CN108363143A - Optical fiber splicer identifies method, its system and the special aligning holder of optical fiber - Google Patents
Optical fiber splicer identifies method, its system and the special aligning holder of optical fiber Download PDFInfo
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- CN108363143A CN108363143A CN201810171360.6A CN201810171360A CN108363143A CN 108363143 A CN108363143 A CN 108363143A CN 201810171360 A CN201810171360 A CN 201810171360A CN 108363143 A CN108363143 A CN 108363143A
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- optical fiber
- rod
- hole
- shell
- splicer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2555—Alignment or adjustment devices for aligning prior to splicing
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2551—Splicing of light guides, e.g. by fusion or bonding using thermal methods, e.g. fusion welding by arc discharge, laser beam, plasma torch
Abstract
The present invention gives a kind of methods that optical fiber splicer identifies optical fiber, include the following steps：Optical fiber is placed on aligning holder；Optical fiber is set to be moved along the optical axis direction of optical fiber splicer object lens by aligning holder；Object lens and CCD acquire signal, judge the type of optical fiber.The device being multiplexed on existing welder, without increasing focus adjusting mechanism.The present invention gives a kind of optical fiber splicer identification fibre system, including aligning module, acquisition module, comparison module, selecting module, transmission module.The present invention gives special aligning holder in a kind of method that realizing above-mentioned optical fiber splicer identification optical fiber again；Adjustment hole there are two being opened in shell；The elastic component of adjusting part is provided with through-hole on shell, and elastic component is extended with swing rod, and drive link runs through through-hole and adjustment hole, and steel ball is placed on drive link and swing rod, and fiber orientation block is fixed on swing rod, and fiber orientation block is provided with limiting groove.This aligning holder drives optical fiber to complete movement, meets the design requirement of the method for identification optical fiber.
Description
Technical field
The present invention relates to a kind of methods that optical fiber splicer identifies optical fiber.
The invention further relates to the systems that a kind of optical fiber splicer identifies optical fiber.
The present invention further relates to a kind of special aligning holder of the method for optical fiber splicer identification optical fiber.
Background technology
Optical fiber splicer is used for a variety of optical fiber of welding, and in weld job, different types of optical fiber generally requires setting not
Same splicing parameter, the fiber identification method based on image are typically all to make optical fiber image by Optical devices such as focusing
Variation, and analyze and compare these variations to determine the type of optical fiber.(i.e. observed object is relatively moved between optical fiber and object lens
Defocus, zooming procedure), G.652 and G.653 and G.655 such as for optical fiber, the difference of fibre core is very little,
Only be difficult to identify completely with a frame image (in the case that Fig. 6 is general object lens and optical fiber does not relatively move, it can
It is amplified the imaging effect of imaging to optical fiber, Fig. 7 is corresponding oscillogram, and this imaging method is to be equal to one by optical fiber is similar
As glass bar, fibre core can not be differentiated), it is necessary to by optical fiber defocus, and record during defocus the image of its each position,
For integrating assistant analysis, its difference can be just judged.Currently existing scheme is the purpose focused by the mobile realization of object lens,
It realizes in addition the mobile needs of object lens increase focus adjusting mechanism in optical fiber splicer, includes two or more in focus adjusting mechanism
Motor is moved forward and backward realization zoom by motor pushing object lens, but focus adjusting mechanism is complicated for operation, occupies big quantity space, carries
Rise manufacturing cost.
Aligning holder is the important component of optical fiber splicer, and the effect of existing aligning holder can only weld it in optical fiber
Before, the position of two optical fiber is limited, ensures that two fiber end faces are mutually aligned, ensures the precision of welding.
Invention content
Technical problem to be solved by the invention is to provide a kind of optical fiber splicer knowledges easy to operate, recognition accuracy is high
The method of other optical fiber.
The technical problem to be solved by the present invention is to also provide a kind of optical fiber splicer identification fibre system.
The technical problem to be solved by the present invention is to provide a kind of method special secondary school realized optical fiber splicer and identify optical fiber again
With aligning holder.
