CN104990564B - A kind of gumming device and method for improving fiber optic coils performance - Google Patents
A kind of gumming device and method for improving fiber optic coils performance Download PDFInfo
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- CN104990564B CN104990564B CN201510377574.5A CN201510377574A CN104990564B CN 104990564 B CN104990564 B CN 104990564B CN 201510377574 A CN201510377574 A CN 201510377574A CN 104990564 B CN104990564 B CN 104990564B
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- fiber optic
- optic coils
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- dipping tank
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
Abstract
The invention discloses a kind of gumming device and method for improving fiber optic coils performance, by the way that the fiber optic coils after coiling are integrally immersed in adhesive, coil inside air is removed using first vacuumizing, adhesive is uniformly pressed into the gum dipping process method in fiber optic coils by repressurization, after fiber optic coils are taken out after dipping and remove the adhesive of its excess surface, handled again with staged curing process and stress release, make that fiber optic coils fully solidify and stress fully discharges, obtain temperature performance and the excellent curing optical fiber gyro of shock resistance.After being solidified using the curing of the present invention to fiber optic coils, fiber optic coils are fixed by the adhesive bonds that its inner homogeneous is distributed turns into an entirety, the local deformation and strain of optical fiber are effectively reduced in the environment of temperature change and vibration, temperature and antivibration dynamic stability are effectively increased, meets the application requirement in high-precision field in optical fibre gyro.
Description
【Technical field】
The present invention relates to a kind of gumming device for improving fiber optic coils performance, and in particular to one kind improves fiber optic coils performance
Gumming device and method.
【Background technology】
Optical fibre gyro is a kind of angular speed fibre optical sensor for being based on Sagnac effect (Sagnac effects), mainly by light
Road and circuit part composition.Fiber optic coils are the core devices of fiber-optic gyroscope light path part, its temperature stabilization performance and anti-interference
Ability directly affects the performance of optical fibre gyro.Optical fiber is a kind of sensitive light path Transfer Medium, especially warm to the environment of application
The malformation of inside of optical fibre can all be caused by spending temperature change very sensitive with vibration environment, small and vibration, so as to influence
The transmittance process of light path, cause the generation of fiber optic coils nonreciprocal phase shift, ultimately result in gyro output signals and error occur.
Optical fibre gyro has obtained great development since 1976 come out.But optical fibre gyro is technically also present
A series of problems, these problems have impact on the precision and stability of optical fibre gyro, and then limit the popularity of its application.Mainly
Including：
(1) influence of temperature transient.In theory, two backpropagation light paths in ring interferometer are isometric, still
This only just strictly sets up when system does not change over time.It is demonstrated experimentally that the drift of phase error and speed of rotation measured value
Directly proportional to the time-derivative of temperature, this is extremely harmful, particularly during preheating.
(2) influence of vibration.Vibration can also have a strong impact on to measurement generation, it is necessary to use appropriate encapsulation to ensure optical fiber
The good robustness of coil, prevent the phenomenon of non synchronous vibration.
In order to improve the performance of gyro, component is formed there has been proposed various solutions, including to optical fibre gyro
Improve and the improvement of method with signal transacting etc..These methods largely improve the precision of optical fibre gyro and steady
It is qualitative can, at present some developed countries such as U.S., day, moral, method, meaning, Russia achieved in terms of the research of optical fibre gyro it is larger enter
Step, the gyro of low precision has been realized in commercialization in some, and a small number of high-precision products also begin to carry out equipment tune in the military
Examination.The research of China optical fibre gyro is relative to start late, but under the effort of vast researcher, progressively furthers
Gap between developed country.Domestic optical fibre gyro develops precision and has reached low required precision in inertial navigation system, has
A little technologies have been even up to the level of same kind of products at abroad.But domestic research still rests on laboratory stage mostly, does not have
To form product, in distance high-precision application also have gap.
【The content of the invention】
In view of the above-mentioned problems, the present invention provides a kind of gumming device and method for improving fiber optic coils performance, by by light
Fine coil is put into vacuum pressure impregnation tank body, first vacuumizes the air for removing coil inside, and adhesive is pressed into light by repressurization
Fine coil inside, the equally distributed adhesive solidification of coil inside is finally made using rational solidification and stress release process conditions
Shaping, the curing optical fiber coil that temperature and stability of vibration can be excellent is obtained, solve optical fiber gyroscope precision in the prior art and steady
The deficiency of qualitative energy.
The present invention provides a kind of gumming device for improving fiber optic coils performance, including：
For holding the dipping tank body of fiber optic coils；
Vacuum extractor, it includes vacuum valve, vavuum pump, and the vavuum pump is located at dipping tank body upper end, and the vavuum pump
With dipping tank body by pipeline communication, the vacuum valve is between vavuum pump and dipping tank body；
Pressue device, it includes pressurizing valve, air compressor, and the air compressor is somebody's turn to do located at dipping tank body upper end
Pressurizing valve passes through pipeline communication with dipping tank body；
Described plus adhesive dispenser includes：Plastic container, glue valve is inhaled, the plastic container is located at dipping tank body top and dipping
Tank body is connected by pipeline, and the suction glue valve is between plastic container and dipping tank body.
Particularly, in addition to：Least significant end and the agitator of plastic container top flush, the agitator lead to plastic container
Piping is connected, and the bottom of the dipping tank body is provided with circulating pump, and the circulating pump is connected with agitator by pipeline.
The present invention also provides a kind of method for improving fiber optic coils performance, comprises the following steps：
S1：Fiber optic coils are put into adhesive and soaked；
S2：Fiber optic coils after immersion are subjected to the processing that is heating and curing；
S3：Fiber optic coils after solidification are subjected to stress release processing, obtain high performance fiber optic coils.
