CN208952977U - The package platforms of fiber-optic grating sensor - Google Patents
The package platforms of fiber-optic grating sensor Download PDFInfo
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- CN208952977U CN208952977U CN201821372062.5U CN201821372062U CN208952977U CN 208952977 U CN208952977 U CN 208952977U CN 201821372062 U CN201821372062 U CN 201821372062U CN 208952977 U CN208952977 U CN 208952977U
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Abstract
The utility model discloses a kind of package platforms of fiber-optic grating sensor, it is related to the encapsulation of fiber-optic grating sensor, the main points of its technical scheme are that, including encapsulating table, the encapsulating structure for packaged fiber grating sensor, the stationary fixture for fixing optical fiber end and the force application apparatus for pulling fiber grating are fixed on encapsulating table.The convenient encapsulation to fiber-optic grating sensor of the utility model.
Description
Technical field
The utility model relates to the encapsulation of fiber-optic grating sensor, in particular to a kind of encapsulation of fiber-optic grating sensor is flat
Platform.
Background technique
Fiber-optic grating sensor is a kind of sensing process based on fiber grating, is by extraneous physical parameter to optical fiber cloth
The modulation of glug wavelength obtains heat transfer agent, is a kind of wavelength modulation fiber sensor.
The encapsulation of fiber grating is fiber-optic grating sensor indispensable step in practical engineering applications, because of naked light
The core diameter very little (125 μm) of fine grating, especially fragile, shear behavior is poor, survival rate is low, if by it directly as sensor
It will be unable to competent extensive style construction in engineering.
In order to solve the above-mentioned technical problem, existing a kind of fiber-optic grating sensor, including in order to solve the above-mentioned technical problem,
A kind of existing fiber-optic grating sensor has the optical fiber of grating including frame sheet and being threaded through, sets in frame sheet in frame sheet
It is equipped with welding groove, the optical fiber at grating both ends is placed in above welding groove and fills solder in welding groove, stretching optical fiber changes light
It is cooling after solder is heated after the wavelength of grid, it completes the welding of frame sheet and optical fiber completing encapsulation.This fiber grating
Grating is encapsulated in by sensor to be increased the intensity of optical fiber grating sensing and convenient constructs in engineering in frame sheet.
In order to make this kind of fiber-optic grating sensor, a kind of existing encapsulating structure of fiber-optic grating sensor, including it is used for
It puts the enclosed seat of frame sheet, be arranged on enclosed seat for the heating device for welding groove heating and for controlling heating temperature
The temperature control device of degree.
But the encapsulating structure is placed directly within desktop and is packaged to operate and is not enough facilitated.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of envelopes of fiber-optic grating sensor
Assembling platform can allow the encapsulation of fiber-optic grating sensor more convenient.
Above-mentioned technical purpose is realized by technical solution once, a kind of package platforms of fiber-optic grating sensor, packet
Encapsulating table is included, the encapsulating structure for packaged fiber grating sensor is fixed on encapsulating table, for fixing consolidating for optical fiber end
Clamp tool and the force application apparatus for pulling fiber grating.
Through the above technical solutions, frame sheet is placed on encapsulating structure, optical fiber one end is fixed using stationary fixture, is led to
Force application apparatus is crossed to stretch optical fiber, since encapsulating structure, stationary fixture and force application apparatus are each attached on encapsulating table, behaviour
Make more convenient, is stretched.
Further, stationary fixture and force application structure are located at the two sides of encapsulating structure, and stationary fixture, encapsulation knot
Structure, force application structure are located along the same line.
Through the above technical solutions, optical fiber one end is fixed fixture clamping, optical fiber is stretched by force application structure, when
Fiber grating, which is stretched to after certain deformation, to be passed through encapsulating structure and encapsulates frame sheet and optical fiber, the fixation on same straight line
Fixture, encapsulating structure and force application structure can operate simpler, make the optical fiber force process that is in a straight line more square
Just.
Further, the stem for limiting optical fiber placement position is provided on encapsulating table, the stem is staggeredly set
It sets, optical fiber is put linearly along stem.
Through the above technical solutions, swinging for optical fiber can be limited, optical fiber is limited to by stem optical fiber
Facilitate the force of force application apparatus on straight line.
Further, the encapsulating structure includes for putting the enclosed seat of frame sheet, being arranged on enclosed seat for being
The heating device that welding groove heats and the temperature control device for controlling heating temperature, the enclosed seat are fixed on encapsulating table.
Through the above technical solutions, fiber-optic grating sensor is placed on enclosed seat, filled by the heating on enclosed seat
Set and solder bath heated, the solder melted in solder bath welds optical fiber and frame sheet, simple to operate, relative to
Welder improves safety, avoids welder process damage frame sheet or optical fiber.
Further, the stationary fixture, bottom are provided with heightening mat, and the upper surface and encapsulating table upper surface of heightening mat are total
Face, is provided with adapting table between stem and encapsulating table, adapting table upper surface is coplanar with heightening mat upper surface.
Through the above technical solutions, making operation more convenient by the setting of heightening mat, the height of optical fiber being lifted to one
It causes, avoids the Impact direction of the grating as caused by the shaking of force side from changing, influence encapsulation precision.
Further, the enclosed seat includes two pieces thermally conductive be arranged in parallel in above encapsulating table, and frame horse is two
Between thermally conductive of block, welding groove is placed in thermally conductive above, in fixed thermally conductive of the insertion of the heating device.
Through the above technical solutions, by frame horse between two pieces thermally conductive, can by the middle part of frame sheet with it is thermally conductive
It is separated between platform, does not allow the direct thermal contact conductance platform in the middle part of frame sheet, carrying out protection to frame sheet reduces since temperature is excessively high right
The risk of mine Bigpian damage.
