CN109099946B - Fiber grating sensor packaging device and method - Google Patents
Fiber grating sensor packaging device and method Download PDFInfo
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- CN109099946B CN109099946B CN201810642523.4A CN201810642523A CN109099946B CN 109099946 B CN109099946 B CN 109099946B CN 201810642523 A CN201810642523 A CN 201810642523A CN 109099946 B CN109099946 B CN 109099946B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35306—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement
- G01D5/35309—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer
- G01D5/35316—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer using a Bragg gratings
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- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The invention relates to a fiber grating sensor packaging device which comprises a base, a workbench, a heating device, a gluing device, two fiber clamping mechanisms and a prestress adjusting device, wherein the prestress adjusting device is arranged on the base, one of the two fiber clamping mechanisms is arranged at the output end of the prestress adjusting device, the other one of the two fiber clamping mechanisms is arranged on the base, the fiber clamping mechanism arranged at the output end of the prestress adjusting device adjusts the distance between the fiber clamping mechanism and the other fiber clamping mechanism under the action of the prestress adjusting device, the workbench is arranged on the base between the two fiber clamping mechanisms, and the heating device is arranged between the base and the workbench. The invention has the beneficial effects that: the method has the advantages of convenient operation, stable and reliable work, fine adjustment and the like, and can apply constant prestress to the fiber bragg grating sensor; the same prestress can be applied, and the chirp and waveform distortion of the fiber bragg grating are avoided, so that the stability and good consistency of the wavelength temperature characteristic are ensured.
Description
Technical Field
The invention relates to a fiber grating sensing technology, in particular to a fiber grating sensor packaging device and a method.
Background
The Fiber Bragg Grating (FBG) has the characteristics of small volume, light weight, small fusion loss, strong anti-electromagnetic interference capability, high sensitivity, embedding and the like, and the resonant wavelength of the FBG is sensitive to the change of external environments such as temperature, strain, refractive index, concentration and the like and has good linear response, so the FBG is widely applied to the fields of optical fiber communication and sensing. The fiber bragg grating can be manufactured into various sensors such as a strain sensor, a temperature sensor, an acceleration sensor, a displacement sensor, a pressure sensor, a flow sensor, a liquid level sensor and the like through different packaging modes. In recent years, fiber grating sensors are also widely used in civil and hydraulic engineering, bridge safety monitoring, road health detection, and the like. At present, the method is widely applied to the fields of aerospace, ships, electric power, medical treatment, civil engineering and the like. However, the nature of the fiber grating itself limits its practical application, and in order to solve this problem, in practical application, the fiber grating is usually packaged, and the package plays a role in protection and sensitization, and references: [ Zhang Zhiyu fiber grating sensing packaging technology research [ D ]. Shenyang, Shenyang university of aerospace ] 2014.1-62.
Because the FBG is a single-mode silica fiber with a coating layer removed by ultraviolet light, the FBG is fine, brittle and easy to break, and in a harsh environment, the bare grating is corroded by acid or alkali, reference: [ Wenchang gold, Liyulong a fiber grating pre-stressed tube package [ J ].1002-5561(2014)06-0012-04 ] needs to add a layer of package protection to the fiber grating. When the fiber grating is not prestressed, the fiber grating is fixed on the packaging substrate, the grating cannot be tightly attached to the packaging substrate, and can be bent to a certain extent in any direction, so that the measured central wavelength drift cannot truly reflect the induction of the parameter of the measured object, and the test signal of the sensor is inaccurate.
At present, when the fiber grating sensor is packaged, the problem of applying pretightening force is rarely considered, wherein the packaging device which applies prestress to the axial direction of the fiber grating respectively basically adopts the modes of hanging weights and the like, and the methods can not continuously control the magnitude of external force, so the pretightening force applied to each group of packaged fiber grating sensors is different, and the numerical value measured by the fiber grating sensor has certain influence.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a fiber grating sensor packaging apparatus and method, so as to overcome the above-mentioned deficiencies in the prior art.
