CN210180643U - High-efficient convenient optic fibre macrobend loss test device - Google Patents
High-efficient convenient optic fibre macrobend loss test device Download PDFInfo
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- CN210180643U CN210180643U CN201921228156.XU CN201921228156U CN210180643U CN 210180643 U CN210180643 U CN 210180643U CN 201921228156 U CN201921228156 U CN 201921228156U CN 210180643 U CN210180643 U CN 210180643U
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Abstract
The utility model discloses a high-efficient convenient optic fibre macrobend loss testing arrangement, including optic fibre macrobend loss detection auxiliary device and optical fiber analyzer, optic fibre macrobend loss detection auxiliary device fixes on optical fiber analyzer. The high-efficiency convenient optical fiber macrobending loss testing device avoids the self-twisting phenomenon generated when optical fibers are wound in a unidirectional mode, eliminates part of testing errors and improves testing precision.
Description
The technical field is as follows:
the utility model relates to an optical fiber detection technique, specifically say that a high-efficient convenient optic fibre macrobend loss testing arrangement.
Background art:
the optical fiber is widely used in the communication field due to its advantages of strong anti-interference performance, low transmission loss, light weight, corrosion resistance, reliable working performance and the like. However, in the process of cabling and use, bending is easily caused to cause the change of the state of an optical fiber waveguide structure, so that a base mode of an optical fiber transmission part is converted into a radiation mode, and additional macrobending loss is generated.
The test method based on the optical fiber macro-bending loss at present generally adopts single-end or double-end fixation, a single winding column is used, an optical fiber is wound on the winding column for a plurality of times in a single direction, and then the optical fiber is fixed by an article for measurement. And some devices for testing the macro-bending performance of optical fibers are separated from measuring equipment at present, so that the efficiency and convenience are insufficient in large-scale production and measurement.
The utility model has the following contents:
the utility model aims to solve the technical problem that a phenomenon of having avoided the proper motion torsion that optic fibre produced when one-way winding is provided, eliminates partial testing error, improves the high-efficient convenient optic fibre macrobend loss testing arrangement of measuring accuracy, and this testing arrangement has avoided the lateral pressure, does not use the fixed winding form of external disturbance piece simultaneously, keeps optic fibre pine to wind naturally, has guaranteed optic fibre test state's stability, has improved detection efficiency.
The technical solution of the utility model is to provide a high-efficient convenient optic fibre macrobend loss testing arrangement, it includes optic fibre macrobend loss detection auxiliary device and optical fiber analyzer, optic fibre macrobend loss detection auxiliary device fixes on optical fiber analyzer; the bottom plate is customized according to the table top of the optical fiber analyzer, the edge of the bottom plate is subjected to radian treatment, the optical fibers are ensured to be jointed and attached between the bottom plate and the table top of the optical fiber analyzer without bending, and the fixing holes are used for fixing the whole device on the table top of the optical fiber analyzer;
the optical fiber macrobend loss detection auxiliary device comprises a bottom plate, an optical fiber winding part and an optical fiber fixing part, wherein the bottom plate is used for providing a fixing and supporting foundation for the optical fiber winding part and the optical fiber fixing part, the optical fiber winding part is used for providing bending operations with different bending diameters for optical fibers to be detected, and the optical fiber fixing part is used for fixing the optical fibers to be detected.
Preferably, the edge of the bottom plate is processed by radian, 3 moving grooves and 2 diagonal fixing holes are arranged on the bottom plate, and the moving grooves are arranged in parallel at intervals along the length direction of the bottom plate.
Preferably, the optical fiber winding part comprises 3 sets of stems with different sizes and 6 moving rods, wherein the stems in the same set comprise two hollow stems with the same size, the stems are matched with the moving rods to be connected with the moving grooves of the bottom plate in a semi-fixed mode and can freely slide in the moving grooves of the bottom plate, and each moving groove is matched with the corresponding set of stems. The stem is connected with the moving groove of the bottom plate in a semi-fixed manner and can freely slide in the moving groove of the bottom plate. Thus, the distance between two stems fixed in the same moving groove can be adjusted. The moving rod is a cylindrical structure, and the outer diameter of the moving rod is consistent with the inner diameter of the core column.
Preferably, the stem has an inner diameter corresponding to an outer diameter of the moving rod, and the moving rod is inserted through the stem from the moving groove of the bottom plate and locked by a nut.
Preferably, the distance between the outer surfaces of the two stems in the same moving groove is 400-500 um.
