CN104536090B - Method for Inspecting Optic Fiber End and fiber end face polishing and detection device - Google Patents
Method for Inspecting Optic Fiber End and fiber end face polishing and detection device Download PDFInfo
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- CN104536090B CN104536090B CN201410713984.8A CN201410713984A CN104536090B CN 104536090 B CN104536090 B CN 104536090B CN 201410713984 A CN201410713984 A CN 201410713984A CN 104536090 B CN104536090 B CN 104536090B
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Classifications
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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
- G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/255—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring radius of curvature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/94—Investigating contamination, e.g. dust
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
Abstract
The present invention provides fiber end face polishing and detection devices and Method for Inspecting Optic Fiber End, equipment includes power supply device, light source, photographic device, image processing apparatus, image display device, motor driver, electric discharge device, fiber clamp device, step point electric discharge heat fusion step, image processing step, spectral discrimination step, Method for Inspecting Optic Fiber End of the present invention handles fiber end face in the way of electric discharge hot melt, it can be to the cleannes of treated fiber end face, injury tolerance, the data such as radius of curvature are detected automatically, eliminating fiber cut brings end face uneven and the problems such as there are cut marks, to achieve the effect that polish fiber end face, treated, and fiber end face has good surface quality, uniformity and consistency, it does not need that fast splicing can be carried out with other optical fiber into the other mechanical treatments of row again, this hair The characteristics of bright equipment has compact, easy to operate, is convenient for user's in-site installation.
Description
Technical field
The present invention relates to communication equipment processing technique fields, more particularly to are judged fiber end face situation, detected
Method for Inspecting Optic Fiber End, and fiber end face polishing and detection device made by application this method.
Background technique
When making fiber active linker at the scene at present, machine cuts only are carried out without to fiber end face to optical fiber
Any polishing treatment is carried out, while in the production process also without any real-time detection tool, since the effect of machine cuts takes
Certainly in the precision of machine cuts knife and the qualification of operator, since above-mentioned two factor does not have during actual fabrication
It is guaranteed, causes fiber end face quality and consistency to be unable to get and be effectively ensured, since optical fiber field is flexibly connected optics
Performance it is excellent depending on factors such as the cleannes of fiber end face, injury tolerance and suitable radius of curvature, therefore even if machinery is cut
It cuts to have obtained good fiber end face, since the end face of machine cuts is wanting for the radius of curvature that plane is unable to satisfy fiber end face
It asks, causes optical fibre to connect ineffective, simultaneously as there is no real-time detection means, lead to field optical fibers flexible jumper
Quality be unable to get guarantee, although can temporarily eliminate some ask by addition optical fibre refractivity matching fluid in the prior art
Topic, but there is the disadvantages of being easy to run off, is easy to pollute in optical fibre refractivity matching fluid, optical fibre refractivity matching fluid reduces optical fibre
The reliability of connection, so as to cause optical fiber connection optical property it is unstable.
In order to keep optical fiber connect after have stablize excellent optical property, to fiber end face carry out spherical polishing at
Reason, also there is the equipment for carrying out fiber end face processing by electric discharge hot melting way in the prior art, such as optical fiber splicer etc. is led to
Cross hot melt fiber end face achieve the effect that eliminate fiber end face reflection, but at the construction field (site) to fibre junction when, in addition to light
There is the requirement of cleannes and injury tolerance in fine end face, also has strict requirements, but optical fiber to the diameter of fiber end face and radius of curvature
The equipment such as heat sealing machine can only observe optical fiber side, do not have calculate to fiber end face especially fiber end face radius of curvature and comment
The function of estimating, permanently connects in two optical fiber or without the concern for fiber end face diameter and radius of curvature, optical fiber
The equipment such as heat sealing machine are chiefly used in carrying out the hot melt processing of fiber end face.
In the prior art, also fiber end face is processed by shot blasting using the polishing mode of mechanical lapping, can be obtained in this way
To the fiber end face of certain radius of curvature, to guarantee the excellent of optical property, but the polishing mode of mechanical lapping is ground
Grinding process is complicated, and equipment volume is larger, at factory or scene, if using the polishing mode of mechanical lapping, process phase
To cumbersome, and fiber end face quality of finish must be examined after grinding process by dedicated fiber end face scope
It tests, then needs to repeat grinding process if there is the bad situation of polishing effect even to make optical fiber connector to scrap processing, together
When mechanical lapping the polishing mode diamond polishing paper that needs to use belong to expensive consumptive material, increase single processing
Cost, therefore be unfavorable for optical fiber field operation in the polishing mode of factory or the mechanical lapping of scene use and use.
