CN207937145U - A kind of optical fiber macrobending loss test fixture - Google Patents
A kind of optical fiber macrobending loss test fixture Download PDFInfo
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- CN207937145U CN207937145U CN201820152170.5U CN201820152170U CN207937145U CN 207937145 U CN207937145 U CN 207937145U CN 201820152170 U CN201820152170 U CN 201820152170U CN 207937145 U CN207937145 U CN 207937145U
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Abstract
The utility model discloses a kind of optical fiber macrobending loss test fixtures, belong to test optical fiber field.The optical fiber macrobending loss test fixture, including multiple test suites, each of the multiple test suite has different diameters including transmission mechanism, multiple optical fiber of the optical fiber in column, the multiple test suite around column, and the transmission mechanism is for driving the optical fiber to be moved around column.The utility model realizes the macrobending loss test that differently curved radius is persistently carried out to optical fiber, and simple in structure, easy to operate, efficient, can be widely applied to test optical fiber field.
Description
Technical field
The utility model is related to test optical fiber field, more particularly to a kind of optical fiber macrobending loss test fixture.
Background technology
The bending of optical fiber can cause the decaying of optical fiber to increase, and influence the transmission performance of optical fiber.G.657 optical fiber is a kind of bending
Insensitive optical fiber is lost, due to its excellent bending resistance, is largely applied in FTTH.With FTTH's in recent years plus
Speed development, market also constantly increase the demand of G.657 optical fiber, therefore, for optical fiber manufacturer, promote G.657 light
Fine yield accurately tests rapidly its macrobending loss, just particularly important.
According to ITU-T relevant criterions, G.657 optical fiber need to ensure the feelings in the differently curved radius such as 15mm, 10mm, 7.5mm
Therefore additional attenuation under condition before optical fiber manufacture, need to carry out the test of the additional attenuation under differently curved radius, i.e. macrobend
The test of loss.
When due to test optical fiber macrobending loss, the both ends of optical fiber need to couple fixation, mesh with the Transmitting and Receiving End of light power meter respectively
The various information about optical fiber macrobending loss test fixture in preceding disclosed patent document, it is curved to cannot achieve follow-on test difference
The macrobending loss of bilge radius.It, can be single-ended in optical fiber such as patent CN20424118U (a kind of macrobending loss test fixture of optical fiber)
It carries out in the case of fixed around fibre, after testing a kind of macrobending loss of bending radius, optical fiber both-end is fixed, then can not be continued
Optical fiber is removed in this case and is wound on the cylinder of another bending radius；For another example patent application CN106956960A
(for the test of optical fiber macrobending loss around fine device), wherein the fiber turns cylinder for winding optical fiber only exists an Artenkreis diameter,
It tests during optical fiber macrobending loss, fiber turns cylinder need to be frequently replaced, to test the macrobending loss of differently curved radius.
Utility model content
In order to solve problems in the prior art, the utility model embodiment provides a kind of optical fiber macrobending loss test work
Dress.The technical solution is as follows：
Provide a kind of optical fiber macrobending loss test fixture, including multiple test suites, the multiple test suite it is every
It is a that there is different diameters, the biography around column including transmission mechanism, multiple optical fiber of the optical fiber in column, the multiple test suite
Motivation structure is for driving the optical fiber to be moved around column.
Preferably, each of the multiple test suite further includes limiting device, and the limiting device is described for limiting
Optical fiber is around the position of column.
Preferably, the transmission mechanism includes driving wheel, the rotational handle being connect with the driving wheel, driven wheel, transmission
Band and set on the conveyer belt annular surround intracavitary, with conveyer belt baffle arranged in parallel, the conveyer belt with it is described
Dispose the optical fiber around column around column pedestal between baffle, it is described to be engaged with the conveyer belt around the outer surface of column pedestal, it is described
It is located at the optical fiber around the bottom of column around column pedestal；The limiting device is limited block, and the limited block is located remotely from the light
Fibre is around one end of column.
Preferably, multiple conveyer belts of the multiple test suite are arranged in parallel.
Preferably, the optical fiber is equipped with multi-segment thread around column.
Preferably, the optical fiber around column top be equipped with clamping device, the optical fiber wound on column for fixing the optical fiber,
The clamping device includes gripping block.
Preferably, the test fixture further includes babinet, and the babinet has a pedestal, is offered in the tank surface
Multiple U-type grooves, for disposing the multiple optical fiber around column.