The technical scheme for solving the technical problems is as follows: the utility model provides a fiber grating sensor packaging hardware, the on-line screen storage device comprises a base, a workbench, a heating device, the rubber coating device, two fiber clamping mechanism and prestressing force adjusting device, prestressing force adjusting device sets up on the base, one of two fiber clamping mechanism sets up on prestressing force adjusting device's output, another sets up on the base, fiber clamping mechanism who sets up on prestressing force adjusting device output adjusts its and another fiber clamping mechanism's interval through prestressing force adjusting device's effect, the workstation is arranged on the base that is in between two fiber clamping mechanism, heating device sets up between base and workstation.
The invention has the beneficial effects that: the packaging device has the advantages of convenient operation, stable and reliable work, fine adjustment and the like, can apply constant prestress to the fiber bragg grating sensor and can be used in the temperature range of 0-300 ℃; when the device is used for packaging the fiber grating sensor, the same prestress can be applied, the chirp and waveform distortion of the fiber grating are avoided, and the stability and good consistency of the wavelength temperature characteristic are ensured.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, still include position control device, position control device sets up on the base, and the workstation sets up on position control device, and heating device sets up between position control device and the workstation.
Further, the position adjusting device comprises an X-axis adjusting mechanism, a Y-axis adjusting mechanism and a Z-axis adjusting mechanism, the X-axis adjusting mechanism is arranged on the base, the Y-axis adjusting mechanism is arranged on the X-axis adjusting mechanism, the Z-axis adjusting mechanism is arranged on the Y-axis adjusting mechanism, and the heating device is arranged between the Z-axis adjusting mechanism and the workbench.
Further, the X-axis adjusting mechanism is a first lead screw guide rail mechanism, and the Y-axis adjusting mechanism is a second lead screw guide rail mechanism; the first screw rod guide rail mechanism is arranged on the base, and the second screw rod guide rail mechanism is arranged on a sliding block of the first screw rod guide rail mechanism; the Z-axis adjusting mechanism comprises a base, a pressure plate, a rotating sleeve, a moving guide rod and guide rods, wherein the base is arranged on a sliding block of the second lead screw guide rail mechanism, the rotating sleeve is movably fixed on the base through the pressure plate, one end of the moving guide rod is in threaded connection with an inner cavity of the rotating sleeve, the other end of the moving guide rod is connected with a workbench through a heating device, a plurality of guide holes are formed in the base and the moving guide rod, the guide rods are inserted in the guide holes, and the two ends of each guide rod are equally divided into the base and the moving guide rod.
The adoption of the further beneficial effects is as follows: the workbench can be adjusted along the X axis, the Y axis and the Z axis, and the optical fiber engraved with the grating can be accurately attached to the packaging substrate.
Further, the prestress adjusting device is a linear lead screw guide rail mechanism, and one of the two optical fiber clamping mechanisms is arranged on a sliding block in the linear lead screw guide rail mechanism.
The adoption of the further beneficial effects is as follows: the adjustment is convenient, and the self-locking can be carried out after the adjustment to any position.
Further, still include fiber grating tension measuring device, fiber grating tension measuring device sets up on the base.
The adoption of the further beneficial effects is as follows: the tightness degree of the optical fiber engraved with the grating can be conveniently known, so that the optical fiber engraved with the grating can be accurately attached to the packaging substrate.
The device further comprises a control device, a display device and a camera, wherein the camera is arranged on the workbench, an acquisition lens of the camera faces the working surface of the workbench, and a driving motor and a fiber bragg grating tension measuring device in the display device, the camera and the linear lead screw guide rail mechanism are respectively and electrically connected with the control device.
The adoption of the further beneficial effects is as follows: the camera is used for collecting the position of the grating region of the optical fiber relative to the substrate in real time, transmitting the collected image to the control device, and finally transmitting the image to the display device by the control device for displaying, so that an operator can observe whether the grating region of the optical fiber is aligned with the substrate or not, and the alignment is convenient to adjust.
Furthermore, the optical fiber clamping mechanism comprises two bearing seats, two one-way bearings, a clamping shaft, a pressing plate and a connecting assembly, wherein the two bearing seats are fixed on the output end of the base or the prestress adjusting device, the two one-way bearings are fixed on the two bearing seats respectively, two ends of the clamping shaft are connected with inner rings of the two one-way bearings respectively, and the pressing plate is movably connected with the clamping shaft through the connecting assembly.