Particularly, the step S1 is specifically implemented according to following steps：
S11：Adhesive is added 10~30min is stirred in mixer；Vacuum defoamation is put into after standing 10~20min afterwards
10~20min of deaeration in case, add afterwards in the plastic container on dipping tank body top, place 5~10min and wait and inhale glue；It is described
Mixing time is depending on adhesive viscosity, if mixing time is less than 10min, adhesive stirring can be caused uneven, so as to shadow
The uniformity of applying glue is rung, if mixing time is higher than 30min, temporal waste can be caused, so as to increase cost；The deaeration
Time depending on adhesive viscosity, can make bubble removing not to the utmost if 10min is less than when deaeration, so as to influence the uniform of applying glue
Property, if the de- time is higher than 20min, temporal waste can be caused, so as to increase cost；Because adhesive is in transfer process meeting
A small amount of air is mixed into, standing time is less than 5min, then can not eliminate new mixed air, if standing time is more than 10min,
Temporal waste can be caused, so as to increase cost；
S12：Fiber optic coils are placed on to the bottom of dipping tank body, after closing lid sealing, vavuum pump is opened and opens vacuum valve
Dipping tank interior is vacuumized, continues to vacuumize 2~4h after vacuum reaches 10-2~130Pa；Top is opened afterwards to connect
The suction glue valve of plastic container is connect, adhesive is slowly injected into dipping tank body until being totally submerged fiber optic coils；Close afterwards and inhale glue
Valve, tank body is continued after vacuumizing 0.5~1h, close vacuum pumping valve, opened air compressor and open pressurizing valve, to impregnating autoclave
Body 2~5h of internal pressurization, make pressure limit control in 0.4~0.8MPa；In step S12, vacuum pressure is more low better, if high
In 130Pa, then the air inside fiber optic coils can be made to be difficult to extract totally, so as to influence the solidification of fiber optic coils, pass through continuation
2~4h is vacuumized, can further extract the air inside fiber optic coils, is done so that the air inside fiber optic coils removes
Only；Tank interior pressure will influence the infiltration of adhesive, if tank interior pressure is less than 0.4MPa, can penetrate into adhesive
Difficulty inside fiber optic coils is big, is unfavorable for dipping thoroughly, if being higher than 0.8MPa, can influence the arrangement of optical fiber, causes non-mutual
Easy phase shift.
S13：Taken out after fiber optic coils are soaked into 2~4h under conditions of step S12；If soak time is less than 2h, can make
Adhesive infiltration is insufficient, higher than 4h, can cause temporal waste.
Particularly, the adhesive is one kind in silicone rubber adhesive, epoxyn, and the silicon rubber is gluing
Agent modulus is 1~10MPa, glass transition temperature≤- 50 DEG C；The epoxyn modulus is 500~1000MPa,
Glass transition temperature >=80 DEG C；Because the operating temperature of fiber optic coils is -50~80 DEG C, therefore glass transition temperature Ying Gong
Make outside temperature range, just can guarantee that the modulus of elasticity of adhesive when being used in operating temperature section will not occur obvious play
Strong change, so as to avoid the increase of nonreciprocal phase shift.
Particularly, the step S2 is specifically implemented according to following steps：
S21：Fiber optic coils after the completion of dipping are taken out from dipping tank body, remove the adhesive of excess surface；
S22：Step S21 is removed to the fiber optic coils after surface adhesive and solidifies 8~16h at normal temperatures, makes coil inside
Adhesive surface drying solidification；The solidification of fiber optic coils subsequent high temperature can just be made after surface drying solidification to reduce solidification internal stress, in the step
In, hardening time is less than 8h, then can not carry out surface drying solidification or surface drying solidification is not thorough, hardening time is higher than 16h, consolidates in surface drying
Temporal waste is caused while changing thorough；
S23：Fiber optic coils after step S22 processing are put into incubator and are heating and curing, solidify 8~12h at 30~40 DEG C, then
Temperature is risen to 60 DEG C with 0.5~2 DEG C/min heating rate and is incubated 0.5~8h, then again with 0.5~2 DEG C/min liter
Temperature is risen to 80 DEG C and is incubated 1~4h by warm speed, and temperature then is risen into 80 DEG C with 0.5~2 DEG C/min heating rate again
And 1~4h is incubated, 60 DEG C are dropped to by 0.5~2 DEG C/min speed afterwards, continues 0.5~1h at 60 DEG C, afterwards by 0.5~2
DEG C/min speed continues to be down to 30 DEG C, fiber optic coils are taken out afterwards；It is Slow curing with reduction from low temperature first in the step
Solidification internal stress, initial solidification temperature should not be higher than 40 DEG C, if while the low-temperature setting time it is too short just carry out hot setting, it will produce
Raw larger solidification internal stress meeting, so as to influence the temperature performance of fiber optic coils；In the present invention, Cooling rate regards different gluing
Depending on agent, because silicone rubber adhesive soaking time is grown, epoxide-resin glue soaking time is short, if therefore gluing from silicon rubber
Agent, then high Cooling rate is selected, if from the larger epoxyn of fragility, from low Cooling rate.
Particularly, the adhesive is UV radiation-curable epoxy acrylate resin adhesive, the ultraviolet cured epoxy
Acrylic resin adhesive modulus is 200~2000MPa, and glass transition temperature is at >=80 DEG C；Adhesive modulus can influence light
The performance of fine coil, if modulus is less than 200MPa, it is easily deformed after fiber optic coils solidification, if modulus is higher than 2000MPa, can makes
Solidification internal stress increases, so as to influence the temperature performance of fiber optic coils.