Preferably, the optical fiber fixing component comprises two positioning rods, a first fixing block, a second fixing block and a fixing bolt, the two positioning rods are located at the center of one end of the bottom plate and are arranged in a gap mode, the second fixing block is fixedly connected with the first fixing block through the fixing bolt, a through hole for the optical fiber to be detected to pass through is formed in the gap, corresponding to the two positioning rods, of the bottom end of the first fixing block, and the center of the gap distance between the two positioning rods is located on the central axis of the through hole.
Preferably, the second fixing block is fastened to the base plate by bolts.
Preferably, the fiber optic analyzer includes a high precision light source.
Preferably, the outer diameter of the stem in the three moving grooves is gradually reduced from one end of the bottom plate provided with the positioning rod toward the other end.
Compared with the prior art after the scheme more than adopting, the utility model has the advantages of it is following:
(1) the utility model discloses when the macrobend loss of test optic fibre, optic fibre twines through "8 words" shape on two stem stems of device, has avoided the phenomenon that twists reverse by oneself that optic fibre produced when one-way winding, has eliminated partial test error, has improved the measuring accuracy.
(2) The utility model discloses when the macrobend loss of test optic fibre, optic fibre twines through "8" font on two stem stems of device. As the gap between the two core columns is 400-500 mu m, the optical fiber can be clamped in the gap, the lateral pressure is avoided, and meanwhile, an external interference piece is not used for fixing the winding form, so that the optical fiber is kept to be naturally loosely wound, and the stability of the optical fiber testing state is ensured.
(3) Convenience: the optical fiber macrobend loss detection auxiliary device is high in combination degree with the test equipment PK2300, does not influence the PK2300 to be used as other detection items, and does not need to be frequently installed and disassembled.
(4) High efficiency: according to the optical fiber macrobending loss detection auxiliary device and the optical fiber macrobending loss detection method, when the optical fiber is sampled, the original sample of the project can be tested by using the Guangxi analyzer without additional sample preparation, and core columns with different sizes on the device can be freely selected for macrobending loss detection.
Description of the drawings:
FIG. 1: optical fiber macrobend loss detection auxiliary device structure schematic diagram
FIG. 2: assembly schematic diagram of optical fiber analyzer and optical fiber macrobend loss detection auxiliary device
FIG. 3: the optical fiber winding state is schematically viewed from above.
The specific implementation mode is as follows:
the present invention will be further described with respect to the following detailed description:
an efficient and convenient optical fiber macrobend loss testing device is shown in fig. 1 and 2, and comprises an optical fiber macrobend loss detection auxiliary device and an optical fiber analyzer 12, wherein a manufacturer of the optical fiber macrobend loss testing auxiliary device is Photon dynamics, model number 2300, and the optical fiber macrobend loss detection auxiliary device is fixed on a working table of the optical fiber analyzer 12;
the optical fiber macrobend loss detection auxiliary device comprises a base plate 1, an optical fiber winding part and an optical fiber fixing part, wherein the base plate 1 is used for providing fixing and supporting bases for the optical fiber winding part and the optical fiber fixing part, the optical fiber winding part is used for providing bending operations with different bending diameters for optical fibers to be detected, and the optical fiber fixing part is used for fixing the optical fibers to be detected.
Preferably, the edge of the bottom plate 1 is processed by radian, 3 moving grooves 2 and 2 diagonal fixing holes 3 are arranged on the bottom plate 1, and the moving grooves 2 are arranged in parallel at intervals along the length direction of the bottom plate. The moving groove 2 is used for connecting the sliding moving rod 5, and the diagonal fixing hole 3 is used for fixing the base plate 1 and the optical fiber analyzer 12. The bottom plate 1 is a stainless steel plate with 190 x 120mm chamfer radius of 2 mm. The size of the moving grooves 2 is 70 x 10mm, the distance between two adjacent moving grooves 2 is equal, and the diagonal fixing holes are phi 6.5mm and are arranged on one side of the bottom plate. The base plate 1 is customized according to the PK2300 optical fiber analyzer table board, the edge of the base plate 1 is subjected to radian processing, so that optical fibers are jointed and attached between the base plate 1 and the PK2300 optical fiber analyzer table board 12 without bending, and the fixing holes 3 are used for fixing the whole device on the PK2300 optical fiber analyzer working table board;