The adoption of the further beneficial effects is as follows: after being matched with the position adjusting device, the optical fiber carved with the grating can be more accurately attached to the packaging substrate.
Furthermore, coupling assembling includes hinge and magnet, and the one end of clamp plate is connected with the clamp shaft through the hinge, and the other end of clamp plate passes through the magnet actuation on the clamp shaft.
A packaging method of a fiber grating sensor comprises the following steps:
s1, placing the substrate to be packaged on the working surface of the workbench;
s2, clamping one end of the optical fiber with the grating by an optical fiber clamping mechanism fixed on a base, then clamping the other end of the optical fiber with the grating by the optical fiber clamping mechanism fixed on a prestress adjusting device after sequentially passing through a working surface of a workbench and an optical fiber grating tension measuring device, rotating a clamping shaft to straighten the optical fiber with the grating, ensuring that a grid area of the optical fiber with the grating is positioned right above the working surface of the workbench, finely adjusting the prestress adjusting device, and stopping the prestress adjusting device when the tension displayed on the optical fiber grating tension measuring device meets the packaging requirement;
s3, adjusting the working surface of the workbench to a height close to the gate region by using a Z-axis adjusting mechanism according to the size of the packaging substrate;
s4, adjusting the X-axis adjusting mechanism and the Y-axis adjusting mechanism to enable the grid region to be just above the packaging substrate, and adjusting the Z-axis adjusting mechanism to enable the packaging substrate to be just attached to the grid region;
s5, starting a gluing device to apply adhesive dots at the contact position of the gate region and the packaging substrate;
s6, starting a heating device to heat the adhesive to quickly cure the adhesive;
and S7, curing the adhesive to obtain the fiber grating sensor.
The adoption of the further beneficial effects is as follows: the method has the advantages of convenience in operation, stability and reliability in working, fine adjustment and the like, constant prestress can be applied to the fiber grating sensor, the same prestress can be applied when the fiber grating sensor is packaged, fiber grating chirp and waveform distortion are avoided, and therefore stability and good consistency of wavelength temperature characteristics are guaranteed.
Drawings
FIG. 1 is a schematic structural diagram of a fiber grating sensor package according to the present invention;
FIG. 2 is a schematic diagram of the fiber clamping mechanism of the present invention;
FIG. 3 is a schematic structural view of the fiber clamping mechanism and the pre-stress adjustment device of the present invention;
FIG. 4 is a schematic structural diagram of an X-axis adjusting mechanism and a Y-axis adjusting mechanism according to the present invention;
FIG. 5 is a schematic structural view of the Z-axis adjustment mechanism of the present invention;
fig. 6 is a schematic structural diagram of the fiber grating tension measuring device according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the optical fiber tension measuring device comprises a base, 2, a workbench, 3, an optical fiber clamping mechanism, 310, a bearing seat, 320, a one-way bearing, 330, a clamping shaft, 340, a pressing plate, 350, a connecting assembly, 351, a hinge, 352, a magnet, 4, a prestress adjusting device, 5, a position adjusting device, 510, an X-axis adjusting mechanism, 520, a Y-axis adjusting mechanism, 530, a Z-axis adjusting mechanism, 531, a base, 532, a pressing plate, 533, a rotating sleeve, 534, a moving guide rod, 535, a guide rod, 6, an optical fiber grating tension measuring device, 610, a tension meter, 620, an auxiliary supporting frame, 630, a fixing block, 640, a main supporting frame, 650, a fixing piece, 7, a display device, 8 and a camera.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, 2, 3, 4, 5, and 6, a fiber grating sensor packaging device includes a base 1, a worktable 2, a heating device, a gluing device, two fiber clamping mechanisms 3, and a pre-stress adjusting device 4, the pre-stress adjusting device 4 is disposed on the base 1, one of the two fiber clamping mechanisms 3 is disposed on an output end of the pre-stress adjusting device 4, the other is disposed on the base 1, the fiber clamping mechanism 3 disposed on the output end of the pre-stress adjusting device 4 adjusts a distance between the fiber clamping mechanism (disposed on the output end of the pre-stress adjusting device) and the other fiber clamping mechanism 3 by the action of the pre-stress adjusting device 4, and the two fiber clamping mechanisms 3 are disposed opposite to each other. The prestress adjusting device 4 is preferably a linear screw guide mechanism, one of the two optical fiber clamping mechanisms 3 is arranged on a slide block in the linear screw guide mechanism, the workbench 2 is arranged on the base 1 between the two optical fiber clamping mechanisms 3, and the heating device is arranged between the base 1 and the workbench 2.
