CN112880969B - Device and method for testing surface properties of optical fiber - Google Patents
Device and method for testing surface properties of optical fiber Download PDFInfo
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- CN112880969B CN112880969B CN202110225686.4A CN202110225686A CN112880969B CN 112880969 B CN112880969 B CN 112880969B CN 202110225686 A CN202110225686 A CN 202110225686A CN 112880969 B CN112880969 B CN 112880969B
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01M11/08—Testing mechanical properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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Abstract
The invention discloses a device and a method for testing the surface properties of an optical fiber, wherein the device comprises a hollow pipe bent according to a preset track, a tension meter arranged in the extension line direction of one end of the hollow pipe, and a tension device arranged in the extension line direction of the other end of the hollow pipe; the optical fiber to be tested penetrates through the hollow pipe, and the optical fiber to be tested and the hollow pipe are respectively fixed with the tension device and the tension meter; the tension device is used for providing power for the optical fiber and the hollow tube to move relatively at a constant speed; the tension meter is used for reading the power of the optical fiber and the hollow tube which move relatively at a constant speed. According to the optical fiber surface property testing device and method provided by the invention, the surface property of the optical fiber is represented by the friction force between the hollow tube and the optical fiber with the curved track, so that the current blank of testing the surface property of the polarization maintaining optical fiber and even the optical fiber is filled up, the quantitative standard of the surface property of the optical fiber is provided, and the uniform, automatic and high-flux test is easily realized.
Description
Technical Field
The invention belongs to the technical field of optical fiber testing, and particularly relates to a device and a method for testing surface properties of optical fibers.
Background
The polarization maintaining optical fiber is typically applied to the winding of a sensitive ring in an optical fiber gyroscope, bonding glue is needed to be used for bonding a circle of optical fiber in the winding process of the sensitive ring, and the problem of poor wetting property of the optical fiber and the glue sometimes occurs due to the difference of the batch property of the optical fiber in the bonding process, and the specific expression is as follows: in the process of winding the optical fiber ring, the glue on the surface of the optical fiber is not uniformly spread and is easy to shrink, and the local glue is discharged; after the optical fiber ring is cured, glue between the optical fibers flows away, white lines appear on the ring body, and loose fibers of the optical fiber ring even appear in severe cases.
The reason for these problems is slight differences in the production process of each batch of optical fiber, resulting in differences in the surface properties of the optical fiber coating, which are microscopically surface roughness differences. The existing polarization maintaining optical fiber testing methods do not relate to the surface properties of the polarization maintaining optical fiber, and have no testing indexes for representing the surface properties of the polarization maintaining optical fiber.
Disclosure of Invention
The present invention provides a device and a method for testing optical fiber surface properties, which aims to provide a standardized and automated device and a method for quantitatively testing optical fiber surface properties, so as to solve the technical problem that no polarization maintaining optical fiber surface property quantitative testing method and standard exists at present.
To achieve the above object, according to one aspect of the present invention, there is provided an optical fiber surface property testing apparatus, comprising: the tension meter comprises a hollow pipe bent according to a preset track, a tension meter arranged in the extension line direction of one end of the hollow pipe, and a tension device arranged in the extension line direction of the other end of the hollow pipe;
the optical fiber to be tested penetrates through the hollow pipe, and the optical fiber to be tested and the hollow pipe are respectively fixed with the tension device and the tension meter; the tension device is used for providing power for the optical fiber and the hollow tube to move relatively at a constant speed; the tension meter is used for reading the power of the optical fiber and the hollow tube which move relatively at a constant speed.
Preferably, the hollow tube of the testing device for the surface properties of the optical fiber is bent at a preset bending radius, preferably, the bending radius is between 5 and 50mm, and the inner diameter of the hollow tube is 2 to 10 times of the diameter of the optical fiber coating to be tested; is made of metal, glass or plastic.
Preferably, the hollow tubes of the testing device for the surface properties of the optical fiber are bent into a preset number of S-shapes.
