CN104536090A - Optical fiber end face detecting method and optical fiber end face polishing and detecting equipment - Google Patents
Optical fiber end face detecting method and optical fiber end face polishing and detecting equipment Download PDFInfo
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- CN104536090A CN104536090A CN201410713984.8A CN201410713984A CN104536090A CN 104536090 A CN104536090 A CN 104536090A CN 201410713984 A CN201410713984 A CN 201410713984A CN 104536090 A CN104536090 A CN 104536090A
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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
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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
- G01N21/94—Investigating contamination, e.g. dust
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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
- 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
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- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention provides an optical fiber end face detecting method and a piece of optical fiber end face polishing and detecting equipment. The equipment comprises a power supply device, a light source, a camera device, an image processing device, an image display device, a motor driving device, a discharge device, and an optical fiber fixture device. The method comprises a discharge hot-melting step, an image processing step, and an image determining step. According to the optical fiber end face detecting method of the invention, an optical fiber end face is processed by a discharge hot-melting mode, the clean degree, damage degree, radius of curvature and other data of the optical fiber end face after processing can be detected automatically, the problem that the end face of an optical fiber is uneven and has cut marks due to optical fiber cutting is eliminated, and an effect of optical fiber end face polishing is achieved. An optical fiber end face after processing has good surface quality, uniformity and consistency, and can be quickly connected with other optical fibers without the need for other mechanical processing. The equipment of the invention has the advantages of small size, simple operation, and convenient on-site installation.
Description
Technical field
The present invention relates to communication facilities processing technique field, particularly relate to Method for Inspecting Optic Fiber End fiber end face situation being judged, detects, and the fiber end face polishing of application made by the method and checkout equipment.
Background technology
When making fiber active linker at the scene at present, only machine cuts carried out to optical fiber and any polishing do not carried out to fiber end face, simultaneously in manufacturing process also without any real-time testing tool, effect due to machine cuts depends on the precision of machine cuts cutter and the skill level of operating personnel, because above-mentioned two factors are not guaranteed in actual fabrication process, fiber end face quality and consistance is caused effectively to be ensured, excellence due to optical fiber field flexible connection optical property depends on the cleanliness of fiber end face, the factors such as injury tolerance and suitable radius-of-curvature, even if therefore machine cuts obtains good fiber end face, end face due to machine cuts is the requirement that plane cannot meet the radius-of-curvature of fiber end face, cause the poor effect that optical fibre connects, simultaneously because there is no real-time detection means, the quality of field optical fibers flexible jumper is caused to be guaranteed, although can temporarily eliminate some problems by adding optical fibre refractivity matching fluid in prior art, but there is easily loss in optical fibre refractivity matching fluid, the shortcomings such as easy pollution, optical fibre refractivity matching fluid reduces the reliability that optical fibre connects, thus cause the instability of the optical property of Fiber connection.
After keeping Fiber connection, there is stable excellent optical property, spherical polishing process to be carried out to fiber end face, also the equipment being carried out fiber end face process by electric discharge hot melting way is had in the prior art, such as optical fiber splicer etc., the effect eliminating fiber end face reflection is reached by hot melt fiber end face, but time at the construction field (site) to fibre junction, except there being the requirement of cleanliness and injury tolerance to fiber end face, also there is strict requirement to the diameter of fiber end face and radius-of-curvature, but the equipment such as optical fiber splicer can only observe optical fiber side, do not possess to fiber end face particularly fiber end face radius-of-curvature carry out calculate assessment function, when two optical fiber forever continue or do not need consider fiber end face diameter and radius-of-curvature, the equipment such as optical fiber splicer are used for the hot melt process carrying out fiber end face.
