WO2020133293A1 - Test fixture, test system, and method of use thereof - Google Patents

Abstract

A test fixture (100) comprises a bottom plate (10), at least one floating plate assembly (20), and a driving assembly (30) corresponding to the floating plate assembly (20). Each driving assembly (30) is mounted on a side of the bottom plate (10). Each floating plate assembly (20) is slidably mounted on the bottom plate (10). Each driving assembly (30) is connected to the floating plate assembly (20). Multiple first winding assemblies (11) are provided on the bottom plate (10). Each floating plate assembly (20) comprises multiple second winding posts (25). Each first winding assembly (11) and a corresponding second winding post (25) work together to bend an optical fiber under test, such that when being wound, the optical fiber is evenly stressed, thereby improving the accuracy of test data. A test system (200) automatically acquires and analyzes macro bending loss data according to a pre-configured program, and is therefore highly automated. The method of use for the test system (200) only requires manually connecting an optical fiber to the test system (200) once, thereby reducing interference from human factors on the test data, and improving the accuracy of measurement results.

Description

Test tooling, test system and method of use Technical field

The invention relates to the field of optical fiber testing, in particular to a testing tool, a testing system and a method for using the optical fiber macrobending loss.

Background technique

The optical fiber macrobending loss parameter is an important transmission performance parameter of optical fiber products, and it needs to be tested according to the requirements of optical fiber product specifications using professional instruments. With the rapid development of the optical fiber communication industry, the demand for bend-insensitive optical fibers in the optical network is increasing year by year, and the macro-bending loss performance is the main parameter index that distinguishes ordinary optical fibers from bend-insensitive optical fibers, so macro-bending loss The test business volume also increased accordingly. At present, the mandrel tooling of the hardware part in the prior art is different, completely separated from the control unit of the measuring device, and manual intervention is required to complete the winding operation during the fiber macrobending test. Manual operation is difficult to control the fiber winding force State, often get inaccurate data.

Summary of the invention

In view of this, it is necessary to provide a test tool, a test system, and a method for using it with high degree of automation and accurate measurement results.

The invention provides a test tool for clamping an optical fiber to be tested. The test tool includes a bottom plate, at least one floating plate component, and a number of drive components corresponding to the floating plate component, each of the drive components is installed on the On the side of the bottom plate, each of the floating plate components is slidably mounted on the bottom plate, and each driving component is connected to the floating plate component to drive the floating plate component to slide relative to the bottom plate, and the bottom plate There are multiple sets of first winding assemblies with the same or different diameters. Each floating plate assembly includes a number of second winding posts. Each set of first winding assemblies cooperates with corresponding second winding posts for Bend the fiber to be tested.

Further, each group of first winding components includes a plurality of first winding columns arranged at equal intervals, and a limiting column is protruded from one side of each of the first winding components, and the limiting column is used to The position where the floating plate assembly slides relative to the bottom plate is defined.

Further, an end portion of the first bobbin away from the bottom plate is provided with an extension portion, and the extension portion extends outward from the end of the first bobbin, and the diameter of the extension portion is larger than that connected to it The diameter of the first bobbin.

Further, each floating plate assembly further includes a body and a guide rail, a guide groove is provided on one side of the body, the guide rail is installed on the bottom plate, the guide rail cooperates with the guide groove, so that the body is along the The rail slides.

Further, the second winding posts are arranged at equal intervals on the side of the body, and the second winding posts and the corresponding first winding posts have the same diameter and the same number.

Further, the body is provided with a plurality of guide grooves penetrating the body, the guide grooves correspond to the second bobbin one by one and are disposed on one side of the second bobbin, the first winding Each first winding post of the wire assembly passes through the corresponding guide groove and can slide in the guide groove, and a limiting groove penetrating the body is also provided on the body, and each of the limiting posts Pass through the corresponding limit slot.

Further, each of the driving components includes a cylinder and a solenoid valve matched with the cylinder, the solenoid valve controls the opening or closing of the cylinder.