Particularly, the step S2 is specifically implemented according to following steps：
S021：Fiber optic coils after the completion of dipping are taken out from dipping tank body, remove the adhesive of excess surface；
S022：Step S021 is removed to the fiber optic coils after surface adhesive and places 8~16h at normal temperatures, makes optical fiber cable
Adhesive inside circle reaches Stable distritation；In step S022, hardening time is less than 8h, then adhesive is inside fiber optic coils
Stable distritation can not be reached, hardening time is higher than 16h, and temporal waste is caused while adhesive is distributed stable；Treat glue
Stick Stable distritation is behind fiber optic coils inside, by ultra-violet curing to increase adhesive being evenly distributed inside fiber optic coils
Property, so as to reduce solidification internal stress；
S023：Fiber optic coils after step S022 processing are put into ultra-violet curing case and solidified, first in 50~200W ultraviolet lights
3~10min of lower irradiation, close uviol lamp and wait 10~20min after the temperature in ultraviolet case is cooled to room temperature, then adjust ultraviolet
Luminous power to 250~500W high power ultraviolet lights continue 3~5min of irradiation, close uviol lamp and wait 10~20min, then with 250
3~5min of~500W ultraviolet lights, such iterative cycles irradiate 5~10 times, until adhesive is completely solid inside fiber optic coils
Change；In the step, slowly solidified from small-power (50~200W) purple light first, to reduce solidification internal stress, if power is less than
50W, then it is difficult to curing reaction occurs, if higher than 200, curing rate can be made too fast and do not reach the mesh of reduction solidification internal stress
, so as to influence the performance of fiber optic coils；Afterwards by improving power, make ultraviolet cured epoxy acrylic acid inside fiber optic coils
Resin adhesive fully solidifies, so as to reach the purpose being fully cured；Iterative cycles irradiate 5~10 times afterwards, can be further
The solidification of UV radiation-curable epoxy acrylate resin adhesive inside fiber optic coils is improved, so as to improve the performance of fiber optic coils；
And the irradiation time of ultraviolet light is too short in each stage, will all fiber optic coils is not reached solidification effect, if irradiation time mistake
It is long, then uviol lamp heating can be made excessive and reduced the uviol lamp life-span.
Particularly, the step S3 is specifically implemented according to following steps：
S31：Fiber optic coils after solidification are put into high-low temperature chamber, carry out the release of Googol motion controller according to the following steps
Processing：
S32：- 45 DEG C are cooled to 0.5~2 DEG C/min rate of temperature fall, 4~8h is incubated at -45 DEG C, then again with 0.5
~2 DEG C/min heating rate is warming up to 70 DEG C, 4~8h is incubated at 70 DEG C, then cool with 0.5~2 DEG C/min rate of temperature fall
To -45 DEG C, 4~8h is incubated at -45 DEG C, such high/low temperature circulation stores 2~5 times；In the step, rate of temperature fall and heating speed
Rate is depending on adhesive type, and wherein silicone rubber adhesive selects quick changeable temperature, epoxyn, ultraviolet light solidification ring
Oxypropylene acid resin adhesive then selects low Cooling rate, if rate of temperature fall and heating rate changed the slow stress that will not reach and released
The effect put, if rate of temperature fall and the too fast fiber optic coils that will cause after solidification of heating rate change are cracked, so as to shadow
Ring the performance of fiber optic coils；Same soaking time is depending on adhesive type, and silicone rubber adhesive soaking time is short, epoxy resin
Then soaking time is grown for adhesive, UV radiation-curable epoxy acrylate resin adhesive, and sufficient soaking time can be only achieved stress
The effect of release；
S33：Cool to -45 DEG C with 0.5~2 DEG C/min rate of temperature fall, -45 DEG C be incubated 10~20min, then again with
0.5~2 DEG C/min heating rate is warming up to 70 DEG C, and 10~20min, then the cooling speed with 0.5~2 DEG C/min are incubated at 70 DEG C
Rate cools to -45 DEG C, and 10~20min is incubated at -45 DEG C, and such high/low temperature circulation stores 30~60 times, obtains high-performance optical fiber
Coil；Circulation storage number in step S31, S32 adjusts according to adhesive type and fiber optic coils diameter；Fiber optic coils
Diameter is small, and the thickness of solidification glue is also small, therefore the temperature cycle times of stress release are also corresponding few, but is at least no less than
30 times, otherwise not reaching stress release effect, also big thickness is bigger for opposite diameter, and cycle-index also should be more, but at most not
More than 60 times；If from silicone rubber adhesive, cycle-index is few, if from epoxyn, ultraviolet cured epoxy
Then cycle-index is more for acrylic resin adhesive, does not otherwise reach stress release effect.
The present invention also provides a kind of high-performance optical fiber coil prepared using said apparatus and method.
Compared with prior art, a kind of gumming device and method for improving fiber optic coils performance provided by the invention, has
Following beneficial effect is：
(1) air inside removing fiber optic coils is first vacuumized, adhesive is pressed into coil inside, makes adhesive by repressurization
Uniformly be distributed in inside fiber optic coils, so as to improve solidification after fiber optic coils temperature stabilization performance and shock resistance；
(2) staged heat cure and stage ultra-violet curing technology are used, is effectively reduced caused by solidification process
The thermal stress of shrinkage stress, bond stress and temperature change residual, then become slowly by the storage of rational high/low temperature and high/low temperature
The solidification internal stress for the solidification process residual that crash handling technique fully discharges, the temperature for further increasing curing optical fiber coil are steady
Qualitative energy and shock resistance；
(3) cured adhesive selected by meets temperature, power after the operation of fiber optic coils impregnation curing process and solidification simultaneously
The double requirements of performance are learned, and different types of adhesive is applied to the optical fibre gyro requirement of different application environment, low modulus silicon
The fiber optic coils of rubber based adhesives solidification are applied to the application requirement of aeronautical field high-precision optical fiber gyro, and high-modulus asphalt mixtures modified by epoxy resin
The application requirement of low precision tactical weapon model optical fibre gyro during the fiber optic coils of fat adhesive solidification are applied to, for high-modulus
UV radiation-curable epoxy acrylate resin adhesive then meets to require high high-precision model light to temperature performance and vibration performance
The application requirement of fine gyro, and use the temperature stabilization performance of the fiber optic coils after the processing of these solidification glues and shock resistance equal
The demand of application field where reaching；
(4) apparatus structure provided by the invention is simple and convenient to operate, the fiber optic coils function admirable after impregnation, and can be with
Multiple fiber optic coils are glued simultaneously, are more easy to realize that industrialized large-scale production requires.