Preferably, the optical fiber surface property testing device is fixed with a tensile device or a tension meter to be tested; the hollow pipe is fixed with a tension meter or tension equipment.
Preferably, the optical fiber surface shape testing device has the advantages that the power of the optical fiber and the hollow tube which are provided by the tension device and move relatively at a constant speed is in a vertical plane or a horizontal plane.
Preferably, the device for testing the surface property of the optical fiber comprises a cantilever moving along a guide rail; the tension device is fixed with the optical fiber through the cantilever.
Preferably, the testing device for the surface property of the optical fiber comprises an optical fiber carrier; the optical fiber carrier is provided with a guide wheel, and the hollow pipe is wound on the guide wheel; the optical fiber carrier is fixed with the tension meter.
According to another aspect of the present invention, there is provided a method for testing the surface properties of an optical fiber, comprising the steps of:
(1) passing the optical fiber to be measured through a hollow tube bent into a preset track;
(2) so that the optical fiber to be detected and the hollow tube generate relative motion at a constant speed;
(3) and reading the power of the optical fiber to be detected and the hollow tube when the optical fiber to be detected and the hollow tube move relatively at a constant speed so as to represent the surface property of the optical fiber.
Preferably, the method for testing the surface properties of the optical fiber is applied to the device for testing the surface properties of the optical fiber provided by the invention.
Preferably, in the method for testing the surface properties of the optical fiber, the speed of uniform relative motion of the optical fiber to be tested and the hollow tube is 5-500 mm/min, and the fluctuation range of the uniform relative motion is less than or equal to 0.05 mm/min.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
according to the optical fiber surface property testing device and method provided by the invention, the surface property of the optical fiber is represented by the friction force between the hollow tube and the optical fiber with the curved track, so that the current blank of testing the surface property of the polarization maintaining optical fiber and even the optical fiber is filled up, the quantitative standard of the surface property of the optical fiber is provided, and the uniform, automatic and high-flux test is easily realized. According to the preferred scheme, the optical fiber to be tested is pulled out of the S-shaped bent hollow tube, so that when the optical fiber is pulled, two side surfaces are uniformly stressed, and the test is more accurate; the tension meter for recording the pulling process is located on the base of the tension device and does not move along with the movement of the cantilever, so that the measured value is not influenced by the movement and is more real and stable.
Drawings
FIG. 1 is a structural diagram of a device for testing the surface friction of a polarization maintaining optical fiber according to the present invention;
FIG. 2 is a diagram of a fiber carrier of the testing device of the present invention;
FIG. 3 is a comparison chart of the friction test of the two groups of optical fibers in the examples.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:
the device comprises a tension device 1, a movable cantilever 2, an optical fiber clamp 3, an optical fiber carrier 4, a tension meter 5, a computer 6, an optical fiber to be tested 7, a hollow tube 8 and a guide wheel 9.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The device for testing the surface properties of the optical fiber, disclosed by the invention, comprises a tensile device 1, a movable cantilever 2, an optical fiber clamp 3, an optical fiber carrier 4 and a tension meter 5, wherein the tensile device is connected with the movable cantilever 2;
the optical fiber carrier 4 is used for generating friction force when the optical fiber 7 to be tested moves, and comprises a hollow tube 8 and a guide wheel 9 as shown in fig. 2. The hollow pipe is bent according to a preset track, preferably a smooth transition track, such as a spiral track or an S-shaped track, so that a Z-shaped track and other tracks with turns are avoided; more preferably one or more S-shaped traces, to provide uniform friction between the two sides of the optical fiber and the hollow tube. The optical fiber carrier is provided with a guide wheel, and the hollow pipe is wound on the guide wheel; the optical fiber carrier is fixed with the tension meter. The specific scheme is as follows: the hollow pipe 8 is bent into an S-shaped hollow pipe through two guide wheels 9 according to a preset bending radius, and the inlet and outlet direction of the S-shaped hollow pipe is consistent with the moving direction of the movable cantilever 2; the bending radius is 5-50 mm, the inner diameter of the hollow tube is 2-10 times of the diameter of the optical fiber coating to be tested, and the hollow tube is preferably made of metal, glass or plastic; the diameter range of the optical fiber coating to be tested which can be supported by the device is 60-600 mu m, and the diameter range of the cladding is 40-400 mu m; a tension meter is arranged in the extension line direction of one end of the hollow pipe, and a tension device is arranged in the extension line direction of the other end of the hollow pipe. And the optical fiber to be tested penetrates through the hollow pipe, and the optical fiber to be tested and the hollow pipe are respectively fixed with the tension equipment and the tension meter.