In prior art, also the polishing mode of mechanical lapping is used to carry out polishing to fiber end face, the fiber end face of certain radius-of-curvature can be obtained like this, thus ensure the excellence of optical property, but the grinding technics of the polishing mode of mechanical lapping is complicated, equipment volume is larger, for at factory or scene, if adopt the polishing mode of mechanical lapping, then operation is relatively loaded down with trivial details, and fiber end face quality of finish must be checked by special fiber end face scope after grinding step terminates, if there is the situation that polishing effect is not good, need repetition grinding step even to be done by the joints of optical fibre and scrap process, the polishing mode of mechanical lapping simultaneously needs the diamond polishing paper used to belong to expensive consumptive material, add the cost of single core processing, therefore be unfavorable for optical fiber field operation in the polishing mode of factory or the on-the-spot mechanical lapping adopted and use.
Summary of the invention
For above-mentioned defect and the problem of prior art, the object of the invention is to provide a kind of fiber end face polishing and checkout equipment, the process of electric discharge hot melt is carried out to fiber cut end face, guarantee the cleanliness of fiber end face, the consistance of injury tolerance and end face radius-of-curvature, and after the process of electric discharge hot melt is carried out to fiber end face, Real-time Collection fiber end face image, send the fiber end face image of display screen for observing to, send image processing apparatus simultaneously to and carry out black white binarization process for calculating the cleanliness of fiber end face, injury tolerance and radius-of-curvature, and according to optical reflection principle, automatically fiber end face hot melt situation is judged by image processing apparatus, cleaned to ensure fiber end face attachment to determine whether needing additional single step of releasing electric heating melting, cutting damage is repaired and forms suitable radius-of-curvature, present invention also offers a kind of Method for Inspecting Optic Fiber End, can realize judging fiber end face fast and detecting cleanliness by computer technology, injury tolerance and radius-of-curvature.
In order to achieve the above object, the invention provides following technical scheme:
Fiber end face polishing and checkout equipment, comprise supply unit, light source, camera head, image processing apparatus, image display device, motor driver, electric discharge device, fiber clamp device, described supply unit connects light source, camera head, image processing apparatus, image display device, motor driver, electric discharge device respectively; Image processing apparatus is connected with camera head, image display device, motor driver, electric discharge device; Electric discharge device is made up of electrode group, and described fiber clamp device is connected with motor driver; Fiber clamp device arranges optical fiber fixing groove, and light source is relative with optical fiber fixing groove.
In technique scheme, described electrode group is made up of two symmetry electrodes.
In technique scheme, described camera head comprises CCD chip and magnification objective, and its focus is positioned with the mid point of two symmetry electrode axial connecting lines for the centre of sphere, and radius is in the sphere of 1mm, is preferably positioned the mid point of two electrode axial connecting lines.
In technique scheme, the magnification objective of described camera head is relative with optical fiber fixing groove and coaxial, and the axial connecting line of the two axial connecting line and two electrodes is crossed as angle, and this angle is preferably 90 degree.
In technique scheme, described light source is annular light source or symmetrical light sources.
In technique scheme, the light that described light source is launched becomes incident angle with optical fiber fixing groove axis.
Preferred technical scheme, described incident angle is 45 degree.
The present invention also provides a kind of Method for Inspecting Optic Fiber End, has following steps:
Step a discharges heat fusion step, utilizes electric discharge device to carry out the process of electric discharge hot melt to fiber end face;
Step b image processing step, utilize the camera head collection fiber end face image after hot melt that discharges to send image device to and carry out black white binarization process, and calculate the cleanliness of fiber end face according to process data, the data such as injury tolerance and radius-of-curvature;
Step c spectral discrimination step, step c is calculated the cleanliness of gained fiber end face, the data of injury tolerance and radius-of-curvature and the cleanliness of predefined standard fiber end face, the data of injury tolerance and radius-of-curvature are compared, and once discharge to determine whether to add fiber end face; If comparison result is cleanliness, injury tolerance, radius-of-curvature all meet predefine, then end operation has also pointed out polishing, otherwise adds the process of single step of releasing electric heating melting, and repeats step b, c, until fiber end face radius-of-curvature is lower than the minimum value preset, then end operation alarm.