In order to solve the above technical problems, the present invention provides a kind of method that optical fiber splicer identifies optical fiber, including it is following
Step：
A) two optical fiber to be welded are individually positioned on two aligning holders of machine of fused fiber splice, two optical fiber ends
Face is opposite；
B) corresponding optical fiber is made to be moved along the optical axis direction of optical fiber splicer object lens by aligning holder；
C) object lens and CCD acquire the optical fiber image signal in optical fiber moving process, to judge the type of optical fiber；
Judge that the type of optical fiber includes in wherein step c)：
By the optical fiber image signal acquired in step c) compared with several thresholds, according to comparison result, acquired in step c)
Optical fiber image signal it is corresponding with any threshold, then be considered as this optical fiber be Known Species optical fiber corresponding with above-mentioned threshold be same
Kind type optical fiber.
As the preferred of this method, the optical fiber image signal acquired in step c) includes image ordinate parameter and corresponding
Grey scale pixel value.
As the preferred of this method, threshold is determined by following steps：
It chooses known different types of optical fiber respectively in advance, known different types of optical fiber is made to pass through step a) respectively
With step b), the optical fiber image signal in known variety classes optical fiber moving process is acquired using object lens and CCD, and will be upper
Several optical fiber image signals are stated to be correspondingly arranged as several thresholds.
After such method, by aligning come change optical fiber between camera lens at a distance from, analysis comparison these variation with
The type for determining optical fiber, to reach in operating personnel it is not necessary that in the case of knowing fiber type, optical fiber splicer automatically selects properly
Splicing parameter, with simplify operate；And it is multiplexed the device on existing welder to the full extent, without increasing focusing machine
Structure.
In order to solve the above technical problems, the present invention also provides a kind of optical fiber splicers to identify fibre system, including it is following
Module：
Aligning module, for driving optical fiber to move；
Acquisition module, for acquiring the optical fiber image signal in optical fiber moving process；
Comparison module, for by collected optical fiber image signal compared with several thresholds；
Selecting module, according to comparison result, the optical fiber image signal of acquisition is corresponding with any threshold, then is considered as this optical fiber and is
Known Species optical fiber corresponding with above-mentioned threshold is one species optical fiber；
The result that selecting module obtains is transmitted to external equipment by transmission module.
After such system, the ability for making the system have identification optical fiber can preferably realize optical fiber splicer
The method for identifying optical fiber.
In order to solve the above technical problems, invention further provides a kind of methods realized above-mentioned optical fiber splicer and identify optical fiber
In special aligning holder；
Including shell, two groups of adjusting parts and two fiber orientation blocks, the fiber orientation block is with the adjusting part
One-to-one relationship, opens that there are two the adjustment holes for running through its upper and lower end face in the shell；
The adjusting part includes elastic component, drive link and steel ball, and elastic component is in the corresponding adjusting hole site of shell
It is provided with through-hole, elastic component surface is extended with independent swing rod to through-hole upside, between the end and through-hole upper end opening of swing rod
With the gap for accommodating steel ball, drive link is stretched through the through-hole of elastic component and the corresponding adjustment hole of shell, the lower end of drive link
Go out on the downside of adjustment hole, steel ball is placed between drive link upper end and swing link end part, and the diameter of steel ball is less than elastic component through-hole
Aperture, the fiber orientation block are fixed on corresponding swing rod upper end, and fiber orientation block upper surface is provided with the limit for placing optical fiber
Position groove；
On the same line, the swing rod drives corresponding optical fiber fixed to the center line of the limiting groove of two fiber orientation blocks
Position block movement, the vertical plane where two fiber orientation block motion tracks are respectively at limiting groove center line are symmetrical.
After such system, it is defined mobile that this special aligning holder can drive optical fiber to complete, and meets optical fiber welding
The design requirement for the method for identifying optical fiber that picks.
The drive link upper end of this special aligning holder is equipped with the first groove for agreeing with steel ball, the swing link end part lower face
It is provided with the second groove for agreeing with steel ball；After such structure, the cooperation between steel ball and drive link and swing rod can be facilitated,
And steel ball is avoided to be slid between drive link and swing rod.
The drive link of this special aligning holder includes first body of rod in upper end and second body of rod in lower end, and second
The upper surface of the body of rod is provided with positioning groove, and the first body of rod lower end is stretched into the positioning groove of second body of rod, first body of rod and second
Fixed between the body of rod, the first body of rod upper end is equipped with the first groove for agreeing with steel ball；After such structure, the structure of drive link
Specifically, industrialization is facilitated to process.
