CN108982236A - A kind of quality inspection technique of quantum secret communication transmission fiber - Google Patents
A kind of quality inspection technique of quantum secret communication transmission fiber Download PDFInfo
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- CN108982236A CN108982236A CN201810785373.2A CN201810785373A CN108982236A CN 108982236 A CN108982236 A CN 108982236A CN 201810785373 A CN201810785373 A CN 201810785373A CN 108982236 A CN108982236 A CN 108982236A
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- 238000004891 communication Methods 0.000 title claims abstract description 40
- 239000000835 fiber Substances 0.000 title claims abstract description 33
- 230000005540 biological transmission Effects 0.000 title claims abstract description 30
- 238000007689 inspection Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000013307 optical fiber Substances 0.000 claims abstract description 100
- 238000001514 detection method Methods 0.000 claims abstract description 50
- 238000012360 testing method Methods 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 230000001427 coherent effect Effects 0.000 claims abstract description 4
- 238000010835 comparative analysis Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 111
- 238000003466 welding Methods 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000012372 quality testing Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/16—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces applied through gearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The invention belongs to optical fiber quality detection technique field, specifically a kind of quality inspection technique of quantum secret communication transmission fiber, the technique includes the following steps: to be sampled the optical fiber of production, selects sample to be detected；By relevant detection instrument to not detected by the optical fiber of any ambient pressure；Multi-angle pressurization is carried out to optical fiber by the multi-angle pressure test particular manufacturing craft to quantum secret communication transmission fiber, then optical fiber is detected by coherent detection tool accordingly；Detection data when comparative analysis optical fiber is not pressurized and when multi-angle is pressurized, judges whether the quality of optical fiber is qualified.The present invention can quickly detect whether optical fiber quality is qualified, while the data persuasion with higher detected, and the present invention is suitable for the quality testing of high performance optical fiber.
Description
Technical field
The invention belongs to optical fiber quality detection technique field, specifically a kind of matter of quantum secret communication transmission fiber
Inspection technique.
Background technique
The information transmission mode of today's society people has passed over cable and adds the twisted pair stage, and present people generally adopt
With optical fiber transmitting data information.The big transmission speed of optical-fibre communications transmission capacity is fast, thus is liked deeply by people, but with information skill
The development of art, requirement of the people to communication quality and communication security is higher and higher, and quantum communications also gradually appear in our view
In line, quantum-mechanical uncertainty principle and the unclonable principle of quantum make quantum communications have absolute safety, so that
The communication security of people is protected, and transmission, the quality and light of quantum communications are equally realized in quantum communications at present by optical fiber
Fine quality has very big relationship, when traditional quality inspection technique can not detect optical fiber in nature by different angle pressure,
Optical fiber property is by being influenced, it cannot be guaranteed that the optical fiber produced still can be used normally when pressure in by nature, this
As a problem for influencing quantum secret communication optical fiber production.
Summary of the invention
In order to make up for the deficiencies of the prior art, the quality inspection work of a kind of quantum secret communication transmission fiber proposed by the present invention
Skill, by optical fiber sampling Detection, determining optical fiber not by optical fiber transporting when ambient pressure and when optical fiber is by ambient pressure
The variation of energy, judges whether the quality of optical fiber is qualified with this, a kind of pair of quantum secret communication transmission fiber that the present invention uses
Multi-angle pressure test particular manufacturing craft cooperated by pressing plate, motor, pressure sensor, gear, connecting rod one and connecting rod two,
The optical fiber of measurement is allowed to afford the pressure of different angle, so that detection arc that is more comprehensive, while being arranged on pressing plate
Groove, so that the data of measurement are more accurate, improves the essence of quality inspection so that when being pressurized transverse shifting will not occur for optical fiber
True property, while the time that repeatedly measurement shortens measurement is avoided, the speed of quality inspection is accelerated, quality inspection efficiency is improved.