The advantageous effect brought of technical solution that the utility model embodiment provides is：
The optical fiber macrobending loss test fixture that the utility model embodiment provides need not incite somebody to action in entire test process
Optical fiber is removed from light power meter coupled end, need not also be replaced the optical fiber of tooling around column, be realized optical fiber different radii macrobend damage
The follow-on test of consumption, and winding displacement is smooth, and nothing laminates.And provided with limiting device, need not it is artificial a few,
The rate for improving winding optical fiber can also avoid a few artificial mistakes and cause test data inaccuracy problem.Therefore, with it is existing
Test fixture is compared, the utility model embodiment provide optical fiber macrobending loss test fixture not only realize to optical fiber continue into
The macrobending loss of the differently curved radius of row optical fiber is tested, and simple in structure, and easy to operate, integrated testability efficiency is carried
It is high.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of optical fiber macrobending loss test fixture structural schematic diagram that the utility model embodiment provides；
Fig. 2 is the cross-sectional view that Fig. 1 is obtained along line A-A cutting.
Reference sign：
The first driving wheels of 11-, the first driven wheels of 12-, the first conveyer belts of 13-, 15- first baffles, 17- first is around column bottom
Seat；
The second driving wheels of 21-, the second driven wheels of 22-, the second conveyer belts of 23-, the second optical fiber of 24- is around column, 25- second gear
Plate, the second rotational handles of 26-；
31- third driving wheels, 32- third driven wheels, 33- third conveyer belts, 34- thirds optical fiber is around column, 35- third gear
Plate, 36- third rotational handles, 37- thirds are around column pedestal, 38- third limited blocks, 39- third gripping blocks, 40- third U-type grooves；
4- babinets, 41- pedestals.
Specific implementation mode
To keep the purpose of this utility model, technical solution and advantage clearer, implement below in conjunction with the utility model
Attached drawing in example, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described reality
It is only the utility model a part of the embodiment to apply example, 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 reality
With novel protected range.
It should be noted that the utility model description as described on directions such as " left and right " is all based on orientation shown in the drawings
Or the contextual definition of position, it is merely for convenience of describing the present invention and simplifying the description, rather than described in indicating or implying
Device must be with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.Term " first ",
" second " is used for description purposes only, and is not understood to indicate or imply relative importance or implicitly indicates indicated technology
The quantity of feature.Define " first " as a result, the feature of " second " can explicitly or implicitly include it is one or more
This feature.The meaning of " plurality " is two or more in the description of the present invention, unless otherwise specifically defined.
The optical fiber macrobending loss test fixture that the utility model embodiment provides, including multiple test suites, multiple tests
Each of component has different diameters including transmission mechanism, multiple optical fiber of the optical fiber in column, multiple test suites around column,
Transmission mechanism is for driving optical fiber to be moved around column.Since the optical fiber macrobending loss test fixture is provided with multiple test suites, and
And the optical fiber in each test suite has different diameters around column, and the macrobend of differently curved radius can be accordingly carried out to optical fiber
Loss test, in addition add transmission mechanism effect, when being tested optical fiber using the test fixture, the both ends of optical fiber with
Light power meter connects, and the rest part of optical fiber is wrapped in optical fiber on column, when a kind of bending radius is after being completed, Ke Yi
The wound section of optical fiber is unloaded under the drive of transmission mechanism, is then placed in the optical fiber of another bending radius by transmission mechanism again
It is tested around column, realizes the macrobending loss test for persistently carrying out differently curved radius to optical fiber, and simple in structure, operation
It is convenient, it is efficient, it can be widely applied to test optical fiber field.
Below in conjunction with specific embodiment and its attached drawing, the optical fiber macrobending loss that the utility model embodiment provides is tested
Tooling is described further.
Fig. 1 is a kind of optical fiber macrobending loss test fixture structural schematic diagram that the utility model embodiment provides.Fig. 2 is figure
1 cross-sectional view obtained along line A-A cutting.
As shown in Figure 1, the optical fiber macrobending loss test fixture that the utility model embodiment provides includes three test suites,
Each test suite of three test suites include three optical fiber of transmission mechanism and optical fiber in column, three test suites around
Column has different diameters, and transmission mechanism is for driving optical fiber to be moved around column.
