CN204855856U - Optic fibre length loss standard transfer device - Google Patents
Optic fibre length loss standard transfer device Download PDFInfo
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- CN204855856U CN204855856U CN201520560377.2U CN201520560377U CN204855856U CN 204855856 U CN204855856 U CN 204855856U CN 201520560377 U CN201520560377 U CN 201520560377U CN 204855856 U CN204855856 U CN 204855856U
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Abstract
The utility model discloses an optic fibre length loss standard transfer device belongs to optic fibre length loss measurement field, including the shell, install the support of fixing fiber coupler and optical fiber jumper wire in the shell, still be provided with two fiber reels, fiber reel fixed part, standard optic fibre and one 2 2 fiber coupler in the shell, fiber reel fixed part includes metal fixed axle and fiber reel fixed bolster, the metal fixed axle passes the internal diameter of two fiber reels, fixes two fiber reels through the screw on the fiber reel fixed bolster. The utility model discloses a regard the annular optic fibre in the optic fibre length transmission standard as fibre loss transmission standard, reduced the quantity that the fiber reel used, reduced standard transfer device's cost, lightened standard transfer device's weight, conveniently go out to carry, utilize metal fixed axle and fiber reel fixed bolster to carry out horizontal vertical fixing with two fiber reels, avoided arousing the fibercuts because of the axial displacement of fiber reel.
Description
Technical field
The utility model belongs to fiber lengths loss metering field, is specifically related to a kind of fiber lengths loss standard transfer device.
Background technology
Optical fiber has the advantages such as volume is little, lightweight, bandwidth, cost are low, antijamming capability is strong, and therefore optical fiber is just developed rapidly once appearance, is widely used in optical fiber communication and sensory field of optic fibre.And optical time domain reflectometer is as optical fiber development, production, the requisite instrument of installation and maintenance, its measurement accuracy directly determines the quality of optical fiber production and the maintenance efficiency of fault.Therefore developing fiber lengths loss Transfer Standards accurately measures significant to guarantee optical time domain reflectometer.
Optical time domain reflectometer research and production unit domestic at present normally solves the magnitude tracing problem of optical time domain reflectometer length and loss respectively by fiber lengths Transfer Standards and fibre loss Transfer Standards.Optical fiber loop related method thereof is adopted to calibrate tested optical time domain reflectometer in the document of aerospace measurement technical journal volume the 5th phase October the 30th in 2010 " optical time domain reflection meter calibrating and analysis of uncertainty in measurement thereof " by name, but in the method, optical time domain reflectometer length is separated with the transmission of quantity value of loss, namely fiber lengths loss Transfer Standards is by designing fiber lengths Transfer Standards respectively and fibre loss Transfer Standards carries out transmission of quantity value to fiber lengths and fibre loss respectively, therefore can there are the following problems:
1, large, the Heavy Weight of volume, is not easy to carry, is unfavorable for visiting and carries out metering service work;
2, optical fiber is long, dish number is many, cost is high, is unfavorable for mass production;
3, adopt fashion of extrusion to be fixed in cabinet by fiber reel, can wearing and tearing be produced in long-time between the axle of fixed fiber dish and deck, fiber reel can be caused to rotate around stationary shaft, thus cause optical fiber easily to rupture.
Utility model content
For the above-mentioned technical matters existed in prior art, the utility model proposes a kind of fiber lengths loss standard transfer device, reasonable in design, overcome the deficiencies in the prior art, easy to maintenance, cost-saving, there is good effect.
To achieve these goals, the utility model adopts following technical scheme:
A kind of fiber lengths loss standard transfer device, comprises shell.The front panel of described shell is provided with fibre-optical splice cover plate, the support of fixed fiber coupling mechanism and optical patchcord is installed in described shell, the support of described fixed fiber coupling mechanism and optical patchcord is fixed on the bottom panel of shell by counterbore screw, and the support of described fixed fiber coupling mechanism and optical patchcord is provided with optical fibre reel and fixture.Two fiber reels, fiber reel fixed part, standard fiber and 2 × 2 fiber couplers are also provided with in described shell.Described standard fiber forms by two sections, and wherein one section of optical fiber is for guiding optical fiber, and another section of optical fiber is optical fibre ring, and described guiding optical fiber is connected by 2 × 2 fiber couplers with optical fibre ring.Described fiber reel fixed part comprises metal stationary shaft and fiber reel fixed support, and two fiber reels, through the internal diameter of two fiber reels, are fixed on described fiber reel fixed support by screw by described metal stationary shaft.
Preferably, in described two fiber reel Central Symmetry position borings, by screw, optical fiber fixed support and two fiber reels are fixed together.
