CN115290463A - Device and application method for both torsion test and torsion angle test of optical fiber ribbon - Google Patents

Abstract

The invention belongs to the technical field of optical fiber ribbon testing, and discloses a device with an optical fiber ribbon torsion test function and an optical fiber ribbon torsion angle test function and an application method thereof. According to the invention, a first clamp is fixedly connected to the top end of a support, and a measuring component is arranged between the top end and the bottom end of the support; one end of the optical fiber ribbon is clamped in the first clamp, and the other end of the optical fiber ribbon penetrates through the measuring component and is connected with a load; the load is assembled in the measuring component in the optical fiber ribbon torsion test, the measuring component locks the torsion of the load in the horizontal direction, and the measuring component and the load jointly form a second clamp; the load is suspended below the measurement member during the ribbon twist angle test. The device provided by the invention can be used for simultaneously carrying out the torsion test on the optical fiber ribbon and the torsion angle test on the optical fiber ribbon, thereby expanding the application scene of a single device and reducing the test cost.

Description

Device with optical fiber ribbon torsion test and torsion angle test and its application method

technical field

The invention belongs to the technical field of optical fiber ribbon testing, and more particularly relates to a device capable of both optical fiber ribbon torsion testing and torsion angle testing and an application method thereof.

Background technique

Due to the advantages of high density and high space utilization, fiber optic ribbons can greatly increase network broadband capacity, making fiber optic ribbon cables more and more widely used in modern network construction. The optical fiber ribbon is composed of UV-cured coated optical fiber and UV-cured adhesive material. The optical fiber is concentrated in a linear array through the adhesive material. The adhesive material is tightly bonded with the primary coating layer of the optical fiber. According to the number of cured optical fibers, optical fiber ribbons can be divided into 2, 4, 6, 12, 24 core ribbons, etc.

The optical fiber ribbon will inevitably be subjected to torsional force during the cabling process, as well as the optical fiber ribbon cable during laying, use and maintenance. If the optical fiber ribbon cannot withstand a certain torsion capacity, for example, the fiber ribbon will scatter and cause integrity damage. , will affect the transmission performance and mechanical life of the fiber. In order to test the torsion resistance of the optical fiber ribbon, it is necessary to use the optical fiber ribbon torsion test device to verify the mechanical integrity and functional integrity of the optical fiber ribbon.

In addition, due to the structure of the optical fiber ribbon itself, in most cases, the optical fiber ribbon will naturally twist during use, and the degree of twist will also increase when subjected to environmental temperature shock or long-term aging. In order to test the residual torsion angle of the optical fiber ribbon after aging, it is necessary to use an optical fiber ribbon torsion angle testing device to test the natural torsion angle of the optical fiber ribbon.

The current test methods for optical fiber ribbon torsion and residual torsion refer to methods G6 and G8 in IEC 60794-1-23 "Optical fibrecables–Part 1-23: Generic specification–Basic optical cable test procedures–Cable element testmethods". The schematic diagram of the test device and brief test steps are given in the standard. However, the devices for the torsion test and the torsion angle test in the prior art are separate and independent, and two sets of devices are required to complete the torsion test and the torsion angle test of the optical fiber ribbon.

In addition, the existing torsion test device also has the following disadvantages: (1) the length of the sample to be tested is inconvenient to adjust and measure; (2) the torsion is manually operated, the speed and precision are uncontrollable, the test repeatability cannot be guaranteed, and the accuracy is not high . The existing torsion angle test device also has the following disadvantages: (1) the length of the sample to be tested is inconvenient to adjust and measure; (2) the light source irradiation method measures the torsion angle, which is inconvenient to operate; the pointer device is assembled with the sample and the load , affecting the balance of the optical fiber ribbon, thereby affecting the measurement results.

Contents of the invention

The present invention solves the problem that the optical fiber ribbon torsion test and the torsion angle test cannot be realized by one device in the prior art by providing a device capable of both the torsion test and the torsion angle test of the optical fiber ribbon and the application method thereof.

