CN111811779A - Split type tail optical fiber connection performance testing device - Google Patents
Split type tail optical fiber connection performance testing device Download PDFInfo
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- CN111811779A CN111811779A CN202010506380.1A CN202010506380A CN111811779A CN 111811779 A CN111811779 A CN 111811779A CN 202010506380 A CN202010506380 A CN 202010506380A CN 111811779 A CN111811779 A CN 111811779A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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Abstract
The invention discloses a split type pigtail connection performance testing device, and aims to provide a split type pigtail connection performance testing device which can directly detect whether optical fiber connection meets requirements or not at the same station under the conditions that optical fibers and flanges are well connected and the connection state of the optical fibers is not changed. It comprises two detection boxes. The detection box comprises a detection box body; a gland; the optical fiber identification device comprises a mounting opening arranged on the upper surface of the detection box body and a floating support flat plate positioned in the mounting opening; the connection performance detection device comprises an elastic shading pressing block arranged on the lower surface of the gland, a detection groove arranged on the lower surface of the elastic shading pressing block, and a laser module arranged in the detection groove. The laser module in one of the two detection boxes is a laser emitting module, and the laser module in the other detection box is a laser receiving module.
Description
Technical Field
The invention relates to the technical field of optical fiber communication, in particular to a split type tail fiber connection performance testing device.
Background
In the optical fiber communication network, a plurality of optical distribution units and fiber jumping devices are arranged, a plurality of stations are needed to use tail fibers to jump a fiber core on one optical cable line to another line in the process of optical path networking and detouring, and the optical fiber jumping operation is frequently carried out in the optical fiber operation and maintenance operation. Most of the existing optical distribution frames use standard FC flanges or SC flanges to carry out optical path connection with tail fibers, the tail fibers are in jumper connection with another line from a fiber core on one optical cable line, when the fiber jumping operation is affected by improper operation, component quality and aging, the condition that the fiber core of an individual station is in jumper connection loss or even cannot be used can occur, along with the increasing capacity of optical fiber distribution equipment, the problem is more and more, and the smooth expansion of the optical fiber operation and maintenance work is not facilitated; therefore, after the optical fiber jumping operation is completed, whether the optical fiber connection performance is qualified needs to be detected.
At present, after the optical fiber jumping operation is completed, a light source optical power meter and an OTDR test are generally adopted, and the test is carried out in a plug-in coupling mode, so that during the test, only one end tail fiber and a flange can be tested to be connected reliably, then the flange connection of the end tail fiber is disassembled, and then the other end tail fiber and the flange connection are tested to be connected reliably, so that only one end tail fiber and the flange connection can be ensured to be connected reliably, the optical fiber operation field is a closed-loop operation, after the tail fibers are connected at two ends of the jumping fiber, whether the connecting flanges at two ends of the jumping fiber meet the requirements can only be tested by using the light source optical power meter and the OTDR test at the opposite end of an optical cable line of a next station, so that the optical paths in two directions are good by using the OTDR test when the jumping fiber is carried out at one station, but when the jumping operation is carried out at the next station, the OTDR test finds that the connecting loss of the last station is large at one end tail fiber, the optical power meter and, even new pigtails and flanges have the problem that the workload of operators is greatly increased, and the working efficiency of optical fiber jumping operation is affected.
Disclosure of Invention
The invention aims to provide a split type pigtail connection performance testing device which can realize that whether optical fiber connection meets requirements or not at the same station under the conditions that optical fibers and flanges are well connected and the connection state of the optical fibers is not changed, thereby reducing the workload of operators and improving the working efficiency.
The technical scheme of the invention is as follows:
the utility model provides a split type tail optical fiber connection capability test device, characterized by includes two detection boxes, the detection box includes: the detection box body is of a hollow structure, and a box inner cavity is arranged in the detection box body; the gland is connected with the detection box body through a buckle; the optical fiber identification device comprises a mounting opening arranged on the upper surface of the detection box body, a floating support flat plate positioned in the mounting opening, a support spring used for supporting the floating support flat plate and a trigger switch positioned below the floating support flat plate, wherein the mounting opening is communicated with the inner cavity of the box body; the connection performance detection device comprises an elastic shading pressing block arranged on the lower surface of the gland, a detection groove arranged on the lower surface of the elastic shading pressing block, and a laser module arranged in the detection groove; after the gland is connected with the detection box body through a buckle, the lower surface of the elastic shading pressing block is tightly pressed on the surface of the floating support flat plate, and the floating support flat plate covers the notch of the corresponding detection groove; the laser module in one of the two detection boxes is a laser emitting module, and the laser module in the other detection box is a laser receiving module.