Preferably, described sonet standard transfer device also comprises handle, described shell and fiber reel fixed support are respectively arranged with sheet metal, described handle one end is fixed on the sheet metal of shell by counterbore screw, and the described handle other end is fixed on the support bracket fastened sheet metal of fiber reel by counterbore screw.
Preferably, described fibre-optical splice cover plate realizes the folding of fibre-optical splice cover plate by mechanical draw-in groove.
Preferably, the front panel of described shell is also provided with fiber optic temperature display charactron.
The Advantageous Effects that the utility model brings:
The utility model proposes a kind of fiber lengths loss standard transfer device, by using the optical fibre ring in fiber lengths Transfer Standards as fibre loss Transfer Standards, fiber lengths standard and fibre loss standard are integrated in one, compare with the separate type of fibre loss standard with fiber lengths standard in prior art, this Transfer Standards device decreases the quantity that fiber reel uses, reduce the cost of standard transfer device, alleviate the weight of standard transfer device, conveniently go out to carry, be convenient to visit and carry out metering service; In this external structured design process, by the internal diameter of metal stationary shaft through fiber reel, utilize metal stationary shaft and fiber reel fixed support that two fiber reels are carried out transverse and longitudinal to fix, two holes are made a call to again at fiber reel Central Symmetry place, fiber reel and fiber reel fixed support coupled together guarantee two fiber reels finally by screw can not move axially, avoid and cause fibercuts because of moving axially of fiber reel.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of fiber lengths loss standard of the utility model transfer device.
Wherein, 1-fiber reel fixed part; The support of 2-fixed fiber coupling mechanism and optical patchcord; 3-optical fibre reel; 4-handle; 5-fibre-optical splice cover plate; 6-fixture; 7-shell.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
As shown in Figure 1, a kind of fiber lengths loss standard transfer device, comprises shell 7.The front panel of described shell 7 is provided with fibre-optical splice cover plate 5.The support 2 of fixed fiber coupling mechanism and optical patchcord is installed in described shell 7, the support 2 of described fixed fiber coupling mechanism and optical patchcord is fixed on by counterbore screw on the bottom panel of shell 7, the support 2 of described fixed fiber coupling mechanism and optical patchcord is provided with optical fibre reel 3 and fixture 6.The support 2 of described fixed fiber coupling mechanism and optical patchcord is wound around and fixed fiber wire jumper by optical fibre reel 3, fixes 2 × 2 fiber couplers by fixture 6, avoids the pulling due to optical patchcord or fiber coupler and causes the fracture of optical fiber.Two fiber reels, fiber reel fixed part 1, standard fiber and 2 × 2 fiber couplers are also provided with in described shell 7.Described standard fiber forms by two sections, and wherein one section of optical fiber is for guiding optical fiber, and another section of optical fiber is optical fibre ring, and described guiding optical fiber is connected by 2 × 2 fiber couplers with optical fibre ring.Described fiber reel fixed part 1 comprises metal stationary shaft and fiber reel fixed support, and two fiber reels, through the internal diameter of two fiber reels, are fixed on described fiber reel fixed support by screw by described metal stationary shaft.Because shaft diameter tolerance is very little in the diameter of metal stationary shaft and fiber reel, adds great friction coefficient pad, so just can ensure that, after metal stationary shaft two ends tighten the screw, fiber reel can not move or rotate outward.
In described two fiber reel Central Symmetry position borings, by screw, optical fiber fixed support and two fiber reels are fixed together, can ensure that two fiber reels can not axial-rotation further.
Described sonet standard transfer device also comprises handle 4, described shell 7 and fiber reel fixed support are respectively arranged with sheet metal, described handle 4 one end is fixed on by counterbore screw on the sheet metal of shell 7, described in carry the 4 hand other ends and be fixed on the support bracket fastened sheet metal of fiber reel by counterbore screw.
Described handle 4 is by being separately fixed on described shell 7 and fiber reel fixed support by two sheet metals, and then is separately fixed on two sheet metals by counterbore screw by handle 4.Fiber reel fixed support can be connected with crust of the device 7 by two sheet metals by this structural design on the one hand, increases the support bracket fastened physical strength of fiber reel; It also avoid on the other hand and directly handle 4 is arranged on crust of the device 7 and causes shell 7 to be out of shape.
Described fibre-optical splice cover plate 5 realizes the folding of fibre-optical splice cover plate 5 by mechanical draw-in groove, be used for protecting the bump joint of optical fiber.
The front panel of described shell 7 is also provided with fiber optic temperature display charactron, is mainly used in showing optical fiber temperature value in real time, and then temperature adjustmemt is carried out to fiber lengths.