The present invention provides a device for optical fiber ribbon torsion test and torsion angle test, comprising: a first fixture, a measuring member, a load, and a bracket; between the top end of the bracket and the bottom end of the bracket; one end of the optical fiber ribbon is clamped in the first clamp, and the other end of the optical fiber ribbon passes through the measuring member and is connected to a load; the The load is assembled in the measuring member in the optical fiber ribbon torsion test, the measuring member locks the torsion of the load in the horizontal direction, the measuring member and the load together constitute a second clamp; the load is twisted in the optical fiber ribbon The angle test is suspended below the measuring member.

Preferably, the device for optical fiber ribbon torsion test and torsion angle test also includes: a torsion motor and a controller; the torsion motor is arranged on a mounting frame, and the mounting frame is fixedly installed on the bracket; the The controller is electrically connected to the twisting motor, the output shaft of the twisting motor is connected to the first clamp, and the first clamp is driven to rotate reciprocatingly by the twisting motor.

Preferably, the measuring member includes: a turntable, an angle ruler and a locking structure; the turntable and the angle ruler are sequentially arranged on the locking structure, and the turntable, the angle ruler and the locking structure There are through holes with the same center, and the through holes are used to vertically pass the optical fiber ribbon; the turntable contains an angle measurement pointer, and the turntable and the angle ruler are used to obtain the twist angle of the optical fiber ribbon; the lock A tight structure is used to lock the load in the ribbon torsion test.

Preferably, the measuring member further includes: an adjusting fixing piece; the adjusting fixing piece is used to adjust the fixing height of the measuring member on the bracket.

Preferably, the device for optical fiber ribbon torsion test and torsion angle test also includes: a straightedge; the straightedge is arranged parallel to the support, and the lower end of the first clamp is at the zero scale of the straightedge. The same horizontal position; the measuring member also includes: a distance measuring pointer; the distance measuring pointer is used to point to the ruler to obtain the gauge length of the optical fiber ribbon.

Preferably, a first notch is provided at the center of the lower end of the first clamp, and a rubber pad is provided on the inner surface of the first notch, and the first clamp is tightened and clamped by the first fastening knob on the side.

Preferably, the locking structure is a cylindrical ring; the inner peripheral surface of the cylindrical ring matches the shape of the outer surface of the load.

Preferably, the center of the load is provided with a second notch, the inner surface of the second notch is provided with a rubber pad, and the load is tightened and clamped by the second fastening knob on the side; the cylindrical ring has First height, the load has a second height, the second height is greater than the first height; when the load is assembled in the measuring member, the upper end surface of the load is in contact with the upper end surface of the cylindrical ring In the same horizontal plane, the second fastening knob is located below the cylindrical ring.

On the other hand, the present invention provides an application method of the above-mentioned device with optical fiber ribbon torsion test and torsion angle test. One end of the optical fiber ribbon is clamped in the first clamp, and the other end of the optical fiber ribbon is passed through A measuring member, and a load is connected to the other end of the optical fiber ribbon; when the device is used to perform the torsion test of the optical fiber ribbon, the load is assembled in the measuring member, so that the measuring member locks the load in the horizontal direction For twisting, the measuring member and the load together constitute a second fixture; when the device is used to test the torsion angle of the optical fiber ribbon, the load is suspended below the measuring member.

Preferably, the optical fiber ribbon torsion test comprises the following steps:

According to the test requirements, adjust the fixed position of the measuring member on the support in conjunction with a ruler;

Fix one end of the optical fiber ribbon in the first fixture, connect the load to the other end of the optical fiber ribbon, and assemble the load in the measuring member so that the upper end surface of the load is in contact with the The upper end faces of the measuring members are in the same horizontal plane;

Control the rotation of the first fixture by the controller and the torsion motor, so that the optical fiber ribbon is twisted until the specified conditions of the torsion test are reached, and then the torsion is stopped, and the torsion test of the optical fiber ribbon is completed;

The optical fiber ribbon torsion angle test comprises the following steps:

According to the test requirements, adjust the fixed position of the measuring member on the support in combination with the ruler, and record the gauge length of the optical fiber ribbon;

fixing one end of the optical fiber ribbon in the first fixture, connecting the load to the other end of the optical fiber ribbon, and suspending the load below the measuring member;

The controller and the torsion motor control the rotation of the first fixture to twist the optical fiber ribbon until it reaches the specified conditions of the twist angle test and then stop the twisting. After the optical fiber ribbon is stationary, pass the measurement means for obtaining a twist angle of said fiber optic ribbon;

A residual twist of the optical fiber ribbon is calculated based on the gauge length and the twist angle.

One or more technical solutions provided in the present invention have at least the following technical effects or advantages:

In the present invention, the first clamp is fixedly connected to the top of the bracket, and the measuring member is arranged between the top of the bracket and the bottom of the bracket; one end of the optical fiber ribbon is clamped in the first clamp, and the other end of the optical fiber ribbon passes through the measurement The component is connected with a load; the load is assembled in the measuring component in the optical fiber ribbon torsion test, and the measuring component locks the twist of the load in the horizontal direction, and the measuring component and the load together constitute the second fixture; the load is suspended in the measuring component in the optical fiber ribbon torsion angle test below the component. That is, the load in the present invention is in different usage states in the optical fiber ribbon torsion test and the optical fiber ribbon torsion angle test, and through the cooperation of the load and the measuring member, the device provided by the present invention can perform both the optical fiber ribbon torsion test and the torsion angle test, Compared with the way in which two independent devices are used to test two kinds of optical fiber ribbons respectively in the prior art, the present invention cleverly integrates the two devices, expands the application scene of a single device, and reduces the test cost.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a device for optical fiber ribbon torsion test and torsion angle test provided by Embodiment 1 of the present invention;

Fig. 2 is a side view of an optical fiber ribbon torsion test and torsion angle test device provided in Embodiment 1 of the present invention;

Fig. 3 is a structural diagram of the measuring components in a device that combines optical fiber ribbon torsion test and torsion angle test provided by Embodiment 1 of the present invention;

Fig. 4 is a schematic diagram of the horizontal twist of the locking load of the measurement member in a device provided by Embodiment 1 of the present invention which provides both the optical fiber ribbon torsion test and the torsion angle test.

Among them, 1-torsion motor, 2-first fixture, 3-optical fiber ribbon, 4-measuring member, 5-load, 6-ruler, 7-bracket, 8-controller;

401-adjusting fixture, 402-turntable, 403-angle ruler, 404-distance measuring pointer, 405-locking structure.

Detailed ways

In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

Example 1:

Embodiment 1 provides a device for both optical fiber ribbon torsion test and torsion angle test, see Fig. 1 and Fig. 2, including: torsion motor 1, first clamp 2, measuring member 4, load 5, ruler 6, bracket 7 , Controller 8.

The first clamp 2 is fixedly connected to the top of the bracket 7, the measuring member 4 is arranged between the top of the bracket 7 and the bottom of the bracket 7; one end of the optical fiber ribbon 3 is clamped on the In the first clamp 2, the other end of the optical fiber ribbon 3 passes through the measuring member 4 and is connected to a load 5; the load 5 is assembled in the measuring member 4 in the optical fiber ribbon torsion test, and the measuring member 4 lock the torsion of the load 5 in the horizontal direction, the measuring member 4 and the load 5 jointly constitute a second fixture; the load 5 is suspended below the measuring member 4 in the optical fiber ribbon torsion angle test.

The device provided by the present invention assembles the load 5 in the measuring member 4 only in the torsion test, so as to realize one end locking. In the twist angle test, the load is located under the measuring member 4, so that the optical fiber ribbon 3 can rotate naturally. The clamping center of the first clamp 2, the center of the measuring member 4, and the center of the load 5 have the same vertical line (the central axes coincide) in the initial state of loading the optical fiber ribbon 3 . The twist angle measurement value of the optical fiber ribbon 3 in the non-twisted state is zero.