Further, two ends of the bottom plate are relatively installed with a mounting base and a loop diameter control device, the mounting base is used to fix an optical fiber connector, and the loop diameter control device is used to control the loop diameter of the bend of the optical fiber to be tested.

Further, the ring diameter control device includes a fixing plate and a plurality of fixing piles connected to one side of the fixing plate, and the plurality of fixing piles are arranged at intervals to resist the optical fiber to be tested.

Further, a plurality of first support members are provided on the side of the bottom plate facing away from the first winding assembly, and a handle is provided on the side of each floating plate assembly facing away from the bottom plate. For manually adjusting the position of the floating plate assembly.

The present invention provides a test system including the test tooling. The test system further includes a measurement component, a controller, and a plurality of connection components. One end of each connection component is connected to the measurement component, and the other end is used to connect the test tool. The optical fiber to be tested, the measuring component is used to measure the optical power of the optical fiber, the test tool is used to wind the optical fiber, and the controller is connected and controls the measuring component and the The test tool is used to measure the optical power of the optical fiber in a straight state and a coiled state, and calculate the macrobending loss of the optical fiber.

Further, the measurement component includes a light source component and a light detector component, the light source component is used to provide a light source to the optical fiber to generate an optical signal, and the light detector component is used to receive the optical signal and measure the optical fiber Optical power.

Further, the light source assembly includes a single-mode light source and a multi-mode light source, which are used to provide optical signals to the single-mode optical fiber and the multi-mode optical fiber, respectively.

Further, the connection assembly is installed on the mounting base, wherein one end of the connection assembly is connected to the light source assembly and is selectively connected to the single-mode light source or the multi-mode light source according to the type of the optical fiber to be tested, Another end of the connection assembly is connected to the photodetector.

The invention provides a method for using the test system. The method steps are as follows:

S1, determine the type of optical fiber to be tested, and connect the single-mode light source or the multi-mode light source to one of the connection components;

S2, connecting the two ends of the optical fiber to be tested to the two connection components respectively;

S3, start the controller;

S4, clamping the optical fiber to be tested in the test tooling;

S5, select the corresponding single mode fiber or multimode fiber macrobend test function;

S6, the controller enters an automatic test state, and the macrobending loss of the optical fiber is measured;

S7. The controller controls the test system to measure the macrobending loss of the optical fiber to be tested at different wavelengths in the bobbin of other diameters.

Further, the clamping method of step 4 is to fix both ends of the optical fiber to be tested on the connecting assembly on the mounting base, and the middle of the optical fiber to be tested is held between the fixing piles Therefore, the optical fiber to be tested naturally forms a double row of optical fiber to be tested, and the double row of the optical fiber to be tested is arranged and placed between two rows of winding columns of the first winding column and the second winding column.

Further, the automatic test method in step 6 is that the controller controls one of the bodies to slide so that the first winding post and the corresponding second winding post are embedded in adjacent winding posts The gaps are arranged side by side in a row, and the optical fiber to be tested sandwiched between the first winding post and the corresponding second winding is in a winding state.

The test tool provided by the present invention includes a bottom plate, at least one floating plate component and a number of driving components corresponding to the floating plate component. Each of the driving components is mounted on one side of the bottom plate, each of the floating plate components is slidably mounted on the bottom plate, and each driving component is connected to the floating plate component to drive the floating plate component Slide relative to the bottom plate. The bottom plate is provided with a plurality of first winding assemblies with the same or different diameters, and each floating plate assembly includes a plurality of second winding posts. Each group of the first winding assembly cooperates with the corresponding second winding column, and is used to bend the optical fiber to be tested, so that the optical fiber to be tested is subjected to a uniform force during winding, and the accuracy of the test data is improved.