Method for Inspecting Optic Fiber End of the present invention utilizes the mode process fiber end face of electric discharge hot melt, can to the cleanliness of the fiber end face after process, injury tolerance, the data such as radius-of-curvature detect automatically, eliminating fiber cut brings end face uneven and there is the problems such as cut channel, to reach the effect of polishing fiber end face, fiber end face after process has good surface quality, homogeneity and consistance, do not need just to carry out fast splicing with other optical fiber into going other mechanical treatment again, equipment of the present invention has compact, easy and simple to handle, be convenient to the field erected feature of user.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying 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 process flow diagram.
The fiber end face schematic diagram that Fig. 4 predefine is qualified.
Fig. 5 is fiber end face schematic diagram qualified after electric discharge hot melt.
Fig. 6 is the fiber end face schematic diagram that after electric discharge hot melt, cleanliness are poor, injury tolerance is high, radius-of-curvature is excessive.
Fig. 7 is the fiber end face schematic diagram that after electric discharge hot melt, radius-of-curvature is too small.
Embodiment
Below in conjunction with accompanying drawing of the present invention, be clearly and completely described technical scheme of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides embodiment, to be directed to diameter be that the silica fibre of 125um has carried out example.
As shown in Figure 1, as the fiber end face polishing shown in embodiment and checkout equipment, comprise supply unit 8, light source 1, camera head 2, image processing apparatus 3, image display device 9, motor driver 5, electric discharge device 4, fiber clamp device 7.Described image processing apparatus 3 is for possessing the microcomputer of data processing function, and image processing apparatus 3 is connected by data line with camera head 2, motor driver 5, image display device 9, electric discharge device 4.Supply unit connects light source, camera head, image processing apparatus, image display device, motor driver, electric discharge device respectively also for these devices are powered.
Described motor driver 5 is miniwatt micro-step motor, fiber clamp device 7 can be driven to seesaw, fiber clamp device 7 is provided with optical fiber fixing groove 701, optical fiber fixing groove 701 be channel shape or other can the straight way of fixed fiber, the axis being fixed on optical fiber in optical fiber fixing groove 701 is the axis of optical fiber fixing groove.Camera head 2 comprises magnification objective 201 and CCD chip 202, the focus of camera head 2 is positioned with the mid point of two coaxial electrode 401,402 lines as the centre of sphere, radius is in the sphere of 1mm, the focus of the present embodiment camera head 2 is positioned the mid point of two symmetry electrode lines, magnification objective 201 is relative with optical fiber fixing groove 701 and coaxial, the Axis Cross of its axis and coaxial electrode 401,402 is angled, and the coaxial magnification objective 201 of the present embodiment becomes 90 degree with the axis of optical fiber fixing groove 701 with the Axis Cross of coaxial two electrodes 401,402.
As shown in Figure 2, because optical fiber fixing groove 701 is relative with magnification objective and coaxial, so after pending optical fiber 6 is fixed in optical fiber fixing groove 701, magnification objective 201 is relative with fiber end face 601 and coaxial, in the present embodiment, the focus of camera head 2 is positioned the mid point of two symmetry electrodes 401,402 line, so when fiber end face 601 moves to the point midway of two symmetry electrodes 401,402 line, camera head 2 can obtain fiber end face image the most clearly.
