CN109406026B - Device and method for testing optical cable optical fiber drawing force - Google Patents
Device and method for testing optical cable optical fiber drawing force Download PDFInfo
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- CN109406026B CN109406026B CN201811222105.6A CN201811222105A CN109406026B CN 109406026 B CN109406026 B CN 109406026B CN 201811222105 A CN201811222105 A CN 201811222105A CN 109406026 B CN109406026 B CN 109406026B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0033—Force sensors associated with force applying means applying a pulling force
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Abstract
The invention belongs to the field of optical cable manufacturing process equipment, and particularly relates to a device and a method for testing the drawing force of an optical fiber of a butterfly-shaped optical cable. The optical cable to be tested is fixed on the device frame by cutting the optical cable to be tested, preprocessing, returning to the step I of the optical cable, fixing the optical cable to be tested, connecting the tension device, applying force testing, recording a test result and retesting seven steps, the drawing force of the optical fiber of the optical cable can be accurately given by matching with a tension machine, and the test result can provide a data support with strength for quality control of the optical cable.
Description
Technical Field
The invention belongs to the field of optical cable manufacturing process equipment, and particularly relates to a device and a method for testing optical cable optical fiber drawing force.
Background
The continuous emergence of new broadband applications has led to the rapid introduction of various broadband new services, represented by high-speed internet services, into the lives of people, and Fiber To The Home (FTTH) has been an inevitable trend. Especially, the start-up of 4G networks, and the associated policies for enhancing information consumption, have led to widespread use and great development of fiber to the (FTTx) access. In the field of communications, the development of broadband access is very rapid, and FTTx gradually becomes a hot spot in the construction of optical fiber networks. FTTx is one of the most important solutions, it can provide very high bandwidth and is relatively easy to expand. The butterfly-shaped lead-in optical cable used for the FTTx access network is one of the butterfly-shaped lead-in optical cables, has the characteristics of small size, light weight, easiness in installation and arrangement and the like, can save construction cost and pipeline space, is favored by network operators, and becomes a preferred optical cable of FTTH operators.
When the butterfly-shaped lead-in optical cable is used, the butterfly-shaped lead-in optical cable is required to be tightly wrapped by the outer sheath, and the optical fiber cannot be drawn out of the butterfly-shaped lead-in optical cable within a certain length. The purpose of the requirement is to ensure that the transmission performance of the optical fiber is not influenced under the condition that the butterfly-shaped leading-in optical cable is subjected to external intrusion. YD/T1997.1-2014 requires that after the butterfly-shaped leading-in optical cable is subjected to a separation test, the optical fiber can be completely exposed, the sheath at the position of the reinforcing member is kept complete, and the reinforcing member is not exposed. The remaining cable ends were held gently by hand without having to pinch the cable hard to pull the separated fibers vertically downward, and the fibers should not fall freely from the remaining cable samples. At present, some customers require that after the butterfly-shaped leading-in optical cable completes the separation test, the end part of the rest optical cable is lightly held by hands, the optical cable cannot be pinched by force, and the separated optical fiber cannot be pulled out from the rest optical cable by hands. However, the pulling force required to manually pull the optical fiber in the butterfly-shaped drop cable can meet the customer requirements is not specified in the standard, and a device for testing the pulling force of the optical fiber in the butterfly-shaped drop cable is lacking.
Disclosure of Invention
One of the purposes of the invention is to provide a device for testing the drawing force of optical fibers in a butterfly-shaped drop optical cable, which has simple structure and convenient implementation and does not need manual drawing by operators; the invention also aims to provide the optical fiber drawing force testing device in the butterfly-shaped drop optical cable, which meets the requirement of customers on the drawing force and accurately controls the drawing force.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a test optical cable optic fibre pull out force device, includes the mount at least, includes:
oversheath mounting, wherein the oversheath mounting divide into:
an outer sheath separating part fixing piece for fixing the outer sheath of the separating part on the fixing frame,
the outer sheath body part fixing piece is used for fixing the outer sheath of the non-separated part on the fixing frame;
and the optical cable optical fiber access end of the tension device is coaxial with the optical cable optical fiber fixed by the outer sheath body part fixing part.
