CN108548503A - A kind of optical fiber loose tube bending radius measuring device - Google Patents
A kind of optical fiber loose tube bending radius measuring device Download PDFInfo
- Publication number
- CN108548503A CN108548503A CN201810548827.4A CN201810548827A CN108548503A CN 108548503 A CN108548503 A CN 108548503A CN 201810548827 A CN201810548827 A CN 201810548827A CN 108548503 A CN108548503 A CN 108548503A
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- China
- Prior art keywords
- loose tube
- casing
- bending radius
- optical fiber
- measuring device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/255—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring radius of curvature
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of optical fiber loose tube bending radius measuring devices.It include fixing bracket, support bracket fastened one end is provided with casing fixer foot, and the other side of casing fixer foot is provided with casing movement card base, is installed on translation slide along longitudinal direction on fixing bracket, translation slide is connected with casing movement card base, and is connected with screw rod driving device.The present invention can uniformly be bent Loose tube, and realize the bending of Loose tube under even speed, accurate and visual can find the moment that casing is bent, and realize the accurate static minimum bending radius under dynamic of measurement Loose tube；Structure of the invention setting is reasonable, and use is easy to operate, adopts to computerized control and further improves the handling of the present invention；It can be suitable for different sizes, the measurement of the Loose tube bending radius of different materials, performance is flexible；The present invention can carry out quantitatively characterizing to Loose tube warping resistance performance, have more intuitive directive function to optical cable construction.
Description
Technical field
The present invention relates to a kind of optical fiber loose tube bending radius measuring devices, belong to photoelectricity transmission technical field.
Background technology
Warping resistance performance is an important indicator of optical fiber loose tube, is had a major impact to construction efficiency.Such as connect in optical fiber
When continuous disk stays, Loose tube minimum bending radius is excessive, direct disk can not stay, be needed casing stripping in small size connector box
Disk is carried out again after taking-up optical fiber increase protection hose to stay, construction efficiency significantly reduces.Therefore, need to Loose tube warping resistance performance into
Row characterization.Fiber optic testing standard GB/T 7274.2-2008《Optical cable generic specification part 2 optical cable fundamental test method》Regulation
The test method of Loose tube warping resistance performance：Loose tube bends to a certain size circular ring shape, Loose tube along guide groove with
Certain speed movement specific length makes annular radii change, but each section bending radius uneven one after annulus variation
It causes, can not directly determine minimum bending radius, so generally whether to be bent after mobile specific length by Loose tube
To evaluate its warping resistance performance.
With the development of optical fiber cable technology, the continuous improvement of optical fiber buckle resistance energy can propose Loose tube buckle resistance
Requirements at the higher level.Warping resistance performance is evaluated using the method in standard, there are Railway Projects：1）Be only applicable to bending radius compared with
Big traditional poly terephthalic acid fourth dimethyl ester Loose tube is not suitable for measuring the excellent flexible Loose tube of bending property.2）It should
Method can only measure whether Loose tube under certain condition bends, and can not directly measure the minimum bend half of Loose tube
Diameter can not directly instruct control of the customer when mounted to Loose tube bending radius.3）It is unable to judge accurately Loose tube
The time point of bending.
Invention content
Technical problem to be solved by the present invention lies in propose a kind of optical fiber pine in view of the deficiency of the prior art
Casing bending radius measuring device, it is not only measured accurately, but also structure setting is reasonable, and use is easy to operate.
The invention is realized by the following technical scheme：Include fixing bracket, it is solid that support bracket fastened one end is provided with casing
Determine card base, the other side of casing fixer foot is provided with casing movement card base, is installed on along longitudinal direction on fixing bracket
Slide is translated, translation slide is connected with casing movement card base, and is connected with screw rod driving device.
By said program, the casing fixer foot is respectively set nested recessed with the corresponding inside of casing movement card base
Slot.
By said program, the nested groove is adjustable nested groove, to the casing of nested different-diameter.
By said program, the adjustable nested groove includes the sliding block of groove and setting in a groove, the sliding block
Along the transverse shifting of groove, screw hole, screw hole and the adjusting screw rod phase configuration for being installed in the groove other side is arranged in sliding block rear end, constitutes
Adjustable nesting groove.
By said program, longitudinal slide rail, translation slide and longitudinal slide rail phase configuration are installed on the fixing bracket.
By said program, the screw rod driving device is electronic screw rod driving device, including is installed on fixing bracket
Lead screw, one end of lead screw is connected with the motor with speed changer, the screw hole phase configuration of the screw thread and translation slide of lead screw.
By said program, it is provided with displacement sensor on the longitudinal rail, is installed on the casing fixer foot
Force sensor.
By said program, configured with computer, the output end of displacement sensor and force snesor connects with computer, described
The control terminal of the motor with speed changer be connected with computer.