The technical solution adopted by the present invention to solve the technical problems is: a kind of quantum secret communication biography of the present invention
Fine quality inspection technique is lost, which includes the following steps:
Step 1: being sampled the optical fiber of production, selects sample to be detected；
Step 2: after selecting sample to be tested in step 1, by relevant detection instrument to not by any ambient pressure
Optical fiber detected；
Step 3: in step 2 to not detected by the optical fiber of any pressure after, by being transmitted to quantum secret communication
The multi-angle pressure test particular manufacturing craft of optical fiber carries out multi-angle pressurization to optical fiber, then accordingly by coherent detection tool to light
Fibre is detected；
Step 4: the detection after the completion of being detected in step 3, when comparative analysis optical fiber is not pressurized and when multi-angle is pressurized
Data judge whether the quality of optical fiber is qualified；
Wherein, to the multi-angle pressure test particular manufacturing craft of quantum secret communication transmission fiber, packet described in step 3
Include two pieces of pressing molds of arrangement symmetrical above and below；The pressing mold include telescopic rod, motor, gear, connecting rod one, connecting rod two, pressing plate and
Pressure sensor；The telescopic rod lower end is equipped with cavity；The motor is mounted on the lower end outer wall of telescopic rod；It is described
Gear be located in the cavity of telescopic rod, gear is mounted on the output shaft of motor；The connecting rod one is fixed on the lower-left of gear
Side；The connecting rod two is fixed on the lower right of gear；The pressing plate upper end is connected with connecting rod one with connecting rod two respectively, and pressing plate is used
In extruding optical fiber；The pressure sensor is located in pressing plate, and pressure sensor is used for the pressure that detection fiber is subject to, pressure sensing
Device is mounted in pressing plate, so that pressure sensor is more sensitive to the induction of pressure suffered by optical fiber, improves detection data
Accuracy.When work, optical fiber is placed between two pressing molds, telescopic rod drives motor, gear, connecting rod one, connecting rod two and pressure
Plate moves together, and pressing plate squeezes optical fiber, and the pressure sensor inside pressing plate detects pressure suffered when optical fiber is squeezed；It crosses
Cheng Zhong can drive connecting rod one to rotate together with connecting rod two by motor rotation, and pressing plate is under the action of connecting rod one and connecting rod two
Rotation, so that the angle that optical fiber is squeezed changes, whereby it can be detected that influence of the pressure to optical fiber of different angle,
So that detection is more comprehensive, detection data is with more persuasion property and practicability.
The pressing plate lower end surface is evenly arranged with the groove of arc, and arc groove is used to increase the friction between optical fiber and pressing plate
Power.When work, arc groove increases the frictional force between optical fiber and pressing plate, so that optical fiber will not occur when multi-angle squeezes
Transverse shifting reduces work so that detection data is more accurate, while avoiding and repeatedly detecting again because of optical fiber horizontal movement
It measures, has saved the time.
The connecting rod one, connecting rod two are fixedly connected by welding with gear, and the end of connecting rod one and connecting rod two is flat
Row is provided with several convex blocks, gear setting groove corresponding with the junction of connecting rod one, connecting rod two, and convex block is located at groove
Interior, convex block is used for so that welding stronger with groove.When work, the convex block of connecting rod one and connecting rod two is inserted into recessed on gear
In slot, then connecting rod one and connecting rod two are linked together by welding, welding is so that connecting rod one, connecting rod two and gear
It connects stronger, improves the service life of pressing mold, the setting of convex block and groove improves the anti-pressure ability of weld, makes
Obtaining junction can will not be broken under biggish pressure, improve the practicability of pressing mold, increase the applicable model of pressing mold
It encloses.
The connecting rod one, connecting rod two and gear junction are additionally provided with destressing cavity, and destressing cavity is for eliminating welding
The stress at place.When work, the presence of destressing cavity eliminates the stress of the junction of connecting rod one, connecting rod two and gear, improves
The toughness of weld, further improves the anti-pressure ability of weld, improves the service life of pressing mold.
Fastening spring is additionally provided on the pressing mold；The fastening spring left end is connected on connecting rod one, fastening spring right end
It is connected on connecting rod two, fastening spring left and right ends are symmetrically fixed, and fastening spring is bent from middle part, inflection point in the middle part of fastening spring
It is fixed on pressing plate upper end midpoint, fastening spring is for preventing pressing plate to be bent from middle.When work, fastening spring inflection point connects
The midpoint in pressing plate is connect, when pressing plate squeezes optical fiber, fastening spring makes the middle section of pressing plate will not be in the work of extruding force
It bends under, avoids the pressure sensor damage inside pressing plate, improve the service life of pressing mold, meanwhile, it avoids
The excessive data inaccuracy for leading to detection of pressure sensor deformation, to improve the accuracy of optical fiber pressure value detection, in turn
The persuasion for improving the data that detection obtains, improves the practicability of detection data.