Summary of the invention
In view of the above drawbacks of the prior art and problem, it is an object of that present invention to provide a kind of polishing of fiber end face and detections
Equipment carries out electric discharge hot melt processing to fiber cut end face, it is ensured that the cleannes of fiber end face, injury tolerance and end face radius of curvature
Consistency, and fiber end face is carried out electric discharge hot melt processing after, in real time acquire fiber end face image, send display screen to
For the fiber end face image of observation, while sending image processing apparatus to and carrying out black white binarization processing for calculating optical fiber end
Cleannes, injury tolerance and the radius of curvature in face, and according to optical reflection principle, optical fiber end is determined by image processing apparatus automatically
Face heats situation, is heated with determining the need for additional primary electric discharge to guarantee that fiber end face attachment is cleaned, cutting damage
It is repaired and is formed suitable radius of curvature, the present invention also provides a kind of Method for Inspecting Optic Fiber End, can pass through computer
Technology, which is realized, quickly judges fiber end face and detection cleannes, injury tolerance and radius of curvature.
In order to achieve the above object, the invention provides the following technical scheme:
Fiber end face polishing and detection device, including power supply device, light source, photographic device, image processing apparatus, image are aobvious
Showing device, motor driver, electric discharge device, fiber clamp device, the power supply device be separately connected light source, photographic device,
Image processing apparatus, image display device, motor driver, electric discharge device；Image processing apparatus and photographic device, image are aobvious
Showing device, motor driver, electric discharge device connection；Electric discharge device is made of electrode group, the fiber clamp device and motor
Driving device connection；Optical fiber fixing groove is arranged in fiber clamp device, and light source is opposite with optical fiber fixing groove.
In above-mentioned technical proposal, the electrode group is made of two symmetry electrodes.
In above-mentioned technical proposal, the photographic device includes CCD chip and magnification objective, and focus is positioned at right with two
The midpoint of electrode axial connecting line is referred to as the centre of sphere, and radius is preferably to be positioned at two electrode axial connecting lines in the sphere of 1mm
Midpoint.
In above-mentioned technical proposal, the magnification objective of the photographic device is opposite and coaxial with optical fiber fixing groove, and the two axis
The axial connecting line of heart line and two electrodes, which intersects, to be at an angle of, which is preferably 90 degree.
In above-mentioned technical proposal, the light source is annular light source or symmetrical light sources.
In above-mentioned technical proposal, the light and optical fiber fixing groove axis of the light source transmitting are at incident angle.
Preferred technical solution, the incident angle are 45 degree.
The present invention also provides a kind of Method for Inspecting Optic Fiber End, have follow steps:
Step a electric discharge heat fusion step carries out electric discharge hot melt to fiber end face using electric discharge device and handles；
Step b image processing step sends image to using the fiber end face image that photographic device acquires after discharging hot melt
Device carries out black white binarization processing, and the cleannes of fiber end face, injury tolerance and radius of curvature etc. are calculated according to processing data
Data；
Step c is calculated the cleannes of gained fiber end face by step c spectral discrimination step, injury tolerance and radius of curvature
The data of the cleannes of data and predefined standard fiber end face, injury tolerance and radius of curvature are compared, to determine whether
Primary electric discharge additional to fiber end face；If it is predefined that comparison result is that cleannes, injury tolerance, radius of curvature meet, tie
Beam operates and prompts to complete to polish, otherwise additional primary electric discharge hot melt processing, and repeats step b, c, until fiber end face curvature
Radius is lower than preset minimum value, then end operation and alerts.
Method for Inspecting Optic Fiber End of the present invention handles fiber end face in the way of electric discharge hot melt, can be to treated light
The data such as cleannes, injury tolerance, the radius of curvature of fine end face are detected automatically, are eliminated fiber cut and are brought end face uneven
And the problems such as there are cut marks, to achieve the effect that polish fiber end face, treated, and fiber end face has good surface matter
Amount, uniformity and consistency do not need that fast splicing, this hair can be carried out with other optical fiber into the other mechanical treatments of row again
The characteristics of bright equipment has compact, easy to operate, is convenient for user's in-site installation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is fiber end face polishing and assay device structures schematic diagram.
Fig. 2 is imaging fiber and electric discharge hot melt structure schematic diagram.
Fig. 3 is image processing algorithm flow chart.
The fiber end face schematic diagram of the predefined qualification of Fig. 4.