The fiber grating sensor packaging device further comprises a position adjusting device 5, the position adjusting device 5 is arranged on the base 1, and the workbench 2 is arranged on the position adjusting device 5.
The specific structure of the position adjusting device 5 employed in the present invention is as follows:
the position adjusting device 5 comprises an X-axis adjusting mechanism 510, a Y-axis adjusting mechanism 520 and a Z-axis adjusting mechanism 530, wherein the X-axis adjusting mechanism 510 is arranged on the base 1, the Y-axis adjusting mechanism 520 is arranged on the X-axis adjusting mechanism 510, and the Z-axis adjusting mechanism 530 is arranged on the Y-axis adjusting mechanism 520.
The X-axis adjustment mechanism 510 is preferably a first lead screw guide mechanism, and the Y-axis adjustment mechanism 520 is also preferably a second lead screw guide mechanism, the first lead screw guide mechanism being disposed on the base 1, the second lead screw guide mechanism being disposed on a slider of the first lead screw guide mechanism. The Z-axis adjusting mechanism 530 includes a base 531, a platen 532, a rotating sleeve 533, a moving guide rod 534 and a guide rod 535, the base 531 is disposed on a slider of the second lead screw guide mechanism, the platen 532 is sleeved on the rotating sleeve 533, the rotating sleeve 533 is movably fixed on the base 531 through the platen 532, the rotating sleeve 533 is vertically disposed, an external thread is disposed on an outer circumferential surface of the moving guide rod 534, an internal thread is disposed on an inner cavity of the rotating sleeve 533, one end of the moving guide rod 534 is in threaded connection with the inner cavity of the rotating sleeve 533, the other end of the moving guide rod 534 is connected with the worktable 2 through a heating device, the moving guide rod 534 is vertically disposed, a plurality of guide holes are disposed in the base 531 and the moving guide rod 534, the guide rod 535 is inserted in each guide hole, two ends of each guide rod 535 are respectively disposed in the base 531 and the moving guide rod 534, when the rotating sleeve 533 rotates, because the moving guide rod 534, and the moving guide 534 can be vertically lifted by the plurality of guide bars 535, thereby completing the lifting of the work table 2.
Heating device mainly comprises the piece and the heat insulating block that generate heat, the piece and the heat insulating block that generate heat are installed and are being removed between guide arm 534 and workstation 2, open the piece switch that generates heat and heat workstation 2 after gluing and scribbling, in order to reach the purpose that makes glue dry fast, the heat insulating block prevents that the heat that the heating piece produced from transmitting to other components of device fast on causing the influence to the normal work and the adjustment precision of other components, also prevent simultaneously that the heat from loosing completely fast, reach and heat and glue the purpose that makes glue dry fast.
The fiber bragg grating sensor packaging device also comprises a fiber bragg grating tension measuring device 6, the fiber bragg grating tension measuring device 6 is arranged on the base 1, the fiber bragg grating tension measuring device 6 comprises a tension meter 610, an auxiliary supporting frame 620, a fixing block 630, a main supporting frame 640 and a fixing piece 650, the lower end of the auxiliary supporting frame 620 and the lower end of the main supporting frame 640 are connected with the base 1 through the fixing block 630, the upper end of the auxiliary supporting frame 620 is connected with the tension meter 610, the upper end of the auxiliary supporting frame 620 is connected with the fixing piece 650, the tension meter 610 is fixed under the action of the fixing piece 650, when pre-tightening force is applied to the optical fiber with the grating, quantitative measurement of the pre-tightening force in the optical fiber with the grating is generally required, the magnitude of the prestress can be measured by a tension meter 610, the principle is a three-point force measuring method, and when the prestress is measured, the change generated by the prestress in the optical fiber engraved with the grating is measured slightly.
