CN205121035U - Optic fibre is special fiber reel of curved test a little - Google Patents
Optic fibre is special fiber reel of curved test a little Download PDFInfo
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- CN205121035U CN205121035U CN201520925847.0U CN201520925847U CN205121035U CN 205121035 U CN205121035 U CN 205121035U CN 201520925847 U CN201520925847 U CN 201520925847U CN 205121035 U CN205121035 U CN 205121035U
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Abstract
The utility model provides an optic fibre is special fiber reel of curved test a little, the one deck abrasive paper that sets up on fiber reel body and fiber reel body, the smooth parcel of abrasive paper is in the surface of after -combustion optic fibre department on the fiber reel body. The elastic press block who is equipped with the card wire casing on the fiber reel body and matches with calorie wire casing, elastic press block fills in in the card wire casing. The utility model discloses use at optic fibre not during the stranding, can simulate optic fibre after -combustion to this fiber reel that awaits measuring external factor and produce inhomogeneous stress to optic fibre, measure the additional decay that optic fibre causes and bend a little promptly from natural state to the emulation mode. Guaranteed the accurate reliable of test result, abrasive paper can be changed, and the fiber reel can reuse, material saving, and convenient to use is effectual, simultaneously low cost.
Description
Technical field
The utility model belongs to optical fiber production technical field, especially relates to a kind of optical fiber micro-bending test special optic fibre dish.
Background technology
Along with Networks of Fiber Communications develops rapidly, the 4G of domestic three large operators competes state of having reached the decisive stage, and requires also more and more higher, wherein it is also proposed higher requirement to fiber attenuation coefficient to the technical parameter of supplier products.In order to adapt to development Networks of Fiber Communications, optical fiber factory also in constantly technological innovation, have developed low loss fiber, even ultra-low-loss fiber in decay; What not paid attention to by people is micro-curved, also enters research theme at leisure.So-called microbending loss is the loss because distortion that shaft axis of optic fibre is small causes, and distortion small on these axis is because optical fiber is subject to uneven effect of stress.True qualities optical fiber produces and is micro-ly curvedly solidified by formulation for coating material, wire drawing that the operational characteristiies such as bad, wire drawing PMD rubbing, main traction belts determine, the optical fiber after stranding produces micro-curved, by assembling optical cable process, lays optical cable installation process and environment temperature causes; And the randomness of external factor and inevitable property, have impact on the stability of optical cable attenuation test further, therefore, provide merely the pad value of each wavelength of optical fiber can not meet the demand of client.Therefore need when the non-stranding of optical fiber, simulation external factor produces uneven stress to optical fiber, the additional attenuation of measuring optical fiber caused by from state of nature to emulation mode and micro-curved.
Utility model content
In view of this, the utility model is intended to propose a kind of optical fiber micro-bending test special optic fibre dish, when the non-stranding of optical fiber, external factor can be simulated by this fiber reel after-combustion optical fiber and uneven stress is produced to optical fiber, the additional attenuation of measuring optical fiber caused by from state of nature to emulation mode and micro-curved.
For achieving the above object, the technical solution of the utility model is achieved in that
A kind of optical fiber micro-bending test special optic fibre dish, comprises one deck sand paper that fiber reel body and fiber reel body are arranged; The surface at what described sand paper was smooth be wrapped in after-combustion optical fiber place on described fiber reel body.
Further, described sand paper is pasted onto on described fiber reel body.
Further, the radius >=140mm of described fiber reel body.
Further, described sand paper fineness specification is P320.
Further, the elastic press described fiber reel body being also provided with cable clamping interface and mating with cable clamping interface; Described elastic press is filled in cable clamping interface.
Further, described fiber reel body adopts quartz one-body molded.
Relative to prior art, the utility model has following advantage:
Can when optical fiber micro-bending is tested by optical fiber after-combustion on the uneven surface of this fiber reel sand paper, and under making optical fiber be in certain tension force, simulate external factor to optical fiber cause micro-curved, sand paper can be changed, fiber reel can reuse, and saves material, easy to use and reliable, effective, simultaneously with low cost.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the enlarged drawing of A place structure in Fig. 1;
Fig. 3 is optical fiber micro-bending decay schematic diagram in the utility model embodiment.