And a guide wheel is arranged between the optical cable fiber access end of the tension device and the fixing part of the body part of the outer sheath, and the axis of the guide wheel is coaxial with the optical cable fiber access end of the tension device.
The outer sheath separating part fixing piece comprises a first groove formed in the upper surface of the fixing frame, a fixing pressing plate is detachably connected to the first groove, and the fixing pressing plate is connected with the fixing frame through a spring bolt.
The outer sheath separation part fixing piece also comprises a second groove formed in the upper surface of the fixing frame, the second groove is detachably connected with a fixing pressing plate, and the first groove and the second groove are distributed in a V shape; the fixed pressing plate is connected with the fixed frame through a spring bolt.
The fixed pressing plate is divided into an inner plate and an outer plate; one end of the inner plate and one end of the outer plate are fixed at the same point on the fixing frame, the inner plate extends to the bottom in the first groove or the second groove, the width of the inner plate is matched with the inner diameter of the first groove and the second groove on the fixing frame, and the width of the outer plate is larger than the inner diameter of the first groove and the second groove on the fixing frame.
The outer sheath body fixing part comprises a third groove formed in the upper surface of the fixing frame, two sides of the third groove are respectively rotatably connected with a tabletting device, and the tabletting device is connected with the fixing frame through a rotating shaft fixed on the fixing frame.
The clamping piece is fixedly connected with the optical cable and optical fiber access end on the tension device and consists of two stainless steel discs with different outer diameters, and rubber cushion layers cover the opposite surfaces of the two discs with different outer diameters; the outer diameter of the small disc is 10-20 mm, and the outer diameter of the large disc is 15-25 mm.
A graduated scale is arranged on one side of the outer sheath body part fixing piece along the axial direction; the tension device is a tension machine or a digital display spring scale.
An application of a device for testing optical cable optical fiber drawing force in testing butterfly-shaped optical cable optical fibers.
A test method for testing the optical cable optical fiber drawing force device comprises the following steps
The method comprises the following steps: intercepting optical cable to be tested
Cutting a section of optical cable to be tested, wherein the length of the cut is 500-600 mm;
step two: preprocessing optical cable to be tested
Stripping one end of the optical cable to be measured intercepted in the step one by using a wire stripper for 200-300 mm, and manually tearing the other end of the optical cable for 50-100 mm, wherein the torn part is a first sheath and a second sheath;
step three: fixing optical cable to be tested
Respectively placing the first sheath and the second sheath in the optical cable to be tested processed in the step two into a first groove and a second groove on a fixing frame, respectively pressing the first sheath and the second sheath by a fixed pressing plate on one side of the first groove and one side of the second groove, and screwing a spring bolt on the fixed pressing plate; putting the remaining optical cable to be tested into the third groove and pressing the optical cable by using a pressing device;
step four: connecting tension device
After the third step, connecting the optical fiber separated by the wire stripper in the second step to a clamping piece on a tension device through a guide wheel, and clamping the optical fiber to be tested by the clamping piece;
step five: force application test
The tension device is used for carrying out a force application tension test at a tension rate of 10-20 mm/min;
step six: recording the test results
Recording the magnitude of the force application and the condition of the optical cable to be tested;
step seven: retesting
And when the optical fiber of the optical cable to be tested is not drawn, the test result is invalid, and the first step is returned to for testing again.
Has the advantages that: the invention is characterized in that a fixing frame, a stretching device and a first groove, a second groove and a third groove are arranged on the upper surface of the fixing frame, the first groove, the second groove and the third groove are arranged in a Y shape, the first groove is communicated with the third groove, the second groove is communicated with the third groove, one side of the first groove and one side of the second groove are respectively detachably connected with a fixed pressing plate, two sides of the third groove are respectively rotatably connected with a pressing device, and the opposite side of the third groove, on which the first groove and the second groove are arranged, is provided with a guide wheel; the device is simple in structure, the optical cable to be tested is fixed on the device frame through seven steps of intercepting the optical cable to be tested, preprocessing the optical cable to be tested, fixing the optical cable to be tested, connecting the tension device, applying force for testing, recording a test result and retesting, the pulling force of the optical fiber of the optical cable can be accurately given by matching with the tension machine, and the test result can provide a data support with strength for quality control of the optical cable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of guide wheel A of the present invention;
FIG. 3 is a cross-sectional view of guide wheel A of the present invention;
FIG. 4 is a schematic view of the stationary platen of the present invention;
FIG. 5 is a flow chart of the test of the present invention.