The torsion motor 1 is arranged on a mounting frame, and the mounting frame is fixedly mounted on the bracket 7; the controller 8 is electrically connected to the torsion motor 1, and the output shaft of the torsion motor 1 is connected to the first A clamp 2 is connected, and the first clamp 2 is driven by the torsion motor 1 to reciprocate. Specifically, the torsion motor 1 adopts a program-controlled design, which can be unidirectionally or cyclically torsion, and can stay during the torsion process, and the dwell time is adjustable. In the present invention, the twisting of the optical fiber ribbon adopts the motor program-controlled type, and the parameters such as the twisting mode, the number of twisting circles, the twisting speed, and the number of cycles can be adjusted. The integrated weight load can be 100g as required by the standard, and different weights can also be processed according to different test methods. load, adopting the device of the invention can not only meet the requirements of the existing standard for the torsion angle test, but also can perform the torsion test of the optical fiber ribbon. The ruler 6 is arranged parallel to the bracket 7 , and the lower end of the first clamp 2 is at the same horizontal position as the zero scale of the ruler 6 .

Wherein, referring to FIG. 3 and FIG. 4 , the measuring member 4 includes: an adjusting fixture 401 , a turntable 402 , an angle ruler 403 , a distance measuring pointer 404 , and a locking structure 405 .

The rotating disk 402 and the angle ruler 403 are sequentially arranged on the locking structure 405, and the rotating disk 402, the angle ruler 403 and the locking structure 405 have through holes with the same center, and the through holes use through the optical fiber ribbon 3 vertically. The turntable 402 includes an angle measuring pointer, and the turntable 402 and the angle ruler 403 are used to obtain the twist angle of the optical fiber ribbon 3 . That is, the turntable 402 can drive the angle measurement pointer to rotate, so as to accurately measure the torsion angle. The locking structure 405 is used to lock the load 5 in the optical fiber ribbon torsion test. The adjusting fixture 401 is used to adjust the fixed height of the measuring member 4 on the bracket 7 . That is, the measuring member 4 can move up and down on the support 7 to adjust the height, which is applicable to samples of different test lengths, and the specific height of the measuring member 4 can be read by the ruler 6 . The distance measurement pointer 404 is used to point to the ruler 6 to obtain the gauge length of the optical fiber ribbon 3 . That is, the distance measurement pointer 404 is convenient for adjustment and accurate reading of the length of the tested sample.

For example, the center of the lower end of the first clamp 2 is provided with a first notch, the inner surface of the first notch is provided with a rubber pad, which can protect the surface of the optical fiber ribbon 3, and the first clamp 2 passes through the side The first fastening knob is tightened and clamped. The locking structure 405 can specifically be a cylindrical ring, and the inner peripheral surface of the cylindrical ring matches the shape of the outer surface of the load 5 . The center of the load 5 is provided with a second notch, the inner surface of the second notch is provided with a rubber pad, and the load 5 is tightened and clamped by the second fastening knob on the side; the cylindrical ring has a first a height, the load 5 has a second height, and the second height is greater than the first height; when the load 5 is assembled in the measuring member 4, the upper end surface of the load 5 and the cylindrical ring The upper end surfaces of the two are at the same horizontal plane, and the second fastening knob is located below the cylindrical ring.

Example 2:

Embodiment 2 provides an application method of the device having both optical fiber ribbon torsion test and torsion angle test as described in embodiment 1. One end of the optical fiber ribbon is clamped in the first clamp, and the other end of the optical fiber ribbon is Pass through the measuring member, and connect the load at the other end of the optical fiber ribbon; when using the device to perform the torsion test of the optical fiber ribbon, install the load in the measuring member, and make the measuring member lock the load at the level direction, the measuring member and the load together constitute a second fixture; when the device is used to test the torsion angle of the optical fiber ribbon, the load is suspended below the measuring member.

Specifically, the optical fiber ribbon torsion test includes the following steps:

(1) According to the test requirements, adjust the fixed position of the measuring member on the bracket in combination with a ruler.