The test system provided by the present invention includes the test tooling. The test system further includes a measurement component, a controller, and a plurality of connection components. Each connection component has one end connected to the measurement component, and the other end is used to connect the Measuring optical fiber, the measuring component is used to measure the optical power of the optical fiber, the test tool is used to wind the optical fiber, and the controller is connected to and controls the measuring component and the test tool through circuits, respectively , Used to measure the optical power of the optical fiber in a straight state and a coiled state, and calculate the macrobending loss of the optical fiber. The test system provided by the present invention uses the controller to control the measurement component and the test tooling, and can automatically complete the collection and analysis of macrobending loss data according to a preset program, which has the advantage of a high degree of automation.

The use method of the test system provided by the invention only needs to manually connect the optical fiber to the test system once, and the automatic test reduces the interference of human factors on the test data, and has the advantage of accurate measurement results.

BRIEF DESCRIPTION

FIG. 1 is a structural diagram of a test tool in an embodiment of the invention.

2 is a functional block diagram of the test system in the first embodiment of the present invention.

FIG. 3 is a functional block diagram of the test system in the second embodiment of the present invention.

4 is a schematic flowchart of a method of using a test system in an embodiment of the invention.

Symbol description of main components

Test tooling	100
Bottom plate	10
First winding assembly	11
First bobbin	111
Extension	113
Limit post	13
First extension board	15
Second extension board	17
First support	19
Floating board assembly	20
Ontology	twenty one
Guide groove	twenty two
guide	twenty three
Second bobbin	25
The guide groove	27
Limit slot	28
handle	29
Drive components	30
cylinder	31
Install the base	40
Bezel	41
Second support	43
Ring diameter control device	50
Fixed plate	51
Fixed pile	53

Test system	200
Measuring components	210
Light source assembly	211
Single mode light source	2111
Multimode light source	2113
Photodetector	212
Connect components	220
The optical fiber connector	221
Fiber Jumper	223
Controller	230

The following specific embodiments will further illustrate the present invention with reference to the above drawings.

detailed description

In order to be able to understand the above objects, features and advantages of the embodiments of the present invention more clearly, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the features in the embodiments of the present application can be combined with each other.

In the following description, many specific details are set forth in order to fully understand the embodiments of the present invention. The described embodiments are a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the embodiments of the present invention.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field that belong to the embodiments of the present invention. The terminology used in the description of the present invention herein is for the purpose of describing specific embodiments, and is not intended to limit the embodiments of the present invention.

Please refer to FIG. 1, which is a schematic structural diagram of a test tool 100 according to an embodiment of the present invention. The test tool 100 includes a bottom plate 10, a plurality of floating plate assemblies 20, a plurality of drive assemblies 30, a mounting base 40, and a ring diameter control device 50. Each floating plate assembly 20 is slidably mounted on the bottom plate 10. Each driving component 30 is installed on the side of the bottom plate 10, and each driving component 30 is connected to the floating plate component 20 to drive the floating plate component 20 to slide relative to the bottom plate 10. The mounting base 40 and the ring diameter control device 50 are relatively installed at both ends of the bottom plate 10, and the mounting base 40 is used to fix an optical fiber connector. The loop diameter control device 50 is used to control the loop diameter of the bend of the optical fiber to be measured.