The movable cantilever 2 slides along the guide rail, the optical fiber clamp 3 is fixed on the movable cantilever 2 or the tension meter 5, the optical fiber carrier 4 is connected with the tension meter 5 or the movable cantilever, preferably, the tension meter 5 is fixed on the base of the tension device 1, the push-pull tension meter is positioned on the device base and does not move along with the movement of the cantilever, so that the measured value is not influenced by the movement, and the measured value is more real and stable. The optical fiber and the hollow tube which are provided by the pulling device move relatively at a constant speed in a vertical plane or a horizontal plane. When the optical fiber and the hollow tube which are provided by the tension device move relatively at a constant speed in a vertical plane, the testing device is vertical, the guide rail is vertical, the space is saved, the optical fiber clamp 3 is fixed with the movable cantilever 2, and the hollow tube is fixed with the tension meter as a component of a carrier; when the optical fiber and the hollow tube which are provided by the tension device move relatively at a constant speed are in a horizontal plane, the testing device is a bedroom, the guide rail is horizontal, and the relative motion at the constant speed is easier to control.
The pulling force equipment 1 is used for providing acting force with constant pulling speed, namely power for relative uniform motion of the optical fiber and the hollow tube, the pulling speed range is 5-500 mm/min, the fluctuation range of the pulling speed range is less than or equal to 0.05mm/min, and a vertical pulling force machine or a horizontal pulling force machine is preferred;
the tension meter 5 is used for reading the power of the optical fiber and the hollow tube which move relatively at a constant speed, preferably has a zeroing function, the measuring range is +/-10 to +/-100N, and the precision is preferably 0.001N.
During operation, the optical fiber to be tested is inserted into the optical fiber carrier 4, one end of the optical fiber is fixed by the optical fiber clamp 3, the movable cantilever 2 is pulled by the tension device 1 to drive the optical fiber clamp 3 to pull the optical fiber, the tension meter records the tension value used when the optical fiber is pulled out by different distances, and the recorded data is imported into a computer for analysis and calculation.
The invention provides a method for testing the surface properties of an optical fiber, which comprises the following steps:
(1) passing the optical fiber to be measured through a hollow tube bent into a preset track;
(2) so that the optical fiber to be detected and the hollow tube generate relative motion at a constant speed;
(3) and reading the power of the optical fiber to be detected and the hollow tube when the optical fiber to be detected and the hollow tube move relatively at a constant speed so as to represent the surface property of the optical fiber.
The testing device for the surface properties of the optical fiber, provided by the invention, is preferably applied, and specifically comprises:
inserting the polarization maintaining optical fiber to be tested into an inlet of the S-shaped bent hollow tube, slowly pulling out the optical fiber from the outlet at a constant speed, recording the pulling distance and the required pulling force value, calculating the average pulling force value in the pulling process, wherein the average pulling force value is the surface friction force of the optical fiber to be tested, and representing the surface property of the optical fiber by using the friction force.
The pulling speed range of the optical fiber is 5-500 mm/min, and the fluctuation range of the optical fiber is less than or equal to 0.05 mm/min;
the diameter range of the optical fiber coating to be tested is 60-600 mu m, and the diameter range of the cladding is 40-400 mu m;
the pulling distance of the optical fiber is 3-10 cm; in order to improve the testing precision, when the average value of the pulling force in the pulling process is calculated, the pulling force value is corresponding to 10% -90% of the pulling distance of the optical fiber.