In summary, apparatus structure provided by the invention is simple and convenient to operate, is easy to spread, and preparation method is simple and easy,
The fiber optic coils prepared using device and method provided by the invention possess excellent temperature and shock resistance.
【Brief description of the drawings】
Fig. 1 is a kind of gumming device structural representation for improving fiber optic coils performance of the present invention；
Fig. 2 is using a kind of vibration performance pair for the method fiber optic coils before and after the processing for improving fiber optic coils performance of the present invention
Than figure；
Fig. 3 be using the present invention it is a kind of improve fiber optic coils performance method processing after fiber optic coils under high vibration magnitude
Output signal diagram.
【Embodiment】
To have further understanding to the purpose of the present invention, function and technological means, in conjunction with drawings and Examples to this
Detailed description of the invention is as follows.
Referring to Fig. 1, the present invention provides a kind of gumming device for improving fiber optic coils performance, including：
For holding the dipping tank body 1 of fiber optic coils 5；
Vacuum extractor, it includes vacuum valve 2, vavuum pump 7, and the vavuum pump 7 is located at dipping tank body 1 upper end, and this is true
Empty pump 7 is with dipping tank body 1 by pipeline communication, and the vacuum valve 2 is between vavuum pump 7 and dipping tank body 1；
Pressue device, it includes pressurizing valve 3, air compressor 8, and the air compressor 8 is located at dipping tank body 1 upper end,
And the pressurizing valve 3 passes through pipeline communication with dipping tank body 1；
Described plus adhesive dispenser includes：Plastic container 9, inhale glue valve 4, the plastic container 9 located at dipping tank body 1 top, with
Dipping tank body 1 is connected by pipeline, and the suction glue valve 4 is between plastic container 9 and dipping tank body 1.
Particularly, if the adherent after use directly abandons, cost can be caused to increase, and dealing with improperly can cause environment dirty
Dye, thus originally release including：Least significant end and the agitator 6 of the top flush of plastic container 9, the agitator 6 are logical with plastic container 9
Piping is connected, and the bottom of the dipping tank body 1 is provided with circulating pump 10, and the circulating pump 10 is connected with agitator 6 by pipeline
It is logical, after immersion terminates, adherent is pumped into agitator 6 by circulating pump 10, agitator 6 is further stirred adherent
Mix, it is stand-by to be delivered to plastic container 9 afterwards.
The present invention also provides a kind of method for the gumming device for improving fiber optic coils performance, wherein the silicone rubber adhesive
(50~100) are pressed for the polysiloxanes containing vinyl, the dimethyl polysiloxane containing Si -- H bond, platinum catalyst：(50~
100)：(0.8~1.6) proportioning forms, if platinum catalyst ratio is too high, curing rate is quickly, it is impossible to meets experimental implementation
Time；Too low curing rate again can be too slow, it is difficult to is fully cured；The epoxyn is epoxy resin prepolymer, amine
Class curing agent or anhydride curing agent press 100：(10~30) carry out proportioning and formed, wherein epoxy resin prepolymer, amine curing agent
Or the proportioning of anhydride curing agent is depending on curing agent species：Curing agent content is too high, and curing rate is fast, and solidification internal stress is big；It is too small
Curing rate is slow, hardening time length, preferred proportion 100 of the present invention：10~30 can meet fiber optic coils solidification internal stress and time
Requirement, the method mentioned of the present invention is further explained below in conjunction with specific embodiment, wherein, embodiment 1 and implement
Example 2 is to prepare fiber optic coils using silicone rubber adhesive, and embodiment 3 and embodiment 4 are to prepare light using epoxyn
Fine coil, embodiment 5 and embodiment 6 are to prepare fiber optic coils using UV radiation-curable epoxy acrylate resin adhesive.
First, silicone rubber adhesive prepares fiber optic coils：
Embodiment 1:
By 100 parts of polysiloxanes containing vinyl, 100 parts of dimethyl polysiloxanes containing Si -- H bond, 1.6 parts of platinums
Catalyst is added in beaker, is placed on high-intensity magnetic agitator and is sufficiently stirred 10min, and vacuum defoamation case is put into after standing 15min
Middle deaeration 20min, it is then transferred into the plastic container on dipping tank body top, places 10min and wait and inhale glue.
The fiber optic coils for treating impregnation are placed on to the bottom of vacuum pressure impregnation tank body, vavuum pump is opened simultaneously after closing lid sealing
Open vacuum valve to vacuumize tank interior, continue to vacuumize 2h after vacuum reaches below 100Pa, then open top
The suction glue valve of plastic container is connected, adhesive is slowly sucked to tank base until being totally submerged fiber optic coils, closes and inhales glue
Valve, tank body is continued after vacuumizing 1h, close vacuum-pumping valve, opened air compressor and open pressurization valve, to tank body
Internal pressurization 2h, pressure limit are controlled in 0.8MPa.
Fiber optic coils after the completion of dipping take out from tank interior, after the adhesive for removing excess surface, carry out staged
Curing process flow：8h ambient temperature curing first, after the silicone rubber adhesive surface drying solidification of coil inside, place into incubator
It is heating and curing, first solidifies 8h under conditions of 30 DEG C, then temperature is risen to 60 DEG C with 2 DEG C/min heating rate and is incubated 2h,
Then temperature is risen to 80 DEG C with 1 DEG C/min heating rate again and is incubated 4h, finally delayed temperature with 0.5 DEG C/min speed
It is slow to be down to 30 DEG C, open incubator and take out fiber optic coils.