Fiber grating sensor packaging hardware still includes controlling means, display device 7 and camera 8, camera 8 sets up on workstation 2, the acquisition camera lens of camera 8 is towards the working face of workstation 2, display device 7, camera 8, driving motor and fiber grating tension measuring device 6 in the linear screw rod guide rail mechanism are connected with controlling means electricity respectively, camera 8 is used for gathering the position of the bars district of optic fibre for the substrate in real time, and with image transmission to controlling means gathered, transmit to display device 7 by controlling means at last and show, so that whether the operator observes the bars district of optic fibre and aligns with the substrate, be convenient for adjust and adjust well.
The optical fiber clamping mechanism 3 comprises two bearing seats 310, two one-way bearings 320, a clamping shaft 330, a pressing plate 340 and a connecting assembly 350, wherein the two bearing seats 310 are fixed on the base 1, or the two bearing seats 310 are fixed on the output end of the pre-stress adjusting device 4, that is, the two bearing seats 310 are fixed on a slider in the linear lead screw guide rail mechanism, the two one-way bearings 320 are respectively fixed on the two bearing seats 310, and two ends of the clamping shaft 330 are respectively connected with inner rings of the two one-way bearings 320, in the embodiment, the pre-stress adjusting device 4 is fixed on the right end of the base 1, one of the two optical fiber clamping mechanisms 3 is arranged at the left end of the base 1, the other one of the two optical fiber clamping mechanisms 3 is arranged at the output end of the pre-stress adjusting device 4, and the clamping shaft 330 in the optical fiber clamping mechanism 3 arranged at the left, the clamping shaft 330 of the optical fiber clamping mechanism 3 disposed on the prestress adjusting device 4 can only rotate clockwise under the restriction of the one-way bearing 320, and the pressing plate 340 is movably connected with the clamping shaft 330 through the connecting assembly 350.
In the present invention, the specific structure of the connection assembly 350 is as follows:
the connecting assembly 350 includes a hinge 351 and a plurality of magnets 352, one end of the pressing plate 340 is connected with the clamping shaft 330 through the hinge 351, the other end of the pressing plate 340 is a free end, the pressing plate 340 can axially rotate around the hinge 351, the magnets 352 are all embedded on the clamping shaft 330, the pressing plate 340 is made of a material which is easily attracted by the magnets 352, when an optical fiber needs to be clamped, the optical fiber is placed on the clamping shaft 330, the pressing plate 340 is rotated to enable the pressing plate 340 to be attracted on the clamping shaft 330 through the magnets 352, so that the optical fiber is clamped, a rubber film is attached to the surface of the pressing plate 340, which is in contact with the optical fiber, and the surface of the clamping shaft 330, which is in contact with the optical fiber, so as to increase friction, and the optical fiber can.
The gluing device comprises a plurality of glue storage containers, a mixing container and a glue dispensing mechanism, the number of the glue storage containers is determined according to the type of glue needed to be used, the glue in the glue storage containers is injected into the mixing container when the glue dispensing device is used, and the glue is supplied to the glue dispensing mechanism for use after being fully stirred by external force.
The workbench 2 is provided with a plurality of drilled holes, so that different clamps can be selected to be arranged on the workbench 2 according to the structure size of the packaging substrate, and the applicability of the invention is improved.