The housing exterior walls of this special aligning holder are extended with flange；After such structure, facilitate this aligning holder with
Assembly between optical fiber splicer.
Second body of rod upper diameter of the drive link of this special aligning holder is more than the diameter of the second body of rod lower part；
The shell includes shell ontology and installation baffle, is provided in shell ontology at least one through the of its upper and lower end face
One adjusts stage hole, and the first aperture for adjusting stage hole lower part is more than the diameter on the second body of rod top, installs and correspond to shell on baffle
First adjusting stage hole site of ontology is provided at least one second and adjusts stage hole, and the second aperture for adjusting stage hole is more than the
The diameter of bipole body lower part and diameter less than the second body of rod top, installation baffle are fixed on shell body lower part, and the of shell ontology
One adjusting stage hole the second adjusting corresponding with installation baffle stage hole collectively constitutes the adjustment hole of shell.
After such structure, the structure of shell and drive link has been refined, has facilitated the two to assemble, reduces this aligning branch
The difficulty of processing of frame.
Description of the drawings
Fig. 1 is the usage state diagram of this special aligning stent embodiment.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is Fig. 1 along A-A to cutaway view Amplified image.
Fig. 4 is the portions the B enlarged drawing of Fig. 1.
Fig. 5 is the sectional view of this special aligning stent embodiment shell and elastic component.
Fig. 6 is the imaging effect figure of fixed object lens in the prior art.
Fig. 7 is the corresponding oscillograms of Fig. 6.
Fig. 8 is single mode optical fiber optical fiber refraction diagram.
Fig. 9 is the light channel structure schematic diagram of optical fiber splicer.
Figure 10 is the 2D curved surface illumination figures of the method acquisition of this optical fiber splicer identification optical fiber.
Figure 11 is the several picture analysis chart of the method acquisition of this optical fiber splicer identification optical fiber.
Figure 12 is its imaging effect figure of the simulation of method acquisition of this optical fiber splicer identification optical fiber.
Figure 13 is the imaging effect figure of the method object lens of this optical fiber splicer identification optical fiber.
Figure 14 is the corresponding oscillograms of Figure 13.
Specific implementation mode
As shown in Fig. 1 to 5 (section view direction of Fig. 5 is consistent with the section view direction of Fig. 3)
The structure of special aligning holder is first introduced below, and aligning holder includes 1, two group of adjusting part of shell and two groups of optical fiber
Locating piece 3.
Shell 1 includes shell ontology 11 and installation baffle 12, opens that there are two run through the first of its upper and lower end face in shell ontology 11
Adjusting stage hole 11a, install baffle 12 on correspond to shell ontology 11 first adjusting stage hole 11a position open there are two second adjusting
Stage hole 12a, installation baffle 12 are adjusted by trip bolt (not shown) in 11 lower part of shell ontology, the first of shell ontology 11
Stage hole 11a second adjusting stage hole 12as corresponding with installation baffle 12 collectively constitutes the adjustment hole of shell 1, outside shell ontology 11
Wall is extended with flange 11b.
Adjusting part includes elastic component 21, drive link and steel ball 23, the section generally regular hexagon of elastic component 21
Shape, elastic component 21 the corresponding adjusting hole site of shell 1 be provided with through thereon, the through-hole 21a of lower face, 21 side of elastic component
Wall surface is extended with independent swing rod 21b to the upsides through-hole 21a, and the ends swing rod 21b extend to the upper of 21 through-hole 21a of elastic component
End has the gap for accommodating steel ball 23, the ends swing rod 21b lower face between the end and through-hole 21a upper end openings of swing rod 21b
It is provided with the second groove 21c for agreeing with steel ball 23.