The bottom plate 10 has a generally rectangular structure. The bottom plate 10 is provided with a plurality of first winding assemblies 11 having the same or different diameters, and each group of the first winding assemblies 11 includes a plurality of first winding posts 111 arranged at equal intervals. In this embodiment, the number of the first winding assembly 11 is 3 groups. The first group includes three first bobbins 111 with a diameter of 15 mm, the second group includes three first bobbins 111 with a diameter of 20 mm, and the third group includes six first bobbins with a diameter of 30 mm线柱111。 Line column 111. The first bobbin 111 is a cylindrical structure. An end 113 of the first bobbin 111 away from the bottom plate 10 is provided with an extension 113. The extension 113 is from an end of the first bobbin 111. Extending outward, the diameter of the extending portion 113 is larger than the diameter of the first bobbin 111 connected thereto, so as to hold the optical fiber to be tested. The plurality of first winding assemblies 11 are arranged at intervals along the longitudinal direction of the bottom plate 10, and the center of the cross section of the first winding post 111 is on the same straight line. The bottom plate 10 has a plurality of limit posts 13 protruding to one side, and each of the limit posts 13 is a cylindrical body, which is installed on one side of each corresponding first winding assembly 11. One end of the limit post 13 passes through the corresponding floating plate assembly 20 and is used to define a position where the floating plate assembly 20 slides relative to the bottom plate 10. A plurality of first extension plates 15 are provided on one side of the bottom plate 10, and each of the first extension plates 15 is provided with the driving assembly 30 on one side. A second extension plate 17 is provided at each end of the bottom plate 10, one side of the second extension plate 17 facing away from the bottom plate 10 is connected to the mounting base 40, and the other second extension plate 17 is used The ring diameter control device 50 is installed. A plurality of first support members 19 are also provided on the side of the bottom plate 10 facing away from the first winding assembly 11. In this embodiment, the first support 19 is a foot cup, and the number of the first support 19 is four, which are respectively installed at the four corners of the bottom plate 10, so that the bottom plate 10 is in use Time to remain stable.

Multiple sets of first winding assemblies 11 are respectively used to make the optical fiber to be tested in a winding state with different diameters, and the number of the first winding assemblies 11 is not limited to the three sets in this embodiment. The first winding post 111 is used to bend the optical fiber to be tested. The number of the first winding posts 111 included in each group of the first winding assembly 11 is not limited to 3 or 6 in this embodiment. It is determined according to the number of turns of the fiber to be tested.

The number of the floating board assemblies 20 is the same as the number of the first winding assembly 11. In this embodiment, the number of the floating board assemblies is three. Each floating plate assembly 20 includes a body 21, a guide rail 23, and a plurality of second winding columns 25. A guide slot 22 is defined on one side of the body 21, the guide rail 23 is installed on the bottom plate 10, and the guide rail 23 The guide groove 22 cooperates to slide the floating plate assembly 20 along the guide rail 23. Each floating plate assembly 20 cooperates with one of the first winding assemblies 11. Specifically, the body 21 is generally rectangular in structure, and the second winding posts 25 are arranged on the side of the body 21 at equal intervals. The center of the cross section of each second winding post 25 is on the same straight line. The diameter of the second bobbin 25 and the first bobbin 111 matched with it are equal and the number is the same. The body 21 is also provided with a plurality of guide grooves 27 penetrating the body 21, each of the guide grooves 27 is located on the side of a second winding post 25, each of the first winding assembly 11 A first bobbin 111 passes through the corresponding guide groove 27 and can slide in the guide groove 27. The guide groove 27 is a waist-shaped groove, and the groove width of the guide groove 27 matches the diameter of the first bobbin 111 that cooperates therewith. The body 21 is further provided with a limiting slot 28 penetrating the body 21, the limiting slot 28 is used to allow the corresponding limiting column 13 to pass through. Each floating plate assembly 20 is further provided with a handle 29 on a side facing away from the bottom plate 10, and the handle 29 is used to manually adjust the position of the floating plate assembly 20.

Each of the driving components 30 is connected to a floating board component 20. In this embodiment, the number of the driving components is three. Each of the driving assemblies 30 includes a cylinder 31 and a solenoid valve (not shown) matched with the cylinder 31. The cylinder 31 is mounted on one of the first extension plates 15. One end of the cylinder 31 is connected to the body 21 to drive the body 21 to slide along the guide rail 23 relative to the bottom plate 10. One end of the solenoid valve is connected to the corresponding cylinder 31, and the other end is connected to a controller. The controller controls the opening or closing of the cylinder 31 through the solenoid valve.

The mounting base 40 is generally a rectangular structure, and a baffle 41 is provided at each end of the mounting base 40, and the baffle 41 is used to hold an optical fiber connector. The mounting base 40 is connected to one end of one of the second extension plates 17. A plurality of second support members 43 are provided on one side of the mounting base 40. In this embodiment, the second support member 43 is a foot cup, and the number of the second support members 43 is four, which are respectively installed at four corners of the mounting base 40 to make the installation The base 40 remains stable during use.