Further, the thermally conductive outside, which is sticked, limit plate, and the limit plate upper surface is offered for frame sheet two
Hold the holding groove of insertion.
Through the above technical solutions, moving left and right for limiting frame piece prevents by the end insertion holding groove of frame sheet
Due to the wobble effects encapsulation precision of frame sheet.
Further, heat insulating mattress is provided on the thermally conductive platform, frame sheet is placed on heat insulating mattress and frame sheet welding section is pasted
On thermally conductive platform, the upper surface of two thermally conductive opposite sides offers the heat dam for heat insulating mattress insertion.
Through the above technical solutions, by heat insulating mattress, on the one hand to frame sheet, it arrives supporting role, prevents in the middle part of frame sheet
Vacantly, the risk for the deformation that may be generated due to the gravity of itself in a heated state is reduced.
Further, heat-insulated gap is provided between the limit plate and thermally conductive.
Through the above technical solutions, will be isolated between limit plate and thermally conductive using heat-insulated gap, allows in frame sheet and weld
Slot contacts outside with thermally conductive, and other parts do not contact directly with thermally conductive, reduce in heating process to frame sheet and optical fiber
The damage of performance.
In summary the utility model have the utility model has the advantages that
1. by the way that enclosed seat to be fixed on encapsulating table, carried out by stationary fixture on encapsulating table and force application apparatus
Encapsulation, the operation is more convenient；
2. by the setting of stem allow optical fiber Impact direction will not the force direction of hand to force application apparatus change,
And then improve the encapsulation precision of sensor；
3. on the one hand can be allowed using thermally conductive the smooth of surface by the way that encapsulating structure is arranged to two parallel thermally conductive
Solder bath is heated evenly, and welding effect is more preferable, is on the other hand played a supporting role, and defines the opposite of heating device and solder bath
Position, operation is more convenient, meanwhile, thermally conductive be arranged in parallel allows frame horse to prevent frame sheet between two thermally conductive
The direct thermal contact conductance platform in middle part grating precision is had an impact.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of fiber-optic grating sensor in embodiment；
Fig. 2 is the portion the A enlarged drawing in Fig. 1；
Fig. 3 is the structural schematic diagram of fiber-optic grating sensor stationary plane in embodiment；
Fig. 4 is the partial structure diagram that fiber-optic grating sensor is inserted into protection pipe in embodiment；
Fig. 5 is the structural schematic diagram of the package platforms of fiber-optic grating sensor in embodiment；
Fig. 6 is the structural schematic diagram of the fixed structure of fiber-optic grating sensor in embodiment；
Fig. 7 is the structural schematic diagram of the force application apparatus of fiber-optic grating sensor in embodiment；
Fig. 8 is the structural schematic diagram of optical fiber stationary fixture in embodiment；
Fig. 9 is the structural schematic diagram of optical fiber stationary fixture grip optical fiber in embodiment；
Figure 10 is the structural schematic diagram of the calibration platform of fiber-optic grating sensor in embodiment；
Figure 11 is the explosive view of the calibration platform of fiber-optic grating sensor in embodiment；
Figure 12 is the partial structure diagram of the calibration platform of fiber-optic grating sensor in embodiment；
Figure 13 is the schematic diagram of ranging rod measuring state in embodiment；
Figure 14 is in embodiment for calibrating the structural schematic diagram of the stationary fixture of platform；
Figure 15 is the circuit diagram of the temperature control equipment in embodiment.
Appended drawing reference: 1, optical fiber；10, protection pipe；2, frame sheet；20, fine slot is set；21, welding groove；22, welding section；23,
Point weld groove；24, deformation area；240, deformation frame；25, protection zone；250, interior protection hole；251, outer protection hole；3, fiber grating passes
The encapsulating structure of sensor；30, enclosed seat；31, thermally conductive；32, limit plate；33, heat-insulated gap；34, supporting element；340, bottom plate；
341, support plate；342, bearing plate；343, heat-insulated roller；344, instlated tubular；35, heat insulating mattress；36, heating rod；4, encapsulating table；40,
Compressing member；400, pressed seat；401, bar is pressed；41, stem；42, heightening mat；5, consolidating for fiber-optic grating sensor encapsulation
Clamp tool；50, pedestal；51, connecting plate；510, the first vertex；511, the second vertex；512, third vertex；513, the 4th vertex；
52, drive rod；520, hand-held part；53, compressor arm；54, bar is mortgaged；55, force rod；56, it holds down assembly；560, adjusting screw rod；
561, adjusting nut；562, coincide plate；6, for the force application apparatus of fiber-optic grating sensor；60, solid wheel plate；61, pulley；62,
Shaft；63, weight member；It 630, is fine bar；631, connecting rod；64, receiving block；65, gravity block；650, mounting groove；7, optical fiber light
The calibration platform of gate sensor；70, pedestal is calibrated；700, sliding rail；701, balancer；71, determine fixed station；710, through-hole；72, it moves
Fixed station；720, slide bar；73, ranging rod；74, stretching device；740, axis is tensed；741, silk is tensed；75, trimming assembly；750,
Pole；7500, stock；7501, quarter butt；751, fine adjustment shaft；752, closely-pitched screw rod；76, tightening device；760, fixed column；761,
Limited block；762, fixed ring；763, connecting column；8, for calibrating the stationary fixture of platform；80, seat is calibrated；81, rotation axis；82,
Mortgage seat；83, plate is mortgaged；84, jackscrew；85, rotating handle；9, temperature control equipment；90, detection module；91, base modules；
92, control module；920, manual control unit；921, normally closed non-self-lock-ing key；922, normally opened non-self-lock-ing key；923, it controls
Device；93, heating module；94, benchmark display screen；95, real-time display screen；96, isolating transformer.