Drive link runs through the 1 corresponding adjustment hole of through-hole 21a and shell of elastic component 21, and drive link includes being in upper end
First body of rod 22a and the second body of rod 22c in lower end, the second body of rod 22c upper diameters are more than the straight of the second lower parts body of rod 22c
The upper surface of diameter, the second body of rod 22c is provided with positioning groove 22d, and the positioning that the second body of rod 22c is stretched into the first lower ends body of rod 22a is recessed
It in slot 22d, is interference fitted between the first lower ends body of rod 22a and the positioning groove 22d of the second body of rod 22c, the first body of rod 22a and
Fixed between bipole body 22c, the first upper ends body of rod 22a are equipped under the first the groove 22b, the second body of rod 22c for agreeing with steel ball 23
Certain distance on the downside of adjustment hole is stretched out at end；
The diameter on the second tops body of rod 22c is less than the first aperture for adjusting stage hole 11a lower part, the second lower parts body of rod 22c
Diameter be less than the second aperture for adjusting stage hole 12a, the diameter on the second tops body of rod 22c is more than second and adjusts stage hole 12a
Aperture.
Steel ball 23 is placed between the second groove 21c of the first groove 22b and swing rod 21b of the first body of rod 22a, steel ball 23
Diameter be less than 21 through-hole 21a of elastic component aperture.
Two adjustment holes, two fiber orientation blocks 3 and the two groups of adjusting parts of shell 1 are one-to-one relationship, two light
The fixation of fine locating piece 3 is bonded in the upper ends corresponding swing rod 21b, and each 3 upper surface of fiber orientation block is provided with the limit for placing optical fiber 5
Groove 31 has gap between two fiber orientation blocks 3, and the center line of the limiting groove 31 of two fiber orientation blocks 3 exists
On same straight line, the swing rod 21b of two groups of adjusting parts is respectively at the vertical plane both sides where 31 center line of limiting groove.
Aligning holder is fixed in optical fiber splicer using the flange 11b of 11 outer wall of shell ontology, the two of optical fiber splicer
A object lens 4 are in aligning holder both sides, and two 5 ends of optical fiber being placed in two fiber orientation blocks 3 are observed by both sides object lens 4
The relative position in face, external agency act on the second lower ends body of rod 22c of drive link, and the steel ball 23 that drive link drives top is made to occur
Displacement, and then the ontology of the swing rod 21b relative resilients component 21 of elastic component 21 is made to swing, due to two 21b points of swing rods
Other places are connect along swing rod with elastic component 21 in the vertical plane both sides where 31 center line of limiting groove, each fiber orientation block 3
Place is swung, and since the arc length of swing is very short, can be regarded as moving linearly in the movement that object lens 4 are observed, this straight line and optical fiber welding
Pick object lens optical axis approximation point-blank, and fiber orientation block 3 is moved to far from 5 side of object lens, and two optical fiber are fixed
Vertical plane where position 3 motion track of block is respectively at limiting groove center line is symmetrical.
(arrow direction of Fig. 8 refers to the light direction of propagation) as shown in Figure 8-9.
Realize this optical fiber splicer identify optical fiber method before need consider fiber identification principle and with it is existing
Focus adjusting mechanism there are the problem of.
By taking single mode optical fiber 5 as an example, it is assumed that after a large amount of parallel incoming rays of light source 7 are transmitted by optical fiber 5, in entire light
Certain variation (only probably simulating wherein three light in Fig. 8) has occurred in its light field in the range of fibre 5.
Wherein, optical fiber 5 is an object first, by reflective later by optical system imaging in CCD6, this image
It should be similar to the imaging effect of Fig. 6 and Fig. 7.
Optical fiber 5 is again simultaneously that one transparent and wherein there is the objects of small variations in refractive index, can be equal
For a cylindrical lens, then when light is propagated wherein, optical fiber 5 also assists in the light variation of optical system in itself.
Since fiber core with single-mold is smaller with cladding index differences, and size is very small, to the light of entire light field
It influences step by step again very little.
In order to which 5 form of optical fiber highlights, following improvement can be made to optical fiber splicer：
(1) resolution ratio of the entire optical system of raising as possible, keeps its disc of confusion small as possible, that is, improves its optical imagery
Precision.
(2) using special face type design lens (using even aspheric surface), optical fiber 5 divides this of light again
With being amplified again by aspherical.(method for being similar to the design of LED light distributions).
(Figure 10 is the 2D curved surface illumination figures of zemax softwares as shown in Figure 10 to 14：By being inserted into optical fiber in optical system
Directly simulation light passes through the distribution diagram after optical fiber and entire optical system on the faces CCD, irradiation level/light of tracePro
Illumination analysis, Figure 12 are that its imaging effect figure is simulated in zemax softwares, the method pair that Figure 13 to 14 passes through optical imaging designs
Imaging fiber is aided with Design of Binary Optics method, and optical fiber, which is equal to a complicated optical lens, participates in imaging and optics
Distribution.Simulate obtain the result is that disclosure satisfy that desired imaging requirements).