Fiber optic coils after solidification are put into high-low temperature chamber, carry out lower stress release processing by the following method：
- 45 DEG C are cooled to 2 DEG C/min rate of temperature fall first, 4h is incubated at -45 DEG C, then again with 2 DEG C/min liter
Warm speed is warming up to 70 DEG C, and 4h is incubated at 70 DEG C, then cools to -45 DEG C with 2 DEG C/min rate of temperature fall, and 4h is incubated at -45 DEG C,
Such high/low temperature circulation is stored 2 times, while cycle-index is adjusted according to the fiber optic coils of different-diameter；
Secondly, -45 DEG C are cooled to 2 DEG C/min rate of temperature fall, 10min is incubated at -45 DEG C, then again with 2 DEG C/min
Heating rate be warming up to 70 DEG C, 10min are incubated at 70 DEG C, then with 2 DEG C/min rate of temperature fall cool to -45 DEG C, at -45 DEG C
10min is incubated, such high/low temperature circulation is stored 30 times, while cycle-index is adjusted according to the fiber optic coils of different-diameter,
Fiber optic coils are taken out afterwards, test whether its performance reaches requirement, if it is not, then continue to carry out stress release according to the method described above,
Untill fiber optic coils performance reaches requirement, if so, then end-of-job, is prepared high-performance optical fiber coil.
Embodiment 2:
50 parts of A are contained into the polysiloxanes of vinyl, 50 parts of dimethyl polysiloxanes containing Si -- H bond, 0.8 part of platinum
Catalyst is added in beaker, is placed on high-intensity magnetic agitator and is sufficiently stirred 18min, and vacuum defoamation case is put into after standing 13min
Middle deaeration 16min, it is then transferred into the plastic container on dipping tank body top, places 8min and wait and inhale glue.
The fiber optic coils for treating impregnation are placed on to the bottom of vacuum pressure impregnation tank body, vavuum pump is opened simultaneously after closing lid sealing
Open vacuum valve to vacuumize tank interior, continue to vacuumize 4h after vacuum reaches 10-2Pa, then open top and connect
The suction glue valve of plastic container is connect, adhesive is slowly sucked to tank base until being totally submerged fiber optic coils, closes and inhales glue valve
Door, continues after vacuumizing 0.5h to tank body, closes vacuum-pumping valve, opens air compressor and opens pressurization valve, to tank body
Internal pressurization 2h, pressure limit are controlled in 0.4MPa.
Fiber optic coils after the completion of dipping take out from tank interior, after the adhesive for removing excess surface, carry out staged
Curing process flow：It is ambient temperature curing first 10 hours, after the silicone rubber adhesive surface drying solidification of coil inside, place into temperature
It is heating and curing in case, first solidifies 12h at 35 DEG C, then temperature is risen to 60 DEG C with 1 DEG C/min heating rate and is incubated 4h, then
Temperature is risen to 80 DEG C with 2 DEG C/min heating rate again and is incubated 2h, drops to 60 DEG C by 2 DEG C/min speed afterwards,
60 DEG C of lasting 1h, continue to be down to 30 DEG C afterwards by 2 DEG C/min speed, open incubator and take out fiber optic coils.
Fiber optic coils after solidification are put into high-low temperature chamber, carry out lower stress release processing by the following method：
First, -45 DEG C are cooled to 1.5 DEG C/min rate of temperature fall, 6h is incubated at -45 DEG C, then again with 1.5 DEG C/min
Heating rate be warming up to 70 DEG C, 6h are incubated at 70 DEG C, then with 1.5 DEG C/min rate of temperature fall cool to -45 DEG C, at -45 DEG C
6h is incubated, such high/low temperature circulation is stored 3 times, while cycle-index is adjusted according to the fiber optic coils of different-diameter；
Secondly, -45 DEG C are cooled to 1 DEG C/min rate of temperature fall, 12min is incubated at -45 DEG C, then again with 1 DEG C/min
Heating rate be warming up to 70 DEG C, 12min are incubated at 70 DEG C, then with 1 DEG C/min rate of temperature fall cool to -45 DEG C, at -45 DEG C
12min is incubated, so repeatedly, is circulated by multiple high/low temperature, circulation storage number is at 35 times, while cycle-index is according to difference
The fiber optic coils of diameter are adjusted, and take out fiber optic coils afterwards, test whether its performance reaches requirement, if it is not, then continue by
Stress release is carried out according to the above method, untill fiber optic coils performance reaches requirement, if so, then end-of-job, is prepared
High-performance optical fiber coil.
2nd, epoxy resin glue adhesive agent solidifies to the impregnation of fiber optic coils：
Embodiment 3：
100 parts of epoxy resin prepolymer compounds, 10 parts of anhydride curing agents are added in beaker, are placed on high-intensity magnetic stirring
20min is sufficiently stirred on device, deaeration 15min in vacuum defoamation case is put into after standing 20min, is then transferred on dipping tank body 1
In the plastic container 9 in portion, place 20min and wait and inhale glue.
The fiber optic coils 5 for treating impregnation are placed on to the bottom of vacuum pressure impregnation tank body 1, vavuum pump is opened after closing lid sealing
7 and open vacuum valve 2 tank interior is vacuumized, continue to vacuumize 3h after vacuum reaches below 50Pa, then open
Top connects the suction glue valve 4 of plastic container 9, and adhesive is slowly sucked to tank base until being totally submerged fiber optic coils 5, closed
Close and inhale glue valve 4, tank body is continued after vacuumizing 0.8h, close vacuum-pumping valve 2, open air compressor 8 and open pressurization
Valve 3, pressurizeed 2h to tank interior, and pressure limit is controlled in 0.6MPa.
Fiber optic coils after the completion of dipping take out from tank interior, after the adhesive for removing excess surface, carry out staged
Curing process flow：It is ambient temperature curing first 16 hours, after the epoxyn surface drying solidification of coil inside, place into
It is heating and curing in incubator, curing process is carried out using following methods：
First after 40 DEG C solidify 8h, then with 0.5 DEG C/min speed 60 DEG C are warming up to, in 60 DEG C of lasting insulations
0.5min, 80 DEG C then are continued to rise to by this speed, are persistently incubated 1h, drop to 60 DEG C by 0.5 DEG C/min speed afterwards,
In 60 DEG C of lasting 0.5h, continue to be down to 30 DEG C by 0.5 DEG C/min speed afterwards；
Secondly, 60 DEG C are warming up to 1 DEG C/min speed since 30 DEG C, continue 0.8h at 60 DEG C, then by this speed
80 DEG C are continued to rise to, continues 1h, drops to 60 DEG C by this speed, in 60 DEG C of lasting 60min, is further continued for being down to 30 by this speed
DEG C, open incubator and take out fiber optic coils.