After the flanges at the two ends of the jump fiber are connected with the tail fiber, the connection performance of the flange at one end of the jump fiber and the tail fiber is detected through a split type tail fiber connection performance testing device, and then the connection performance of the flange at the other end of the jump fiber and the tail fiber is detected by adopting the same operation; the specific operation of detecting the connection performance of the flange at the end part of the jump fiber and the tail fiber is as follows:
firstly, opening a gland of a detection box; then, placing the jumping fiber close to the flange at the end part of the jumping fiber on a floating support flat plate of the detection box; then, covering a gland to ensure that the gland is connected with the detection box body through a buckle;
opening the cover of the other cartridge; then, the tail fiber is placed on a floating support flat plate of the detection box; then, covering a gland to ensure that the gland is connected with the detection box body through a buckle;
after a gland of the detection box is connected with the detection box body in a buckling manner, the lower surface of an elastic shading pressing block is tightly pressed on the surface of the floating support flat plate, the jumping fiber is pressed on the surface of the corresponding floating support flat plate by the elastic shading pressing block of one detection box, and the notch of a detection groove on the elastic shading pressing block is opposite to the jumping fiber; the tail fiber is pressed on the surface of the corresponding floating support flat plate by the elastic shading pressing block of the other detection box, and the notch of the detection groove on the elastic shading pressing block is over against the tail fiber; because the elastic shading pressing block has elasticity, after the elastic shading pressing block presses the jumping fiber or the tail fiber on the surface of the corresponding floating support flat plate, the floating support flat plate almost seals and covers the notch of the corresponding detection groove, so that the inner cavity of the detection groove forms a darkroom and is hardly influenced by external light;
meanwhile, the tail fiber comprises two types, one type is a chromatographic tail fiber with the diameter of 900 microns, the other type is a jumper connection tail fiber with the diameter of 3mm, the two types of tail fibers are different in structure, the jumper connection tail fiber is additionally provided with aramid fiber and an outer sheath on the basis of the chromatographic tail fiber, when the tail fiber is the chromatographic tail fiber with the diameter of 900 microns, the gland and the detection box body are connected in a clamping mode through a clamping structure, and after the tail fiber is tightly pressed on the surface of a corresponding floating support flat plate through the elastic shading pressing block, the floating support flat plate is small in downward moving amount due to the small diameter of the tail fiber, and the floating support flat plate cannot trigger a corresponding trigger switch; when the tail fiber is a chromatographic tail fiber with the diameter of 3mm, the gland is connected with the detection box body in a clamping manner through a clamping structure, and after the tail fiber is tightly pressed on the surface of the corresponding floating support flat plate by the elastic shading pressing block, the floating support flat plate has large downward moving amount due to the large diameter of the tail fiber, and the floating support flat plate triggers the corresponding trigger switch; thereby realizing the automatic identification of the tail fiber;
secondly, the connection performance detection device works, and transmits an optical signal with set power through a laser emission module in a detection box and is directly coupled into an optical fiber of the tail fiber; then, a laser receiving module in the other detection box is used for directly receiving weak optical signals in a coupling mode; then, comparing the optical signal transmitted by the laser transmitting module with the optical signal received by the laser receiving module, wherein the difference value of the two is less than or equal to a set value, the loss caused by the connection of the flange at one end of the jump fiber and the tail fiber is qualified, namely the connection performance of the flange at one end of the jump fiber and the tail fiber is qualified, otherwise, the connection performance of the flange at one end of the jump fiber and the tail fiber is unqualified; therefore, under the conditions that the optical fiber and the flange are well connected and the connection state of the optical fiber is not changed, whether the connection between the flanges at the two ends of the jump fiber and the tail fiber meets the requirement or not is directly detected at the same station, the workload of operators is reduced, and the working efficiency is improved.
Preferably, the mounting opening is communicated with the cavity in the box, the optical fiber recognition device further comprises a support, a vertical guide hole formed in the support and a guide rod arranged in the vertical guide hole in a sliding mode, the support spring is sleeved on the guide rod, the lower end of the guide rod is arranged on the lower limiting block, and the upper end of the guide rod is flat with the corresponding floating support plate.