Below in conjunction with above-mentioned special aligning holder and the method for being specifically described optical fiber splicer identification optical fiber, optical fiber splicer
The method for identifying optical fiber, includes the following steps：
A) on two special aligning holders of the machine that two optical fiber 5 to be welded are individually positioned in 5 welding of optical fiber, two
5 end face of optical fiber is opposite；
B) make corresponding optical fiber 5 along the optical axis direction of optical fiber splicer object lens 4 to far from 4 side of object lens by aligning holder
It is mobile；
C) object lens 4 and CCD6 acquire the optical fiber image signal in 5 moving process of optical fiber, and optical fiber image signal includes image
Ordinate parameter and corresponding grey scale pixel value etc., to judge the type of optical fiber 5；
Judge that the type of optical fiber 5 includes in wherein step c)：
By the optical fiber image signal acquired in step c) compared with multiple thresholds, according to comparison result, acquired in step c)
Optical fiber image signal it is corresponding with any threshold, then be considered as this optical fiber 5 be Known Species optical fiber corresponding with above-mentioned threshold 5 be same
A kind of type optical fiber 5.
The threshold is determined by following steps：
It chooses known different types of optical fiber 5 respectively in advance, known different types of optical fiber 5 is made to pass through step respectively
A) with step b), the optical fiber image signal in known 5 moving process of variety classes optical fiber is acquired using object lens 4 and CCD6,
Optical fiber image signal be also include image ordinate parameter and corresponding grey scale pixel value etc., and by above-mentioned multiple optical fiber images
Signal is correspondingly arranged as multiple thresholds.
Described to have acquired optical fiber image signal extraction and threshold and compared is completed by software, is extracted, comparison software
Principle is as follows：
Aligning holder can make optical fiber change, wherein optical fiber in CMOS X normal directions when moving, in CMOS
It can be seen that fiber position variation on Y；Optical fiber in CMOS Y normal directions when moving, it can be seen that optical fiber position on CMOS X
Set variation.
Extraction and comparison are in three steps：
1. training, is mainly used for extracting different fibre characteristics.
2. feature extraction makes image change, and according to the molten light of image zooming-out institute before welding by operating adjustment device
Fine feature.
3. identification compares melted fibre characteristic and gained various fibre characteristics when training, the molten optical fiber to determine
Type.
Wherein first two steps feature extraction mode is identical.
Feature, by the feature of image analysis difference optical fiber, key therein is that reflection is arrived after light is reflected by optical fiber
Gray difference on image.Figure below is the gray-scale map that optical fiber image is converted into, and wherein fibre core position is in " mountain " font.
1. abscissa：Image ordinate
2. ordinate：Grey scale pixel value
3. characteristic point 1
4. characteristic point 2
5. characteristic point 3
Include that multiple characteristic quantities refer to the gray value of three characteristic points in reflection to gray-scale map in $ y=f (x) $, in $ y $
$[y_1,y_2,y_3]$。
$ x $ characterize optical fiber 5 at a distance from camera lens.The difference that mode is chosen according to $ x $, there are two types of feature extraction modes：
1. single image method：$ x $ are fibre core brightness, i.e., somewhere gray value in gray-scale map.Record and analyze the number of comparison
According to the value of $ y $ when be $ x $ being certain fixed value (such as 1.0).
2. dual image method：$ x $ are optical fiber 5 (only needs relative distance) at a distance from camera lens, in practical operation, by light
The longitudinal coordinate of fibre 5 on the image is as x, for example, optical fiber 5, when being moved in X-axis, we can see light on CMOS Y
The variation of fine 5 positions, and the variation of 5 clarity of optical fiber is seen on CMOS X, it is longitudinal with the optical fiber 5 seen on CMOS Y
Coordinate is as $ x $.When such method requires aligning, 5 moving direction of optical fiber is parallel with CMOS plane normals, ensures in this way in CMOS
On 5 change in location of optical fiber seen and optical fiber 5 it is in a linear relationship at a distance from another lens barrel.