The ring diameter control device 50 is fixed to one side of the other second extension plate 17 by fasteners, welding, or integral molding. The ring diameter control device 50 includes a fixing plate 51 and a plurality of fixing piles 53 connected to one side of the fixing plate 51. The fixing plate 51 is generally a rectangular structure. A plurality of the fixed piles 53 are arranged at intervals to resist the optical fiber to be tested. In this embodiment, the number of the fixed piles 53 is four, which are sequentially arranged at intervals to form a rectangle.

When the test tool 100 is in use, two optical fiber connectors are held in the mounting base 40, two ends of the optical fiber to be tested are respectively connected to the optical fiber connectors, and the optical fiber to be tested is roughly The middle position is caught between the fixed piles 53. Since the two ends of the optical fiber to be tested are fixed on the connector on the mounting base 40, and the middle of the optical fiber to be tested is held between the fixing piles 53, the optical fiber to be tested naturally forms a double row Test fiber. When the driving assembly 30 is activated, the cylinder 31 drives the body 21 to slide until the first bobbin 111 is far away from the second bobbin 25 and the two rows of bobbins formed are sufficient to pass through When the optical fiber to be tested is turned off, the driving assembly 30 is turned off. The two rows of the optical fiber to be tested are arranged and placed in the middle of the two rows of winding columns of the first winding column 111 and the second winding column 25. At this time, the optical fiber is in a straight state. When the driving assembly 30 is activated, the cylinder 31 drives one of the bodies 21 to slide until the first winding post 111 and the second winding post 25 cooperating therewith are embedded in adjacent winding posts When the gap is lined up in a row, the driving assembly 30 is closed, and the optical fiber to be tested is in a winding state at this time. The bent portion of the optical fiber to be tested bears between the fixing piles 53 so that the diameter of the bent portion of the optical fiber to be tested is sufficiently large to reduce the impact on the test. The test tool 100 cooperates with the first bobbin 111 and the second bobbin 25 to make the stress of the optical fiber to be tested uniform during winding, thereby improving the accuracy of the test data.

Please refer to FIGS. 2 and 3 together. FIG. 2 is a functional module diagram of the test system 200 in the first embodiment of the present invention, and FIG. 3 is a functional module diagram of the test system 200 in the second embodiment of the present invention. The test system 200 is used to measure the macrobending loss of optical fibers. The test system 200 includes a test tool 100, a measurement component 210, a controller 230, and a number of connection components 220. Each connecting component 220 is connected to the measuring component 210 at one end, and is used to connect the optical fiber to be tested at the other end. The measurement component 210 is used to measure the optical power of the optical fiber to be tested. The test tool 100 is used for winding the optical fiber to be tested. The controller 230 is connected to and controls the measurement assembly 210 and the test tool 100 through a circuit, which is used to measure the optical power of the optical fiber to be tested in a straight state and a coiled state, and calculate the Measure the macrobending loss of the fiber.

The measurement component 210 includes a light source component 211 and a light detector 212. The light source component 211 and the light detector 212 are respectively connected to one of the connection components 220. The light source assembly 211 is used to provide a light source to the optical fiber to be tested and generate an optical signal, and the light detector 212 is used to receive the optical signal and measure the optical power of the optical fiber to be tested. In this embodiment, the light source assembly 211 includes a single-mode light source 2111 and a multi-mode light source 2113, the single-mode light source 2111 is used to provide an optical signal to a single-mode fiber, and the multi-mode light source 2113 is used to provide a multi-mode fiber Provide optical signals. The light source component 211 can be selected to use the single-mode light source 2111 or the multi-mode light source 2113 to connect with the connecting component 220 to provide a light source for the optical fiber to be tested according to the type of the optical fiber, and use the same light detector 212 to receive light Signals to save test resources and control test costs. The light source assembly 211 may be a halogen light source, an LED light source, and a laser point light source. In this embodiment, the light source component 211 is a laser point light source to solve the problem of poor monochromaticity of the test optical signal wavelength, minimize the deviation of the test wavelength from the required wavelength, and improve the authenticity of the test data.