Specific embodiment
Embodiment 1, a kind of fiber-optic grating sensor including the frame for packaged fiber 1 and are worn referring to Fig.1, Fig. 2
The optical fiber 1 being located in frame sheet 2, frame can be set into cylindrical type, flat or cubic, be preferably in the present embodiment
Flat frame sheet 2, flat frame sheet 2, which can facilitate, fixes or installs with Devices to test, the optical fiber inside frame sheet 2
It is carved with grating on 1, the spectrum by grating will be changed after deformation occurs for grating, optical fiber 1 enters part after frame sheet 2
It will reflect, form reflectance spectrum and refraction spectrum.Change by observing two spectrum is able to reflect out the shape of grating
Become, grating is encapsulated in frame sheet 2, frame sheet 2 is attached in the equipment for needing to measure, the slight shape of equipment can be experienced
Become, by the changing rule of corresponding deformation and spectrum, and then learns the deformation quantity of equipment.
Referring to Fig.1, frame sheet 2 includes encapsulating face and stationary plane, offers along its length on encapsulating face and sets fine slot 20, will
The optical fiber 1 for being carved with grating, which is placed on, to be set in fine slot 20, is set fine 20 both ends of slot and is offered welding groove 21, and 1 both ends of optical fiber are applied one
Fixed power makes grating generate a certain amount of deformation and is being welded after reaching expecting state by 1 grating demodulation instrument observation spectrum of optical fiber
It is in access slot 21 that optical fiber 1 and frame sheet 2 is fixed.Complete the encapsulation of fiber-optic grating sensor, the grating when deformation occurs for frame sheet 2
Will deformation occurs, reflectance spectrum can change with transmission spectrum, by observation spectrum it can be learnt that frame deformation.
Referring to Fig. 3, the two sides that frame sheet 2 is located on stationary plane offer a weld groove 23 respectively, by packaged optical fiber light
Gate sensor is attached in equipment to be measured, is being put on weld groove 23 by mash welder, fiber-optic grating sensor is fixed on
On Devices to test, frame sheet 2 will will drive grating deformation occurs after deformation occurs for Devices to test, can by observation spectrum
Learn the deformation quantity of the equipment.
Referring to Fig.1, in order to preferably fix optical fiber 1, frame sheet 2 uses hard material, selects steel conduct in the present embodiment
The material of frame sheet 2, the width in frame sheet 2 below corresponding grating are less than the deformation area 24 of the width at 2 both ends of frame sheet, institute
The deformation frame 240 that 24 both ends of deformation area are rectangle is stated, for reducing the rigid type of frame, increases the deformation in deformation area 24, utilizes four
The unstability of side type facilitates the deformation of deformation frame 240.24 both ends of deformation area take with 240 junction width of deformation frame less than deformation
Width, allow the stress point of deformation frame 240 to become smaller, deformation is more easier.In conjunction with Fig. 3, Fig. 4, two deformation frames 240 are located remotely from each other one
Side is welding section 22, and welding section 22 and the width of 240 junction of deformation frame are approximately equal to deformation frame 240 and 24 junction of deformation area
Width, 240 two sides of deformation frame of rectangle are approximately a connection relationship at this time, according to the unstable characteristic of parallelogram,
When two sides stretch frame sheet 2, deformation frame 240 makes the grating being encapsulated in frame sheet 2 that shape occur to deformation occurs
Become.On stationary plane be located at 22 two sides of welding section offer a weld groove 23 respectively, by packaged fiber-optic grating sensor be attached to
Amount equipment on, by mash welder point on weld groove 23, fiber-optic grating sensor is fixed on Devices to test, when to
Measurement equipment after deformation occurs frame sheet 2 will will drive grating deformation occurs, the shape of the equipment can be learnt by observation spectrum
Variable.
In conjunction with Fig. 2, two welding sections 22 are connected separately with protection zone 25 far from 240 side of deformation frame, and protection zone 25 is close
21 position of welding groove offers interior protection hole 250 perpendicular to frame sheet 2 from encapsulating face, and the interior protection hole 250 is along setting fine 20 side of slot
To with set fine slot 20 and be connected to, protection zone 25 offers outer protection hole perpendicular to frame sheet 2 from stationary plane far from 21 one end of welding groove
251, which is connected to along setting fine 20 direction of slot with fine slot 20 is set.Optical fiber 1 is from outer 251 one end of protection hole perpendicular to outer
Protection hole 251, which penetrates, sets fine slot 20.Grating will be carved with and be partially disposed in 24 position of deformation area, by being welded after quantitative stretching
Optical fiber 1 and frame sheet 2 are fixed slot 21.Be cased with protection pipe 10 at 1 both ends of optical fiber, the protection pipe 10 vertically with outer protection hole
251 penetrate protection zone 25 and contact setting fine 20 end of slot.For protecting optical fiber 1 to be not easily broken.
The optical fiber 1 for being carved with grating is successively vertically turned over outer guarantor along fine slot 20 is set from protection zone 25 by specific implementation process
Guard aperture 251 and interior protection hole 250 set fine slot 20 and from the interior protection hole 250 of the other end and outer protection hole 251 perpendicular to outer
Protection hole 251 is pierced by.Two optical fibers 1 apply certain power, can apply initial tensile force to grating, and in welding groove 21 by optical fiber
1 with the encapsulation of frame sheet 2, which is attached in equipment to be measured, is set it with to be measured from weld groove 23 with mash welder
It is standby fixed, when deformation occurs for Devices to test, grating deformation will be driven, and then change output spectrum, to learn Devices to test
Deformation quantity.