In both methods, the former is simpler, and the latter is more acurrate, but increases the requirement to mechanical structure.
Regard $ f $ as coefficient matrixes, function $ y=f (x) $ can be written as form：
$$\left[\begin{matrix}
y_1\\y_2\\y_3
\end{matrix}\right]
=left [begin { matrix }
f_{00}&f_{01}&f_{02}\\
f_{10}&f_{11}&f_{12}\\
f_{20}&f_{21}&f_{22}\\
\end{matrix}\right]
\left[\begin{matrix}
x^2\\x\\1
\end{matrix}\right]$$
Wherein $ x $, $ y $ are obtained by image procossing, and matrix $ f $ are then obtained by curve matching.In order to enhance adaptability,
X in y and single image method can be normalized, even if with the pixel grey scale and figure of 5 present position of optical fiber
As the ratio of background gray scale.
Training method in each training process, changes 5 position of optical fiber, and obtain n group images, according to preceding by aligning
In face of the definition of x and y, analysis image obtains n to [x, y].
Each optical fiber 5 train $ m $ times to get to $ m times n $ group data, and by these data least square methods into
Row fitting obtains matrix $ f $, is denoted as $ f_p $.Wherein f_p can be independently fitted with every row, i.e. three characteristic point independent process.Often
Kind optical fiber 5 can obtain such a coefficient matrix $ f_p $, be denoted as $ f_ { p0 } $, $ f_ { p1 } $, $ f_ { p2 } $, $ f_ respectively
{p3}$……。
Feature extraction, characteristic extraction procedure is identical as training process, and difference is only to carry out once, that is, having to $ n $ group numbers
According to.It is fitted just for this $ n $ group data, obtains coefficient matrix $ f_r $.
Identification, theoretically for, directly relatively $ f_r $ and $ f_p $ can obtain a result, but due in $ f $ data it is more,
Be not suitable for directly relatively, therefore we choose a suitable $ x $, such as 1.0 (being suitable for single image method) or optical fiber 5
In image longitudinal direction middle (being suitable for dual image method), it is denoted as $ x_0 $.$ x_0 $ are substituted into $ y=f_r (x) $ and $ y=respectively
F_ { pi } (x) $ (wherein $ i=0,1,2,3 ... $), $ y_r $ and $ y_ { pi } $ is respectively obtained, identification is exactly to compare $ y_r $ and $
Y_ { pi } $, it is final to determine $ i $, determine that 5 type of optical fiber.The selection principle of $ i $ is the difference so that $ y_r $ and $ y_ { pi } $
Different minimum.
The method of above-mentioned optical fiber splicer identification optical fiber is also understood that in fact identifies 5 system of optical fiber for a kind of optical fiber splicer
System, comprises the following modules：
Aligning module, for driving optical fiber 5 to move；
Acquisition module, for acquiring the optical fiber image signal in 5 moving process of optical fiber；
Comparison module, for by collected optical fiber image signal compared with several thresholds；
Selecting module, according to comparison result, the optical fiber image signal of acquisition is corresponding with any threshold, then is considered as this optical fiber 5
It is one species optical fiber 5 for Known Species optical fiber corresponding with above-mentioned threshold 5；
The result that selecting module obtains is transmitted to external equipment by transmission module.
Above-described is only one embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the principle of the present invention, several variations and modifications can also be made, these also should be regarded as belonging to this hair
Bright protection domain.
Claims (9)
1. a kind of method of optical fiber splicer identification optical fiber, includes the following steps：
A) two optical fiber to be welded are individually positioned on two aligning holders of machine of fused fiber splice, two fiber end face phases
It is right；
B) corresponding optical fiber is made to be moved along the optical axis direction of optical fiber splicer object lens by aligning holder；
C) object lens and CCD acquire the optical fiber image signal in optical fiber moving process, to judge the type of optical fiber；
Judge that the type of optical fiber includes in wherein step c)：
By the optical fiber image signal acquired in step c) compared with several thresholds, according to comparison result, the middle light acquired of step c)
Fine picture signal is corresponding with any threshold, then it is one species to be considered as this optical fiber as Known Species optical fiber corresponding with above-mentioned threshold
Optical fiber.