In this embodiment, the number of the connection components 220 is two. The connection assembly 220 is installed on the installation base 40. The connecting component 220 connected to the light source component 211 can be selected to be used in conjunction with the single-mode light source 2111 or the multi-mode light source 2113 according to the type of the optical fiber to be tested. The connection assembly 220 includes an optical fiber connector 221 and an optical fiber jumper 223 matching the optical fiber connector. One end of the optical fiber connector 221 is connected to the single-mode light source 2111 or the multi-mode light source 2113 in the light source assembly 211 through the optical fiber jumper 223. One end of the other optical fiber connector 221 is connected to the photodetector 212 through the optical fiber jumper 223, and the other ends of the two optical fiber connectors 221 are used to connect both ends of the optical fiber to be tested. The optical fiber connector 221 is convenient for a worker to replace the optical fiber to be tested, and can couple the optical signal output by the light source assembly 211 into the optical fiber. The optical fiber connector 221 is used in conjunction with the optical fiber jumper 223 to reduce the drift of the optical signal and effectively improve the accuracy of test data.

The controller 230 is respectively connected to the single-mode light source 2111, the multi-mode light source 2113 and the photodetector 212 through a circuit. To switch the single-mode light source 2111 and the multi-mode light source 2113; set and switch the wavelength of the light signal of the light source assembly 211; set and switch the wavelength of the light signal received by the photodetector 212. The controller 230 is also connected to the solenoid valve through a circuit to control the sliding of the floating plate assembly 20 through the solenoid valve, so that the optical fiber to be tested is in a straight or coiled state. The controller 230 can automatically complete the collection and analysis of pipeline macrobending loss data according to a preset program. The degree of automation is high to eliminate the interference of human factors on the test data and ensure that the performance of the test system is always in a stable state.

Please refer to FIG. 4. FIG. 4 is a schematic flowchart of a method of using the test system 200 according to an embodiment of the present invention, which specifically includes the following steps:

S1, determine the type of optical fiber to be tested, and connect the single-mode light source 2111 or the multi-mode light source 2113 to one of the connection components 220;

Specifically in this embodiment, the single-mode light source 2111 or the multi-mode light source 2113 is connected to one of the optical fiber connectors 221 using the optical fiber jumper 223.

S2, connecting the two ends of the optical fiber to be tested to the two connection components 220 respectively;

Specifically in this embodiment, the two ends of the optical fiber to be tested are cut and connected to the two optical fiber connectors 221 respectively.

S3, start the controller 230;

Specifically in this embodiment, the controller 230 activates the driving assembly 30, the cylinder 31 drives the body 21 to slide, until the first winding post 111 is away from the second winding post 25 and forms Between the two rows of bobbins is enough to pass through the optical fiber to be tested and close the driving assembly 30.

S4, clamping the optical fiber to be tested in the test tool 100;

Specifically in this embodiment, since both ends of the optical fiber to be tested are fixed to the optical fiber connector 221 on the mounting base 40, the middle of the optical fiber to be tested is held between the fixing piles 53, Therefore, the optical fiber to be tested naturally forms a double-row optical fiber to be tested. The two rows of the optical fiber to be tested are arranged and placed between the two winding columns of the first winding column 111 and the second winding column 25, and the optical fiber is in a straight state at this time. The bent portion of the optical fiber to be tested bears between the fixing piles 53 so that the diameter of the bent portion of the optical fiber to be tested is sufficiently large to reduce the impact on the test.