Specifically, as shown in Figure 1, the first test suite (is not shown including the first transmission mechanism and the first optical fiber around column in figure
Show), the first transmission mechanism includes that the first driving wheel 11, the first rotational handle being connect with the first driving wheel 11 (are not shown in figure
Show), the first driven wheel 12, the first conveyer belt 13 and set on the annular of the first conveyer belt 13 surround intracavitary, with the first conveyer belt 13
First baffle 15 arranged in parallel disposes the first optical fiber around column first around column between the first conveyer belt 13 and first baffle 15
Pedestal 17, first engages around the outer surface of column pedestal 17 with the first conveyer belt 13, first around column pedestal 17 be located at the first optical fiber around
The bottom of column rotates the first driving wheel 11 by the first rotational handle, makes first around column bottom under the drive of the first transmission mechanism
Seat 17 rotates, to drive the first optical fiber to be moved in the lateral direction around column.First optical fiber is additionally provided with more on column
Section screw thread, to ensure that optical fiber winding displacement in winding is additionally provided with the first clamping device without laminating in the top position of neighbouring screw thread
(not shown), the optical fiber wound on column for fixing the first optical fiber, the first clamping device may be used clamping it is fast or its
He can realize the structure of the clamping function.In addition, the first test suite further includes the first limiting device (not shown), position
It, around one end of column, is used to limit the first optical fiber around the position of column, by testing and calculating installation first in far from the first optical fiber
The installation site of limiting device ensures that optical fiber is around the target number of turns after optical fiber is around column the first limiting device position of arrival, first
Limited block or other, which may be used, in limiting device can realize the structure of the limit function.
As shown in Figure 1, the second test suite includes the second transmission mechanism and the second optical fiber around column 24, the second transmission mechanism packet
Include the second driving wheel 21, the second rotational handle 26 being connect with the second driving wheel 21, the second driven wheel 22, the second conveyer belt 23 with
And intracavitary and the second conveyer belt 23 second baffle 25 arranged in parallel are surrounded set on 23 annular of the second conveyer belt, in the second transmission
With disposing the second optical fiber around column 24 second around column pedestal (not shown) between 23 and second baffle 25, second around column pedestal
Outer surface engaged with the second conveyer belt 23, second is located at the second optical fiber around the bottom of column 24, in the second driver around column pedestal
Under the drive of structure, the second driving wheel 21 is rotated by the second rotational handle 26, makes second to rotate around column pedestal, to drive
Second optical fiber is moved in the lateral direction around column 24.Second optical fiber is additionally provided with multi-segment thread on column, to ensure optical fiber
In winding, winding displacement is additionally provided with the second clamping device (not shown), the second folder without laminating in the top position of neighbouring screw thread
Gripping block or other, which may be used, in tight device can realize the structure of the clamping function.It is twined on column 24 for fixing the second optical fiber
Around optical fiber.In addition, the second test suite further includes the second limiting device (not shown), the second optical fiber is located remotely from around column
24 one end, for limiting the second optical fiber around the position of column, by the installation position for testing and calculating the second limiting device of installation
It sets, ensures that around the target number of turns, the second limiting device may be used optical fiber after optical fiber reaches the second limiting device position around column
Limited block or other can realize the structure of the limit function.
As shown in Figures 1 and 2, third test suite includes third transmission mechanism and third optical fiber around column 34, third transmission
Mechanism includes third driving wheel 31, is connect with third driving wheel 31 third rotational handle 36, third driven wheel 32, third transmission
With 33 and set on the annular of third conveyer belt 33 surround intracavitary, with the third baffle 35 arranged in parallel of third conveyer belt 33, the
Dispose third optical fiber around the third of column 34 around column pedestal 37 between three conveyer belts 33 and third baffle 35, third is around column pedestal 37
Outer surface is engaged with third conveyer belt 33, and third is located at third optical fiber around the bottom of column 34, in third driver around column pedestal 37
Under the drive of structure, third driving wheel 31 is rotated by third rotational handle 36, third is made to be rotated around column pedestal 37, to drive the
Three optical fiber are moved in the lateral direction around column 34.Third optical fiber is additionally provided with multi-segment thread on column 37, to ensure optical fiber
In winding, winding displacement is additionally provided with third gripping block 39 without laminating in the top position of neighbouring screw thread, for fix third optical fiber around
The optical fiber wound on column 34, third gripping block 39 can also use other in addition to gripping block that can realize the clamping function
Structure.In addition, third test suite further includes third limited block 38, third optical fiber is located remotely from around one end of column 34, for limiting
Third optical fiber is determined around the position of column 34, and by testing and calculating the installation site of installation third limited block 38, optical fiber is worked as in guarantee
After column reaches 38 position of third limited block, optical fiber around the target number of turns, third limited block 38 can also use except limited block it
Outer other can realize the structure of the limit function.