In the figure, 1-a fixing frame; 2-fixing the pressing plate; 3-a tabletting device; 4-a graduated scale; 5-a guide wheel; 6-a tensile machine; 7-a clamping member; 8-a groove; 9-a first groove; 10-a second groove; 11-third recess.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1-4, the device for testing the optical fiber drawing force of the optical cable at least comprises a fixing frame 1, and further comprises:
oversheath mounting, wherein the oversheath mounting divide into:
an outer sheath separating part fixing piece for fixing the outer sheath of the separating part on the fixing frame 1,
an outer sheath body part fixing member for fixing the outer sheath of the non-separated part on the fixing frame 1;
and the optical cable optical fiber access end of the tension device is coaxial with the optical cable optical fiber fixed by the outer sheath body part fixing part.
Preferably, a guide wheel 5 is further arranged between the optical cable fiber access end of the tension device and the outer sheath body part fixing part, and the axis of the guide wheel 5 is coaxial with the optical cable fiber access end of the tension device.
When the optical cable is actually used, firstly, a section of the lead-in optical cable to be detected is cut, and the cut length is 500-600 mm; stripping one end of the cut lead-in optical cable to be tested by using a wire stripper for 200-300 mm, and tearing the other end of the lead-in optical cable by using a hand for 50-100 mm, wherein the torn part is a first sheath and a second sheath; fixing the processed outer sheath separating part fixing piece and the outer sheath body part fixing piece in the optical cable to be tested; the lead-in optical cable is prevented from shaking and deviating from the position when being subjected to an optical fiber drawing test; separating the optical fiber from the lead-in optical cable for a certain distance, and connecting the optical fiber to a tension device through a guide wheel 5, wherein the tension device clamps the optical fiber to be tested; and the tension device is used for carrying out force application tension test at a tension rate of 10-20 mm/min. The fixed frame 1 is provided with a guide wheel 5, and the main purpose is to control the direction control in the optical fiber drawing process.
The optical fiber drawing force testing device is simple in structure and convenient to operate, and an operator can test the drawing force of the optical fiber in the optical cable without manually drawing.
Example two:
the device for testing the optical fiber pulling force of the optical cable shown in fig. 1 is different from the first embodiment in that: the outer sheath separating part fixing piece comprises a first groove 9 formed in the upper surface of the fixing frame 1, a fixing pressing plate 2 is detachably connected to the first groove 9, and the fixing pressing plate 2 is connected with the fixing frame 1 through a spring bolt.
During the in-service use, install first sheath or second sheath in first recess 9, fix with fixed pressing plate 2, better keep the stability of the optical cable optic fibre that awaits measuring, make the result of test more accurate.
Example three:
the device for testing the optical fiber pulling force of the optical cable shown in fig. 1 is different from the second embodiment in that: the outer sheath separating part fixing piece also comprises a second groove 10 formed in the upper surface of the fixing frame 1, the second groove 10 is detachably connected with a fixed pressing plate 2, and the first groove 9 and the second groove 10 are distributed in a V shape; the fixed pressing plate 2 is connected with the fixed frame 1 through a spring bolt.
During the in-service use, first recess 9 and second recess 10 are the V-arrangement and lay for first sheath and second sheath can be better fix in first recess 9 and second recess 10, make the fixed effect of optical cable optic fibre that awaits measuring better, the accuracy nature of test is higher. The fixed pressing plate 2 is connected with the fixed frame 1 through a spring bolt, so that the fixed pressing plate 2 can better compress the first sheath and the second sheath.
