CN106197487B - A kind of sensor and preparation method thereof of miter gate's crackle on-line detecting system - Google Patents
A kind of sensor and preparation method thereof of miter gate's crackle on-line detecting system Download PDFInfo
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- CN106197487B CN106197487B CN201610579892.4A CN201610579892A CN106197487B CN 106197487 B CN106197487 B CN 106197487B CN 201610579892 A CN201610579892 A CN 201610579892A CN 106197487 B CN106197487 B CN 106197487B
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- optical fiber
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- protective box
- fiber
- reel
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- 208000037656 Respiratory Sounds Diseases 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title abstract description 4
- 239000013307 optical fiber Substances 0.000 claims abstract description 60
- 230000001681 protective effect Effects 0.000 claims abstract description 55
- 239000000835 fiber Substances 0.000 claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 238000000253 optical time-domain reflectometry Methods 0.000 claims abstract 3
- 238000004804 winding Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/268—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light using optical fibres
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The invention discloses a kind of sensor and preparation method thereof of miter gate's crackle on-line detecting system, the sensor includes two rigid protective boxes and optical fiber, and the optical fiber has a plurality of, is laid between two rigid protective boxes；The rigid protective box is circle, and the big fiber reel of circle of the round small fiber reel and a centrally located a diameter of n of internal fixed multiple a diameter of m for being distributed in surrounding, big fiber reel is for being auxiliarily fixed optical fiber.The present invention can realize the crack detection to a panel region using multiple sensors and an OTDR module, the number of channels of OTDR modules be considerably reduced, to reduce the complexity and cost that entire detecting system is built.The sensor that the present invention designs is effectively utilized fiber resource so that can realize the multiple spot detection to crackle by an optical fiber, compare not only efficient quick with the detection method of conventional laying optical fiber, but also also save the occupancy to space.
Description
Technical field
The present invention relates to Hydraulic Metal health detection technical field, more particularly to a kind of miter gate's crackle on-line checking
The sensor production method of system.
Background technology
The structural robustness of Miter Lock Gates is always faced with test in the work course, and wherein miter gate both sides are huge
Hydraulic pressure force difference, in miter gate's opening-closing process flow extruding to structural damage and the deformation of door body the problems such as under long term
The area of stress concentration of door body can be made cracked, and influence the operation reliably and with long-term of ship lock.
The method of traditional detection crackle be using optical time domain reflectometer (OTDR) by an optical fiber with it is expected that crackle at one
Determine angle laying, the cabling of optical fiber is directly fixed in detected material surface, belongs to single-point detection, and one root optical fiber can only detect one
A crackle, when being detected to wide range, the shortcomings of wasting fiber resource there are occupied space, and splitting on miter gate
Line is easily sent out region and is more disperseed, and builds system in this way and needs the additional number of channels for increasing OTDR modules, greatly increases
The complexity and cost of system building are added, and difficulty are brought to follow-up signal processing.
Invention content
To solve the above problem of the existing technology, the present invention, which will design one kind and can save fiber resource and reduce, is
The sensor and preparation method thereof of the miter gate's crackle on-line detecting system for the complexity and cost built of uniting.
To achieve the goals above, technical scheme is as follows：A kind of biography of miter gate's crackle on-line detecting system
Sensor, including two rigid protective boxes and optical fiber, the optical fiber have a plurality of, are laid between two rigid protective boxes；It is described
Rigid protective box be round and a diameter of d, side is provided with multiple windows, internal fixed multiple to be distributed in a diameter of of surrounding
The big fiber reel of circle of the round small fiber reel and a centrally located a diameter of n of m, big fiber reel is for being auxiliarily fixed light
It is fine；
The diameter d of the rigid protective box and small optical fiber disk diameter m, big fiber reel diameter n meet following formula：
D=n+2m+a, wherein a are constant, and value is 6~8cm；
Two rigid protective box structure snd size are identical, respectively rigid protective box A and rigid protective box
B。
Further, two rigid protective boxes and optical fiber are each attached on the surface of miter gate.
A kind of production method of the sensor of miter gate's crackle on-line detecting system, includes the following steps：
A, in miter gate's crack detection region both sides, rigid protective box A and rigid protective box B is fixed respectively, optical fiber is drawn
Enter in rigid protective box A, and several circles and fixation are wound on the big fiber reel of rigid protective box A；
B, optical fiber is introduced on a small fiber reel of rigid protective box A and winds i circles, wherein the value of i meets following public affairs
Formula：
Wherein, p is the size of the Event Dead Zone of the OTDR modules demodulated, and m is the diameter of small fiber reel；
Then optical fiber is routed on crack detection region, and optical fiber is auxiliarily fixed in installation cylindrical base temporarily, then will
Optical fiber is introduced into rigid protective box B；With crackle direction occurs for trend of the optical fiber in crack detection region at 60~70 degree of angle obliques；
C, first winding i is enclosed on the small fiber reel in rigid protective box B, the big light being then introduced into rigid protective box B
Several circles and fixation are wound on fine disk, using i circles are wound on another small fiber reel in rigid protective box B, finally by light
Fibre is routed on crack detection region, and optical fiber is auxiliarily fixed in installation cylindrical base temporarily, and optical fiber is reintroduced back to again later
In rigid protective box A；Trend of the optical fiber in crack detection region is parallel with previous optical fiber；
D, it is laid according to crack detection region and requires to repeat step B~C several times, and optical fiber is drawn into rigid protective box A.