Fiber optic coils after solidification are put into high-low temperature chamber, carry out lower stress release processing by the following method：
- 45 DEG C are cooled to 0.5 DEG C/min rate of temperature fall first, 8h is incubated at -45 DEG C, then again with 0.5 DEG C/min
Heating rate be warming up to 70 DEG C, 8h are incubated at 70 DEG C, then with 0.5 DEG C/min rate of temperature fall cool to -45 DEG C, at -45 DEG C
8h is incubated, such high/low temperature circulation is stored 5 times, while cycle-index is adjusted according to the fiber optic coils of different-diameter；
Secondly, cool to -45 DEG C with 0.5 DEG C/min rate of temperature fall, -45 DEG C be incubated 20min, then again with 0.5 DEG C/
Min heating rate is warming up to 70 DEG C, and 20min is incubated at 70 DEG C, then cools to -45 DEG C with 0.5 DEG C/min rate of temperature fall,
20min is incubated at -45 DEG C, such high/low temperature circulation stores 60 times, while cycle-index adds according to the fiber optic coils of different-diameter
With adjustment, fiber optic coils are taken out afterwards, test whether its performance reaches requirement, if it is not, then continuing to be answered according to the method described above
Power discharges, untill fiber optic coils performance reaches requirement, if so, then end-of-job, is prepared high-performance optical fiber coil.
Embodiment 4：
100 parts of epoxy resin prepolymer compounds, 30 parts of amine curing agents are added in beaker, are placed on high-intensity magnetic stirring
30min is sufficiently stirred on device, deaeration 10min in vacuum defoamation case is put into after standing 10min, is then transferred on dipping tank body 1
In the plastic container 9 in portion, place 8min and wait and inhale glue.
The fiber optic coils 5 for treating impregnation are placed on to the bottom of vacuum pressure impregnation tank body 1, vavuum pump is opened after closing lid sealing
7 and open vacuum valve 2 tank interior is vacuumized, continue to vacuumize 2.5h after vacuum reaches below 80Pa, then beat
The suction glue valve 4 of top connection plastic container 9 is opened, adhesive is slowly sucked to tank base until being totally submerged fiber optic coils 5,
Glue valve 4 is inhaled in closing, and tank body is continued after vacuumizing 0.7h, closes vacuum-pumping valve 2, opens air compressor 8 and opening adds
Pressure valve 3, pressurizeed 4h to tank interior, and pressure limit is controlled in 0.5MPa.
Fiber optic coils after the completion of dipping take out from tank interior, after the adhesive for removing excess surface, carry out staged
Curing process flow：It is ambient temperature curing first 16 hours, after the epoxyn surface drying solidification of coil inside, place into
It is heating and curing in incubator, first solidifies 8h at 35 DEG C, then temperature is risen to 70 DEG C with 1 DEG C/min heating rate and is incubated 6h, so
Temperature is risen to 80 DEG C with 1.5 DEG C/min heating rate again afterwards and is incubated 1~4h, then with 0.5 DEG C/min heating rate
Temperature is slowly dropped to normal temperature, incubator is opened and takes out fiber optic coils.
Fiber optic coils after solidification are put into high-low temperature chamber, carry out lower stress release processing by the following method：
The rate of temperature fall of 1 DEG C/min first cools to -45 DEG C, 7h is incubated at -45 DEG C, then again with 1 DEG C/min heating
Speed is warming up to 70 DEG C, and 7h is incubated at 70 DEG C, then cools to -45 DEG C with 1 DEG C/min rate of temperature fall, is incubated 7h at -45 DEG C, such as
This high/low temperature circulation storage 4 times, while cycle-index is adjusted according to the fiber optic coils of different-diameter；
Secondly, cool to -45 DEG C with 0.8 DEG C/min rate of temperature fall, -45 DEG C be incubated 15min, then again with 0.8 DEG C/
Min heating rate is warming up to 70 DEG C, and 15min is incubated at 70 DEG C, then cools to -45 DEG C with 0.8 DEG C/min rate of temperature fall,
15min is incubated at -45 DEG C, such high/low temperature circulation stores 45 times, while cycle-index adds according to the fiber optic coils of different-diameter
With adjustment, fiber optic coils are taken out afterwards, test whether its performance reaches requirement, if it is not, then continuing to be answered according to the method described above
Power discharges, untill fiber optic coils performance reaches requirement, if so, then end-of-job, is prepared high-performance optical fiber coil.
3rd, UV radiation-curable epoxy acrylate resin adhesive prepares fiber optic coils：
Embodiment 5：
The ultraviolet adhesive of 300g epoxy acrylic resins is poured into the plastic container 9 on dipping tank body 1 top, place 6min
Wait and inhale glue.
The fiber optic coils 5 for treating impregnation are placed on to the bottom of vacuum pressure impregnation tank body 1, vavuum pump is opened after closing lid sealing
7 and open vacuum valve 2 tank interior is vacuumized, continue to vacuumize 2~4h after vacuum reaches below 10Pa, then beat
The suction glue valve 4 of top connection plastic container 9 is opened, adhesive is slowly sucked to tank base until being totally submerged fiber optic coils 5,
Close and inhale glue valve 4, tank body is continued after vacuumizing 2h, close vacuum-pumping valve 2, open air compressor 8 and open pressurization
Valve 3, pressurizeed 3h to tank interior, and pressure limit is controlled in 0.6MPa.