A kind of fixed structure of fiber-optic grating sensor, referring to Fig. 5, including for putting frame sheet 2 enclosed seat 30, set
Set the heating device on enclosed seat 30 for heating for welding groove 21 and the temperature control device for controlling heating temperature.By frame
Frame piece 2 is placed on enclosed seat 30, is the heating of welding groove 21 by heating device, the solder in welding groove 21 is melted and in turn will
Frame sheet 2 and optical fiber 1 are fixed.By the temperature of temperature control device control heating, can reduce since temperature is excessively high to 2 He of frame sheet
The risk that optical fiber 1 damages, or the risk due to the too low caused not prison welding of temperature.
In conjunction with Fig. 6, enclosed seat 30 is heat-insulated including being provided between two thermally conductive 31 disposed in parallel, two thermally conductive 31
Piece, the heat dam for heat shield insertion is offered on two thermally conductive 31, and 35 upper surface of heat insulating mattress is total with thermally conductive 31 upper surfaces
Face, frame sheet 2 are partially disposed on heat shield, and welding groove 21 is attached on thermally conductive 31, and thermally conductive 31 is deviated from 24 side of deformation area
It is parallel to thermally conductive 31 and is provided with the limit plate 32 that section is L shape, heat-insulated gap is provided between limit plate 32 and heat-insulated
33, supporting element 34 is provided below in limit plate 32, and limit plate 32 is supported and is fixed, and offers on limit plate 32 for frame sheet 2
The limiting slot that protection zone 25 is embedded in is used for the double swerve of limiting frame piece 2.
In conjunction with Fig. 6, supporting element 34 includes the bottom plate 340 positioned at thermally conductive 31 lower section, and 340 both ends of bottom plate are vertically and fixedly provided with branch
Fagging 341,341 upper surface of support plate is perpendicularly inward to extend bearing plate 342, and 32 lower surface of limit plate is attached on bearing plate 342,
And it is fixedly connected with bearing plate 342.It sequentially passes through support plate 341, two thermally conductive 31 and another support plate 341 is set side by side
It sets there are two heat-insulated roller 343, is provided with the jackscrew 84 for fixing heat-insulated roller 343 in support plate 341 perpendicular to heat-insulated roller 343.
Heat-insulated roller 343, which penetrates between thermally conductive 31 parts and two thermally conductive 31, is arranged with instlated tubular 344, heat-insulated 343 appearance face paste of roller
On 344 inner surface of instlated tubular, and 344 outer surface of instlated tubular is adjacent to thermally conductive 31, can thermally conductive 31 be fixed and will be led
Thermal station 31 supports, and allows thermally conductive 31 to separate with bottom plate 340, avoids thermally conductive 31 temperature conductions on bottom plate 340, prevents from operating
Personnel accidentally bottom out the scald of plate 340.
Heating device includes the heating rod 36 being threaded through on thermally conductive 31, by being thermally conductive for the heating of heating rod 36
31 heating, melt the solder on thermally conductive 31 in solder bath.Optical fiber 1 and frame sheet 2 is fixed.
Temperature control device includes being fixed on thermally conductive 31 that temperature sensor made of thermocouple and lotus root is used to connect in temperature biography
Temperature controller 923 on sensor and heating rod 36.Heating rod is stopped by temperature controller 923 when temperature reaches certain value
36 heating.Avoid the excessively high damage frame sheet 2 of temperature or damage optical fiber 1.
It is additionally provided with encapsulating table 4 in conjunction with Fig. 5, Fig. 6 in order to facilitate encapsulation, the bottom surface of bottom plate 340 is fixed on encapsulating table 4
On, it is corresponded on encapsulating table 4 positioned at 340 side of bottom plate and is provided with compressing member 40 between two thermally conductive 31.Compressing member 40 includes fixing
In the pressed seat 400 on encapsulating table 4 and the pressing bar 401 being hinged on pressed seat 400, the hinge joint and frame of bar 401 are pressed
Frame piece 2 is located at same level, and pressing bar 401 is pressed in frame sheet 2 by rotation using self gravity.For preventing encapsulating table
4 tilt in encapsulation process.
Heat insulating mattress 35 is placed in heat dam by specific implementation process, and frame sheet 2 is placed on heat insulating mattress 35, frame sheet 2
The protection zone 25 at both ends be placed in limiting slot, welding groove 21 is attached on thermally conductive 31, for heating rod 36 be powered to thermally conductive 31 into
Row heating, stops heating after solder is melted, learn solder melt point in advance, and pass through thermally conductive 31 temperature of thermocouple measurement, when
When reaching solder melt point, stops heating and fix frame sheet 2 and optical fiber 1, complete the encapsulation of fiber-optic grating sensor.
A kind of temperature control equipment 9, referring to Fig.1 5, including detection module 90, base modules 91, it is coupled to detection module 90
With the control modules 92 of base modules 91 and it is coupled to the heating module 93 of control module 92, control module 92 includes being coupled to
The controller 923 of detection module 90, and be coupled to the manual control unit 920 of controller 923 and be coupled to controller 923
For controlling the default unit of maximum temperature, started by manual control unit 920 and heated, and by presetting unit preset temperature
Value, when the temperature that detection module 90 detects reaches preset value, controller 923 will issue power-off signal, stop heating.
Detection module 90, including thermistor R3 and with the concatenated divider resistance R0 of thermistor R3, thermistor R3
Be connected between divider resistance R0 on controller 923, after thermistor R3 temperature changes thermistor R3 with point
Signal between piezoresistance R0 will change, and detection module 90 issues temperature signal, when temperature signal size reaches default
Controller 923 will control power-off when value, and heating module 93 stops heating.Detection module 90 passes through thermocouple reality in the present embodiment
It is existing.
Base modules 91, can power transformation by changing including variable resistance and the divider resistance R5 being connected on variable resistance
The resistance value of resistance changes the voltage drop between variable resistance and divider resistance in turn, is connected between variable resistance and divider resistance R5
On controller 923, and is issued to controller 923 and provide a reference value with preset reference signal.