Compared with prior art, the beneficial effects of the invention are as follows：
1, the present invention utilizes multiple optical fiber crack sensors and an OTDR module compared to traditional crack detecting method
It can realize the crack detection to a panel region, considerably reduce the number of channels of OTDR modules, it is entire to reduce
The complexity and cost that detecting system is built.
2, the optical fiber crack sensor that the present invention designs is effectively utilized fiber resource so that passes through an optical fiber
It realizes and the multiple spot of crackle is detected, not only efficient quick is compared with the detection method of conventional laying optical fiber, but also also save pair
The occupancy in space.
Description of the drawings
The present invention shares 1 width of attached drawing, wherein：
Fig. 1 is the internal structure schematic diagram of optical fiber crack detection sensor.
In figure：1, rigid protective box A, 2, rigid protective box B, 3, big fiber reel A, 4, big fiber reel B, 5, small fiber reel A,
6, small fiber reel B, 7, small fiber reel C, 8, small fiber reel D, 9, cylindrical base A, 10, cylindrical base B, 11, cylindrical bottom
Seat C, 12, cylindrical base D, 13, optic fibre input end, 14, fiber-optic output.
Specific implementation mode
Below with reference to attached drawing, the preferred embodiment of the present invention is described in detail：It should be appreciated that preferred embodiment
Only for illustrating the present invention, the protection domain being not intended to be limiting of the invention.
The technical solution adopted by the present invention is that：Inside rigid protective box by positioned at the center of circle big fiber reel and positioned at circumference it is attached
Close small fiber reel composition, and side is provided with multiple windows, and big fiber reel plays preliminary fixed function, small fiber reel is used for winding
And optical fiber is drawn, a rigid protective box is fixed respectively in crack detection region both sides, and uses following methods with special angle
Laying optical fiber.
As shown in Figure 1, the sensor of miter gate's crackle on-line detecting system includes the circle that two sides are provided with multiple windows
Shape rigid protective box A1, rigid protective box B2 and optical fiber secure multiple be distributed in the minimum of surrounding inside rigid protective box
The big fiber reel that the small fiber reel and a centrally located minimum diameter that diameter is 3cm are 6cm, big fiber reel is for being auxiliarily fixed
The diameter d of optical fiber, rigid protective box is calculated by formula d=n+2m+a, and a is selected as 8cm here, can obtain d=20cm.
The sensor production method of miter gate's crackle on-line detecting system, step are：
A, in crack detection region both sides, rigid protective box A1, rigid protective box B2 are fixed respectively, optical fiber is defeated from optical fiber
Enter end 13 to be introduced into rigid protective box A1 and wind several circles and fixation on big fiber reel A3；
B, optical fiber is introduced on small fiber reel A5 and winds i circles, wherein i is calculated with following formula：
Wherein, p is selected as 6m according to actual conditions, and m is selected as 3cm, is computed to obtain i=63；Then optical fiber is routed to
On crack detection region, and optical fiber is auxiliarily fixed in installation cylindrical base A9 and cylindrical base B10 temporarily, then optical fiber is introduced
In rigid protective box B2；
C, first winding 63 is enclosed on small fiber reel C7, then is moved to and wound several circles and fixation on big fiber reel B4, using
63 circle of winding on small fiber reel D8, after optical fiber is routed on crack detection region, and cylindrical base C11 and circle are installed temporarily
Optical fiber is auxiliarily fixed in cylindrical base D12, and optical fiber is introduced into rigid protective box A1；63 circle of winding on small fiber reel B6, then draw
Several circles and fixation are wound on to big fiber reel A3；
D, it is laid according to detection zone and requires to repeat B~step C several times, and optical fiber is drawn just from fiber-optic output 14
Property protecting box A1.
In addition, the optical fiber between rigid protective box A1 and rigid protective box B2 is in crack detection region and crackle generation side
It is fixed at 60~70 degree of angle obliques.
The present invention is not limited to the present embodiment, any equivalent concepts in the technical scope of present disclosure or changes
Become, is classified as protection scope of the present invention.