Fiber optic coils after the completion of dipping take out from tank interior, after the adhesive for removing excess surface, carry out stage
Ultraviolet radiation-curable technological process：8h is placed under normal temperature first, treats the epoxy acrylic resin adhesive distribution of coil inside
After stable, place into ultra-violet curing case and solidify, 10min is first irradiated under 200W ultraviolet lights, close uviol lamp and wait 20min to treat
After temperature in ultraviolet case is cooled to room temperature, then adjusts uv power and continue to irradiate 5min to 500W, close uviol lamp and wait
20min, then irradiated 10 times with 500W ultraviolet lights 5min, such iterative cycles, until adhesive is complete inside fiber optic coils
Solidification.
Fiber optic coils after solidification are put into high-low temperature chamber, with implementing 1 identical stress release technique, solidified
The release of residual stress, obtain the curing optical fiber coil of excellent performance.
Embodiment 6：
The ultraviolet adhesive of 300g epoxy acrylic resins is poured into the plastic container 9 on dipping tank body 1 top, place 7min
Wait and inhale glue.
The fiber optic coils 5 for treating impregnation are placed on to the bottom of vacuum pressure impregnation tank body 1, vavuum pump is opened after closing lid sealing
7 and open vacuum valve 2 tank interior is vacuumized, continue to vacuumize 4h after vacuum reaches below 10Pa, then open
Top connects the suction glue valve 4 of plastic container 9, and adhesive is slowly sucked to tank base until being totally submerged fiber optic coils 5, closed
Close and inhale glue valve 4, tank body is continued after vacuumizing 4h, close vacuum-pumping valve 2, open air compressor 8 and open pressurizing valve
Door 3, pressurize 3h to tank interior, and pressure limit controls in 0.6MPa, then repeats to vacuumize tank body 4h, repressurization 3h, such as
This vacuumizes-pressurizes-repetitive process of pressure release, cycle-index 3~5 times, until epoxy acrylic resin adhesive uniformly immerses
Inside fiber optic coils, the impregnation of fiber optic coils is completed.
Fiber optic coils after the completion of dipping take out from tank interior, after the adhesive for removing excess surface, carry out stage
Ultraviolet radiation-curable technological process：8h is placed under normal temperature first, treats the epoxy acrylic resin adhesive distribution of coil inside
After stable, place into ultra-violet curing case and solidify, 3min is first irradiated under 50W ultraviolet lights, close uviol lamp and wait 10min to treat purple
After temperature in outer container is cooled to room temperature, then adjusts uv power and continue to irradiate 3min to 250W, close uviol lamp and wait
10min, then irradiated 5 times with 250W ultraviolet lights 3min, such iterative cycles, until adhesive is completely solid inside fiber optic coils
Change.
Fiber optic coils after solidification are put into high-low temperature chamber, with implementing 3 identical stress release techniques, solidified
The release of residual stress, obtain the curing optical fiber coil of excellent performance.
The fiber optic coils performance prepared below by way of performance test to the present invention is explained, if table 1 below is not locate
The fiber optic coils of reason and the vibration performance data comparison of the fiber optic coils prepared using apparatus of the present invention and method, Fig. 2 is use
A kind of vibration performance comparison diagram for the method fiber optic coils before and after the processing for improving fiber optic coils performance of the present invention.
Table 1
From table 1 and Fig. 2, the fiber optic coils after being handled using method provided by the invention, the vibratility in three directions
Can all it have clear improvement, for center of percussion deviation value (center of percussion is poor) all within 1 °/h, deviation value have dropped 2 orders of magnitude；In addition, this hair
The device and preparation method of bright offer, for the larger fiber optic coils repair of vibration noise clearly, using the present invention
Method processing after fiber optic coils, its vibration noise within 100 °/h, so as to reduce or reduce vibration to optical fiber
Influenceed caused by coil.
In addition, using the fiber optic coils after the method processing of the present invention, under -50~80 DEG C, 2 DEG C/min temperature variable Rates
Bias drift is better than 2.5 °/h, and test result is as shown in Figure 2；Center of percussion deviation value under 13.2g and 18.7g vibration environments is less than
2 °/h, the application requirement of middle high-precision optical fiber gyro is fully met, as shown in Table 2 and Figure 3, Fig. 3 is using this hair to test result
Output signal diagram of the optical fibre gyro under high vibration magnitude after a kind of bright method processing for improving fiber optic coils performance, wherein Fig. 3
In, a, b, c are respectively fiber optic coils X, Y, output signal diagram of Z-direction under high vibration magnitude.
Table 2
In summary, the fiber optic coils prepared using device and method provided by the invention, its temperature stability and antivibration
Dynamic performance is greatly improved, and its performance is further improved, application field is more extensive.
It should be noted that present invention implementation described above can only all be considered the description of the invention, and can not limit
The present invention, claims indicate the scope of the present invention, and embodiment does not point out the scope of the present invention, therefore, with this
Any change in claims of invention suitable implication and scope, is all considered as the scope for being included in claims
It is interior.
Claims (8)
- A kind of 1. gumming device for improving fiber optic coils performance, it is characterised in that including：For holding the dipping tank body (1) of fiber optic coils (5)；Vacuum extractor, it includes vacuum valve (2), vavuum pump (7), and the vavuum pump (7) is located at dipping tank body (1) upper end, and The vavuum pump (7) is with dipping tank body (1) by pipeline communication, and the vacuum valve (2) is located at vavuum pump (7) and dipping tank body (1) Between；Pressue device, it includes pressurizing valve (3), air compressor (8), and the air compressor (8) is on dipping tank body (1) End, and the pressurizing valve (3) passes through pipeline communication with dipping tank body (1)；Add adhesive dispenser, including：Plastic container (9), inhale glue valve (4), the plastic container (9) located at dipping tank body (1) top, with Dipping tank body (1) is connected by pipeline, and the suction glue valve (4) is between plastic container (9) and dipping tank body (1)；Wherein, when will dipping tank body close lid sealing after, open vavuum pump and open vacuum valve to dipping tank interior vacuumize when, The vacuum of dipping tank body can reach 10-2Pa；When opening air compressor and opening pressurizing valve, to dipping tank interior pressurization When, 0.8MPa can be reached by impregnating the pressure of tank body.