Fig. 5 is fiber end face schematic diagram qualified after electric discharge heats.
Fig. 6 is the fiber end face schematic diagram that cleannes are poor, injury tolerance is high, radius of curvature is excessive after electric discharge heats.
Fig. 7 is the fiber end face schematic diagram that radius of curvature is too small after electric discharge heats.
Specific embodiment
Below in conjunction with attached drawing of the invention, technical solution of the present invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
Present invention offer embodiment is directed to the silica fibre that diameter is 125um and has carried out example.
As shown in Figure 1, as fiber end face shown in embodiment polishing and detection device, including power supply device 8, light source 1,
Photographic device 2, image processing apparatus 3, image display device 9, motor driver 5, electric discharge device 4, fiber clamp device 7.
Described image processing unit 3 is the microcomputer for having data processing function, image processing apparatus 3 and photographic device 2, motor
Driving device 5, image display device 9, electric discharge device 4 are connected by data line.Power supply device is separately connected light source, camera shooting dress
Set, image processing apparatus, image display device, motor driver, electric discharge device and for these devices power.
The motor driver 5 is small-power micro-step motor, fiber clamp device 7 can be driven to move forward and backward, light
Optical fiber fixing groove 701 is provided on fine grip device 7, optical fiber fixing groove 701 is channel shape or other can fix optical fiber
Straight way, the axis for being fixed on optical fiber in optical fiber fixing groove 701 is the axis of optical fiber fixing groove.Photographic device 2 includes magnification objective
201 and CCD chip 202, the focus of photographic device 2 be positioned at using two coaxial electrodes 401,402 lines midpoint as the centre of sphere, radius
For in the sphere of 1mm, the focus of the present embodiment photographic device 2 is positioned at the midpoint of two symmetry electrode lines, multiplying power object
Mirror 201 is opposite and coaxial with optical fiber fixing groove 701, and the Axis Cross of axis and coaxial electrode 401,402 is angled, this
The Axis Cross of the axis of the coaxial magnification objective 201 of embodiment and optical fiber fixing groove 701 and coaxial two electrodes 401,402
At 90 degree.
As shown in Fig. 2, since optical fiber fixing groove 701 is opposite and coaxial with magnification objective, so when optical fiber 6 to be processed is solid
After being scheduled in optical fiber fixing groove 701, magnification objective 201 is opposite and coaxial with fiber end face 601, in the present embodiment, camera shooting dress
The focus for setting 2 is positioned at the midpoint of two symmetry electrodes 401,402 lines, so working as fiber end face 601 is moved to two symmetrically
Electrode 401,402 lines midpoint when, photographic device 2 can obtain clearest fiber end face image.
Fiber end face polishing of the present invention and detection device use program are as follows:
Step a, it drives fiber clamp device 7 to move axially back and forth along magnification objective 201 by motor driver 5, leads to
It crosses image processing apparatus 3 and gray count is carried out to the end face 601 of grip optical fiber on fiber clamp device 7, gray value meets predetermined
Justice value stops driving；
Step b, it carries out electric discharge hot melt to fiber end face using electric discharge device to handle, the output of image processing apparatus 3 at this time is put
Electricity instruction generates high-temperature electric arc by the discharge electrode 401,402 of symmetric coaxial, forms electric arc to electric discharge device 4, electric discharge device
Area, the fiber end face 601 of the midpoint in two symmetry electrodes 401,402 lines is by electric arc quantitative heating and then part is melted
Melt, to form the end face being suitable for other fiber couplings, effectively improves fibre junction quality, avoid before connecting to light
Fine end face carries out the pretreatment process of mechanical grinding etc, accelerates handshaking procedure.The electric discharge device 4 of the embodiment of the present invention is pre-
If two groups of specific discharge currents and discharge time, first group of short time, low current, for tentatively cleaning fiber end face, time
For 0.1S, electric current 0.5A, second group of long-time, high current, time 0.5S, electric current 1.5A.Not according to fibre diameter
It can choose 0.5~2S with the time, electric current can choose 0.5~2A.Professional and technical personnel in the field, can also by experiment,
When the fiber end face of different size is handled, the preset discharge current of adjustable electric discharge device 4 and discharge time, thus
To corresponding reasonable parameter；
Step c, the fiber end face image after being acquired electric discharge hot melt using photographic device is sent to image device and carries out black and white
Binary conversion treatment, and according to the cleannes of processing data calculating fiber end face, the data such as injury tolerance and radius of curvature, i.e. camera shooting dress
It sets 2 to acquire the fiber end face after electric discharge melting again and send image processing apparatus 3 to, 3 pairs of same image processing apparatus camera shootings
The image that device 2 acquires first carries out foreground segmentation, extracts the image of fiber end face 601, then carry out black white binarization processing, root