Fiber end face polishing of the present invention and checkout equipment service routine are:
Step a, to be driven fiber clamp device 7 axially movable along magnification objective 201 by motor driver 5, carry out gray count by the end face 601 of grip optical fiber on image processing apparatus 3 pairs of fiber clamp devices 7, gray-scale value meets predefine value to be stopped driving;
Step b, electric discharge device is utilized to carry out the process of electric discharge hot melt to fiber end face, now image processing apparatus 3 exports electric discharge instruction to electric discharge device 4, electric discharge device is by the sparking electrode 401 of symmetric coaxial, 402 produce high-temperature electric arc, form arc region, be in two symmetry electrodes 401, the fiber end face 601 of the point midway of 402 lines is by electric arc quantitative heating and then partial melting, thus formation is suitable for the end face with other coupling fibers, effective raising fibre junction quality, avoid the pretreatment process end face of optical fiber being carried out to mechanical grinding and so on before continuing, accelerate handshaking procedure.The electric discharge device 4 of the embodiment of the present invention presets two groups of specific discharge currents and discharge time, and first group of short time, low current, for tentatively clean fiber end face, time is 0.1S, and electric current is 0.5A, second group leader's time, big current, time is 0.5S, and electric current is 1.5A.Different time according to fibre diameter can select 0.5 ~ 2S, and electric current can select 0.5 ~ 2A.Professional and technical personnel in the field, also by experiment, when the fiber end face of different size processes, can adjust the default discharge current of electric discharge device 4 and discharge time, thus obtain corresponding rational parameter;
Step c, utilize the fiber end face image after camera head collection electric discharge hot melt to send image device to and carry out black white binarization process, and the cleanliness of fiber end face are calculated according to process data, the data such as injury tolerance and radius-of-curvature, namely the fiber end face after camera head 2 gathers electric discharge melting again also sends image processing apparatus 3 to, the image that same image processing apparatus 3 pairs of camera heads 2 gather first carries out foreground segmentation, extract the image of fiber end face 601, carry out black white binarization process again, according to distribution and the formation bright ring internal diameter R calculating of end face black and white two-value, thus judge the cleanliness of fiber end face, the radius-of-curvature approximate range of injury tolerance situation and fiber end face, and export corresponding instruction.It is 100 that the present embodiment gets a Gray-scale value, and gray-scale value regards as 255 higher than 100, and gray-scale value regards as 0 less than or equal to 100, can get different threshold values to ensure best effect according to the difference of light source and camera head etc.;
Steps d, step c is calculated the cleanliness of gained fiber end face, the data of injury tolerance and radius-of-curvature and the cleanliness of predefined standard fiber end face, the data of injury tolerance and radius-of-curvature are compared, and determine whether once to discharge to fiber end face is additional;
If step e comparison result is cleanliness, injury tolerance, radius-of-curvature all meet predefine, then end operation has also pointed out polishing to see detection, otherwise add the process of single step of releasing electric heating melting, and repeat step c, d, e, until radius-of-curvature is lower than the minimum value preset, then end operation point out cutting optical fibre again.
The present embodiment light source adopts annular light source, as shown in Figure 2, annular light source 1 is relative with optical fiber fixing groove 701, the light that described light source is launched becomes 45 degree of incidences with optical fiber fixing groove 701 axis, after optical fiber 6 is fixed in optical fiber fixing groove 701, annular light source 1 is namely relative with fiber end face 601, the light that annular light source 1 is launched simultaneously also becomes 45 degree to incide on fiber end face with shaft axis of optic fibre, can be reflected in magnification objective 201 received by CCD chip 202 when fiber end face 601 exists the some light that attachment part annular light source 1 launches, thus become irregular bright blackening at circumferential profile, can be reflected in magnification objective 201 received by CCD chip 202 when fiber end face 601 exists the light that cutting damage part annular light source 1 launches, thus in circumference, form irregular speck, when fiber end face 601 has certain curvature radius, the light that a part of annular light source 1 is launched can be reflected in annular region in magnification objective 201 and be received by CCD chip 202 in circumference, thus forms bright ring.The embodiment of the present invention uses annular light source, and professional and technical personnel in the field can adopt two and above symmetric points light source incidence, by completing calculating equally to the adjustment of algorithm in image processing apparatus.