2. the method for optical fiber splicer identification optical fiber according to claim 1, it is characterized in that：
The optical fiber image signal acquired in the step c) includes image ordinate parameter and corresponding grey scale pixel value.
3. the method for optical fiber splicer identification optical fiber according to claim 1, it is characterized in that：
The threshold is determined by following steps：
It chooses known different types of optical fiber respectively in advance, makes known different types of optical fiber by step a) and step respectively
It is rapid b), the optical fiber image signal in known variety classes optical fiber moving process is acquired using object lens and CCD, and if will be above-mentioned
Dry optical fiber image signal is correspondingly arranged as several thresholds.
4. a kind of optical fiber splicer identifies fibre system, comprise the following modules：
Aligning module, for driving optical fiber to move；
Acquisition module, for acquiring the optical fiber image signal in optical fiber moving process；
Comparison module, for by collected optical fiber image signal compared with several thresholds；
Selecting module, according to comparison result, the optical fiber image signal of acquisition is corresponding with any threshold, then be considered as this optical fiber be with it is upper
It is one species optical fiber to state the corresponding Known Species optical fiber of threshold；
The result that selecting module obtains is transmitted to external equipment by transmission module.
5. special aligning holder in a kind of method for realizing any one of claims 1 to 3 optical fiber splicer identification optical fiber, special
Sign is：
Including shell, two groups of adjusting parts and two fiber orientation blocks, the fiber orientation block is one by one with the adjusting part
Correspondence, opens that there are two the adjustment holes for running through its upper and lower end face in the shell；
The adjusting part includes elastic component, drive link and steel ball, and elastic component is provided in the corresponding adjusting hole site of shell
Through-hole, elastic component surface are extended with independent swing rod to through-hole upside, have between the end and through-hole upper end opening of swing rod
The gap of steel ball is accommodated, drive link runs through the through-hole and the corresponding adjustment hole of shell of elastic component, and the lower end of drive link, which is stretched out, adjusts
On the downside of knothole, steel ball is placed between drive link upper end and swing link end part, and the diameter of steel ball is less than the aperture of elastic component through-hole,
The fiber orientation block is fixed on corresponding swing rod upper end, and the limit that fiber orientation block upper surface is provided with placement optical fiber is recessed
Slot；
On the same line, the swing rod drives corresponding fiber orientation block to the center line of the limiting groove of two fiber orientation blocks
Mobile, the vertical plane where two fiber orientation block motion tracks are respectively at limiting groove center line is symmetrical.
6. special aligning holder according to claim 5, it is characterized in that：
The drive link upper end, which is equipped with, agrees with the first groove of steel ball, and the swing link end part lower face, which is also provided with, agrees with the of steel ball
Two grooves.
7. special aligning holder according to claim 5, it is characterized in that：
The drive link includes first body of rod in upper end and second body of rod in lower end, and the upper surface of second body of rod is opened
There are positioning groove, the first body of rod lower end to stretch into the positioning groove of second body of rod, it is fixed between first body of rod and second body of rod, the
One body of rod upper end is equipped with the first groove for agreeing with steel ball.
8. the special aligning holder stated according to claim 5, it is characterized in that：
The housing exterior walls are extended with flange.
9. special aligning holder according to claim 7, it is characterized in that：
Second body of rod upper diameter of the drive link is more than the diameter of the second body of rod lower part；
The shell includes shell ontology and installation baffle, and at least one the first tune through its upper and lower end face is provided in shell ontology
Section stage hole, the first aperture for adjusting stage hole lower part are more than the diameter on the second body of rod top, install and correspond to shell ontology on baffle
First adjusting stage hole site be provided with it is at least one second adjust stage hole, second adjust stage hole aperture be more than the second bar
The diameter of body lower part and the diameter for being less than the second body of rod top, installation baffle are fixed on shell body lower part, and the first of shell ontology adjusts
Section stage hole the second adjusting corresponding with installation baffle stage hole collectively constitutes the adjustment hole of shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810171360.6A CN108363143B (en) | 2018-03-01 | 2018-03-01 | Method for identifying optical fiber by optical fiber fusion splicer, system thereof and special core-adjusting support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN112130256A (en) * | 2020-11-06 | 2020-12-25 | 南京天兴通电子科技有限公司 | Novel optical fiber type identification system |
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