CN208854472U - It is a kind of for calibrating the stationary fixture of platform - Google Patents

Abstract

The utility model discloses a kind of for calibrating the stationary fixture of platform, it is related to fixture, the main points of its technical scheme are that: including the mortgage plate being connected on fiber-optic grating sensor, and the mortgage component being connected on fiber-optic grating sensor for plate will to be mortgaged, the mortgage component includes the rotation axis fixed with calibration platform, and the mortgage seat of rotation connection on the rotating shaft, the mortgage seat is connected with jackscrew far from fiber-optic grating sensor threaded one end, and the mortgage plate is connected to mortgage seat bottom far from jackscrew one end.The utility model, which facilitates for fiber-optic grating sensor to be fixed on, to be determined on fixed station and dynamic fixed station.

Description

It is a kind of for calibrating the stationary fixture of platform

Technical field

It is the utility model relates to fixture, in particular to a kind of for calibrating the stationary fixture of 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.

A kind of existing fiber-optic grating sensor, including frame sheet and be threaded through in frame sheet have grating optical fiber, frame Frame on piece is provided with welding groove, and the optical fiber at grating both ends is placed in above welding groove and fills solder, stretch light in welding groove It is cooling after solder is heated after fibre changes the wavelength of grating, it completes the welding of frame sheet and optical fiber completing encapsulation.It is this Grating is encapsulated in by fiber-optic grating sensor to be increased the intensity of optical fiber grating sensing and convenient constructs in engineering in frame sheet.

It needs after sensor encapsulation is completed by the variation and actual frame of wavelength shown by fiber-optic grating sensor The corresponding proportionality coefficient obtained between sensor and wavelength of the physical change of piece, by (FBG) demodulator learn fiber optic output wavelength it The deformation quantity of actual frame piece is learnt by proportionality coefficient afterwards, and then learns the deformation quantity of equipment measured by scene.

A kind of calibration platform of existing fiber-optic grating sensor, including move fixed station and determine fixed station, fiber grating is passed Sensor both ends, which are separately fixed at, dynamic fixed station and determines on fixed station, by making fixed station and to determine fixed station separate, to optical fiber light Gate sensor is stretched, and is measured dynamic fixed station by ranging rod and is determined the change in displacement between fixed station, logical with optical fiber The wavelength for crossing light compares, and obtains proportionality coefficient, achievees the purpose that fiber-optic grating sensor is calibrated.

But the frame sheet of fiber-optic grating sensor is not easy to be fixed on dynamic fixed station and determine on fixed station.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is that: it provides a kind of for calibrating consolidating for platform Clamp tool, fiber-optic grating sensor can be easily fixed on by it to be determined on fixed station and dynamic fixed station.

Above-mentioned technical purpose is achieved through the following technical solutions, a kind of for calibrating the stationary fixture of platform, including The mortgage plate being connected on fiber-optic grating sensor, and the mortgage group being connected on fiber-optic grating sensor for plate will to be mortgaged Part, the mortgage component includes the rotation axis fixed with calibration platform, and is rotatablely connected mortgage seat on the rotating shaft, described Mortgage seat is connected with jackscrew far from fiber-optic grating sensor threaded one end, and the mortgage plate is connected to mortgage seat bottom far from jackscrew One end.

Through the above technical solutions, seat will be mortgaged far from optical fiber grating sensing by fixed thread by rotation axis as fulcrum Device one end jacks up upwards, has downward active force to mortgage plate using mortgage seat as lever, it is made to be connected to fiber grating biography On sensor, and then it is fixed on calibration platform, simple to operate, good fixing effect.

Further, the rotation axis is rotatably connected to the calibration seat being fixed on calibration platform.

Through the above technical solutions, calibration seat is fixed on calibration platform, seat is calibrated by rotation axis relative calibration platform It is fixed.

Further, the section with mortgage one section of seat of the calibration seat are arranged in parallel.

Through the above technical solutions, the space that fixture occupies can be reduced, it is convenient for carrying, while calibrates seat and mortgaging seat and putting down Row setting can allow calibration seat to set the position for avoiding fiber-optic grating sensor encapsulation, reduce in use process, calibrate seat to school The influence of quasi- process.

Further, mortgage the distance between plate and rotation axis is less than the distance between rotation axis and jackscrew.

Through the above technical solutions, mortgage seat, rotation axis and mortgage plate, form lever, between jackscrew and rotation axis Distance is capable of forming greatly laborsaving lever, increases the active force between mortgage plate and sensor.

Further, the jackscrew is provided with rotating handles far from calibration platform one end.

Through the above technical solutions, rotating handles can facilitate the rotation to jackscrew, and then increase jackscrew and calibration platform Between interaction force.

Further, the mortgage plate is connect with mortgage seat lower rotation.

Through the above technical solutions, the surface of mortgage plate can be allowed to keep being attached on fiber-optic grating sensor, it is capable of increasing It mortgages contact of the plate with fiber-optic grating sensor and sees area, reduce mortgage plate under pressure to the damage of fiber-optic grating sensor It is bad.

Further, the mortgage seat is the mortgage seat being formed from steel.

Through the above technical solutions, the hardness of steel is higher, fixed effect is more preferable.

Further, the calibration seat is the calibration seat being formed from steel.

Through the above technical solutions, the hardness of steel is higher, fixed effect is more preferable.

The utility model has following technical effect that in summary

1, the utility model will mortgage seat far from optical fiber by fixed thread by laborsaving lever principle using rotation axis as fulcrum Grating sensor one end jacks up upwards, has downward active force to mortgage plate using mortgage seat as lever, it is made to be connected to light It on fiber grating sensor, and then is fixed on calibration platform, simple to operate, good fixing effect will；

2, the utility model is arranged in parallel by calibration seat and mortgage seat and rotation axis can be formed through fulcrum.

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 (8)

1. a kind of stationary fixture (8) for calibrating platform, it is characterised in that: including being connected on optical fiber (1) grating sensor Mortgage plate (83), and for the mortgage component that plate (83) is connected on optical fiber (1) grating sensor, the mortgage will to be mortgaged Component includes the rotation axis (81) fixed with calibration platform, and the mortgage seat (82) being rotatably connected on rotation axis (81), institute It states mortgage seat (82) to be connected with jackscrew (84) far from optical fiber (1) grating sensor threaded one end, the mortgage plate (83) is connected to Seat (82) bottom is mortgaged far from jackscrew (84) one end.

2. a kind of stationary fixture (8) for calibrating platform according to claim 1, it is characterised in that: the rotation axis (81) it is rotatably connected to the calibration seat (80) being fixed on calibration platform.

3. a kind of stationary fixture (8) for calibrating platform according to claim 2, it is characterised in that: the calibration seat (80) section is arranged in parallel with mortgage (82) one section of seat.

4. a kind of stationary fixture (8) for calibrating platform according to claim 3, it is characterised in that: mortgage plate (83) The distance between rotation axis (81) is less than the distance between rotation axis (81) and jackscrew (84).

5. a kind of stationary fixture (8) for calibrating platform according to claim 4, it is characterised in that: the jackscrew (84) calibration platform one end is provided with rotating handles.

6. a kind of stationary fixture (8) for calibrating platform according to claim 5, it is characterised in that: the mortgage plate (83) it is connect with mortgage seat (82) lower rotation.

7. a kind of stationary fixture (8) for calibrating platform according to claim 6, it is characterised in that: the mortgage seat (82) the mortgage seat (82) to be formed from steel.

8. a kind of stationary fixture (8) for calibrating platform according to claim 7, it is characterised in that: the calibration seat (80) the calibration seat (80) to be formed from steel.