As shown in Fig. 3 image processing algorithm, image processing apparatus 3 pairs of camera heads 2 gather the image obtaining fiber end face 601 after the image of coming carries out foreground segmentation, and gradation of image is calculated, control by image processing apparatus 3 position that motor driver 5 adjusts fiber clamp device, so that adjustment and the position locking the relative magnification objective 201 of fiber end face 601 simultaneously.And the focus of magnification objective is positioned two electrode 401,402 line mid points, therefore when fiber end face 601 is driven to the mid point reaching two electrode 401,402 lines, image is the most clearly, and gray-scale value is minimum.Now motor driver 5 stops driving and locking fiber clamp device 7, image processing apparatus 3 pairs of electric discharge devices 4 export electric discharge instruction simultaneously, then camera head 2 gather image carry out again foreground segmentation obtain electric discharge hot melt after fiber end face image, and this image is sent to image processing apparatus 3 carry out binary conversion treatment and calculate and result of determination, if meet predefine scope, then power cut-off, and reset motor driver 5 and fiber clamp device 7; If do not met, repeat above-mentioned steps, until the cleanliness of fiber end face, injury tolerance, radius-of-curvature meet predefined scope, or radius-of-curvature is too small and stop all working and outputting alarm reset motor driver 5 and fiber clamp device 7 simultaneously.
As shown in Figure 4, image processing apparatus 3 predefines the cleanliness of fiber end face 601a, the critical field parameter of injury tolerance radius-of-curvature.Cleanliness, fiber end face circumference is smooth complete; Injury tolerance, without irregular speck in fiber end face circumference; Radius-of-curvature, the bright ring internal diameter of formation should scope be radius R 1 circle to R2 circle between interval.The larger bright ring width of radius-of-curvature is narrower, and its internal diameter is larger, otherwise the less bright ring width of fiber end face radius-of-curvature is wider, and its internal diameter is less.In the present embodiment, for the silica fibre of 125um diameter, if bright ring internal diameter R0 is greater than R2, then represent that optical fiber curvature radius is excessive, if bright ring internal diameter R0 is less than R1, then represent that fiber end face radius-of-curvature is too small, those skilled in the art can for the diameter of various optical fiber according to said method, adopt different multiplying object lens 201 and CCD chip 202, can calculate and adjust the value of R1 and R2 by experiment.
As shown in Figure 5, after electric discharge hot melt, fiber end face 601b circumference is smooth complete, then optical fiber cleanliness are qualified; Without irregular speck in fiber end face 601b circumference, then optical fiber injury tolerance is qualified; The bright ring internal diameter R0 formed in fiber end face 601b circumference is greater than R1 and is less than R2, then assert that radius-of-curvature is qualified.
As shown in Figure 6, namely under there is the irradiation of attachment or injury tolerance height annular light source 1 in fiber end face 601c cleanliness difference, always have light to be reflected and be caught on camera device 2 and receive in or circumference outer at circumference and form speck, due to attachment and damage be irregular and stochastic distribution so the speck formed is irregular and stochastic distribution too.R0 is then greater than R2, then illustrate that now radius-of-curvature is excessive, do not meet predetermined condition, then image processing apparatus 3 adds the instruction of once discharging to electric discharge device 4, if further cleanliness and injury tolerance two any one do not meet to preset just to add and once discharge.
As shown in Figure 7, although the irregular speck of fiber end face 601d as existed in Fig. 6 disappears after adding electric discharge, illustrate that fiber end face cleanliness and injury tolerance all meet the requirements, but now the internal diameter R0 of bright ring is less than R1, show that end face radius-of-curvature is excessive, image processing apparatus 3 outputting alarms, require cutting optical fibre again.
Those skilled in the art, the silica fibre for different-diameter can reach the effect of same polishing and detection by adjustment discharge time, electric current, black and white two-value threshold range.