Heating module 93, including the heating rod 36 being connected on controller 923, manual control unit 920 includes being connected on
Normally closed non-self-lock-ing key 921 between controller 923 and heating rod 36, be connected on it is normal between controller 923 and heating rod 36
The relay KM1 for opening non-self-lock-ing key 922 and being connected between controller 923 and heating rod 36, the relay it is normally opened
Contact KM1-1 is connected in parallel on normally opened non-self-lock-ing key 922.Normally opened non-self-lock-ing key 922 is pressed, relay KM1 obtains electric, heating rod
36 begin to warm up, and normally opened contact KM1-1 closure, controller 923 is continuously the power supply of heating rod 36.In order to facilitate observation to heat
Whether stick 36 is heating, and is parallel with indicator light L at 36 both ends of heating rod, and when circuit conducting, indicator light is lighted, and can learn
Whether heating rod 36 is working.It is proved if indicator light lights but heating rod 36 is there is no working, heating rod 36 itself goes out
Existing failure, can facilitate and do troubleshooting when equipment breaks down.When detection signal reaches preset value, controller 923 will
Follow current output becomes output of pulse signal, when controller 923 exports low level, relay instant cut-off, and normally opened contact
KM1-1 is restored to off-state, and heating rod 36 stops heat supply, since S1 and KM1-1 is in off-state at this time, institute at this time
It is not worked with the pulse signal of controller 923 for heating rod 36, heating rod 36 is not heating.In 36 heating process of heating rod
In, normally closed non-self-lock-ing key 921, relay instant cut-off are pressed, normally opened contact KM1-1 restores off-state, reaches the work of power-off
With.So the circuit needs manually opened, it can power off manually, also be able to pass through the controller 923 and automatically power off, operate cleverer
It is living.
Controller 923 selects the controller 923 of model REX-C100 in the present embodiment, for the safety in circuit,
It is connected with isolating transformer 96 between controller 923 and room electricity, is coupled on controller 923 for showing that thermocouple detection is real-time
The real-time display screen 95 of temperature, and the benchmark display screen 94 for showing 92 default value of default control module.
A kind of package platforms of fiber-optic grating sensor, referring to Fig. 5, including encapsulating table 4, the light being fixed on encapsulating table 4
Fine 1 stationary fixture and the force application structure for stretching optical fiber 1, enclosed seat 30 are fixed on encapsulating table 4, and frame sheet 2 is placed
On enclosed seat 30, the optical fiber 1 that there can be grating is penetrated into frame sheet 2, optical fiber 1 is fixed by 1 stationary fixture of optical fiber in front end, light
Fine 1 other end stretches optical fiber 1 by force application apparatus, after grating is stretched to suitable position, passes through 1 grating of optical fiber
Frame sheet 2 and optical fiber 1 are fixed and are encapsulated by encapsulating structure.
In order to make the encapsulation precision of 1 grating of optical fiber higher, needs for optical fiber 1 to be in a straight line, be located on encapsulating table 4
The both ends of enclosed seat 30 are plugged with the stem 41 for limiting 1 position of optical fiber, and optical fiber 1 is placed on stem 41 for convenience
It is interior, stem 41 is staggered, 1 stationary fixture bottom of optical fiber is provided with heightening mat 42, the upper surface of heightening mat 42 and frame
Piece 2 is coplanar, and the position and frame sheet 2 that force application apparatus exerts a force to optical fiber 1 are in the same plane, force application apparatus and enclosed seat 30 it
Between be provided with adapting table, adapting table upper surface and the upper surface of heightening mat 42 are in the same plane, and adapting table is submitted misplug and connect
There is stem 41, the gap of stem 41 is conllinear with 1 force direction of optical fiber.
A kind of stationary fixture for fiber-optic grating sensor encapsulation, referring to Fig. 5, Fig. 8, Fig. 9, including is threaded in increasing
Pedestal 50 on high pad 42 is vertically connected with connecting plate 51 on pedestal 50, and connecting plate 51 has 4 vertex, far from 50 side of pedestal
Respectively the first vertex 510 and the second vertex 511 are total to side with the second vertex 511 and are third vertex close to the point of pedestal 50
512, remaining vertex is the 4th vertex 513, and opposite first vertex 510 in the second vertex 511 is closer to pedestal 50, third vertex 512
It is parallel to connecting plate 51 and is hinged with drive rod 52, the first vertex 510 is parallel to connecting plate 51 and is hinged with compressor arm 53, compressor arm 53
End is hinged with mortgage bar 54, when compressor arm 53 is perpendicular to drive rod 52, the interface point and driving of mortgage bar 54 and compressor arm 53
Bar 52 is overlapped, and mortgage 54 other end of bar is parallel to 51 one end of separate connecting plate that connecting plate 51 is rotatably connected on drive rod 52.When
When compressor arm 53 is perpendicular to drive rod 52, mortgage bar 54 is parallel to drive rod 52.Drive rod 52 is arranged far from 51 one end of connecting plate
There is a hand-held part 520, compressor arm 53 is fixedly connected with far from 510 one end of the first vertex holds down assembly 56.56 are held down assembly including solid
Surely it is connected to force rod 55 of the compressor arm 53 far from 510 one end of the first vertex, is vertically connected with adjusting screw rod on force rod 55
560, adjusting screw rod 560 is located at about 55 two sides of force rod and is provided with adjusting nut 561, and 560 bottom of adjusting screw rod is connected with kiss
Plywood 562, the plate 562 that coincide are taper, and 562 bottom surface of plate that coincide is attached in heightening mat 42, and 562 stress point of identical plate of taper is to cut
The lesser upper surface in face, lower surface section is larger, and the stress of stress point is capable of increasing while reducing pressure suffered by optical fiber 1,
Lesser for more fragile, diameter optical fiber 1 is more to fixation.Hand-held part 520, drive rod 52 are pushed to identical 562 direction of plate
In rotary course, drive compressor arm 53 push down on mortgage bar 54, when mortgage bar 54 in parallel with drive rod 52 when, compressor arm 53 with
Drive rod 52 is parallel, and compressor arm 53 is vertical with mortgage bar 54 at this time, pushes up compressor arm 53, and compressor arm 53 drives mortgage bar 54
With upward active force, but catch bar can not be rotated with mortgage 54 driven in parallel bar 52 of bar, achieve the effect that it is self-locking, only
Holding down assembly on bar 54 can will be mortgaged by pushing when drive rod 52 56 lifts, more preferable to the fixed effect of optical fiber 1.