- 2. a kind of gumming device for improving fiber optic coils performance according to claim 1, it is characterised in that also include：Most The agitator (6) of low side and plastic container (9) top flush, the agitator (6) are connected with plastic container (9) by pipeline Logical, the bottom of the dipping tank body (1) is provided with circulating pump (10), and the circulating pump (10) is connected with agitator (6) by pipeline.
- A kind of 3. method for improving fiber optic coils performance, it is characterised in that comprise the following steps：S1：Fiber optic coils are put into adhesive and soaked；S2：Fiber optic coils after immersion are subjected to the processing that is heating and curing；S3：Fiber optic coils after solidification are subjected to stress release processing, obtain high performance fiber optic coils；The step S1 is specifically implemented according to following steps：S11：Adhesive is added 10~30min is stirred in agitator；It is put into after standing 10~20min afterwards in vacuum defoamation case 10~20min of deaeration, add afterwards in the plastic container on dipping tank body top, place 5~10min and wait and inhale glue；S12：Fiber optic coils are placed on to the bottom of dipping tank body, after closing lid sealing, vavuum pump is opened and opens vacuum valve to leaching Stain tank interior vacuumizes, when vacuum reaches 10-2Continue to vacuumize 2~4h after~130Pa；Top connection is opened afterwards contains glue The suction glue valve of container, adhesive is slowly injected into dipping tank body until being totally submerged fiber optic coils；Close afterwards and inhale glue valve, to tank Body continues after vacuumizing 0.5~1h, closes vacuum valve, opens air compressor and opens pressurizing valve, and dipping tank interior is added 2~5h is pressed, makes pressure limit control in 0.4~0.8MPa；S13：Taken out after fiber optic coils are soaked into 2~4h under conditions of step S12.
- 4. a kind of method for improving fiber optic coils performance according to claim 3, it is characterised in that the adhesive is silicon One kind in rubber based adhesives, epoxyn, the silicone rubber adhesive modulus are 1~10MPa, glass transition temperature ≤ -50 DEG C of degree；The epoxyn modulus is 500~1000MPa, glass transition temperature >=80 DEG C.
- 5. a kind of method for improving fiber optic coils performance according to claim 4, it is characterised in that the step S2 is specific Implement according to following steps：S21：Fiber optic coils after the completion of dipping are taken out from dipping tank body, remove the adhesive of excess surface；S22：Step S21 is removed to the fiber optic coils after surface adhesive and solidifies 8~16h at normal temperatures, makes the glue of coil inside Stick surface drying solidifies；S23：Fiber optic coils after step S22 processing are put into incubator and are heating and curing, in 30~40 DEG C of 8~12h of solidification, then with Temperature is risen to 60 DEG C and is incubated 0.5~8h by 0.5~2 DEG C/min heating rate, then again with 0.5~2 DEG C/min heating Temperature is risen to 80 DEG C and is incubated 1~4h by speed, is dropped to 60 DEG C by 0.5~2 DEG C/min speed afterwards, is continued at 60 DEG C 0.5~1h, continue to be down to 30 DEG C by 0.5~2 DEG C/min speed afterwards, take out fiber optic coils afterwards.
- 6. a kind of method for improving fiber optic coils performance according to claim 3, it is characterised in that the adhesive is purple Outer light-cured epoxy acrylic resin adhesive, the UV radiation-curable epoxy acrylate resin adhesive modulus be 200~ 2000MPa, glass transition temperature >=80 DEG C.
- 7. a kind of method for improving fiber optic coils performance according to claim 6, it is characterised in that the step S2 is specific Implement according to following steps：S021：Fiber optic coils after the completion of dipping are taken out from dipping tank body, remove the adhesive of excess surface；S022：Step S021 is removed to the fiber optic coils after surface adhesive and places 8~16h at normal temperatures, is made in fiber optic coils The adhesive in portion reaches Stable distritation；S023：Fiber optic coils after step S022 processing are put into ultra-violet curing case and solidified, are first shone under 50~200W ultraviolet lights 3~10min is penetrated, uviol lamp is closed and waits 10~20min after the temperature in ultraviolet case is cooled to room temperature, then adjust ultraviolet light work( Rate continues 3~5min of irradiation to 250~500W, closes uviol lamp and waits 10~20min, then with 250~500W ultraviolet lights 3 ~5min, such iterative cycles irradiate 5~10 times, until adhesive is fully cured inside fiber optic coils.
- 8. a kind of method for improving fiber optic coils performance according to claim 3, it is characterised in that the step S3 is specific Implement according to following steps：S31：Fiber optic coils after solidification are put into high-low temperature chamber, at the release for carrying out Googol motion controller according to the following steps Reason：S32：Cool to -45 DEG C with 0.5~2 DEG C/min rate of temperature fall, -45 DEG C be incubated 4~8h, after again with 0.5~2 DEG C/ Min heating rate is warming up to 70 DEG C, is incubated 4~8h at 70 DEG C, then cool to -45 with 0.5~2 DEG C/min rate of temperature fall DEG C, 4~8h is incubated at -45 DEG C, such high/low temperature circulation stores 2~5 times；S33：- 45 DEG C are cooled to 0.5~2 DEG C/min rate of temperature fall, 10~20min is incubated at -45 DEG C, then again with 0.5 ~2 DEG C/min heating rate is warming up to 70 DEG C, and 10~20min, then the rate of temperature fall with 0.5~2 DEG C/min are incubated at 70 DEG C - 45 DEG C are cooled to, 10~20min is incubated at -45 DEG C, such high/low temperature circulation stores 30~60 times, takes out fiber optic coils afterwards, And test whether its temperature performance reaches requirement, if it is not, step S32 and S33 are then continued executing with, until fiber optic coils performance reaches Untill it is required that, if so, then end-of-job, is prepared high-performance optical fiber coil.
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