By adjusting the position of the measuring member to meet the requirements of the length of the tested optical fiber ribbon.

(2) One end of the optical fiber ribbon is fixed in the first fixture, the other end of the optical fiber ribbon is connected to the load, and the load is assembled in the measuring member, so that the load is The upper end surface is on the same level as the upper end surface of the measuring member.

(3) Control the rotation of the first fixture by the controller and the torsion motor, so that the optical fiber ribbon is twisted until the specified conditions of the torsion test are reached, and then the torsion is stopped, and the torsion test of the optical fiber ribbon is completed.

Specifically, the optical fiber ribbon twist angle test includes the following steps:

(1) According to the test requirements, adjust the fixed position of the measuring member on the bracket in combination with the ruler, and record the gauge length of the optical fiber ribbon.

By adjusting the position of the measuring member to meet the requirements of the length of the tested optical fiber ribbon.

(2) Fix one end of the optical fiber ribbon in the first fixture, connect the load to the other end of the optical fiber ribbon, and suspend the load below the measuring member.

For example, one end of the fiber optic ribbon is secured in the first clamp in operation, the other end of the fiber optic ribbon is passed through the measuring member and then secured by the load.

(3) Control the rotation of the first fixture by the controller and the torsion motor, so that the optical fiber ribbon is twisted until it reaches the specified conditions of the twist angle test, and then stop twisting. After the optical fiber ribbon is stationary, pass The measuring means obtains the twist angle of the fiber optic ribbon.

By rotating the angle measurement pointer of the turntable, the pointer position of the angle measurement pointer is on the same horizontal line as the transverse section of the optical fiber ribbon, and the pointer position is the twist angle of the optical fiber ribbon.

(4) Calculate the residual twist of the optical fiber ribbon based on the gauge length and the twist angle.

The formula for calculating the residual twist is: T=θ/L, T is the residual twist, θ is the twist angle from the top to the bottom of the optical fiber ribbon, and L is the gauge length of the optical fiber ribbon.

The embodiment of the present invention provides an optical fiber ribbon torsion test and torsion angle test device and its application method at least include the following technical effects:

(1) The present invention is based on the ingenious design of the load and measurement components, and can use one device to complete the two items of the torsion test and the torsion angle test of the optical fiber ribbon. The application scenarios of a single device are expanded and the cost of testing is reduced.

(2) Based on the torsion motor and the controller, the present invention can accurately perform one-way or cyclic twisting of the optical fiber ribbon, facilitates the testing and performance research of the optical fiber ribbon, improves the testing accuracy, and ensures the testing repeatability.

(3) The present invention can conveniently adjust the height of the measuring member based on the ruler, the distance measuring pointer and the adjusting fixture, and further facilitate the adjustment and reading of the length of the optical fiber ribbon.

Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention without limitation, although the present invention has been described in detail with reference to examples, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (10)