It is equipped with hollow pipeline inside the fastening spring, air is filled in hollow pipe, hollow pipe is for adjusting
The rigidity of fastening spring；Be additionally provided with gas injection port on the fastening spring, gas injection port be used to inject into fastening spring air or
Air in fastening spring is released.When work, by gas injection port to air is injected inside fastening spring, fastening spring is adjusted
Rigidity, when so that fastening spring may insure that pressing plate squeezes optical fiber at various pressures to the extruding force of pressing plate, remains
Straightened condition further plays a protective effect to pressure sensor, improves the service life of pressing mold, improve pressure
The accuracy for the data that sensor detects, so that detection data is with more persuasion property.
The gear includes outer tooth ring, terminal pad and cylinder；The outer tooth ring is cyclic structure, circumferential direction on outer tooth ring inner wall
Equipped with several circular grooves；The terminal pad is located at the inside of outer tooth ring, and terminal pad is connected with motor output shaft；The number of cylinders
Amount is identical as circular groove quantity, and cylinder is circumferentially fixed on the outer wall of terminal pad, and the piston rod of cylinder can be in circular groove
Interior flexible, cylinder is for connecting outer tooth ring and terminal pad.When work, adjusts cylinder and the piston rod of cylinder is made to protrude into outer tooth ring
In circular groove so that terminal pad and outer tooth ring are joined together to form a complete gear, by cylinder by terminal pad with
Outer tooth ring links together, so that outer tooth ring, connecting rod one, connecting rod two and the component disassembly that pressing plate forms are more convenient, to make
It is more convenient to obtain pressing mold carrying, meanwhile, cylinder is arranged in terminal pad can make terminal pad adapt to different outer tooth rings, to make
Obtaining terminal pad can match from more different outer tooth rings, connecting rod one, connecting rod two with the component that pressing plate forms, and be formed different
Pressing mold, and then pressure test is carried out to various optical fiber, the scope of application of pressure test mold is improved, and then improve practical
Property.
Beneficial effects of the present invention are as follows:
1. a kind of quality inspection technique of quantum secret communication transmission fiber of the present invention, the technique is using sampling quality inspection
Mode to optical fiber not by when ambient pressure with pressure by different angle when, the variation of fiber transmission performance is detected,
To judge whether the quality of optical fiber is qualified, in this way by the simulation to external environment so that the data that quality inspection obtains have more
Reference value and persuasion property.
2. a kind of quality inspection technique of quantum secret communication transmission fiber of the present invention, what which used protects quantum
The multi-angle pressure test particular manufacturing craft of close communications optical fiber by pressing plate be arranged arc groove make optical fiber by
Transverse shifting will not occur when pressure, improve the accuracy of detection data, so that quality inspection result more has persuasion, together
When, avoid because optical fiber it is traversing due to repeated detection, shorten the time of detection, accelerate production efficiency.
3. a kind of quality inspection technique of quantum secret communication transmission fiber of the present invention, what which used protects quantum
The multi-angle pressure test particular manufacturing craft of close communications optical fiber is provided by the adjustable fastening spring of setting rigidity for pressing plate
One pressure, so that optical fiber, when being squeezed, pressing plate will not bend under the action of extruding force, to ensure that pressing plate
Internal pressure sensor will not damage, and then ensure that the accuracy of detection data, so that the result of quality inspection is with higher
Persuasion property.
Detailed description of the invention
Fig. 1 is flow chart of the invention
Fig. 2 is main view of the invention；
Fig. 3 is the connection schematic diagram of connecting rod one and gear of the present invention；
Fig. 4 is the structural schematic diagram of fastening spring and its internal pipeline of the invention；
Fig. 5 is the structural schematic diagram of gear of the invention；
In figure: pressing mold 1, telescopic rod 2, gear 3, connecting rod 1, connecting rod 25, pressing plate 6, pressure sensor 7, destressing cavity
8, fastening spring 9, outer tooth ring 31, terminal pad 32, cylinder 33, gas injection port 91.
Specific embodiment
It is carried out using quality inspection technique of Fig. 1-Fig. 5 to a kind of quantum secret communication transmission fiber of an embodiment of the present invention
As described below.