preferably, the optical fiber winding part comprises 3 sets of stems 4 and 6 moving rods 5 with different sizes, wherein the stem 4 of the same set comprises two hollow stems with the same size, the stem 4 is matched with the moving rod 5 to be connected with the moving groove of the bottom plate in a semi-fixed mode and can freely slide in the moving groove 3 of the bottom plate, and each moving groove 2 is matched with the corresponding set of stems 4. Thus, the distance between two stems fixed in the same moving groove can be adjusted. The moving rod 5 is a cylindrical structure with an outer diameter corresponding to the inner diameter of the stem. Wear out 2 movable rod 5 from bottom to top from the moving chute 2 below, every moving chute 2 is equipped with 2 movable rod 5, overlaps two stem 4 respectively on two movable rod 5, fixes and makes movable rod 5 can freely slide in moving chute 2 with nut 6 to adjust stem 4 clearance apart from the center and fixed part center on same central line. In this embodiment, the moving slot is a convex through slot, the moving slot diameter (Φ is 6.0mm) at the top of the bottom plate is smaller than the moving slot diameter (Φ is 10mm) at the bottom of the bottom plate, correspondingly, the moving rod is designed like a bolt, that is, the moving rod comprises a head (Φ is not less than 5mm and not more than 10mm) at the bottom and a rod (Φ is 5.5mm) above the head, the rod is a cylinder with a length of 65mm, and the 15mm cylinder at the upper end is provided with a thread (M5), when the moving rod is used, the rod body faces upwards, the head faces downwards and penetrates out the moving rod from the bottom of the moving slot (bottom of the bottom plate), and the head of the moving rod is limited by the upper portion of the moving slot, so that the whole. The core column 4 is a hollow cylinder with an inner diameter phi of 5.5mm and an outer diameter phi of different sizes (32 mm, 30mm, 20mm, 15mm and 10mm can be selected).
For convenient positioning, the inner diameter of the core column 4 is consistent with the outer diameter of the moving rod 5, and the moving rod 5 penetrates through the core column from the moving groove of the bottom plate upwards and is locked at the thread on the upper part of the moving rod by a nut. For better effect, the outer diameter of the core column in the three moving grooves is gradually reduced towards the other end direction from one end of the bottom plate provided with the positioning rod.
Preferably, the distance between the outer surfaces of the two stems in the same moving groove 2 is 400-500 um.
Preferably, the optical fiber fixing component comprises two positioning rods 7, a first fixing block 8, a second fixing block 9 and a fixing bolt 10, wherein the two positioning rods 7 are located at the center of one end of the bottom plate and are arranged in a clearance mode, the second fixing block 9 is fixedly connected with the first fixing block 8 through the fixing bolt 10, a through hole for the optical fiber to be detected to pass through is formed in the gap, corresponding to the two positioning rods, of the bottom end of the first fixing block 8, and the center of the gap distance between the two positioning rods is located on the central axis of the through hole. The second fixing block 9 is fastened to the bottom plate by bolts.
In addition, the fiber analyzer 12 includes a high-precision light source.
The method for measuring by adopting the optical fiber macrobend loss detection auxiliary device is implemented as follows:
firstly: the core columns 4 with different sizes are fixed by the movable rod 5 and the bottom plate 1 according to different optical fiber test requirements, if a plurality of core columns 4 are needed, the centers between the two core columns 4 and the centers between the two positioning rods 7 are ensured to be on the same central line, and the distance between the two core columns is controlled to be 400 microns and 500 microns.
Secondly, the method comprises the following steps: the assembled optical fiber macrobend loss detection auxiliary device is fixed on an optical fiber analyzer 12 through a diagonal fixing hole 3, so that the center between a positioning rod 7 and a core column 4 is on the same central line with an optical port 11 of the optical fiber analyzer 12.
Then: fixing two ends of a short optical fiber sample by using an optical fiber clamp, respectively placing the sample on two optical ports 11 of an optical fiber analyzer after end face treatment,
then: the optical fiber is wound by the winding "8" method, as shown in fig. 3. Optical fiber passes from locating lever 7 to and 8 apertures of first fixed block, and the clockwise circle pine winds 4 circles of stem on the left behind two stem centers, passes stem 4 centers, and the counterclockwise circle pine winds the stem circle on the right again, passes again behind the stem center with optical fiber attachment to optical fiber analyzer 12 fixed, and whole process need guarantee that optical fiber does not have unnecessary state of buckling. And loosening the optical fiber on the core columns with different diameters for different numbers of turns according to different test requirements.
And finally: a PK2300 optical fiber analyzer is used for measuring a power spectrum of an optical fiber obtained in a bending state, then the bent optical fiber is loosened and restored to an original state along a central line, and the power spectrum in an unbent state is measured, so that macrobending loss values of the optical fiber under different wavelengths are obtained.