In addition, the test fixture that the utility model embodiment provides further includes babinet 4, babinet 4 has a pedestal 41, in case
4 surface of body is opened up there are three U-type groove, and each U-type groove is respectively used to each optical fiber in three test suites of installation around column, U-shaped
Slot is around the moving track of column optical fiber to be moved left and right around column in the U-type groove as optical fiber.As shown in Figure 1, the 3rd U
Type groove 40 is placed in around column pedestal 37 in third U-type groove 40, phase for installing third optical fiber around column 34 in particular by by third
It answers, it can be in third under the drive of column pedestal 37, in the 3rd U around column 34 around the third optical fiber that column pedestal 37 is connect with third
It horizontally slips in type groove 40.In addition, three conveyer belts of three test suites are in arranged in parallel in babinet 4.Such structure
Convenient for the positional distance data of three limiting devices of measuring and calculating, and it is convenient for test operation.
It should be noted that in the case where not departing from the utility model embodiment theme tone and utility model is conceived,
Each each component part could be provided as same or analogous structure in three test suites in test fixture, can also set
It is set to different structures.
The operation principle and operation implementation process for the optical fiber macrobending loss test fixture that the utility model embodiment provides
It is as follows：
The testing fiber for taking one section of suitable length, after testing fiber both ends are connected light power meter, remaining fiber section is flat
Near paving to the first U-type groove of the first test suite, optical fiber doubling tail portion is fixed on the first optical fiber using the first clamping device
In the screw thread of column top, while ensureing that optical fiber connector doubled over portion bending radius is not less than 30mm, avoids influencing test accuracy；
Afterwards utilize the first rotational handle rotate the first driving wheel 11, drive first around column pedestal 17 rotate, to drive the first optical fiber around
Column is subjected to displacement, and by remaining optical fiber around to the first optical fiber in the screw thread of column, ensures that winding displacement is smooth；When the first optical fiber is reached around column
After first limiting device, optical fiber around the target number of turns, then test optical fiber in the case that this bending radius macrobending loss.Test
After the completion, the first rotational handle, optical fiber of the first optical fiber of release on column, later in the second test suite or third are reversely rotated
Test suite repetitive operation carries out the macrobending loss test of other bending radius.
By above description and practice it is found that since the optical fiber macrobending loss provided using the utility model embodiment is tested
Optical fiber need not be removed from light power meter coupled end in entire test process, need not also replace the optical fiber of tooling by tooling
Around column, the follow-on test of optical fiber different radii macrobending loss is realized, and winding displacement is smooth, nothing laminates.And provided with limit
In the case of the device of position, need not it is artificial a few, improve the rate of winding optical fiber, a few artificial mistakes can also be avoided and caused
Test data inaccuracy problem.Therefore, compared with existing test fixture, the optical fiber macrobending loss of the utility model embodiment offer
Test fixture not only realizes the macrobending loss test that the differently curved radius of optical fiber is persistently carried out to optical fiber, and simple in structure,
Easy to operate, integrated testability efficiency is improved.
Test method using optical fiber macrobending loss test fixture in said program includes the following steps：
The both ends of multiple testing fibers are connected into light power meter, then the rest part of optical fiber are tiled, by pair of optical fiber
Swing-tail assembly is not placed in the optical fiber of each test suite on column；
Start the transmission mechanism of each test suite, optical fiber is driven to be moved around column, until optical fiber reaches precalculated position around column,
Optical fiber is limited around the position of column using the limiting device of each test suite；
It is tested, is completed the transmission mechanism of each test suite of reverse operating, by each optical fiber from optical fiber around column
On remove.
In a certain preferred embodiment, above-mentioned test method includes the following steps：
The both ends of testing fiber are connected into light power meter, then the rest part of optical fiber are tiled, by the doubling tail of optical fiber
Portion is placed in one optical fiber in multiple test suites on column；
Start the transmission mechanism of the test suite, optical fiber is driven to be moved around column, until optical fiber reaches precalculated position, profit around column
Optical fiber is limited around the position of column with the limiting device of the test suite；
It is tested, is completed reverse operating transmission mechanism, optical fiber doubling tail portion is removed from optical fiber on column；
The optical fiber that optical fiber doubling tail portion is placed in another test suite repeats above-mentioned test operation on column.