S5, select the corresponding single mode fiber or multimode fiber macrobend test function;

S6, the controller 230 enters an automatic test state, and the macrobending loss of the optical fiber is measured;

Specifically in this embodiment, when measuring a single-mode optical fiber, the controller 230 controls the single-mode light source 2111 to select a test wavelength, and sets the photodetector 212 synchronously, and sets the wavelength of the photodetector 212 to The test wavelength of the single-mode light source 2111 is consistent. The controller 230 reads the initial optical power from the photodetector 212 as P1. The controller 230 controls the single-mode light source 2111 and the photodetector 212 to automatically switch to another wavelength of the single-mode light source, and reads the initial optical power of another wavelength as P2. The controller 230 controls one of the bodies 21 to slide so that the corresponding first winding post 111 and the corresponding second winding post 25 are embedded in the gap between adjacent winding posts and arranged in a row At this time, the optical fiber to be tested is in a winding state. The controller 230 controls and switches the single-mode light source 2111 and the photodetector 212 to read the optical power after the optical fiber is bent and sequentially records them as P3 and P4. The controller 230 uses P3-P1 to calculate and process the macrobending loss at the first wavelength, and uses P4-P2 to calculate and process the macrobending loss at the second wavelength. When measuring a multimode optical fiber, the controller 230 controls the multimode light source 2113 to select a test wavelength, and sets the photodetector 212 synchronously, setting the wavelength of the photodetector 212 to that of the multimode light source 2113 The test wavelength is the same, and the rest of the process is the same as the process of measuring single-mode fiber.

S7. The controller 230 controls the test system 200 to measure the macrobending loss of the optical fiber to be tested at different wavelengths in the bobbin of other diameters.

Specifically in this embodiment, the controller 230 drives the body 21 to slide until the first winding post 111 is away from the second winding post 25, so that the optical fiber to be tested is in a flat state again. The controller 230 drives the other of the bodies 21 to slide, and repeats the automatic test process to measure the macrobending loss of the optical fiber to be tested at different wavelengths in the bobbin of other diameters.

The test tool 100 provided by the present invention cooperates with the first winding post 111 and the second winding post 25 to make the stress of the optical fiber to be tested uniform during winding, thereby improving the accuracy of the test data. The test system 200 provided by the present invention controls the measurement component 210 and the test tool 100 through the controller 230, and can automatically complete the collection and analysis of macrobending loss data according to a preset program, which has the advantage of a high degree of automation. The use method of the test system provided by the present invention only needs to manually connect the optical fiber to the test system 200 once, and the automatic test reduces the interference of human factors on the test data, and has the advantage of accurate measurement results.

The above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention and not to limit them. Although the embodiments of the present invention are described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technology of the embodiments of the present invention can be Modifications or equivalent replacements of the solutions shall not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (17)