Description of reference numerals:
1-fiber reel body, 2-sand paper, 3-cable clamping interface, 4-elastic press.
Embodiment
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
A kind of optical fiber micro-bending test special optic fibre dish, as shown in Figure 1, comprises one deck sand paper 2 that fiber reel body 1 and fiber reel body 1 are arranged; The surface at what described sand paper 2 was smooth be wrapped in after-combustion optical fiber place on described fiber reel body 1, it should be noted that sand paper 2 only arranges one deck at fiber reel body 1 circumferential outer surface in order to ensure that optical fiber micro-bending test result is accurate, sand paper 2 seam crossing should smooth, alignment.The optical fiber of after-combustion acts on sand paper 2 with some tension, and because power is mutual, optical fiber also receives effect of stress uneven on sand paper 2, simulate optical fiber cabling or construction time external factor cause micro-curved.
After this multiple use, on sand paper 2, sand grains is rubbed off gradually, and therefore, the sand paper 2 on described fiber reel body 1 is adopted the mode fastened with glue and fixed, and when sand paper 2 wears, can change, and fiber reel body 1 can be reused, and saves material.
Wherein, the radius >=140mm of described fiber reel body 1, optical fiber after-combustion, when fiber reel body 1, can not damage optical fiber, avoids optical fiber and produces macrobend attenuation, ensure the accuracy of test result.
For ensure more to press close to real simulation external factor to optical fiber cause micro-curved, described sand paper 2 preferably specification is the sand paper of P320, and degree of roughness is close with actual operating mode.
As shown in Figure 2, described fiber reel body 1 is also provided with cable clamping interface 3 and the elastic press 4 that mates with cable clamping interface 3; Described elastic press 4 is filled in cable clamping interface 3, can be pressed in cable clamping interface with elastic press 4, avoid loose coming off by the testing fiber termination of after-combustion in this special optic fibre dish basis.It is pointed out that elastic press 4 can be sponge block, block rubber or soft cloth block, optic fibre end can be pressed in cable clamping interface 3 internal fixtion.
Therefore, when carrying out micro-curved test, can by a group of people by testing fiber after-combustion on this special optic fibre dish, the fiber reel being fixed with testing fiber is transported to the region that another a group of people carries out testing, work efficiency is higher, transport process, and testing fiber can not come off from fiber reel.
Wherein, described fiber reel body 1 adopts quartz one-body molded, and not easily stress deformation, ensure that the accuracy of test result.
The following describes the embody rule utilizing this fiber reel to carry out optical fiber micro-bending experiment:
1, quartzy measuring fiber dish is made: axial length is 280mm, and diameter is 280mm;
2, the sand paper of fineness specification P320 is prepared;
3, even and smooth for sand paper is pasted onto on quartzy measuring fiber dish;
4, random choose 4 coils G652D single-mode fiber, carries out outer end 500m attenuation test;
Test result is as following table 1:
The fine outer end 500m attenuation test result of table 1 sample
| Attenuation coefficient | Sample 1 | Sample 2 | Sample 3 | Sample 4 |
| 1310nm(dB/km) | 0.334 | 0.327 | 0.333 | 0.333 |
| 1550nm(dB/km) | 0.187 | 0.189 | 0.200 | 0.192 |
| 1625nm(dB/km) | 0.240 | 0.216 | 0.203 | 0.215 |
5, by above-mentioned 4 coiled optical fibers one by one with 1 ± 5%N tension force, the after-combustion of 50m/min speed on the measuring fiber dish of diameter 280mm;
6, treat after after-combustion, close screening machine power supply, be more than 2h by the measuring fiber dish horizontal rest time good for after-combustion, make optical fiber fully discharge the unrelieved stress produced in winding process, then carry out attenuation test, test result is as following table 2:
Attenuation test result after the fine after-combustion of table 2 sample
| Attenuation coefficient | Sample 1 | Sample 2 | Sample 3 | Sample 4 |
| 1310nm(dB/km) | 0.477 | 0.468 | 0.453 | 0.460 |
| 1550nm(dB/km) | 0.604 | 0.572 | 0.548 | 0.580 |
| 1625nm(dB/km) | 0.896 | 0.849 | 0.776 | 0.842 |
7, namely draw the micro-curved of 4 dish sample fibres, result is as following table 3:
Table 3 sample is fine micro-curved
| Attenuation coefficient | Sample 1 | Sample 2 | Sample 3 | Sample 4 |
| 1310nm(dB/km) | 0.143 | 0.141 | 0.120 | 0.127 |
| 1550nm(dB/km) | 0.417 | 0.383 | 0.348 | 0.388 |
| 1625nm(dB/km) | 0.656 | 0.633 | 0.573 | 0.627 |
Optical fiber micro-bending decay schematic diagram as shown in Figure 3 can be made.