The use process of measuring device of the present invention is：It is positioned over casing fixer after the Loose tube for being coated with optical fiber is bent
Between foot and casing movement card base, Loose tube is set to enter nested groove, Loose tube interlude can be formed uniformly due to pressure at both sides
Semicircular ring, the radius of semicircular ring is Loose tube bending radius, and casing inner fiber can be connected with ODTR test equipments.Pass through silk
Rod driving device driving translation slide drives casing to move card base and is translated to casing fixer foot so that Loose tube bending radius is not
Disconnected to become smaller, the power between the Loose tube that force snesor detects and casing fixer foot can constantly increase, when Loose tube casing is sent out
The moment of raw bending, force value have downward mutation, and Computer signal sends out brake signal to motor at this time, and motor stops turning
Dynamic, the bending radius of Loose tube is the dynamic minimum bending radius of Loose tube at this time.It is also possible to be set by controlling motor
The displacement for determining sliding block, the motor stalls after reaching the displacement keep Loose tube certain under the conditions of the bending radius
Time judges whether Loose tube bends, it is possible thereby to detect Loose tube by the way that whether the force value of measurement mutates
Static buckling radius.The spacing of casing movement card base and casing fixer foot is subtracted into Loose tube diameter again divided by 2 can calculate
Bending radius value.
The beneficial effects of the present invention are：1, Loose tube can be uniformly bent, and realizes Loose tube under even speed
Bending, accurate and visual can find the moment that casing is bent, realize accurate measure under Loose tube is static and dynamic most
Small-bend radius；2, different sizes, the measurement of the Loose tube bending radius of different materials can be suitable for, performance is flexible；3、
Structure setting is reasonable, and use is easy to operate, adopt computerized control further improve the present invention handling；4, of the invention
Quantitatively characterizing can be carried out to Loose tube warping resistance performance, there is more intuitive directive function to optical cable construction.
Description of the drawings
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
Fig. 2 is the adjustable nested groove cross section of one embodiment of the invention middle sleeve movement card base and casing fixer foot
Sectional view.
Specific implementation mode
Below in conjunction with drawings and examples, the present invention is further illustrated.
Include fixing bracket 3, is provided with casing fixer foot 8 below support bracket fastened one end, anti-peace on fixing bracket
Equipped with longitudinal slide rail, the other side of casing fixer foot is provided with casing movement card base 6, on fixing bracket along longitudinal direction
It is installed on translation slide 5, slide longitudinal rail phase configuration is translated, is connected with casing movement card base below translation slide；Described
Nested groove is respectively set with the corresponding inside of casing movement card base in casing fixer foot, and the nested groove is adjustable embedding
Groove is covered, to the casing of nested different-diameter, the adjustable nested groove includes the sliding block of groove and setting in a groove
12, the sliding block along groove transverse shifting, to adjust the width of groove, to adapt to the Loose tube of different-diameter, sliding block
Screw hole, screw hole and 13 phase configuration of adjusting screw rod for being installed in the groove other side is arranged in rear end, constitutes adjustable nested groove.Described
Translation slide is connected with screw rod driving device, and the screw rod driving device is electronic screw rod driving device, including is installed in
Lead screw 4 on fixing bracket, one end of lead screw are connected with the motor 1 with speed changer 2, the screw hole of the screw thread and translation slide of lead screw
Phase configuration.Open motor driving lead screw rotation, you can drive translation slide to move back and forth, realize that casing movement card base and casing are solid
Determine the variation of spacing between card base.It is provided with displacement sensor on the longitudinal rail, to measure mobile card base and fixation
Spacing between card base can also inscribe high scale value on longitudinal rail, can intuitive above-mentioned two card base spacing.In the casing
Force sensor 10 is installed on fixed card base, to detect the folding force of Loose tube 9.The present apparatus is configured with computer, described
The output end of displacement sensor and force snesor connects with 11 input port of computer, the control of the motor with speed changer
End is connected with computer control port.
One embodiment that the present invention uses is as follows：9 sample of Loose tube more than 50mm length is taken, certain temperature is positioned over
Under the conditions of balance after a certain period of time, then Loose tube 9 is bent and is put between fixed card base and mobile card base, Loose tube includes
Optical fiber 7 can connect OTDR test equipments, set the movement speed of mobile card base, and computer 11 passes to motor 1 by signal is controlled,
Motor rotation drives mobile card base at the uniform velocity to move, and computer starts simultaneously at the force value signal of acquisition force snesor, when force value occurs
When mutation, show that Loose tube is bent at this time, computer sends out motor braking signal at this time, and displacement sensor can detect that
For the dynamic minimum bending radius of Loose tube 9.The control signal of motor and the acquisition signal of force snesor access computer, lead to
It realizes that Loose tube bending radius calculates and draws bending radius and force value correspondence figure after crossing programming, while realizing force value control
The functions such as motor braking and mobile card base displacement.
Claims (8)
1. a kind of optical fiber loose tube bending radius measuring device, it is characterised in that include fixing bracket, support bracket fastened one end
It is provided with casing fixer foot, the other side of casing fixer foot is provided with casing movement card base, on fixing bracket
It is installed on translation slide along longitudinal direction, translation slide is connected with casing movement card base, and is connected with screw rod driving device.