1. A test tool for clamping an optical fiber to be tested, characterized in that the test tool includes a bottom plate, at least one floating plate component, and a number of drive components corresponding to the floating plate component, each of the drive components is mounted on On one side of the bottom plate, each of the floating plate components is slidably mounted on the bottom plate, and each driving component is connected to the floating plate component to drive the floating plate component to slide relative to the bottom plate, the bottom plate There are multiple sets of first winding components with the same or different diameters. Each floating plate assembly includes a number of second winding columns. Each group of the first winding components cooperates with the corresponding second winding columns. Used to bend the fiber under test.
2. The test tool as claimed in claim 1, wherein each group of first winding components includes a plurality of first winding columns arranged at equal intervals, and a limiting column is protruded from one side of each of the first winding components The limit post is used to define a sliding position of the floating plate assembly relative to the bottom plate.
3. The test tool according to claim 2, wherein an end portion of the first winding post away from the bottom plate is provided with an extension portion, and the extension portion extends outward from an end of the first winding post, The diameter of the extension is larger than the diameter of the first bobbin connected to it.
4. The test tool according to claim 1, wherein each floating plate assembly further includes a body and a guide rail, a guide groove is provided on one side of the body, the guide rail is installed on the bottom plate, the guide rail and the The guide groove cooperates to slide the body along the guide rail.
5. The test tool according to claim 4, wherein the second winding columns are arranged at equal intervals on the side of the body, and the diameters of the second winding columns and the corresponding first winding columns Equal and the same amount.
6. The test tool according to claim 5, wherein a plurality of guide grooves penetrating the body are provided on the body, and the guide grooves correspond to the second bobbin and are provided in the On one side of the second bobbin, each first bobbin of the first bobbin assembly passes through a corresponding guide groove and can slide in the guide groove, and the body is further provided with a A limiting slot, each of the limiting posts passes through the corresponding limiting slot.
7. The test tool according to claim 1, wherein each of the driving assemblies includes a cylinder and a solenoid valve matched with the cylinder, the solenoid valve controlling the opening or closing of the cylinder.
8. The test tooling according to claim 1, characterized in that: two ends of the bottom plate are respectively installed with a mounting base and a ring diameter control device, the mounting base is used to fix an optical fiber connector, and the ring diameter control device is used to control The diameter of the bend of the optical fiber to be tested.
9. The test tool according to claim 8, wherein the ring diameter control device includes a fixing plate and a plurality of fixing piles connected to one side of the fixing plate, the plurality of fixing piles are arranged at intervals to resist The fiber to be tested.
10. The test tool according to claim 1, wherein the side of the bottom plate facing away from the first winding assembly is further provided with a plurality of first support members, and each of the floating plate assemblies faces away from the bottom plate A handle is also provided on one side, and the handle is used to manually adjust the position of the floating plate assembly.
11. A test system, including the test tooling according to any one of claims 1 to 10, characterized in that the test system further includes a measurement component, a controller, and a plurality of connection components, each of which is connected at one end In the measurement assembly, the other end is used to connect the optical fiber to be tested, the measurement assembly is used to measure the optical power of the optical fiber, the test tool is used to wind the optical fiber, and the controller passes The circuit connects and controls the measurement assembly and the test tool, respectively, for measuring the optical power of the optical fiber in a straight state and a coiled state, and calculating the macrobending loss of the optical fiber.
12. The test system according to claim 11, wherein the measurement component includes a light source component and a light detector component, the light source component is used to provide a light source to the optical fiber to generate an optical signal, and the light detector component is used Receiving the optical signal and measuring the optical power of the optical fiber.
13. The test system according to claim 12, wherein the light source assembly includes a single-mode light source and a multi-mode light source, which are used to provide optical signals to the single-mode optical fiber and the multi-mode optical fiber, respectively.
14. The test system according to claim 13, wherein the connection assembly is mounted on the mounting base, wherein one end of the connection assembly is connected to the light source assembly and is selected according to the type of the optical fiber to be tested The single-mode light source or the multi-mode light source is connected, and the other end of the connection assembly is connected to the photodetector.
15. An application method of using the test system as claimed in claim 14, wherein the method steps are as follows:

    S1, determine the type of optical fiber to be tested, and connect the single-mode light source or the multi-mode light source to one of the connection components;

    S2, connecting the two ends of the optical fiber to be tested to the two connection components respectively;

    S3, start the controller;

    S4, clamping the optical fiber to be tested in the test tooling;

    S5, select the corresponding single mode fiber or multimode fiber macrobend test function;

    S6, the controller enters an automatic test state, and the macrobending loss of the optical fiber is measured;

    S7. The controller controls the test system to measure the macrobending loss of the optical fiber to be tested at different wavelengths in the bobbin of other diameters.
16. The method for using the test system according to claim 15, characterized in that the clamping method in step 4 is to fix both ends of the optical fiber to be tested on the connection assembly on the mounting base, so The middle part of the optical fiber to be tested is held between the fixing piles, so the optical fiber to be tested naturally forms a double row of optical fiber to be tested, and the double row of the optical fiber to be tested is arranged and placed on the first winding post and The second winding post is in the middle of the two rows of winding posts.
17. The method for using the test system according to claim 15, wherein the automatic test method in step 6 is that the controller drives one of the bodies to slide by controlling a driving component to make the first bobbin And the corresponding second winding post is embedded in the gap between adjacent winding posts and arranged in a row, and the optical fiber to be tested sandwiched between the first winding post and the corresponding second winding is in a winding Circle status.

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