Preferably, the trigger switch is provided on the bracket.
Preferably, a condenser lens is arranged below the laser module.
Preferably, the floating support plate includes a floating plate and a mirror plate disposed on an upper surface of the floating plate.
Preferably, the gland comprises a top wall and a side wall formed by the top wall and extending downwards conveniently, two optical fiber outlets are arranged on the lower edge of the side wall of the gland, and the two optical fiber outlets are distributed on two opposite sides of the gland. The jumping fiber or the tail fiber extends out of the gland through the fiber outlet.
Preferably, a gland limiting block is arranged on the outer side face of the detection box body and located below the gland. So, when coming rotatory gland lock through the gland stopper and detecting the box body, down displacement avoids the gland to move down the distance too big and the trigger switch that the mistake triggered corresponds.
Preferably, the trigger switch is a microswitch.
The invention has the beneficial effects that: the optical fiber and the flange can be well connected, and whether the optical fiber connection meets the requirement or not can be directly detected at the same station under the condition that the optical fiber connection state is not changed, so that the workload of operators is reduced, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of a split-type pigtail connection performance testing device in the working process.
In the figure:
detecting a box body 1;
a gland 2;
an optical fiber outlet 3;
a gland limiting block 4;
the device comprises a connection performance detection device 5, an elastic shading pressing block 5.1, a detection groove 5.2, a laser emission module 5.3, a laser receiving module 5.4 and a condenser 5.5;
an optical fiber identification device 6, a floating support flat plate 6.1, a support spring 6.2, a trigger switch 6.3,
the device comprises a bracket 6.4, a guide rod 6.5 and a lower limiting block 6.6;
flange 7.1, tail fiber 7.2, jump fiber 7.3.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present scheme, and are not construed as limiting the scheme of the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that a device or element referred to by a darkroom must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: as shown in fig. 1, a split type pigtail connection performance testing device includes two detection boxes. The detection box comprises a detection box body 1, a gland 2, an optical fiber identification device 6 and a connection performance detection device 5.
The detection box body 1 is of a hollow structure, and a box inner cavity is arranged in the detection box body.
The gland is connected with the detection box body through a buckle. In this embodiment, the gland includes the roof and is convenient for down extend the lateral wall that forms by the roof, be equipped with two optic fibre export 3 on the lower limb of the lateral wall of gland, and two optic fibre exports distribute in the relative both sides of gland.
The optical fiber identification device 6 comprises an installation opening arranged on the bottom surface of the detection gap, a floating support flat plate 6.1 positioned in the installation opening, a support spring 6.2 used for supporting the floating support flat plate and a trigger switch 6.3 positioned below the floating support flat plate. The mounting port is communicated with the inner cavity of the box. In this embodiment, the trigger switch is a microswitch.
The connection performance detection device 5 comprises an elastic shading pressing block 5.1 arranged on the lower surface of the gland, a detection groove 5.2 arranged on the lower surface of the elastic shading pressing block and a laser module arranged in the detection groove. In this embodiment, the elastic light-shielding pressing block is a black rubber block. After the gland is connected with the detection box body through the buckle, the lower surface of the elastic shading pressing block is tightly pressed on the surface of the corresponding floating support flat plate, and the floating support flat plate covers the notch of the corresponding detection groove.
The laser module in one of the two detection boxes is a laser emitting module 5.3, and the laser module in the other detection box is a laser receiving module 5.4.
The term "split type" in the subject name of this embodiment means that the two detection cassettes are separately provided.
After the flanges at the two ends of the jump fiber are connected with the tail fiber, the connection performance of the flange at one end of the jump fiber and the tail fiber is detected through a split type tail fiber connection performance testing device, and then the connection performance of the flange at the other end of the jump fiber and the other tail fiber is detected by adopting the same operation; the specific operation of detecting the connection performance of the flange at the end part of the jump fiber and the tail fiber is as follows:
firstly, opening a gland of a detection box; then, the jumping fiber 7.3 close to the flange at the end part of the jumping fiber is placed on a floating support flat plate of the detection box; and then, covering the gland to ensure that the gland is connected with the detection box body through a buckle.
Opening the cover of the other cartridge; then, the tail fiber 7.2 is placed on a floating support flat plate of the detection box; and then, covering the gland to ensure that the gland is connected with the detection box body through a buckle.
The flange 7.1 connecting the jumper fiber and the tail fiber is positioned between the two detection boxes.