It is calculated according to the distribution and formation bright ring internal diameter R of end face black and white two-value, thus judge the cleannes of fiber end face, injury tolerance feelings
The radius of curvature approximate range of condition and fiber end face, and export corresponding instruction.It is 100 that the present embodiment, which takes a Gray-scale value,
Gray value is higher than 100 and regards as 255, and gray value regards as 0 less than or equal to 100, can be filled according to light source and camera shooting
The difference set etc. and take different threshold values to guarantee optimal effect；
Step d, step c calculates to the cleannes of gained fiber end face, data of injury tolerance and radius of curvature and predefined
Standard fiber end face cleannes, the data of injury tolerance and radius of curvature are compared, determine whether additional to fiber end face
Primary electric discharge；
If step e, it is predefined to be that cleannes, injury tolerance, radius of curvature meet for comparison result, end operation is simultaneously mentioned
Show that detection is shown in completion polishing, otherwise additional primary electric discharge hot melt processing, and repeat step c, d, e, until radius of curvature is lower than pre-
If minimum value, then end operation and prompt cutting optical fibre again.
The present embodiment light source uses annular light source, as shown in Fig. 2, annular light source 1 and optical fiber fixing groove 701 are opposite, it is described
The light and 701 axis of optical fiber fixing groove of light source transmitting are at 45 degree of incidences, after optical fiber 6 is fixed in optical fiber fixing groove 701,
Annular light source 1 is i.e. opposite with fiber end face 601, while the light that annular light source 1 emits also is incident at 45 degree with shaft axis of optic fibre
On fiber end face, when some light that fiber end face 601 emits there are a part of annular light source 1 of attachment can be reflected to multiplying power
It is received in object lens 201 by CCD chip 202, thus in circumferential profile at irregular bright blackening；When fiber end face 601 exists
The light that a part of annular light source 1 of cutting damage emits can be reflected in magnification objective 201 to be received by CCD chip 202, from
And irregular speck is formed in circumference；When fiber end face 601 has certain curvature radius, a part of annular light source 1 is sent out
The light penetrated can be reflected in magnification objective 201 in circumference annular region and be received by CCD chip 202, to be formed
Bright ring.The embodiment of the present invention uses annular light source, and professional and technical personnel in the field can be using two or more symmetrical
Point light source is incident, equally completes to calculate by the adjustment to algorithm in image processing apparatus.
As shown in Fig. 3 image processing algorithm, image processing apparatus 3 acquires the image to come to photographic device 2 and carries out prospect
The image of fiber end face 601 is obtained after segmentation, and image grayscale is calculated, while electricity is controlled by image processing apparatus 3
Machine actuating device 5 adjusts the position of fiber clamp device, to adjust and lock fiber end face 601 with respect to magnification objective 201
Position.And the focus of magnification objective is positioned at two electrodes 401,402 line midpoints, therefore reaches when fiber end face 601 is driven to
Two electrodes 401,402 lines midpoint when, image be it is clearest, gray value is minimum.Motor driver 5 stops driving at this time
And fiber clamp device 7 is locked, while image processing apparatus 3 exports electric discharge instruction to electric discharge device 4, then photographic device 2 is adopted
Collection image carries out foreground segmentation again and obtains the fiber end face image after heating that discharges, and sends this image to image procossing dress
It sets 3 carry out binary conversion treatments and calculates and determine the power cut-off as a result, if meeting predefined scope, and reset motor drive
Dynamic device 5 and fiber clamp device 7；Repeat the above steps if not meeting, until the cleannes of fiber end face, injury tolerance,
Radius of curvature meets predefined range or radius of curvature is too small and stop all working and outputting alarm while resetting motor
Driving device 5 and fiber clamp device 7.
As shown in figure 4, image processing apparatus 3 predefines the cleannes of fiber end face 601a, injury tolerance radius of curvature
Critical field parameter.Cleannes, fiber end face circumference are smooth complete；Injury tolerance, fiber end face circumference are interior without irregular speck；It is bent
The bright ring internal diameter of rate radius, formation should be in the section between circle of the circle that range is radius R1 to R2.The bigger bright ring of radius of curvature
Width is narrower, and internal diameter is bigger, otherwise the smaller bright ring width of fiber end face radius of curvature is wider, and internal diameter is smaller.In this implementation
In example, for the silica fibre of 125um diameter, if bright ring internal diameter R0 is greater than R2, then it represents that optical fiber curvature radius is excessive,
If bright ring internal diameter R0 is less than R1, then it represents that fiber end face radius of curvature is too small, and those skilled in the art can according to the above method
To be directed to the diameter of various optical fiber, using different multiplying object lens 201 and CCD chip 202, R1 can be calculated and adjusted by experiment
With the value of R2.