As known from the above, when optical fiber micro-bending is tested, by optical fiber after-combustion on the uneven surface of this fiber reel sand paper, and make optical fiber be in certain tension force, simulate external factor to optical fiber cause micro-curved, sand paper can be changed, fiber reel can reuse, and saves material, easy to use and reliable, effective, simultaneously with low cost.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. an optical fiber micro-bending test special optic fibre dish, is characterized in that: comprise one deck sand paper that fiber reel body and fiber reel body are arranged; The surface at what described sand paper was smooth be wrapped in after-combustion optical fiber place on described fiber reel body.
2. a kind of optical fiber micro-bending test special optic fibre dish according to claim 1, is characterized in that: described sand paper is pasted onto on described fiber reel body.
3. a kind of optical fiber micro-bending test special optic fibre dish according to claim 1, is characterized in that: the radius >=140mm of described fiber reel body.
4. a kind of optical fiber micro-bending test special optic fibre dish according to claim 1, is characterized in that: described sand paper fineness specification is P320.
5. a kind of optical fiber micro-bending test special optic fibre dish according to claim 1, is characterized in that: the elastic press described fiber reel body being also provided with cable clamping interface and mating with cable clamping interface; Described elastic press is filled in cable clamping interface.
6. a kind of optical fiber micro-bending test special optic fibre dish according to claim 1, is characterized in that: described fiber reel body adopts quartz one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925847.0U CN205121035U (en) | 2015-11-18 | 2015-11-18 | Optic fibre is special fiber reel of curved test a little |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925847.0U CN205121035U (en) | 2015-11-18 | 2015-11-18 | Optic fibre is special fiber reel of curved test a little |
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| Publication Number | Publication Date |
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| CN205121035U true CN205121035U (en) | 2016-03-30 |
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| CN201520925847.0U Active CN205121035U (en) | 2015-11-18 | 2015-11-18 | Optic fibre is special fiber reel of curved test a little |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301725A (en) * | 2015-11-18 | 2016-02-03 | 通鼎互联信息股份有限公司 | Fiber micro-bend test method and special fiber reel |
| CN111829754A (en) * | 2020-08-31 | 2020-10-27 | 成都泰瑞通信设备检测有限公司 | Optical fiber microbend test device, test system and test method for slotting on outer surface of metal cylinder |
| CN111896225A (en) * | 2020-08-31 | 2020-11-06 | 成都泰瑞通信设备检测有限公司 | Optical fiber microbend test device, test system and test method for spraying emery on outer surface of metal cylinder |
-
2015
- 2015-11-18 CN CN201520925847.0U patent/CN205121035U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301725A (en) * | 2015-11-18 | 2016-02-03 | 通鼎互联信息股份有限公司 | Fiber micro-bend test method and special fiber reel |
| CN111829754A (en) * | 2020-08-31 | 2020-10-27 | 成都泰瑞通信设备检测有限公司 | Optical fiber microbend test device, test system and test method for slotting on outer surface of metal cylinder |
| CN111896225A (en) * | 2020-08-31 | 2020-11-06 | 成都泰瑞通信设备检测有限公司 | Optical fiber microbend test device, test system and test method for spraying emery on outer surface of metal cylinder |
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