)
1. a kind of adjustable capillary packaging system at least one fiber grating comprising support and package assembling,
It is characterized in that, the package assembling includes:
Sliding rail, the sliding rail can it is releasable, install to the support to variable orientation, thus when sliding rail is in vertical direction
Injecting glue is carried out to capillary；
First optic fibre fixing device is releasably disposed at the first end of the sliding rail；
Second optic fibre fixing device is releasably disposed at the second end opposite with the first end of the sliding rail；
At least two capillary pipe fixing devices, are releasably provided to the sliding rail, are located at first optic fibre fixing device
And second between optic fibre fixing device, enable optical fiber sequentially pass through first optic fibre fixing device, be fixed to it is described extremely
The capillary and second optic fibre fixing device of few two capillary pipe fixing devices, by least one of the optical fiber
The end in predetermined grid region is placed in the capillary；And
Multiple movable blocks, be respectively used to auxiliary by first optic fibre fixing device, the second optic fibre fixing device and it is described at least
Each of two capillary pipe fixing devices is fixed to the sliding rail,
Wherein, the optical fiber includes n predetermined grid regions, and n+1 capillary pipe fixing device is provided on the sliding rail, is used to solid
Determine n+1 capillary, wherein n is the integer more than or equal to 1, and
Wherein, at least two capillarys pipe fixing device can move freely in sliding rail, to adjust encapsulation distance.
2. packaging system according to claim 1, it is characterised in that:
The sliding rail is equipped with from the first end along the first card slot and second for extending lengthwise into the second end of the sliding rail
Card slot and between the first end and second end along the long hole longitudinally extended, second card slot and first card
Slot and the long hole are parallel and are connected to, between first card slot and the long hole, first optic fibre fixing device, the
Two optic fibre fixing devices and at least two capillarys pipe fixing device each can slideably, be inserted partially into described
One card slot, and the multiple movable block can be slidably inserted into second card slot.
3. packaging system according to claim 2, it is characterised in that: first optic fibre fixing device and the second optical fiber are solid
Determining device each includes optical fiber fixed block, transition block and briquetting, and the optical fiber fixed block includes for engaging described first
The first part of the first part of card slot and second part for fixing the optical fiber, the optical fiber fixed block is equipped with indent,
And corresponding fixation hole is equipped in the first end and second end, fastener passes through the fixation hole and the movable block
Tapped through hole is pressed on the indent so that each optical fiber fixed block is fixed to the sliding rail, and the of the optical fiber fixed block
Two parts are stretched out from the sliding rail, and the optical fiber can be placed between the second part and the transition block, and the pressure
Block is placed on the transition block for the optical fiber to be fixed to the second part.
4. packaging system according to claim 3, it is characterised in that: the briquetting and the transition block are fixed by screw
To the second part.
5. packaging system according to claim 3, it is characterised in that: the briquetting is made of hard material, and the mistake
Block is crossed to be made of elastomer resistant to high temperature.
6. packaging system according to claim 2, it is characterised in that: the capillary pipe fixing device includes that capillary is fixed
Block, the capillary fixed block include first part for engaging first card slot and for second of fixed capillary
Point, the first part of the capillary fixed block is equipped with indent, and fastener passes through the long hole and the screw thread of the movable block is logical
Hole is withstood on the indent of the capillary fixed block so that the capillary fixed block is fixed to the sliding rail；The capillary
The second part of fixed block is stretched out from the sliding rail, and the second part of the capillary fixed block is on the second part
Equipped with for receiving the capillary slot of capillary and for the fixation hole of fixed capillary.
7. packaging system according to claim 6, it is characterised in that: screw can pass through consolidating for the capillary fixed block
Determine pore pressure residence and states capillary.
8. packaging system according to claim 2, it is characterised in that: first card slot can be C-shaped section slot, V-arrangement
Section slot.
9. packaging system according to claim 2, it is characterised in that: second card slot is square-section slot.
10. packaging system according to claim 1, it is characterised in that: the support includes pedestal and upright fixed link,
The fixed link is fixed to the pedestal.
11. packaging system according to claim 10, it is characterised in that: the package assembling is releasable by attachment device
Ground is fixed to the fixed link.
12. a kind of carry out capillary at least one fiber grating using packaging system described in any one of claim 1-11
The method of pipe encapsulation comprising following step:
Package assembling is horizontally fixed to support；
Capillary is fixed to capillary pipe fixing device；
So that optical fiber is passed through the first optic fibre fixing device, capillary and the second optic fibre fixing device, makes at least one of the optical fiber
The end in predetermined grid region is placed in the capillary；
The first end of optical fiber is fixed to the first end of sliding rail by the first optic fibre fixing device；
Apply pretightning force from the second end of sliding rail to the second end of the optical fiber, it then will be described by the second optic fibre fixing device
The second end of optical fiber is fixed to the second end of sliding rail；
Change the orientation of the package assembling in order to the capillary injecting glue；And
Glue described in hot setting is encapsulating the capillary to the end in the predetermined grid region.
13. according to the method for claim 12, which is characterized in that the glue is epoxy glue.
14. according to the method for claim 12, which is characterized in that the pretightning force passes through in the second end of the optical fiber
In addition counterweight applies.
15. according to the method for claim 12, which is characterized in that further include the first end that (FBG) demodulator is accessed to the optical fiber
With the step of monitoring grating wavelength.
16. according to the method for claim 12, which is characterized in that change the package assembling be oriented to vertical direction with
Convenient for the capillary injecting glue.
17. according to the method for claim 12, which is characterized in that further include peel off the predetermined grid region end it is predetermined
The step of coat of length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410291494.3A CN105223671B (en) | 2014-06-26 | 2014-06-26 | Adjustable capillary packaging system and method at least one fiber grating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410291494.3A CN105223671B (en) | 2014-06-26 | 2014-06-26 | Adjustable capillary packaging system and method at least one fiber grating |
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| Publication Number | Publication Date |
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| CN105223671A CN105223671A (en) | 2016-01-06 |
| CN105223671B true CN105223671B (en) | 2019-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410291494.3A Active CN105223671B (en) | 2014-06-26 | 2014-06-26 | Adjustable capillary packaging system and method at least one fiber grating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2648463Y (en) * | 2003-05-19 | 2004-10-13 | 欧进萍 | Capillary sealer for fibre-optical and grating |
| CN103149631A (en) * | 2013-03-28 | 2013-06-12 | 杨顺 | Ribbon fiber equipment made of scattered core fiber and method for making ribbon fiber |
| CN103309002A (en) * | 2013-06-17 | 2013-09-18 | 南昌大学 | Capillary sensitivity enhancing packaging device capable of applying prestress to fiber grating |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001042143A (en) * | 1999-08-02 | 2001-02-16 | Sumitomo Electric Ind Ltd | Optical equipment having optical fiber diffraction grating |
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2014
- 2014-06-26 CN CN201410291494.3A patent/CN105223671B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2648463Y (en) * | 2003-05-19 | 2004-10-13 | 欧进萍 | Capillary sealer for fibre-optical and grating |
| CN103149631A (en) * | 2013-03-28 | 2013-06-12 | 杨顺 | Ribbon fiber equipment made of scattered core fiber and method for making ribbon fiber |
| CN103309002A (en) * | 2013-06-17 | 2013-09-18 | 南昌大学 | Capillary sensitivity enhancing packaging device capable of applying prestress to fiber grating |
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| CN105223671A (en) | 2016-01-06 |
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