As shown in figure 5, fiber end face 601b circumference is smooth complete, then optical fiber cleannes are qualified after electric discharge hot melt；Optical fiber end
Without irregular speck in the 601b circumference of face, then optical fiber injury tolerance is qualified；The bright ring internal diameter R0 formed in fiber end face 601b circumference
It is less than R2 greater than R1, then assert radius of curvature for qualification.
As shown in fig. 6, i.e. there are the irradiations of attachment or the high annular light source 1 of injury tolerance for fiber end face 601c cleannes difference
Under, always have light and reflected and received outside circumference or formed in circumference by photographic device 2 speck, due to attachment and
Damage is irregular and random distribution so the speck of formation is similarly irregular and random distribution.And R0 is then greater than
R2 then illustrates that radius of curvature is excessive at this time, does not meet predetermined condition, then image processing apparatus 3 is once put to the addition of electric discharge device 4
The instruction of electricity, further primary electric discharge additional as long as two any one of cleannes and injury tolerance do not meet and preset.
Although being said as shown in fig. 7, fiber end face 601d irregular speck as present in Fig. 6 disappears after additional electric discharge
Bright fiber end face cleannes and injury tolerance meet the requirements, but the internal diameter R0 of bright ring is less than R1 at this time, show end face curvature half
Diameter is excessive, the then outputting alarm of image processing apparatus 3, it is desirable that cutting optical fibre again.
Those skilled in the art, can be by adjusting discharge time, electric current, black and white two for the silica fibre of different-diameter
Value threshold range achievees the effect that equally to polish and detect.
The present invention provides a kind of Method for Inspecting Optic Fiber End, has follow steps:
Step a heat fusion step carries out electric discharge hot melt processing to fiber end face using electric discharge device；
Step b binary conversion treatment step sends figure to using the fiber end face image that photographic device acquires after discharging hot melt
As device progress black white binarization processing, and according to the cleannes of processing data calculating fiber end face, injury tolerance and radius of curvature
Etc. data；
Step c judgment step, the cleannes that step c is calculated to gained fiber end face, the data of injury tolerance and radius of curvature
With the cleannes of predefined standard fiber end face, the data of injury tolerance and radius of curvature are compared, to determine whether to light
The additional primary electric discharge in fine end face；If it is predefined that comparison result is that cleannes, injury tolerance, radius of curvature meet, terminate to grasp
Make and prompts to complete to polish to see detection, otherwise additional primary electric discharge hot melt processing, and repetition step b, c, until fiber end face is bent
Rate radius is lower than preset minimum value, then end operation.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. fiber end face polishing and detection device, it is characterised in that: including power supply device, light source, photographic device, image procossing dress
Set, image display device, motor driver, electric discharge device, fiber clamp device, the power supply device be separately connected light source,
Photographic device, image processing apparatus, image display device, motor driver, electric discharge device；Image processing apparatus and camera shooting fill
It sets, the connection of image display device, motor driver, electric discharge device；Electric discharge device is made of electrode group, the fiber clamp dress
It sets and is connect with motor driver；Optical fiber fixing groove is arranged in fiber clamp device, and light source is opposite with optical fiber fixing groove, light source transmitting
Light and optical fiber fixing groove axis at incident angle；The incident angle is 45 degree；
The photographic device includes CCD chip and magnification objective, and focus is positioned at using the midpoint of electrode group axial connecting line as ball
The heart, radius are in the sphere of 1mm；
Image processing apparatus carries out the image of acquisition fiber end face after foreground segmentation to the image that photographic device acquisition comes, and
Image grayscale is calculated, while adjusting the position of fiber clamp device by image processing apparatus control motor driver,
To adjust and lock position of the fiber end face with respect to magnification objective；
Image processing apparatus predefines the cleannes of fiber end face, the critical field parameter of injury tolerance radius of curvature；Cleannes,
Fiber end face circumference is smooth complete；Injury tolerance, fiber end face circumference are interior without irregular speck；Radius of curvature, in the bright ring of formation
Diameter should be in the section between circle of the circle that range is radius R1 to R2；Radius of curvature is bigger, and bright ring width is narrower, and internal diameter is bigger,
Otherwise the smaller bright ring width of fiber end face radius of curvature is wider, and internal diameter is smaller.