The following are examples:
a testing device for optical fiber surface properties is shown in figure 1 and comprises a tension device 1, a movable cantilever 2, an optical fiber clamp 3, an optical fiber carrier 4 and a tension meter 5;
the optical fiber carrier 4 is used for generating friction when the optical fiber 7 to be tested moves, and comprises a hollow tube 8 and a guide wheel 9 as shown in fig. 2. The hollow pipe is bent according to a preset track and is a smooth transition track, particularly an S-shaped track, so that two side surfaces of the optical fiber and the hollow pipe form uniform friction force. The optical fiber carrier is provided with a guide wheel, and the hollow pipe is wound on the guide wheel; the optical fiber carrier is fixed with the tension meter. The specific scheme is as follows: the hollow pipe 8 is bent into an S-shaped hollow pipe through two guide wheels 9 with the radius of 10mm according to a preset bending radius, and the inlet and outlet direction of the S-shaped hollow pipe is consistent with the moving direction of the movable cantilever 2; the inner diameter of the hollow pipe is 0.3mm and is made of plastic; a tension meter is arranged in the extension line direction of one end of the hollow pipe, and a tension device is arranged in the extension line direction of the other end of the hollow pipe. The optical fiber to be tested penetrates through the hollow pipe, and the optical fiber to be tested and the hollow pipe are respectively fixed with the tension device and the tension meter.
The movable cantilever 2 slides along the guide rail, the optical fiber clamp 3 is fixed on the movable cantilever 2 or the tension meter 5, the optical fiber carrier 4 is connected with the tension meter 5 or the movable cantilever, the tension meter 5 is fixed on the base of the tension device 1, the push-pull tension meter is positioned on the device base and does not move along with the movement of the cantilever, so that the measured value is not influenced by the movement, and the measured value is more real and stable. The optical fiber provided by the tension device and the hollow tube move relatively at a constant speed in a vertical plane, the testing device is vertical, the guide rail is vertical, the space is saved, the optical fiber clamp 3 is fixed with the movable cantilever 2, and the hollow tube is fixed with the tension meter as a component of a carrier.
The pulling force equipment 1 is used for providing acting force with constant pulling speed, namely power for relatively uniform motion of the optical fiber and the hollow tube, the pulling speed range is 5-500 mm/min, the fluctuation range is less than or equal to 0.05mm/min, and the pulling force equipment is a vertical pulling force machine;
the tension meter 5 is used for reading the power of the optical fiber and the hollow tube which move relatively at a constant speed, preferably has a zeroing function, the measuring range is +/-10 to +/-100N, and the precision is 0.001N;
the method for testing the surface friction force of the polarization maintaining optical fiber by applying the device provided by the embodiment uses the device for testing the surface friction force of the polarization maintaining optical fiber of 80/165 μm in the batch A and the batch B, and comprises the following steps:
step 1, inserting an optical fiber into a plastic hollow tube with the inner diameter of 0.3mm, and enabling the hollow tube to bypass two guide wheels with the radius of 10mm to form an S-shaped bend;
and 3, recording a pulling force value required by pulling the optical fiber in real time in the pulling process, wherein the effective value range of the pulling force value is 0.5cm before the pulling distance is removed, and 0.5cm after the pulling distance is removed. And (4) plotting the change of the pulling force value and the pulling distance, and recording the average value of the pulling force in the pulling process for representing the surface friction force of the polarization maintaining optical fiber.