2. optical fiber loose tube bending radius measuring device as described in claim 1, it is characterised in that the casing fixer
Nested groove is respectively set with the corresponding inside of casing movement card base in foot.
3. optical fiber loose tube bending radius measuring device as described in claim 2, it is characterised in that the nested groove is
Adjustable nesting groove, to the casing of nested different-diameter.
4. optical fiber loose tube bending radius measuring device as described in claim 3, it is characterised in that the adjustable nesting is recessed
Slot includes the sliding block of groove and setting in a groove, and for the sliding block along the transverse shifting of groove, screw hole, spiral shell is arranged in sliding block rear end
Hole and the adjusting screw rod phase configuration for being installed in the groove other side constitute adjustable nested groove.
5. optical fiber loose tube bending radius measuring device as described in claim 1 or 2, it is characterised in that the fixing bracket
On be installed on longitudinal slide rail, translation slide and longitudinal slide rail phase configuration.
6. optical fiber loose tube bending radius measuring device as described in claim 1 or 2, it is characterised in that the lead screw driving
Device is electronic screw rod driving device, including the lead screw being installed on fixing bracket, one end of lead screw and the motor with speed changer
It is connected, the screw hole phase configuration of the screw thread and translation slide of lead screw.
7. optical fiber loose tube bending radius measuring device as described in claim 5, it is characterised in that on the longitudinal rail
It is provided with displacement sensor, force sensor is installed on the casing fixer foot.
8. optical fiber loose tube bending radius measuring device as described in claim 1, it is characterised in that be configured with computer, displacement
The output end of sensor and force snesor connects with computer, control terminal and the computer phase of the motor with speed changer
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810548827.4A CN108548503A (en) | 2018-05-31 | 2018-05-31 | A kind of optical fiber loose tube bending radius measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810548827.4A CN108548503A (en) | 2018-05-31 | 2018-05-31 | A kind of optical fiber loose tube bending radius measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108548503A true CN108548503A (en) | 2018-09-18 |
Family
ID=63511594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810548827.4A Pending CN108548503A (en) | 2018-05-31 | 2018-05-31 | A kind of optical fiber loose tube bending radius measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108548503A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109839084A (en) * | 2019-01-25 | 2019-06-04 | 国家电网有限公司 | A kind of turning radius detection device of high voltage single-core cable, system and method |
| CN110986856A (en) * | 2019-11-21 | 2020-04-10 | 中国船舶重工集团公司第七0五研究所 | Hose bending radius test equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5548634A (en) * | 1978-10-03 | 1980-04-07 | Nippon Telegr & Teleph Corp <Ntt> | Optical fiber bend tester |
| JPH0989711A (en) * | 1995-09-22 | 1997-04-04 | Hamaguchi Keiki Kogyo Kk | Flexure inspection device for mechanical product |
| CN201561899U (en) * | 2009-09-15 | 2010-08-25 | 江苏大学 | Dried noodle bending fracture rate intelligent detecting device based on end axial displacement |
| CN105067451A (en) * | 2015-07-06 | 2015-11-18 | 山东省产品质量检验研究院 | Fire hose bending performance test apparatus |
| CN205157343U (en) * | 2015-12-11 | 2016-04-13 | 深圳普迈仕精密制造技术开发有限公司 | Fiber test machine |
-
2018
- 2018-05-31 CN CN201810548827.4A patent/CN108548503A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5548634A (en) * | 1978-10-03 | 1980-04-07 | Nippon Telegr & Teleph Corp <Ntt> | Optical fiber bend tester |
| JPH0989711A (en) * | 1995-09-22 | 1997-04-04 | Hamaguchi Keiki Kogyo Kk | Flexure inspection device for mechanical product |
| CN201561899U (en) * | 2009-09-15 | 2010-08-25 | 江苏大学 | Dried noodle bending fracture rate intelligent detecting device based on end axial displacement |
| CN105067451A (en) * | 2015-07-06 | 2015-11-18 | 山东省产品质量检验研究院 | Fire hose bending performance test apparatus |
| CN205157343U (en) * | 2015-12-11 | 2016-04-13 | 深圳普迈仕精密制造技术开发有限公司 | Fiber test machine |
Non-Patent Citations (1)
| Title |
|---|
| 古滨: "《材料力学实验指导与实验基本训练（第二版）》", 31 March 2016, 北京理工大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109839084A (en) * | 2019-01-25 | 2019-06-04 | 国家电网有限公司 | A kind of turning radius detection device of high voltage single-core cable, system and method |
| CN110986856A (en) * | 2019-11-21 | 2020-04-10 | 中国船舶重工集团公司第七0五研究所 | Hose bending radius test equipment |
| CN110986856B (en) * | 2019-11-21 | 2021-08-10 | 中国船舶重工集团公司第七0五研究所 | Hose bending radius test equipment |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180918 |