As shown in Figures 1 and 2, the quality inspection technique of a kind of quantum secret communication transmission fiber of the present invention, the technique
Include the following steps:
Step 1: being sampled the optical fiber of production, selects sample to be detected；
Step 2: after selecting sample to be tested in step 1, by relevant detection instrument to not by any ambient pressure
Optical fiber detected；
Step 3: in step 2 to not detected by the optical fiber of any pressure after, by being transmitted to quantum secret communication
The multi-angle pressure test particular manufacturing craft of optical fiber carries out multi-angle pressurization to optical fiber, then accordingly by coherent detection tool to light
Fibre is detected；
Step 4: the detection after the completion of being detected in step 3, when comparative analysis optical fiber is not pressurized and when multi-angle is pressurized
Data judge whether the quality of optical fiber is qualified；
Wherein, to the multi-angle pressure test particular manufacturing craft of quantum secret communication transmission fiber, packet described in step 3
Include two pieces of pressing molds 1 of arrangement symmetrical above and below；The pressing mold 1 include telescopic rod 2, motor, gear 3, connecting rod 1, connecting rod 25,
Pressing plate 6 and pressure sensor 7；2 lower end of telescopic rod is equipped with cavity；The motor is mounted on the lower end of telescopic rod 2
On outer wall；The gear 3 is located in the cavity of telescopic rod 2, and gear 3 is mounted on the output shaft of motor；The connecting rod 1 is solid
It is scheduled on the lower left of gear 3；The connecting rod 25 is fixed on the lower right of gear 3；6 upper end of pressing plate respectively with connecting rod 1 with
Connecting rod 25 is connected, and pressing plate 6 is for squeezing optical fiber；The pressure sensor 7 is located in pressing plate 6, and pressure sensor 7 is for examining
The pressure that optical fiber is subject to is surveyed, pressure sensor 7 is mounted in pressing plate 6, so that sense of the pressure sensor 7 to pressure suffered by optical fiber
Should be more sensitive, improve the accuracy of detection data.When work, optical fiber is placed between two pressing molds 1,2 band of telescopic rod
Dynamic motor, gear 3, connecting rod 1, connecting rod 25 move together with pressing plate 6, and pressing plate 6 squeezes optical fiber, the pressure sensing inside pressing plate 6
Device 7 detects pressure suffered when optical fiber is squeezed；In the process, connecting rod 1 and connecting rod 25 can be driven by motor rotation
It rotating together, pressing plate 6 rotates under the action of connecting rod 1 is with connecting rod 25, so that the angle that optical fiber is squeezed changes,
It whereby it can be detected that influence of the pressure to optical fiber of different angle, so that detection is more comprehensive, detection data, which has more, to be said
Clothes property and practicability.
As shown in Fig. 2, 6 lower end surface of pressing plate is evenly arranged with the groove of arc, arc groove for increase optical fiber with
Frictional force between pressing plate 6.When work, arc groove increases the frictional force between optical fiber and pressing plate 6, so that optical fiber is in multi-angle
Transverse shifting will not occur when extruding, so that detection data is more accurate, while avoiding and repeatedly being weighed because of optical fiber horizontal movement
New detection, reduces workload, has saved the time.
As shown in Figure 2 and Figure 3, the connecting rod 1, connecting rod 25 are fixedly connected by welding with gear 3, connecting rod
One 4 are arranged in parallel with several convex blocks with the end of connecting rod 25, and gear 3 is corresponding with the junction of connecting rod 1, connecting rod 25
Groove is set, and convex block is located in groove, and convex block is used for so that welding stronger with groove.When work, by connecting rod 1 and connecting rod
In groove on 25 convex block insertion gear 3, then connecting rod 1 and connecting rod 25 are linked together by welding, is welded
It connects so that connecting rod 1, connecting rod 25 and the connection of gear 3 are stronger, improves the service life of pressing mold 1, convex block and groove
Setting, improves the anti-pressure ability of weld, junction will not be broken under biggish pressure, improve pressure
The practicability of mould 1 increases the scope of application of pressing mold 1.
As shown in figure 3, the connecting rod 1, connecting rod 25 and 3 junction of gear are additionally provided with destressing cavity 8, destressing is empty
Chamber 8 is used to eliminate the stress of weld.When work, the presence of destressing cavity 8 eliminates connecting rod 1, connecting rod 25 and gear 3
Junction stress, improve the toughness of weld, further improve the anti-pressure ability of weld, improve pressing mold 1
Service life.