The measured surface friction of 80/165 μm polarization maintaining optical fibers of lot A and lot B is shown in FIG. 3, where the mean surface friction of lot A is 1.074N, the mean surface friction of lot B is 1.429N, the mean surface friction of lot B is greater than that of lot A, and the adhesion with glue during the wrap-around application is better than that of lot A.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. An optical fiber surface property testing device, comprising: a tensile force device, an optical fiber carrier, and a tension meter;
the optical fiber carrier comprises a hollow tube and a guide wheel; the hollow pipes are bent according to a preset track, and the hollow pipes are bent into S shapes with preset number; the optical fiber carrier is provided with a guide wheel, and the hollow pipe is wound on the guide wheel;
the optical fiber carrier is fixed with the tension meter;
the tension meter is arranged in the extension line direction of one end of the hollow pipe, and the tension equipment is arranged in the extension line direction of the other end of the hollow pipe;
the optical fiber to be measured passes through the hollow tube;
the optical fiber to be tested is fixed with the tension equipment, and the hollow tube is fixed with the tension meter; or
The optical fiber to be tested is fixed with the tension meter, and the hollow tube is fixed with the tension equipment;
the tension device is used for providing power for the optical fiber and the hollow tube to move relatively at a constant speed; the tension meter is used for reading the power of the optical fiber and the hollow tube which move relatively at a constant speed.
2. The apparatus for testing the surface texture of the optical fiber according to claim 1, wherein the hollow tube is bent at a predetermined bending radius between 5mm and 50 mm.
3. The apparatus for testing the surface properties of an optical fiber according to claim 1, wherein the inner diameter of the hollow tube is 2 to 10 times the diameter of the coating of the optical fiber to be tested.
4. The apparatus for testing the surface texture of the optical fiber according to any one of claims 1 to 3, wherein the hollow tube is made of metal, glass, or plastic.
5. The apparatus for testing the surface texture of the optical fiber according to claim 1, wherein the pulling device provides the power for the optical fiber and the hollow tube to move relatively at a constant speed in a vertical plane or a horizontal plane.
6. The apparatus for testing the surface texture of an optical fiber according to claim 1, wherein the apparatus comprises a cantilever moving along a guide rail; the tension device is fixed with the optical fiber through the cantilever.
7. A method for testing the surface texture of an optical fiber, which comprises the steps of using the apparatus for testing the surface texture of an optical fiber according to any one of claims 1 to 6, comprising:
(1) passing the optical fiber to be measured through a hollow tube bent into a preset track;
(2) so that the optical fiber to be detected and the hollow tube generate relative motion at a constant speed;
(3) and reading the power of the optical fiber to be detected and the hollow tube when the optical fiber to be detected and the hollow tube move relatively at a constant speed so as to represent the surface property of the optical fiber.
8. The method for testing the surface properties of the optical fiber according to claim 7, wherein the uniform speed relative motion speed of the optical fiber to be tested and the hollow tube is 5-500 mm/min, and the fluctuation range is less than or equal to 0.05 mm/min.
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| JPS60125806A (en) * | 1983-12-13 | 1985-07-05 | Aloka Co Ltd | Fitting method of conducting wire |
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| CN112255110A (en) * | 2020-11-16 | 2021-01-22 | 北京斯普乐电线电缆有限公司 | Wire flexibility test member, test device and test method |
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| JPS60125806A (en) * | 1983-12-13 | 1985-07-05 | Aloka Co Ltd | Fitting method of conducting wire |
| CN102939522A (en) * | 2010-05-07 | 2013-02-20 | 普睿司曼股份公司 | Method for checking the correct installation of a. bend-insensitive optical cable and optical cable suitable for the method thereof |
| CN206431033U (en) * | 2017-03-30 | 2017-08-22 | 长飞光纤光缆(上海)有限公司 | A kind of optical cable testing device for friction coefficient |
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Effective date of registration: 20230822 Address after: No. 2 Chejian Road, Jiuli Town, Emeishan City, Leshan City, Sichuan Province, 614200 Patentee after: Sichuan Lefei Photoelectric Technology Co.,Ltd. Patentee after: YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK Ltd. Address before: No.9, Guanggu Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430074 Patentee before: YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK Ltd. |