In order to improve the stability fixed to optical fiber 1, compressor arm 53 totally two, it is rotatably connected on 51 liang of connecting plate respectively
Side, drive rod 52 are arranged two, are rotatably connected on 51 two sides of connecting plate respectively, compressor arm 53 is located at 52 two sides of drive rod, stress
Bar 55 is two, and setting is in 560 two sides of adjusting screw rod, and its end is fixed on 53 end of compressor arm after bending.It can
Make 51 two sides stress of connecting plate symmetrical, improve stablize shape and to the stress of optical fiber 1 more evenly, while adjusting screw rod 560 can
It is slid along force rod 55 to close to or far from 51 direction of connecting plate, the relative position of clamped optical fiber 1 can be controlled.Adjust spiral shell
Fixinig plate is provided between mother 561 and force rod 55.
A kind of force application apparatus for fiber-optic grating sensor in conjunction with Fig. 7, including is fixed on 4 edge of encapsulating table, and position
In enclosed seat 30 away from two blocks of L-shaped solid wheel plates 60 of stationary fixture side, the pulley 61 being rotatably supported on solid wheel plate 60, with
And the weight member 63 of optical fiber 1 is pulled, two blocks of solid wheel plates 60 are opposite and are arranged in parallel, and rotational support has shaft between two fixed plates
62, intermediate pulley 61 is integrally attached in shaft 62, and pulley 61 is located at enclosed seat 30 far from stationary fixture side, 1 one end of optical fiber
It is fixed on encapsulating table 4 by stationary fixture, the other end naturally droops around pulley 61, and optical fiber 1 is located at 61 one end system of pulley
In weight member 63, the size that force application apparatus exerts a force to 1 grating of optical fiber is learnt by the weight member 63 of known quality.Pass through replacement
The quality of weight member 63 changes the deformation quantity of grating.
Weight member 63 include be fine bar 630, be vertically connected on be fine 630 end of bar connecting rod 631,631 end of connecting rod
Portion is connected with receiving block 64 and the gravity block 65 for increasing and decreasing gravity for weight member 63, is provided with mounting groove on gravity block 65
650, connecting rod 631 is embedded in mounting groove 650 and gravity block 65 is placed in receiving block 64.Phase is identified on gravity block 65
The weight answered, convenient for changing the power applied to optical fiber 1.
Frame sheet 2 is placed on enclosed seat 30, and optical fiber 1 is passed through into frame sheet 2, by grating alignment deformation area 24, light
One end of fibre 1 is fixed component and fixes, and by optical fiber 1 by stem 41, it is to use adhesive tape on fine bar 630 that the other end, which is wrapped in,
It is to be placed on pulley 61 on fine bar 630 and by optical fiber 1 that optical fiber 1, which is stained on, needs to add in receiving block 64 according to weight corresponding
The mass block of quality.For the power supply of heating rod 36, melt solder, optical fiber 1 is welded in frame sheet 2, completes optical fiber grating sensing
The encapsulation of device.
A kind of calibration platform of fiber-optic grating sensor, referring to Fig.1 0, the calibration of fiber-optic grating sensor is to pass through stretching
Fiber-optic grating sensor brings it about deformation, while the input spectrum in the optical fiber of fiber-optic grating sensor 1, is reflected by observation
The variable quantity of spectrum and output spectrum medium wavelength is corresponding with the physical deformation of fiber-optic grating sensor, obtains wavelength change and object
Proportionality coefficient between reason variation.A kind of calibration platform of fiber-optic grating sensor, in conjunction with Figure 11, Figure 12, including calibration pedestal
70, it is fixedly connected on calibration pedestal 70 and determines fixed station 71, slides to be connected to calibration pedestal 70 and be connected to and determine fixed station 71
On dynamic fixed station 72 and being respectively and fixedly connected to determine two on fixed station 71 and dynamic fixed station 72 for calibrating the fixation of platform
Fixture 8, across determine fixed station 71 be provided be attached on dynamic fixed station 72 for measure dynamic fixed station 72 with determine fixed station 71 it
Between gap ranging rod 73(referring to Fig.1 3), the rich 543-690B digital display dial gauge of ID-S112B tri- is selected in the present embodiment, it is fixed solid
Determine to offer the through-hole 710 being inserted into for ranging rod 73 on platform 71, the measurement end of the amesdial is inserted into the through-hole 710 and is attached to dynamic
On fixed station 72, stretching device for pulling dynamic fixed station 72 is provided with far from determining 71 one end of fixed station on dynamic fixed station 72
74, calibrate pedestal 70 and determine be provided between fixed station 71 for make fixed station 72 with determine fixed station 71 with it is close to each other become
The tightening device 76 of gesture.Packaged fiber-optic grating sensor is placed on and determines fixed station 71 and dynamic 72 junction of fixed station, is led to
Crossing tightening device 76 allows fixed station 72 to be mutually adjacent to fixed station 71 is determined, by the stationary fixture 8 for calibrating platform by light
The both ends of fiber grating sensor, which are separately fixed at, determines on fixed station 71 and dynamic fixed station 72, by stretching device 74 to far from fixed solid
Determine 71 direction of platform and pull dynamic fixed station 72, and then make the deformation area 24 of fiber-optic grating sensor deformation occurs, passes through ranging rod 73
Measurement is determined at a distance from fixed station 71 changes between dynamic fixed station 72, and then learns the deformation quantity of 1 sensor of grating fibers, by this
Deformation quantity is corresponding with the variable quantity of reflectance spectrum and output spectrum wavelength in optical fiber 1, and test of many times obtains multi-group data and then obtains
The Proportional coefficient K of fiber-optic grating sensor physical change amount X and wavelength variable quantity out.The fiber-optic grating sensor is attached to band to survey
In the equipment of amount, deformation occurs simultaneously for sensor after deformation occurs for equipment, the wave obtained according to Proportional coefficient K and observation spectrum
Long variable quantity it can be learnt that fiber-optic grating sensor physical change amount.