1. A device with optical fiber ribbon torsion test and torsion angle test, characterized in that, comprising: a first clamp, a measuring member, a load, a support; the first clamp is fixedly connected to the top of the support, the The measuring member is arranged between the top end of the bracket and the bottom end of the bracket; one end of the optical fiber ribbon is clamped in the first clamp, and the other end of the optical fiber ribbon passes through the measuring member and is connected to a load The load is assembled in the measuring member in the optical fiber ribbon torsion test, and the measuring member locks the load in the horizontal direction torsion, and the measuring member and the load together constitute a second clamp; The optical fiber ribbon is suspended below the measuring member during the torsion angle test. 2. The device for optical fiber ribbon torsion test and torsion angle test according to claim 1, further comprising: a torsion motor and a controller; the torsion motor is arranged on a mounting frame, and the mounting frame is fixed Installed on the bracket; the controller is electrically connected to the twisting motor, the output shaft of the twisting motor is connected to the first clamp, and the first clamp rotates reciprocally under the drive of the twisting motor. 3. The device with optical fiber ribbon torsion test and torsion angle test according to claim 1, wherein the measuring member comprises: a turntable, an angle ruler and a locking structure; the turntable and the angle ruler are sequentially Set on the locking structure, the turntable, the angle ruler and the locking structure have a through hole with the same center, and the through hole is used to vertically pass the optical fiber ribbon; the turntable contains an angle The measuring pointer, the turntable and the angle ruler are used to obtain the torsion angle of the optical fiber ribbon; the locking structure is used to lock the load in the optical fiber ribbon torsion test. 4. The device with optical fiber ribbon torsion test and torsion angle test according to claim 3, characterized in that, the measurement member further comprises: an adjustment fixture; the adjustment fixture is used to adjust the measurement member at Fixed height on the stand. 5. The device for optical fiber ribbon torsion test and torsion angle test according to claim 3, further comprising: a ruler; the ruler is arranged parallel to the bracket, and the lower end of the first clamp It is at the same horizontal position as the zero scale of the straightedge; the measuring member further includes: a distance measuring pointer; the distance measuring pointer is used to point to the straightedge to obtain the gauge length of the optical fiber ribbon. 6. The device for optical fiber ribbon torsion test and torsion angle test according to claim 1, wherein a first notch is arranged at the center of the lower end of the first clamp, and the inner surface of the first notch is A rubber pad is provided, and the first clamp is tightened and clamped by the first fastening knob on the side. 7. The device for optical fiber ribbon torsion test and torsion angle test according to claim 3, wherein the locking structure is a cylindrical ring; the inner peripheral surface of the cylindrical ring is connected to the outer surface of the load shape matches. 8. The device for optical fiber ribbon torsion test and torsion angle test according to claim 7, characterized in that, the center of the load is provided with a second notch, and the inner surface of the second notch is provided with a rubber Pad, the load is tightened and clamped by the second fastening knob on the side; the cylindrical ring has a first height, the load has a second height, and the second height is greater than the first height; the load When assembled in the measuring member, the upper end surface of the load is at the same level as the upper end surface of the cylindrical ring, and the second fastening knob is located below the cylindrical ring. 9. An application method of the device having optical fiber ribbon torsion test and torsion angle test as claimed in any one of claims 1-8, characterized in that, one end of the optical fiber ribbon is clamped in the first clamp, passing the other end of the optical fiber ribbon through the measuring member, and connecting a load to the other end of the optical fiber ribbon; When the device is used for the torsion test of the optical fiber ribbon, the load is assembled in the measuring member, so that the measuring member locks the twisting of the load in the horizontal direction, and the measuring member and the load together constitute a second clamp ; When using the device to test the torsion angle of the optical fiber ribbon, the load is suspended below the measuring member. 10. The application method of the device having optical fiber ribbon torsion test and torsion angle test according to claim 9, characterized in that, the optical fiber ribbon torsion test comprises the following steps: According to the test requirements, adjust the fixed position of the measuring member on the support in conjunction with a ruler; Fix one end of the optical fiber ribbon in the first fixture, connect the load to the other end of the optical fiber ribbon, and assemble the load in the measuring member so that the upper end surface of the load is in contact with the The upper end faces of the measuring members are in the same horizontal plane; Control the rotation of the first fixture by the controller and the torsion motor, so that the optical fiber ribbon is twisted until the specified conditions of the torsion test are reached, and then the torsion is stopped, and the torsion test of the optical fiber ribbon is completed; The optical fiber ribbon torsion angle test comprises the following steps: According to the test requirements, adjust the fixed position of the measuring member on the support in combination with the ruler, and record the gauge length of the optical fiber ribbon; fixing one end of the optical fiber ribbon in the first fixture, connecting the load to the other end of the optical fiber ribbon, and suspending the load below the measuring member; The controller and the torsion motor control the rotation of the first fixture to twist the optical fiber ribbon until it reaches the specified conditions of the twist angle test and then stop the twisting. After the optical fiber ribbon is stationary, pass the measurement means for obtaining a twist angle of said fiber optic ribbon; A residual twist of the optical fiber ribbon is calculated based on the gauge length and the twist angle.

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