Example four:
the device for testing the optical fiber pulling force of the optical cable shown in fig. 1 is different from the second embodiment in that: the fixed pressing plate 2 is divided into an inner plate and an outer plate; one end of the inner plate and one end of the outer plate are fixed at the same point on the fixing frame 1, the inner plate extends to the bottom in the first groove 9 or the second groove 10, the width of the inner plate is matched with the inner diameter of the first groove 9 and the inner diameter of the second groove 10 on the fixing frame 1, and the width of the outer plate is larger than the inner diameter of the first groove 9 and the inner diameter of the second groove 10 on the fixing frame 1.
When in actual use, the optical cable to be tested adopts the fixed pressing plate 2 with the inner plate and the outer plate, so that the fixed effect of the fixed pressing plate 2 is better.
Example five:
the device for testing the optical fiber pulling force of the optical cable shown in fig. 1 is different from the second embodiment in that: the outer sheath body fixing part comprises a third groove 11 formed in the upper surface of the fixing frame 1, two sides of the third groove 11 are respectively rotatably connected with a tabletting device 3, and the tabletting devices 3 are connected with the fixing frame 1 through rotating shafts fixed on the fixing frame 1.
When in actual use, the tabletting device 3 is rotationally connected with the fixing frame 1 through the rotating shaft fixed on the fixing frame 1, so that the compressing operation is simple and convenient. The third groove 11 prevents the optical fiber of the optical cable to be tested from shaking, and the accuracy of the test result is ensured.
Example six:
the device for testing the optical fiber pulling force of the optical cable shown in fig. 1 is different from the first embodiment in that: the tension device is fixedly connected with a clamping piece 7 with an optical cable and optical fiber access end, the clamping piece 7 is composed of two stainless steel discs with different outer diameters, and rubber cushion layers are covered on the opposite surfaces of the two discs with different outer diameters; the outer diameter of the small disc is 10-20 mm, and the outer diameter of the large disc is 15-25 mm.
When in actual use, the clamping piece 7 is arranged, so that the clamping piece 7 has a good clamping effect, and the optical fiber cable to be tested cannot be damaged.
Example seven:
the device for testing the optical fiber pulling force of the optical cable shown in fig. 1 is different from the first embodiment in that: a graduated scale 4 is arranged on one side of the outer sheath body part fixing piece along the axial direction; the tension device is a tension machine or a digital display spring scale.
In actual use, the graduated scale 4 is axially arranged on one side of the third groove 11, so that the length change condition of the butterfly-shaped lead-in optical cable to be tested in the test can be accurately acquired; the graduated scale 4 with the length of 50-100 cm and the minimum scale value of 0.1cm is adopted, the test requirement can be met, and the cost is saved to a certain extent. The length of the graduated scale 4 is 50-100 cm, and the minimum scale value is 0.1 cm. The tension device is a tension machine or a digital display spring scale, so that the requirement on the test precision can be well met, the setting expenditure can be saved, and the cost is saved. In practical use, the minimum force value precision of the tension device is 0.01N, so that the testing precision meets the requirement, and the cost of adopting a precision instrument is saved.
Example eight:
the testing method for testing the optical fiber drawing force device of the optical cable shown in fig. 1-5 is different from the first embodiment in that: comprises the following steps
The method comprises the following steps: intercepting optical cable to be tested
Cutting a section of optical cable to be tested, wherein the length of the cut is 500-600 mm;
step two: preprocessing optical cable to be tested
Stripping one end of the optical cable to be measured intercepted in the step one by using a wire stripper for 200-300 mm, and manually tearing the other end of the optical cable for 50-100 mm, wherein the torn part is a first sheath and a second sheath;
step three: fixing optical cable to be tested
Respectively placing the first sheath and the second sheath in the optical cable to be tested processed in the step two into a first groove 9 and a second groove 10 on the fixing frame 1, respectively pressing the first sheath and the second sheath by the fixing pressing plate 2 on one side of the first groove 9 and one side of the second groove 10, and screwing down the spring bolt on the fixing pressing plate 2; putting the remaining optical cable to be tested into the third groove 11 and pressing the optical cable by the tabletting device 3;
step four: connecting tension device
After the third step, connecting the optical fiber separated by the wire stripper in the second step to a clamping piece 7 on a tension device through a guide wheel 5, and clamping the optical fiber to be tested by the clamping piece 7;
step five: force application test
The tension device is used for carrying out a force application tension test at a tension rate of 10-20 mm/min;
step six: recording the test results
Recording the magnitude of the force application and the condition of the optical cable to be tested;
step seven: retesting
And when the optical fiber of the optical cable to be tested is not drawn, the test result is invalid, and the first step is returned to for testing again.