Claims (1)
1. a kind of production method of the sensor of miter gate's crackle on-line detecting system, the sensor includes that two rigidity are protected
Protect box and optical fiber, the optical fiber has a plurality of, is laid between two rigid protective boxes；The rigid protective box be it is round and
A diameter of d, side are provided with multiple windows, the small fiber reel of circle of internal fixed multiple a diameter of m for being distributed in surrounding and position
In the big fiber reel of circle of an a diameter of n at center, big fiber reel is for being auxiliarily fixed optical fiber；
The diameter d of the rigid protective box and small optical fiber disk diameter m, big fiber reel diameter n meet following formula：
D=n+2m+a, wherein a are constant, and value is 6~8cm；
Two rigid protective box structure snd size are identical, respectively rigid protective box A (1) and rigid protective box B
(2)；
Two rigid protective boxes and optical fiber are each attached on the surface of miter gate；
It is characterized in that：The production method of the sensor includes the following steps：
A, in miter gate's crack detection region both sides, rigid protective box A (1) and rigid protective box B (2) is fixed respectively, by optical fiber
It is introduced into rigid protective box A (1), and several circles and fixation is wound on the big fiber reel of rigid protective box A (1)；
B, optical fiber is introduced on a small fiber reel of rigid protective box A (1) and winds i circles, wherein the value of i meets following public affairs
Formula：
Wherein, p is the size of the Event Dead Zone of the OTDR modules demodulated, and m is the diameter of small fiber reel；
Then optical fiber is routed on crack detection region, and installation cylindrical base is auxiliarily fixed optical fiber temporarily, then by optical fiber
It is introduced into rigid protective box B (2)；With crackle direction occurs for trend of the optical fiber in crack detection region at 60~70 degree of angle obliques；
C, first winding i is enclosed on the small fiber reel in rigid protective box B (2), is then introduced into big in rigid protective box B (2)
Several circles and fixation are wound on fiber reel, using i circles are wound on another small fiber reel in rigid protective box B (2), finally
Optical fiber is routed on crack detection region, and temporarily installation cylindrical base optical fiber is auxiliarily fixed, later again optical fiber again
It is introduced into rigid protective box A (1)；Trend of the optical fiber in crack detection region is parallel with previous optical fiber；
D, it is laid according to crack detection region and requires to repeat step B~C several times, and optical fiber is drawn into rigid protective box A (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610579892.4A CN106197487B (en) | 2016-07-21 | 2016-07-21 | A kind of sensor and preparation method thereof of miter gate's crackle on-line detecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610579892.4A CN106197487B (en) | 2016-07-21 | 2016-07-21 | A kind of sensor and preparation method thereof of miter gate's crackle on-line detecting system |
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| Publication Number | Publication Date |
|---|---|
| CN106197487A CN106197487A (en) | 2016-12-07 |
| CN106197487B true CN106197487B (en) | 2018-10-02 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201885707U (en) * | 2010-11-30 | 2011-06-29 | 上海光子光电传感设备有限公司 | Star-like sensing unit in health monitoring system of distributed optical fiber structure |
| CN202693879U (en) * | 2012-07-11 | 2013-01-23 | 中国船舶重工集团公司第七一五研究所 | Distribution type stress and temperature monitoring optical cable buried inside object |
| CN103063291A (en) * | 2012-12-28 | 2013-04-24 | 武汉光谷奥源科技有限公司 | Optical fiber micro-vibration sensor |
| CN103217109A (en) * | 2013-04-09 | 2013-07-24 | 河海大学 | Crack monitoring sensor and use method thereof based on OTDR (optical time domain reflectometry) technique |
| CN203572503U (en) * | 2013-10-18 | 2014-04-30 | 曾胜 | Optical-fiber optical-grating element installation device of side slope stability monitoring system |
| CN204331103U (en) * | 2014-11-27 | 2015-05-13 | 国家电网公司 | Optical fiber fiber management tray |
| CN104977031A (en) * | 2015-07-14 | 2015-10-14 | 中国电子科技集团公司第八研究所 | Fiber grating sensor packaging structure and packaging method |
-
2016
- 2016-07-21 CN CN201610579892.4A patent/CN106197487B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201885707U (en) * | 2010-11-30 | 2011-06-29 | 上海光子光电传感设备有限公司 | Star-like sensing unit in health monitoring system of distributed optical fiber structure |
| CN202693879U (en) * | 2012-07-11 | 2013-01-23 | 中国船舶重工集团公司第七一五研究所 | Distribution type stress and temperature monitoring optical cable buried inside object |
| CN103063291A (en) * | 2012-12-28 | 2013-04-24 | 武汉光谷奥源科技有限公司 | Optical fiber micro-vibration sensor |
| CN103217109A (en) * | 2013-04-09 | 2013-07-24 | 河海大学 | Crack monitoring sensor and use method thereof based on OTDR (optical time domain reflectometry) technique |
| CN203572503U (en) * | 2013-10-18 | 2014-04-30 | 曾胜 | Optical-fiber optical-grating element installation device of side slope stability monitoring system |
| CN204331103U (en) * | 2014-11-27 | 2015-05-13 | 国家电网公司 | Optical fiber fiber management tray |
| CN104977031A (en) * | 2015-07-14 | 2015-10-14 | 中国电子科技集团公司第八研究所 | Fiber grating sensor packaging structure and packaging method |
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| CN106197487A (en) | 2016-12-07 |
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