As shown in Fig. 2, being additionally provided with fastening spring 9 on the pressing mold 1；9 left end of fastening spring is connected to connecting rod 1
On, 9 right end of fastening spring is connected on connecting rod 25, and 9 left and right ends of fastening spring are symmetrically fixed, and fastening spring 9 is curved from middle part
Folding, 9 middle part inflection point of fastening spring are fixed on 6 upper end midpoint of pressing plate, and fastening spring 9 is for preventing pressing plate 6 curved from middle
It is bent.When work, 9 inflection point of fastening spring is connected to the midpoint of pressing plate 6, and when pressing plate 6 squeezes optical fiber, fastening spring 9 makes
The middle section of pressing plate 6 will not bend under the action of extruding force, avoid the pressure sensor 7 inside pressing plate 6 and damage,
The service life of pressing mold 1 is improved, meanwhile, the excessive data inaccuracy for leading to detection of 7 deformation of pressure sensor is avoided, thus
The accuracy of optical fiber pressure value detection is improved, and then improves the persuasion for the data that detection obtains, improves detection data
Practicability.
As shown in figure 4, being equipped with hollow pipeline inside the fastening spring 9, air, hollow pipe are filled in hollow pipe
Road is used to adjust the rigidity of fastening spring 9；Gas injection port 91 is additionally provided on the fastening spring 9, gas injection port 91 is used for fastening bullet
Air is injected in spring 9 or releases the air in fastening spring 9.When work, by gas injection port 91 to infusing inside fastening spring 9
Enter air, the rigidity of fastening spring 9 is adjusted, so that fastening spring 9 may insure pressing plate 6 different the extruding force of pressing plate 6
It when squeezing optical fiber under pressure, remains straightened condition, a protective effect further is played to pressure sensor 7, improve
The service life of pressing mold 1, improves the accuracy for the data that pressure sensor 7 detects, so that detection data is with more saying
Clothes property.
As shown in figure 5, the gear 3 includes outer tooth ring 31, terminal pad 32 and cylinder 33；The outer tooth ring 31 is cyclic annular knot
Structure is circumferentially with several circular grooves on 31 inner wall of outer tooth ring；The terminal pad 32 is located at the inside of outer tooth ring 31, terminal pad 32
It is connected with motor output shaft；33 quantity of cylinder is identical as circular groove quantity, and cylinder 33 is circumferentially fixed in terminal pad 32
On outer wall, the piston rod of cylinder 33 can stretch in circular groove, and cylinder 33 is for connecting outer tooth ring 31 and terminal pad 32.Work
When making, adjusts cylinder 33 and the piston rod of cylinder 33 is protruded into the circular groove of outer tooth ring 31, so that terminal pad 32 and external tooth
Ring 31 is joined together to form a complete gear 3, and terminal pad 32 and outer tooth ring 31 are linked together by cylinder 33, made
The component that form of outer tooth ring 31, connecting rod 1, connecting rod 25 and pressing plate 6 dismantle it is more convenient so that the carrying of pressing mold 1 is more
It is convenient, meanwhile, cylinder 33 is arranged in terminal pad 32 can make terminal pad 32 adapt to different outer tooth rings 31, so that connection
Disk 32 can be matched from more different outer tooth rings 31, connecting rod 1, connecting rod 25 with the component that pressing plate 6 forms, and be formed different
Pressing mold 1, and then to various optical fiber carry out pressure test, improve the scope of application of pressure test mold, and then improve reality
The property used.