In actual use, cutting a section of optical cable to be detected, wherein the cutting length is 500-600 mm; stripping one end of the cut optical cable to be tested by using a wire stripper for 200-300 mm, and tearing the other end of the optical cable by using a hand for 50-100 mm, wherein the torn part is a first sheath and a second sheath; respectively placing a first sheath and a second sheath in the processed optical cable to be tested into a first groove 9 and a second groove 10 on a fixing frame 1, respectively pressing a fixed pressing plate 2 on one side of the first groove 9 and one side of the second groove 10 against the first sheath and the second sheath, and screwing a spring bolt on the fixed pressing plate 2; putting the remaining optical cable to be tested into the third groove 11 and pressing the optical cable by the tabletting device 3; the optical fiber separated by the wire stripper passes through the guide wheel 5 to be connected to a clamping piece 7 on the tension device, and the clamping piece 7 clamps the optical fiber to be tested; performing a force application tensile test by using a tensile device at a tensile rate of 10-20 mm/min; recording the magnitude of the force application and the condition of the butterfly-shaped lead-in optical cable to be tested; and during testing, when the optical fiber of the optical cable is not drawn, the test result is invalid, and the step I is returned to carry out the testing again.
The optical cable to be tested is fixed on the device frame through seven steps of intercepting the optical cable to be tested, preprocessing the optical cable to be tested, fixing the optical cable to be tested, connecting the tension device, applying force for testing, recording a test result and retesting, the drawing force of the optical fiber of the optical cable can be accurately given by matching with the tension machine, the requirement of a customer on the drawing force is met, the drawing force of the optical fiber in the optical cable of the drawing force is accurately controlled, and the test result can provide a powerful data support for quality control of the optical cable.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
It should be noted that the descriptions relating to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Technical solutions between various embodiments may be combined with each other, but must be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Claims (8)
1. The utility model provides a test butterfly-shaped optical cable optic fibre pulling force device includes mount (1) at least, its characterized in that still includes:
oversheath mounting, wherein the oversheath mounting divide into:
an outer sheath separating part fixing piece for fixing the outer sheath of the separating part on the fixing frame (1),
the outer sheath body part fixing piece is used for fixing the outer sheath of the non-separated part on the fixing frame (1);
the optical cable optical fiber access end of the tension device is coaxial with the optical cable optical fiber fixed by the outer sheath body part fixing part;
the outer sheath separating part fixing piece comprises a first groove (9) formed in the upper surface of the fixing frame (1), and a first fixing pressing plate is detachably connected to the first groove (9);
the outer sheath separating part fixing piece further comprises a second groove (10) formed in the upper surface of the fixing frame (1), a second fixing pressing plate is detachably connected to the second groove (10), and the first groove (9) and the second groove (10) are distributed in a V shape; the first fixed pressing plate and the second fixed pressing plate are connected with the fixed frame (1) through spring bolts.
2. The device for testing the optical fiber pulling force of the butterfly-shaped optical cable according to claim 1, wherein: and a guide wheel (5) is further arranged between the optical cable fiber access end of the tension device and the fixing part of the outer sheath body part, and the axis of the guide wheel (5) is coaxial with the optical cable fiber access end of the tension device.
3. The device for testing the optical fiber pulling force of the butterfly-shaped optical cable according to claim 1, wherein: the first fixed pressing plate and the second fixed pressing plate are divided into an inner plate and an outer plate; one end of the inner plate and one end of the outer plate are fixed at the same point on the fixing frame (1), the inner plate extends to the inner bottom of the first groove (9) or the second groove (10), the width of the inner plate is matched with the inner diameter of the first groove (9) and the inner diameter of the second groove (10) on the fixing frame (1), and the width of the outer plate is larger than the inner diameter of the first groove (9) and the inner diameter of the second groove (10) on the fixing frame (1).