After the gland of the detection box is connected with the detection box body in a buckling manner, the lower surface of the elastic shading pressing block is tightly pressed on the surface of the floating support flat plate, the elastic shading pressing block of one detection box tightly presses the jumping fiber 7.3 on the surface of the corresponding floating support flat plate, and the notch of the detection groove on the elastic shading pressing block is over against the jumping fiber; the elastic shading pressing block of the other detection box tightly presses the tail fiber 7.2 on the surface of the corresponding floating support flat plate, and the notch of the detection groove on the elastic shading pressing block is opposite to the tail fiber; because the elastic shading pressing block has elasticity, after the elastic shading pressing block presses the jumping fiber or the tail fiber on the surface of the corresponding floating support flat plate, the floating support flat plate almost seals and covers the notch of the corresponding detection groove, so that the inner cavity of the detection groove forms a darkroom and is hardly influenced by external light;
meanwhile, the tail fiber comprises two types, one type is a chromatographic tail fiber with the diameter of 900 microns, the other type is a jumper connection tail fiber with the diameter of 3mm, the two types of tail fibers are different in structure, the jumper connection tail fiber is additionally provided with aramid fiber and an outer sheath on the basis of the chromatographic tail fiber, when the tail fiber is the chromatographic tail fiber with the diameter of 900 microns, the gland and the detection box body are connected in a clamping mode through a clamping structure, and after the tail fiber is tightly pressed on the surface of a corresponding floating support flat plate through the elastic shading pressing block, the floating support flat plate is small in downward moving amount due to the small diameter of the tail fiber, and the floating support flat plate cannot trigger a corresponding trigger switch; when the tail fiber is a chromatographic tail fiber with the diameter of 3mm, the gland is connected with the detection box body in a clamping manner through a clamping structure, and after the tail fiber is tightly pressed on the surface of the corresponding floating support flat plate by the elastic shading pressing block, the floating support flat plate has large downward moving amount due to the large diameter of the tail fiber, and the floating support flat plate triggers the corresponding trigger switch; thereby realizing the automatic identification of the tail fiber;
secondly, the connection performance detection device works, and transmits an optical signal with set power through a laser emission module in a detection box and is directly coupled into an optical fiber of the tail fiber; then, a laser receiving module in the other detection box is used for directly receiving weak optical signals in a coupling mode; then, comparing the optical signal transmitted by the laser transmitting module with the optical signal received by the laser receiving module, wherein the difference value of the two is less than or equal to a set value, the loss caused by the connection of the flange at one end of the jump fiber and the tail fiber is qualified, namely the connection performance of the flange at one end of the jump fiber and the tail fiber is qualified, otherwise, the connection performance of the flange at one end of the jump fiber and the tail fiber is unqualified; in particular, the method comprises the following steps of,
firstly, a laser emission module in a detection box emits an optical signal with set power and is directly coupled into a fiber core of a tail fiber, if a trigger switch of an optical fiber identification device corresponding to the laser emission module is triggered, the tail fiber is a chromatographic tail fiber with the diameter of 3mm, and at the moment, the laser emission module emits an optical signal with the set power P of 10 milliwatts and is directly coupled into the fiber core of the tail fiber; if the trigger switch of the optical fiber identification device corresponding to the laser emission module is not triggered, the tail fiber is a chromatographic tail fiber with the diameter of 900um, and at the moment, the laser emission module emits an optical signal with the set power P of 5 milliwatts and is directly coupled into the fiber core of the tail fiber, so that the effective optical power directly coupled into the fiber core of the tail fiber under different sheaths is ensured to be the same through the identification of the tail fiber; then, a laser receiving module in the other detection box is used for directly receiving weak optical signals in a coupling mode; then, the optical power P of the optical signal emitted by the laser emitting module is compared with the optical power P1 of the optical signal received by the laser receiving module, and if the difference between the two is less than or equal to a set value (in this embodiment, the set value is 0.5 dB), the connection performance between the flange at one end of the jump fiber and the tail fiber is qualified, otherwise, the connection performance is not qualified; therefore, under the conditions that the optical fiber and the flange are well connected and the connection state of the optical fiber is not changed, whether the connection between the flanges at the two ends of the jump fiber and the tail fiber meets the requirement or not is directly detected at the same station, the workload of operators is reduced, and the working efficiency is improved.
And thirdly, opening the gland and taking out the tail fiber and the jump fiber.