In conjunction with Figure 12, the two sides for calibrating the surface of the corresponding dynamic fixed station 72 of pedestal 70 are respectively set sliding rail 700, move fixed station
72 bottoms are fixed with the slide bar 720 that can be slid in sliding rail 700, and moving fixed station 72 can be by sliding rail 700 in calibration pedestal
It is slid on 70.
Tightening device 76 include across symmetrically arranged two fixed columns 760 for determining fixed station 71 and stretching to dynamic fixed station 72,
Fixed column 760 is provided with limited block 761 far from dynamic 72 one end of fixed station, and fixed column 760 can be prevented to dynamic 72 direction of fixed station
Mobile, fixed column 760 is provided with fixed ring 762 close to dynamic 72 one end of fixed station, corresponds to fixed column 760 on dynamic 72 bottom of fixed station
Position is fixed there are two connecting column 763, be connected between connecting column 763 and fixed ring 762 for make fixed station 72 and it is fixed admittedly
Determine the tension spring (being not drawn into figure) that platform 71 mutually abuts.
Stretching device 74 includes being fixed on the separate tension axis 740 for determining 71 side of fixed station in dynamic 72 bottom of fixed station, fixing
Balancer 701 on fixed base, both ends are fixed on balancer 701 and around the tension silk 741 for tensing axis 740, balances
Be provided on platform 701 for tensing the tension hole that passes through of silk 741, be provided on dynamic fixed station 72 for push to vertically with tense silk
741 directions push the trimming assembly 75 for tensing silk 741.It is vertically pushed by trimming assembly 75 and tenses silk 741, and then make fixation
Platform 72 is vertical direction due to pushing the direction for tensing silk 741, can allow along tension 741 direction of silk far from fixed station 71 is determined
Move distance be much smaller than vertical actuating length, it is convenient to the lesser stretching of fiber-optic grating sensor, reduce physical deformation amount
The order of magnitude facilitates calibration.
Trimming assembly 75 includes the pole 750 being rotatably connected on calibration pedestal 70, and pole 750 is rotated by axis of break,
Pole 750 includes orthogonal stock 7500 and quarter butt 7501, and 7501 end of quarter butt is provided in two tension silks 741
Between fine adjustment shaft 751, correspond to 7500 end thread of stock on balancer 701 and be connected with closely-pitched screw rod 752, the closely-pitched screw rod 752
Across calibration pedestal 70, it is connected to 7500 end of stock, stock 7500, quarter butt 7501 can be pushed by rotational alignment pedestal 70
It is rotated synchronously with stock 7500, quarter butt 7501, which pushes, tenses silk 741, and making tension silk 741, deformation occurs, and then makes fixed station 72
It is mobile away from fixed station 71 is determined, fixed station 71 and dynamic fixed station 72 are determined since the both ends of fiber-optic grating sensor have been fixed on
On, thus fiber-optic grating sensor deformation area 24 will deformation occurs, change simultaneously the output spectrum and reflected light of optical fiber 1
Spectrum, it is corresponding with wavelength deformation by physical deformation, realize calibration.
The both ends of fiber-optic grating sensor are separately fixed at dynamic fixed station 72 and determine fixed station 71 by specific implementation process
On, dynamic fixed station 72 is bonded with fixed station 71 is determined by abutting by tension device, the insertion of ranging rod 73 is determined on fixed station 71
It in through-hole 710 and is attached on dynamic fixed station 72, rotates closely-pitched screw rod 752, push stock 7500, quarter butt 7501 rotates synchronously, micro-
It adjusts axis 751 to push and tenses silk 741, and then make fixed station 72 far from fixed station 71 is determined, make the deformation area of fiber-optic grating sensor
24 deformation occurs, reads the wavelength of registration comparison optical fiber 1 reflectance spectrum and output spectrum on ranging rod 73.Pass through multi-group data
It obtains the coefficient of physical deformation amount and wavelength change, completes calibration.
It is a kind of for calibrating the stationary fixture 8 of platform, in conjunction with Figure 14, calibrate the dynamic fixed station 72 on platform and determine fixed station
It is provided with the stationary fixture 8 for calibrating platform on 71, moves fixed station 72 in the present embodiment and determines to be used on fixed station 71
The stationary fixture 8 for calibrating platform is identical, wherein and the stationary fixture 8 for calibrating platform moved on fixed station 72, which is arranged in, includes,
Threaded one end is connected to the calibration seat 80 of the cuboid on dynamic fixed station 72, which is rotatably connected to rotation axis
81,81 one end of rotation axis insertion calibration seat 80, the other end is rotatably connected to the mortgage seat 82 of cuboid, and mortgage seat 82 is close
One end is connected with the mortgage plate 83 for fixing fiber-optic grating sensor, and the mortgage plate 83 is connected to fiber-optic grating sensor
On, seat 82 is mortgaged far from fiber-optic grating sensor threaded one end and is connected with jackscrew 84, and one end of jackscrew 84 is connected to dynamic fixed station
On 72, the other end is provided with rotating handle 85.By rotating jackscrew 84, mortgage seat 82 is far from fiber-optic grating sensor one end to remote
It is mobile from dynamic 72 direction of fixed station, mortgage plate 83 by pressed fiber grating sensor, have the function that it is fixed, it is more preferable in order to reach
Fixed effect, the distance between jackscrew 84 and rotation axis 81 are realized much larger than rotation axis 81 and mortgage the distance between plate 83
Leverage increases the active force between mortgage plate 83 and fiber-optic grating sensor.