4. The device for testing the optical fiber pulling force of the butterfly-shaped optical cable according to claim 1, wherein: the outer sheath body fixing part comprises a third groove (11) formed in the upper surface of the fixing frame (1), two sides of the third groove (11) are respectively rotatably connected with a pressing device (3), and the pressing devices (3) are connected with the fixing frame (1) through rotating shafts fixed on the fixing frame (1).
5. The device for testing the optical fiber pulling force of the butterfly-shaped optical cable according to claim 1, wherein: a clamping piece (7) is fixedly connected to the tension device and the optical cable optical fiber access end, the clamping piece (7) is composed of two stainless steel discs with different outer diameters, and rubber cushion layers are covered on the opposite surfaces of the two discs with different outer diameters; the outer diameter of the small disc is 10-20 mm, and the outer diameter of the large disc is 15-25 mm.
6. The device for testing the optical fiber pulling force of the butterfly-shaped optical cable according to claim 1, wherein: a graduated scale (4) is arranged on one side of the outer sheath body fixing part along the axial direction; the tension device is a tension machine or a digital display spring scale.
7. Use of the device for testing the pulling force of an optical fiber of a butterfly-shaped optical cable according to any one of claims 1 to 6 for testing an optical fiber of a butterfly-shaped optical cable.
8. The method for testing the device for testing the optical fiber pulling force of the butterfly-shaped optical cable according to any one of claims 1 to 6, wherein: comprises the following steps
The method comprises the following steps: intercepting optical cable to be tested
Cutting a section of optical cable to be tested, wherein the length of the cut is 500-600 mm;
step two: preprocessing optical cable to be tested
Stripping one end of the optical cable to be measured intercepted in the step one by using a wire stripper for 200-300 mm, and manually tearing the other end of the optical cable for 50-100 mm, wherein the torn part is a first sheath and a second sheath;
step three: fixing optical cable to be tested
Respectively placing the first sheath and the second sheath in the optical cable to be tested processed in the second step into a first groove (9) and a second groove (10) on the fixing frame (1), respectively pressing the first sheath and the second sheath by a first fixing pressing plate and a second fixing pressing plate on one side of the first groove (9) and one side of the second groove (10), and screwing spring bolts on the first fixing pressing plate and the second fixing pressing plate; putting the remaining optical cable to be tested into the third groove (11) and pressing the optical cable by using the pressing device (3);
step four: connecting tension device
After the third step, connecting the optical fiber separated by the wire stripper in the second step to a clamping piece (7) on a tension device through a guide wheel (5), and clamping the optical fiber to be tested by the clamping piece (7);
step five: force application test
The tension device is used for carrying out a force application tension test at a tension rate of 10-20 mm/min;
step six: recording the test results
Recording the magnitude of the force application and the condition of the optical cable to be tested;
step seven: retesting
And when the optical fiber of the optical cable to be tested is not drawn, the test result is invalid, and the first step is returned to for testing again.
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| US5181424A (en) * | 1991-04-18 | 1993-01-26 | International Paper Company | Tear-strip testing apparatus |
| CN202648848U (en) * | 2012-05-04 | 2013-01-02 | 昆山沪光汽车电器有限公司 | Tensile force detecting device |
| CN203849156U (en) * | 2014-05-08 | 2014-09-24 | 广东华声电器股份有限公司 | Electrical wire stripping force testing jig |
| CN104007064B (en) * | 2014-06-04 | 2017-03-15 | 东莞市瀛通电线有限公司 | A kind of wire rod attachment force detection method and the equipment of enforcement the method |
| CN104502186A (en) * | 2014-12-19 | 2015-04-08 | 深圳职业技术学院 | Electric-control drawing force detector |
| CN207379648U (en) * | 2017-06-12 | 2018-05-18 | 苏州宝兴电线电缆有限公司 | A kind of device for testing tensile force |
| CN107314972B (en) * | 2017-06-15 | 2019-09-27 | 烽火通信科技股份有限公司 | A kind of test device and test method of butterfly optical cable optical fiber elasticity |
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