The utility model has the advantages of it is following:
(1) the utility model discloses when the macrobend loss of test optic fibre, optic fibre twines through "8 words" shape on two stem stems of device, has avoided the phenomenon that twists reverse by oneself that optic fibre produced when one-way winding, has eliminated partial test error, has improved the measuring accuracy.
(2) The utility model discloses when the macrobend loss of test optic fibre, optic fibre twines through "8" font on two stem stems of device. As the gap between the two core columns is 400-500 mu m, the optical fiber can be clamped in the gap, the lateral pressure is avoided, and meanwhile, an external interference piece is not used for fixing the winding form, so that the optical fiber is kept to be naturally loosely wound, and the stability of the optical fiber testing state is ensured.
(3) Convenience: the optical fiber macrobend loss detection auxiliary device is high in combination degree with the test equipment PK2300, does not influence the PK2300 to be used as other detection items, and does not need to be frequently installed and disassembled.
(4) High efficiency: according to the optical fiber macrobending loss detection auxiliary device and the optical fiber macrobending loss detection method, when an optical fiber is sampled, the PK2300 optical fiber analyzer can be used for testing the original sample of the project, additional sample preparation is not needed, and core columns with different sizes on the device can be freely selected for macrobending loss detection.
The foregoing is illustrative of the preferred embodiments of the present invention only, and is not to be construed as limiting the claims. All utilize the utility model discloses equivalent structure or equivalent flow transform that the specification was done all are included within the patent protection scope of the utility model.
Claims (9)
1. The utility model provides a high-efficient convenient optic fibre macrobend loss test device which characterized in that: the device comprises an optical fiber macrobend loss detection auxiliary device and an optical fiber analyzer, wherein the optical fiber macrobend loss detection auxiliary device is fixed on the optical fiber analyzer;
the optical fiber macrobend loss detection auxiliary device comprises a bottom plate, an optical fiber winding part and an optical fiber fixing part, wherein the bottom plate is used for providing a fixing and supporting foundation for the optical fiber winding part and the optical fiber fixing part, the optical fiber winding part is used for providing bending operations with different bending diameters for optical fibers to be detected, and the optical fiber fixing part is used for fixing the optical fibers to be detected.
2. The efficient convenient optical fiber macrobend loss testing device of claim 1, wherein: the edge of the bottom plate is processed by radian, 3 moving grooves and 2 diagonal fixing holes are arranged on the bottom plate, and the moving grooves are arranged in parallel at intervals along the length direction of the bottom plate.
3. The efficient convenient optical fiber macrobend loss testing device of claim 1, wherein: the optical fiber winding component comprises 3 groups of hollow stems with different sizes and 6 moving rods, wherein the stems in the same group comprise two stems with the same size, the stems are matched with the moving rods to be connected with the moving grooves of the bottom plate in a semi-fixed mode and can freely slide in the moving grooves of the bottom plate, and each moving groove is matched with one group of stems.
4. The efficient convenient optical fiber macrobend loss testing device of claim 3, wherein: the inner diameter of the stem is consistent with the outer diameter of the moving rod, and the moving rod penetrates through the stem from the moving groove of the bottom plate upwards and is locked by a nut.
5. The efficient convenient optical fiber macrobend loss testing device of claim 3, wherein: the distance between the outer surfaces of the two stems in the same moving groove is 400-500 mu m.
6. The efficient convenient optical fiber macrobend loss testing device of claim 1, wherein: the optical fiber fixing component comprises two positioning rods, a first fixing block, a second fixing block and a fixing bolt, wherein the two positioning rods are located at the center of one end of the bottom plate and are arranged in a clearance mode, the second fixing block is fixedly connected with the first fixing block through the fixing bolt, a through hole through which an optical fiber to be detected can pass is formed in the clearance, corresponding to the two positioning rods, of the bottom end of the first fixing block, and the center of the clearance distance between the two positioning rods is located on the central axis of the through hole.
7. The efficient convenient optical fiber macrobend loss testing device of claim 6, wherein: the second fixed block is fastened on the bottom plate through bolts.
8. The efficient convenient optical fiber macrobend loss testing device of claim 1, wherein: the fiber optic analyzer includes a high precision light source.
9. The efficient convenient optical fiber macrobend loss testing device of claim 1, wherein: the outer diameter of the core column in the three moving grooves is gradually reduced towards the other end direction from one end of the bottom plate provided with the positioning rod.
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| CN201921228156.XU CN210180643U (en) | 2019-07-31 | 2019-07-31 | High-efficient convenient optic fibre macrobend loss test device |
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| CN201921228156.XU CN210180643U (en) | 2019-07-31 | 2019-07-31 | High-efficient convenient optic fibre macrobend loss test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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