Concrete operations process is as follows:
When work: optical fiber being placed between two pressing molds 1 up and down, phase under the action of telescopic rod 2 of the pressing plate 6 on pressing mold 1
It is mutually close and squeeze optical fiber, pressure when 7 detection fiber of pressure sensor compression pressing plate 6 inside, when needing to detect different angles
When influence of the pressure of degree to optical fiber, motor is opened, motor driven gear 3 rotates, and under the action of gear 3, pressing plate 6 is with even
Bar 1 and connecting rod 25 rotate certain angle, then squeeze optical fiber with dynamic pressure plate 6 by telescopic rod 2, pass through the pressure inside pressing plate 6
7 detection fiber of force snesor different angle be pressurized when pressure, when finally obtaining pressure of the optical fiber by different angle, optical fiber by
The influence arrived.In the process, the arc groove being arranged on pressing plate 6 increases the frictional force between optical fiber and pressing plate 6, so that optical fiber exists
Multi-angle when squeezing will not transverse shifting so that detection data is more accurate, while avoiding multiple because of optical fiber horizontal movement
Again it detects, reduces workload, saved the time；Connecting rod 1, connecting rod 25 and gear 3 are fixed on one by welding
It rises, the convex block of connecting rod 1 and connecting rod 25 is inserted into the groove on gear 3, then by welding by connecting rod 1 and even
Bar 25 links together, and welding improves making for pressing mold 1 so that connecting rod 1, connecting rod 25 and the connection of gear 3 are stronger
With the service life, the setting of convex block and groove improves the anti-pressure ability of weld, allow junction under biggish pressure not
It can be broken, improve the practicability of pressing mold 1, increase the scope of application of pressing mold 1；Meanwhile the presence of destressing cavity 8 disappears
In addition to the stress of the junction of connecting rod 1, connecting rod 25 and gear 3, the toughness of weld is improved, weldering is further improved
The anti-pressure ability for meeting place improves the service life of pressing mold 1；9 inflection point of fastening spring is connected to the midpoint of pressing plate 6, works as pressure
When plate 6 squeezes optical fiber, fastening spring 9 makes the middle section of pressing plate 6 not bend under the action of extruding force, avoids
Pressure sensor 7 inside pressing plate 6 damages, and improves the service life of pressing mold 1, meanwhile, avoid 7 deformation of pressure sensor
Lead to the data inaccuracy of detection greatly, to improve the accuracy of optical fiber pressure value detection, and then improves what detection obtained
The persuasion of data improves the practicability of detection data；And the rigidity of fastening spring 9 is adjustable, by gas injection port 91 to tight
Gu injecting air inside spring 9, the rigidity of fastening spring 9 is adjusted, so that fastening spring 9 may insure the extruding force of pressing plate 6
When pressing plate 6 squeezes optical fiber at various pressures, remains straightened condition, one further is played to pressure sensor 7
Protective effect improves the service life of pressing mold 1, improves the accuracy for the data that pressure sensor 7 detects, so that detection
Data are with more persuasion property；Adjusting cylinder 33 protrudes into the piston rod of cylinder 33 in the circular groove of outer tooth ring 31, so that even
It connects disk 32 and outer tooth ring 31 is joined together to form a complete gear 3, by cylinder 33 by terminal pad 32 and outer tooth ring 31
It links together, so that outer tooth ring 31, connecting rod 1, connecting rod 25 and the component disassembly that pressing plate 6 forms are more convenient, so that
Pressing mold 1 carry it is more convenient, meanwhile, the cylinder 33 being arranged in terminal pad 32 can make terminal pad 32 adapt to different outer tooth rings
31, so that the component that terminal pad 32 can be formed from more different outer tooth rings 31, connecting rod 1, connecting rod 25 and pressing plate 6
It matches, forms different pressing molds 1, and then pressure test is carried out to various optical fiber, improve the applicable model of pressure test mold
It encloses, and then improves practicability.
More than, it is illustrated about one embodiment of the present invention, but the present invention is not limited to the above embodiments, not
Various changes are able to carry out in the range of disengaging present subject matter.
(A) in the above-described embodiment, a power is provided to pressing plate by fastening spring when pressing plate squeezes optical fiber, so that
Pressing plate is not in bending, but not limited to this, spring can also be replaced to provide power to pressing plate by elastic rod, so that pressing plate is not
It bends.
Industrial applicibility
According to the present invention, the pressure which can effectively measure extraneous different angle transmits quantum secret communication
The influence of fiber transmission performance judges whether quantum secret communication transmission fiber quality is qualified with this, thus this quantum secure
The quality inspection technique of communications optical fiber is useful in optical fiber quality detection technique field.