In a certain preferred embodiment, above-mentioned test method includes the following steps：
The both ends of testing fiber are connected into light power meter, then the rest part of optical fiber is laid near babinet U-type groove,
The one optical fiber doubling tail portion of optical fiber being placed in multiple test suites is fixed optical fiber on column, and using gripping block
In screw thread of the optical fiber around column；
The driving wheel of transmission mechanism in the test suite is rotated using rotational handle, optical fiber is driven to be moved around column, until light
Fibre reaches precalculated position around column, and optical fiber is limited around the position of column using the limited block of the test suite；
It is tested, is completed reverse operating transmission mechanism, optical fiber doubling tail portion is removed from optical fiber on column；
The optical fiber that optical fiber doubling tail portion is placed in another test suite repeats above-mentioned test operation on column.
Above-mentioned all optional technical solutions, may be used the alternative embodiment that any combination forms the utility model, herein
No longer repeat one by one.
In conclusion the optical fiber macrobending loss test fixture that the utility model embodiment provides, realizes optical fiber different half
The follow-on test of diameter macrobending loss, and winding displacement is smooth, and nothing laminates.And provided with limiting device, do not need
Manually a few, improve the rate of winding optical fiber, can also avoid a few artificial mistakes and cause test data inaccuracy problem.Cause
This, compared with existing test fixture, the optical fiber macrobending loss test fixture that the utility model embodiment provides not only realizes pair
Optical fiber persistently carries out the macrobending loss test of the differently curved radius of optical fiber, and simple in structure, easy to operate, integrated testability efficiency
It is improved.
It should be noted that：The test method optical fiber macrobend damage for the optical fiber macrobending loss test fixture that above-described embodiment provides
Consumption test fixture embodiment belongs to same design, and specific implementation process refers to apparatus embodiments, and which is not described herein again.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (7)
1. a kind of optical fiber macrobending loss test fixture, which is characterized in that including multiple test suites, the multiple test suite
Each there is different diameters around column including transmission mechanism, multiple optical fiber of the optical fiber in column, the multiple test suite, it is described
Transmission mechanism is for driving the optical fiber to be moved around column.
2. test fixture according to claim 1, which is characterized in that each of the multiple test suite further includes limit
Device, the limiting device is for limiting the optical fiber around the position of column.
3. test fixture according to claim 2, which is characterized in that the transmission mechanism includes driving wheel and the master
The rotational handle of driving wheel connection, driven wheel, conveyer belt and surround intracavitary, flat with the conveyer belt set on the conveyer belt annular
The baffle of row arrangement, disposes the optical fiber around column around column pedestal between the conveyer belt and the baffle, described around column pedestal
Outer surface engaged with the conveyer belt, it is described to be located at the optical fiber around the bottom of column around column pedestal；The limiting device is limited
Position block, the limited block are located remotely from the optical fiber around one end of column.
4. test fixture according to claim 1, which is characterized in that multiple conveyer belts of the multiple test suite are parallel
Arrangement.
5. test fixture according to any one of claims 1 to 4, which is characterized in that the optical fiber is equipped with multistage around column
Screw thread.
6. test fixture according to claim 5, which is characterized in that the optical fiber is equipped with clamping device around column top, uses
In the optical fiber that the fixation optical fiber is wound on column, the clamping device includes gripping block.
7. according to claim 1,2,3,4 or 6 any one of them test fixtures, which is characterized in that the test fixture also wraps
Babinet is included, the babinet has a pedestal, multiple U-type grooves offered in the tank surface, for disposing the multiple optical fiber
Around column.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820152170.5U CN207937145U (en) | 2018-01-29 | 2018-01-29 | A kind of optical fiber macrobending loss test fixture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820152170.5U CN207937145U (en) | 2018-01-29 | 2018-01-29 | A kind of optical fiber macrobending loss test fixture |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095259A (en) * | 2018-01-29 | 2019-08-06 | 中天科技光纤有限公司 | A kind of optical fiber macrobending loss test fixture and its test method |
| CN110426184A (en) * | 2019-07-31 | 2019-11-08 | 杭州永特信息技术有限公司 | A kind of efficiently convenient optical fiber macrobending loss test device and test method |
-
2018
- 2018-01-29 CN CN201820152170.5U patent/CN207937145U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095259A (en) * | 2018-01-29 | 2019-08-06 | 中天科技光纤有限公司 | A kind of optical fiber macrobending loss test fixture and its test method |
| CN110426184A (en) * | 2019-07-31 | 2019-11-08 | 杭州永特信息技术有限公司 | A kind of efficiently convenient optical fiber macrobending loss test device and test method |
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