The invention provides a kind of Method for Inspecting Optic Fiber End, there are following steps:
Step a heat fusion step, electric discharge device is utilized to carry out the process of electric discharge hot melt to fiber end face;
Step b binary conversion treatment step, utilize the camera head collection fiber end face image after hot melt that discharges to send image device to and carry out black white binarization process, and calculate the cleanliness of fiber end face according to process data, the data such as injury tolerance and radius-of-curvature;
Step c determining step, step c is calculated the cleanliness of gained fiber end face, the data of injury tolerance and radius-of-curvature and the cleanliness of predefined standard fiber end face, the data of injury tolerance and radius-of-curvature are compared, and once discharge to determine whether to add fiber end face; If comparison result is cleanliness, injury tolerance, radius-of-curvature all meet predefine, then end operation has also pointed out polishing to see detection, otherwise adds the process of single step of releasing electric heating melting, and repeats step b, c, until fiber end face radius-of-curvature is lower than the minimum value preset, then end operation.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. fiber end face polishing and checkout equipment, it is characterized in that: comprise supply unit, light source, camera head, image processing apparatus, image display device, motor driver, electric discharge device, fiber clamp device, described supply unit connects light source, camera head, image processing apparatus, image display device, motor driver, electric discharge device respectively; Image processing apparatus is connected with camera head, image display device, motor driver, electric discharge device; Electric discharge device is made up of electrode group, and described fiber clamp device is connected with motor driver; Fiber clamp device arranges optical fiber fixing groove, and light source is relative with optical fiber fixing groove.
2. fiber end face polishing according to claim 1 and checkout equipment, is characterized in that: described electrode group is made up of two symmetry electrodes.
3. fiber end face polishing according to claim 1 and checkout equipment, it is characterized in that: described camera head comprises CCD chip and magnification objective, its focus is positioned with the mid point of two symmetry electrode axial connecting lines for the centre of sphere, and radius is in the sphere of 1mm.
4. fiber end face polishing according to claim 3 and checkout equipment, is characterized in that: described camera head comprises CCD chip and magnification objective, its focus is positioned the mid point of two electrode axial connecting lines.
5. fiber end face polishing according to claim 1 and checkout equipment, is characterized in that: the magnification objective of described camera head is relative with optical fiber fixing groove and coaxial, and the axial connecting line of the two axial connecting line and two electrodes is crossed as angle.
6. fiber end face polishing according to claim 5 and checkout equipment, is characterized in that: the magnification objective of described camera head is relative with optical fiber fixing groove and coaxial, and the axial connecting line intersecting angle of the two axial connecting line and two electrodes is 90 degree.
7., according to the arbitrary described fiber end face polishing of claim 1 to 6 and checkout equipment, it is characterized in that: described light source is annular light source or symmetrical light sources.
8., according to the arbitrary described fiber end face polishing of claim 1 to 6 and checkout equipment, it is characterized in that: the light that described light source is launched becomes incident angle with optical fiber fixing groove axis.
9. fiber end face polishing according to claim 8 and checkout equipment, is characterized in that: described incident angle is 45 degree.
10. a Method for Inspecting Optic Fiber End, is characterized in that: have following steps:
Step a discharges heat fusion step, utilizes electric discharge device to carry out the process of electric discharge hot melt to fiber end face;
Step b image processing step, utilize the camera head collection fiber end face image after hot melt that discharges to send image device to and carry out black white binarization process, and calculate the cleanliness of fiber end face according to process data, the data such as injury tolerance and radius-of-curvature;
Step c spectral discrimination step, step c is calculated the cleanliness of gained fiber end face, the data of injury tolerance and radius-of-curvature and the cleanliness of predefined standard fiber end face, the data of injury tolerance and radius-of-curvature are compared, and once discharge to determine whether to add fiber end face; If comparison result is cleanliness, injury tolerance, radius-of-curvature all meet predefine, then end operation has also pointed out polishing, otherwise adds the process of single step of releasing electric heating melting, and repeats step b, c, until fiber end face radius-of-curvature is lower than the minimum value preset, then end operation alarm.
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| 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 |
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| CN107632344A (en) * | 2017-11-02 | 2018-01-26 | 诺仪器（中国）有限公司 | The fiber end face Solid rocket engine method and system of optical fiber splicer |
| CN108663370A (en) * | 2017-03-27 | 2018-10-16 | 安立股份有限公司 | End face check device and its focusedimage data capture method |
| CN108692915A (en) * | 2018-04-28 | 2018-10-23 | 武汉懒蚁科技有限公司 | A kind of fiber end inspection device |
| CN108957630A (en) * | 2018-07-12 | 2018-12-07 | 苏州席正通信科技有限公司 | A kind of production method of long-focus lens optical fiber |
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