Claims (7)
1. a kind of quality inspection technique of quantum secret communication transmission fiber, it is characterised in that: the technique includes the following steps:
Step 1: being sampled the optical fiber of production, selects sample to be detected；
Step 2: after selecting sample to be tested in step 1, by relevant detection instrument to not by the light of any ambient pressure
Fibre is detected；
Step 3: in step 2 to not detected by the optical fiber of any pressure after, by quantum secret communication transmission fiber
Multi-angle pressure test particular manufacturing craft to optical fiber carry out multi-angle pressurization, then accordingly by coherent detection tool to optical fiber into
Row detection；
Step 4: the testing number after the completion of being detected in step 3, when comparative analysis optical fiber is not pressurized and when multi-angle is pressurized
According to judging whether the quality of optical fiber is qualified；
Wherein, described in step 3 to the multi-angle pressure test particular manufacturing craft of quantum secret communication transmission fiber, including it is upper
Under two pieces of pressing molds (1) being arranged symmetrically；The pressing mold (1) includes telescopic rod (2), motor, gear (3), connecting rod one (4), connects
Bar two (5), pressing plate (6) and pressure sensor (7)；Telescopic rod (2) lower end is equipped with cavity；The motor, which is mounted on, to be stretched
On the lower end outer wall of contracting bar (2)；The gear (3) is located in the cavity of telescopic rod (2), and gear (3) is mounted on motor
On output shaft；The connecting rod one (4) is fixed on the lower left of gear (3)；The connecting rod two (5) is fixed on the bottom right of gear (3)
Side；Pressing plate (6) upper end is connected with connecting rod one (4) with connecting rod two (5) respectively, and pressing plate (6) is for squeezing optical fiber；The pressure
Force snesor (7) is located in pressing plate (6), and pressure sensor (7) is used for the pressure that detection fiber is subject to.
2. a kind of quality inspection technique of quantum secret communication transmission fiber according to claim 1, it is characterised in that: the pressure
Plate (6) lower end surface is evenly arranged with the groove of arc, and arc groove is used to increase the frictional force between optical fiber and pressing plate (6).
3. a kind of quality inspection technique of quantum secret communication transmission fiber according to claim 1, it is characterised in that: the company
Bar one (4), connecting rod two (5) are fixedly connected by welding with gear (3), and the end of connecting rod one (4) and connecting rod two (5) is flat
Row is provided with several convex blocks, gear (3) setting groove corresponding with the junction of connecting rod one (4), connecting rod two (5), convex block
In groove, the setting of convex block and groove is so that welding is stronger.
4. a kind of quality inspection technique of quantum secret communication transmission fiber according to claim 3, it is characterised in that: the company
Bar one (4), connecting rod two (5) and gear (3) junction are additionally provided with destressing cavity (8), and destressing cavity (8) is for eliminating welding
The stress at place.
5. a kind of quality inspection technique of quantum secret communication transmission fiber according to claim 1, it is characterised in that: the pressure
Fastening spring (9) are additionally provided on mould (1)；Fastening spring (9) left end is connected on connecting rod one (4), fastening spring (9) right end
It is connected on connecting rod two (5), fastening spring (9) left and right ends are symmetrically fixed, and fastening spring (9) is bent from middle part, fastening spring
(9) middle part inflection point is fixed on pressing plate (6) upper end midpoint, and fastening spring (9) is for preventing pressing plate (6) to be bent from middle.
6. a kind of quality inspection technique of quantum secret communication transmission fiber according to claim 5, it is characterised in that: described tight
Gu being equipped with hollow pipeline inside spring (9), air is filled in hollow pipe, hollow pipe is for adjusting fastening spring (9)
Rigidity；It is additionally provided with gas injection port (91) on the fastening spring (9), it is empty that gas injection port (91) is used for the injection into fastening spring (9)
Gas releases the air in fastening spring (9).
7. a kind of quality inspection technique of quantum secret communication transmission fiber according to claim 1, it is characterised in that: the tooth
Wheel (3) includes outer tooth ring (31), terminal pad (32) and cylinder (33)；The outer tooth ring (31) is cyclic structure, outer tooth ring (31)
Several circular grooves are circumferentially on inner wall；The terminal pad (32) is located at the inside of outer tooth ring (31), terminal pad (32) and electricity
Machine output shaft is connected；Cylinder (33) quantity is identical as circular groove quantity, and cylinder (33) is circumferentially fixed in terminal pad (32)
Outer wall on, the piston rod of cylinder (33) can stretch in circular groove, cylinder (33) for connect outer tooth ring (31) and even
Connect disk (32).
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