A kind of fiber lengths loss standard of the utility model transfer device, fiber lengths standard and fibre loss standard are integrated in one, compare with the separate type of fibre loss standard with fiber lengths standard in prior art, this Transfer Standards device decreases the quantity that fiber reel uses, reduce the cost of standard transfer device, alleviate the weight of standard transfer device, conveniently go out to carry, be convenient to visit and carry out metering service; In this external structured design process, by the internal diameter of metal stationary shaft through fiber reel, utilize metal stationary shaft and fiber reel fixed support that two fiber reels are carried out transverse and longitudinal to fix, two holes are made a call to again at fiber reel Central Symmetry place, fiber reel and fiber reel fixed support coupled together guarantee two fiber reels finally by screw can not move axially, avoid and cause fibercuts because of moving axially of fiber reel.
Certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned citing, the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.
Claims (5)
1. a fiber lengths loss standard transfer device, it is characterized in that: comprise shell, the front panel of described shell is provided with fibre-optical splice cover plate, the support of fixed fiber coupling mechanism and optical patchcord is installed in described shell, the support of described fixed fiber coupling mechanism and optical patchcord is fixed on the bottom panel of shell by counterbore screw, the support of described fixed fiber coupling mechanism and optical patchcord is provided with optical fibre reel and fixture, two fiber reels are also provided with in described shell, fiber reel fixed part, standard fiber and 2 × 2 fiber couplers, described standard fiber forms by two sections, wherein one section of optical fiber is for guiding optical fiber, another section of optical fiber is optical fibre ring, described guiding optical fiber is connected by 2 × 2 fiber couplers with optical fibre ring, described fiber reel fixed part comprises metal stationary shaft and fiber reel fixed support, described metal stationary shaft is through the internal diameter of two fiber reels, by screw, two fiber reels are fixed on described fiber reel fixed support.
2. a kind of fiber lengths loss standard transfer device according to claim 1, is characterized in that: in described two fiber reel Central Symmetry position borings, optical fiber fixed support and two fiber reels are fixed together by screw.
3. a kind of fiber lengths loss standard transfer device according to claim 1, it is characterized in that: described fiber lengths loss standard transfer device also comprises handle, described shell and fiber reel fixed support are respectively arranged with sheet metal, described handle one end is fixed on the sheet metal of shell by counterbore screw, and the described handle other end is fixed on the support bracket fastened sheet metal of fiber reel by counterbore screw.
4. a kind of fiber lengths loss standard transfer device according to claim 1, is characterized in that: described fibre-optical splice cover plate realizes the folding of fibre-optical splice cover plate by mechanical draw-in groove.
5. a kind of fiber lengths loss standard transfer device according to claim 1, is characterized in that: the front panel of described shell is also provided with fiber optic temperature display charactron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560377.2U CN204855856U (en) | 2015-07-30 | 2015-07-30 | Optic fibre length loss standard transfer device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520560377.2U CN204855856U (en) | 2015-07-30 | 2015-07-30 | Optic fibre length loss standard transfer device |
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| CN204855856U true CN204855856U (en) | 2015-12-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192346A (en) * | 2017-06-02 | 2017-09-22 | 广州广电计量检测股份有限公司 | The calibrating installation and equipment of fibre strain tester |
| CN107271146A (en) * | 2017-06-02 | 2017-10-20 | 广州广电计量检测股份有限公司 | The calibrating installation and equipment of optical fibre dispersion tester |
| CN109004973A (en) * | 2018-07-04 | 2018-12-14 | 广州广电计量检测股份有限公司 | A kind of OTDR capability evaluating device and method |
-
2015
- 2015-07-30 CN CN201520560377.2U patent/CN204855856U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192346A (en) * | 2017-06-02 | 2017-09-22 | 广州广电计量检测股份有限公司 | The calibrating installation and equipment of fibre strain tester |
| CN107271146A (en) * | 2017-06-02 | 2017-10-20 | 广州广电计量检测股份有限公司 | The calibrating installation and equipment of optical fibre dispersion tester |
| CN107271146B (en) * | 2017-06-02 | 2022-02-01 | 广州广电计量检测股份有限公司 | Calibration device and equipment of optical fiber dispersion tester |
| CN107192346B (en) * | 2017-06-02 | 2022-03-08 | 广州广电计量检测股份有限公司 | Calibration device and equipment of optical fiber strain tester |
| CN109004973A (en) * | 2018-07-04 | 2018-12-14 | 广州广电计量检测股份有限公司 | A kind of OTDR capability evaluating device and method |
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