In this embodiment, the split type pigtail connection performance testing device further includes a control box, a main control circuit board disposed in the control box, a control switch disposed on the surface of the control box, and a display screen. The control switch and the display screen are respectively connected with the main control circuit board through signal lines. The trigger switches in the detection boxes are respectively connected with the main control circuit board in the control box through signal lines, and the laser modules in the detection boxes are respectively connected with the main control circuit board in the control box through signal lines. The control switch is used for controlling the connection performance detection device to work. The optical power P of the optical signal emitted by the laser emitting module is compared with the optical power P1 of the optical signal received by the laser receiving module, and whether the connection performance between the flange at one end of the jump fiber and the tail fiber is qualified or not is judged on the main control circuit board. The display screen is used for displaying whether the connection performance of the flange at the end part of the jump fiber and the tail fiber is qualified or not.
Further, as shown in fig. 1, the optical fiber identification device 6 further includes a bracket 6.4, a vertical guide hole disposed on the bracket, and a guide rod 6.5 slidably disposed in the vertical guide hole. The supporting spring is sleeved on the guide rod, the lower end of the guide rod is arranged on the lower limiting block 6.6, and the upper end of the guide rod is provided with the corresponding floating supporting flat plate. The trigger switch is arranged on the bracket.
Further, as shown in fig. 1, a condenser 5.5 is disposed below each laser module.
Furthermore, the floating support plate comprises a floating plate and a reflective lens arranged on the upper surface of the floating plate.
Further, as shown in fig. 1, a gland limiting block 4 is arranged on the outer side surface of the detection box body and is located below the gland. So, when coming rotatory gland lock through the gland stopper and detecting the box body, down displacement avoids the gland to move down the distance too big and the trigger switch that the mistake triggered corresponds.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a split type tail optical fiber connection capability test device, characterized by includes two detection boxes, the detection box includes:
the detection box body is of a hollow structure, and a box inner cavity is arranged in the detection box body;
the gland is connected with the detection box body through a buckle;
the optical fiber identification device comprises a mounting opening arranged on the upper surface of the detection box body, a floating support flat plate positioned in the mounting opening, a support spring used for supporting the floating support flat plate and a trigger switch positioned below the floating support flat plate, wherein the mounting opening is communicated with the inner cavity of the box body;
the connection performance detection device comprises an elastic shading pressing block arranged on the lower surface of the gland, a detection groove arranged on the lower surface of the elastic shading pressing block, and a laser module arranged in the detection groove;
after the gland is connected with the detection box body through a buckle, the lower surface of the elastic shading pressing block is tightly pressed on the surface of the floating support flat plate, and the floating support flat plate covers the notch of the corresponding detection groove;
the laser module in one of the two detection boxes is a laser emitting module, and the laser module in the other detection box is a laser receiving module.
2. The split type pigtail connection performance testing device of claim 1, wherein the optical fiber recognition device further comprises a bracket, a vertical guide hole arranged on the bracket, and a guide rod slidably arranged in the vertical guide hole, the support spring is sleeved on the guide rod, the lower end of the guide rod is arranged on the lower limiting block, and the upper end of the guide rod is connected with the corresponding floating support flat plate.
3. The split type pigtail connection performance testing device of claim 2, wherein the trigger switch is arranged on the bracket.
4. The split type pigtail connection performance testing device of claim 1, 2 or 3, wherein a condenser lens is arranged below the laser module.
5. The split type pigtail connection performance testing device of claim 1, 2 or 3, wherein the floating support plate comprises a floating plate and a reflective lens arranged on the upper surface of the floating plate.
6. The split type pigtail connection performance testing device of claim 1, 2 or 3, wherein the gland comprises a top wall and a side wall formed by the top wall and extending downwards conveniently, two optical fiber outlets are arranged on the lower edge of the side wall of the gland, and the two optical fiber outlets are distributed on two opposite sides of the gland.
7. The split type pigtail connection performance testing device of claim 1, 2 or 3, wherein a gland limiting block is arranged on the outer side surface of the detection box body and is positioned below the gland.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113203550A (en) * | 2021-04-28 | 2021-08-03 | 江苏光谷通信设备有限公司 | Multi-core optical fiber pigtail cable performance test method and device |
| CN113708831A (en) * | 2021-08-31 | 2021-11-26 | 鹰潭市和兴光通讯器件有限公司 | Optical fiber connector quality inspection equipment before leaving factory |
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