In order to which the surface for allowing mortgage plate 83 to mortgage plate 83 in pressed fiber grating sensor is attached to fiber-optic grating sensor
Surface on, mortgage plate 83 and mortgage seat 82 between be rotatablely connected, can prevent mortgage plate 83 faceted portions to fiber grating
Sensor damages.
Fiber-optic grating sensor is placed in dynamic fixed station 72 and determined on fixed station 71, by two use by specific implementation process
It is separately fixed on dynamic fixed station 72 in the calibration seat 80 on the stationary fixture 8 of calibration platform, jackscrew 84 is screwed in into mortgage seat 82
One end far from fiber-optic grating sensor, and be connected in dynamic fixing seat, mortgage plate 83 will be connected to fiber-optic grating sensor
On, and then fiber-optic grating sensor is fixed.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (9)
1. a kind of package platforms of fiber-optic grating sensor, including encapsulating table (4), it is characterised in that: encapsulating table is fixed on (4)
For the encapsulating structure of packaged fiber grating sensor, the stationary fixture for fixing optical fiber (1) end and for pulling light
The force application apparatus of fine (1) other end, the force application apparatus includes for fixing the optical fiber stationary fixture of optical fiber end, being fixed on light
The weight member (63) of fine (1) other end and for guiding optical cable (1) from being horizontally diverted vertical pulley (61).
2. the package platforms of fiber-optic grating sensor according to claim 1, it is characterised in that: stationary fixture and force fill
The two sides for being located at encapsulating structure are set, and stationary fixture, encapsulating structure, force application structure are located along the same line.
3. the package platforms of fiber-optic grating sensor according to claim 2, it is characterised in that: encapsulating table is arranged on (4)
There is the stem (41) for limiting optical fiber (1) placement position, the stem (41) is staggered, and optical fiber (1) is along stem
(41) it puts linearly.
4. the package platforms of fiber-optic grating sensor according to claim 3, it is characterised in that: the encapsulating structure includes
For putting the enclosed seat (30) of frame sheet (2), being arranged on enclosed seat (30) for the heating dress for welding groove (21) heating
It sets and the temperature control device for controlling heating temperature, the enclosed seat (30) is fixed on encapsulating table (4).
5. the package platforms of fiber-optic grating sensor according to claim 4, it is characterised in that: the stationary fixture, bottom
Portion is provided with heightening mat (42), and the upper surface of heightening mat (42) is coplanar with encapsulating table (4) upper surface, stem (41) and encapsulating table
(4) adapting table is provided between, adapting table upper surface is coplanar with heightening mat (42) upper surface.
6. the package platforms of fiber-optic grating sensor according to claim 5, it is characterised in that: enclosed seat (30) packet
Two pieces thermally conductive (31) being arranged in parallel in above encapsulating table (4) are included, frame sheet (2) frame is between two pieces thermally conductive (31), weldering
Access slot (21) is placed in thermally conductive (31) above, and the heating device is fixed to be inserted into thermally conductive (31).
7. the package platforms of fiber-optic grating sensor according to claim 6, it is characterised in that: thermally conductive (31) outside
Side, which is sticked, to be had limit plate (32), and limit plate (32) upper surface offers the holding groove for the insertion of frame sheet (2) both ends.
8. the package platforms of fiber-optic grating sensor according to claim 7, it is characterised in that: on thermally conductive (31)
It is provided with heat insulating mattress (35), frame sheet (2) is placed on heat insulating mattress (35) and frame sheet (2) welding section (22) is attached to thermally conductive (31)
On, the upper surface of two thermally conductive (31) opposite sides offers the heat dam for heat insulating mattress (35) insertion.
9. the package platforms of fiber-optic grating sensor according to claim 8, it is characterised in that: the limit plate (32) with
Heat-insulated gap (33) are provided between thermally conductive (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372062.5U CN208952977U (en) | 2018-08-23 | 2018-08-23 | The package platforms of fiber-optic grating sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821372062.5U CN208952977U (en) | 2018-08-23 | 2018-08-23 | The package platforms of fiber-optic grating sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113858065A (en) * | 2021-09-06 | 2021-12-31 | 西安交通大学 | Continuum robot shape sensor packaging clamp based on V-shaped groove base material |
| CN116817783A (en) * | 2023-08-31 | 2023-09-29 | 山东省科学院激光研究所 | Optical fiber strain sensor pre-tightening packaging structure and method |
-
2018
- 2018-08-23 CN CN201821372062.5U patent/CN208952977U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113858065A (en) * | 2021-09-06 | 2021-12-31 | 西安交通大学 | Continuum robot shape sensor packaging clamp based on V-shaped groove base material |
| CN116817783A (en) * | 2023-08-31 | 2023-09-29 | 山东省科学院激光研究所 | Optical fiber strain sensor pre-tightening packaging structure and method |
| CN116817783B (en) * | 2023-08-31 | 2023-12-05 | 山东省科学院激光研究所 | Optical fiber strain sensor pre-tightening packaging structure and method |
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