2. fiber end face polishing according to claim 1 and detection device, it is characterised in that: the electrode group is right by two
Claim electrode composition.
3. fiber end face according to claim 1 polishing and detection device, it is characterised in that: the photographic device includes
CCD chip and magnification objective, focus are positioned at the midpoint of two electrode axial connecting lines.
4. fiber end face polishing according to claim 1 and detection device, it is characterised in that: the multiplying power of the photographic device
Object lens are opposite and coaxial with optical fiber fixing groove, and the axial connecting line of the two axial connecting line and two electrodes intersect it is angled.
5. fiber end face polishing according to claim 4 and detection device, it is characterised in that: the multiplying power of the photographic device
Object lens are opposite and coaxial with optical fiber fixing groove, and the axial connecting line intersecting angle of the two axial connecting line and two electrodes is 90 degree.
6. fiber end face according to any one of claims 1 to 5 polishing and detection device, it is characterised in that: the light source is
Annular light source or symmetrical light sources.
7. a kind of Method for Inspecting Optic Fiber End, it is characterised in that: have follow steps:
Step a electric discharge heat fusion step carries out electric discharge hot melt to fiber end face using electric discharge device and handles；
Step b image processing step, light source is opposite with optical fiber fixing groove, and the light and optical fiber fixing groove axis of light source transmitting are at 45
Degree is incident, after optical fiber is fixed in optical fiber fixing groove, light source be it is opposite with fiber end face, while the light of light source transmitting with
Shaft axis of optic fibre is also incident on fiber end face at 45 degree, when there are some lights of a part of light source transmitting of attachment for fiber end face
It can be reflected in magnification objective and be received by CCD chip；
Fiber end face image after being acquired electric discharge hot melt using photographic device is sent to image device and carries out black white binarization processing,
And the cleannes of fiber end face, injury tolerance and radius of curvature data are calculated according to processing data；
Image processing apparatus first carries out foreground segmentation to the image that photographic device acquires, and extracts the image of fiber end face, then into
The processing of row black white binarization according to the distribution of end face black and white two-value and forms bright ring internal diameter R calculating, to judge optical fiber end
The radius of curvature approximate range of the cleannes in face, injury tolerance situation and fiber end face, and export corresponding instruction；
Image processing apparatus predefines the critical field parameter of the cleannes of fiber end face, injury tolerance, radius of curvature；Cleaning
Degree, fiber end face circumference are smooth complete；Injury tolerance, fiber end face circumference are interior without irregular speck；Radius of curvature, the bright ring of formation
Internal diameter should be in the section between circle of the circle that range is radius R1 to R2；Radius of curvature is bigger, and bright ring width is narrower, and internal diameter is got over
Greatly, otherwise the smaller bright ring width of fiber end face radius of curvature is wider, and internal diameter is smaller；Step c spectral discrimination step, by step b
Calculate the cleannes of gained fiber end face, the cleaning of the data and predefined standard fiber end face of injury tolerance and radius of curvature
The data of degree, injury tolerance and radius of curvature are compared, to determine whether primary electric discharge additional to fiber end face；If comparing knot
It is predefined that fruit is that cleannes, injury tolerance, radius of curvature meet, then end operation and prompts to complete to polish, otherwise additional primary
It discharges hot melt processing, and repeats step b, c, until fiber end face radius of curvature is lower than preset minimum value, then end operation is simultaneously
Alarm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410713984.8A CN104536090B (en) | 2014-12-02 | 2014-12-02 | Method for Inspecting Optic Fiber End and fiber end face polishing and detection device |
| CN201910430030.9A CN110082860B (en) | 2014-12-02 | 2014-12-02 | Optical fiber end surface polishing detection equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410713984.8A CN104536090B (en) | 2014-12-02 | 2014-12-02 | Method for Inspecting Optic Fiber End and fiber end face polishing and detection device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910430030.9A Division CN110082860B (en) | 2014-12-02 | 2014-12-02 | Optical fiber end surface polishing detection equipment and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104536090A CN104536090A (en) | 2015-04-22 |
| CN104536090B true CN104536090B (en) | 2019-06-25 |
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| CN110082860A (en) | 2019-08-02 |
| CN110082860B (en) | 2021-11-23 |
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