A packaging method of a fiber grating sensor comprises the following steps:
s1, arranging the workbench 2 of the packaging device, adjusting the Z-axis adjusting mechanism 530 to lower the workbench 2, placing a substrate to be packaged on the working surface of the workbench 2, positioning the packaging substrate on the working surface of the workbench 2, and preparing a packaging adhesive;
s2, placing the left end of the optical fiber engraved with the grating in the optical fiber clamping mechanism 3 at the left end of the base 1, rotating the clamping shaft 330 to wind the optical fiber engraved with the grating on the clamping shaft 330, stopping rotating the clamping shaft 330 when the grating area of the optical fiber engraved with the grating is positioned right above the workbench 2, then placing the right end of the optical fiber engraved with the grating in the prestress adjusting device 4 after bypassing the tension meter 610 in the optical fiber grating tension measuring device 6, rotating the clamping shaft 330 to observe whether the optical fiber grating is to be stretched straight, stopping the clamping shaft 330 when the optical fiber engraved with the grating is stretched straight, finely adjusting the prestress adjusting device 4, finely adjusting the distance between the optical fiber clamping mechanism 3 fixed on the prestress adjusting device 4 and the other optical fiber clamping mechanism 3 by using the prestress adjusting device 4, stopping the prestress adjusting device 4 when the tension displayed on the optical fiber grating tension measuring device 6 meets the packaging requirement, the optical fiber engraved with the grating is kept in a stretched state under the limitation of the one-way bearing 320;
s3, adjusting the working surface of the worktable 2 to a height close to the grid area by the Z-axis adjusting mechanism 530 according to the size of the packaging substrate;
s4, adjusting the X-axis adjusting mechanism 510 and the Y-axis adjusting mechanism 520 to enable the grid region to be just above the packaging substrate, and adjusting the Z-axis adjusting mechanism 530 to enable the packaging substrate to be just attached to the grid region;
s5, starting a gluing device to apply adhesive dots at the contact position of the gate region and the packaging substrate;
s6, starting a heating device to heat the adhesive to quickly cure the adhesive;
and S7, after the adhesive is cured, reversely fine-tuning the prestress adjusting device 4 to slowly loosen the optical fiber carved with the grating, thereby obtaining the packaged fiber grating sensor.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (2)
1. A fiber bragg grating sensor packaging device is characterized by comprising a base (1), a workbench (2), a heating device, a gluing device, two fiber clamping mechanisms (3) and a prestress adjusting device (4), the prestress adjusting device (4) is arranged on the base (1), one of the two optical fiber clamping mechanisms (3) is arranged on the output end of the prestress adjusting device (4), the other one of the two optical fiber clamping mechanisms is arranged on the base (1), the optical fiber clamping mechanism (3) arranged on the output end of the prestress adjusting device (4) adjusts the distance between the optical fiber clamping mechanism and the other optical fiber clamping mechanism (3) under the action of the prestress adjusting device (4), the working table (2) is arranged on the base (1) between the two optical fiber clamping mechanisms (3), the heating device is arranged between the base (1) and the workbench (2); the heating device is characterized by further comprising a position adjusting device (5), wherein the position adjusting device (5) is arranged on the base (1), the workbench (2) is arranged on the position adjusting device (5), and the heating device is arranged between the position adjusting device (5) and the workbench (2); the position adjusting device (5) comprises an X-axis adjusting mechanism (510), a Y-axis adjusting mechanism (520) and a Z-axis adjusting mechanism (530), the X-axis adjusting mechanism (510) is arranged on the base (1), the Y-axis adjusting mechanism (520) is arranged on the X-axis adjusting mechanism (510), the Z-axis adjusting mechanism (530) is arranged on the Y-axis adjusting mechanism (520), and the heating device is arranged between the Z-axis adjusting mechanism (530) and the workbench (2); the X-axis adjusting mechanism (510) is a first lead screw guide rail mechanism, and the Y-axis adjusting mechanism (520) is a second lead screw guide rail mechanism; the first screw rod guide rail mechanism is arranged on the base (1), and the second screw rod guide rail mechanism is arranged on a sliding block of the first screw rod guide rail mechanism; the Z-axis adjusting mechanism (530) comprises a base (531), a pressing plate (532), a rotating sleeve (533), a moving guide rod (534) and guide rods (535), wherein the base (531) is arranged on a sliding block of the second lead screw guide rail mechanism, the rotating sleeve (533) is movably fixed on the base (531) through the pressing plate (532), one end of the moving guide rod (534) is in threaded connection with an inner cavity of the rotating sleeve (533), the other end of the moving guide rod (534) is connected with the workbench (2) through a heating device, a plurality of guide holes are formed in the base (531) and the moving guide rod (534), the guide rods (535) are inserted in the guide holes, and two ends of each guide rod (535) are respectively located in the base (531) and the moving guide rod (534); the prestress adjusting device (4) is a linear screw rod guide rail mechanism, and one of the two optical fiber clamping mechanisms (3) is arranged on a sliding block in the linear screw rod guide rail mechanism; the tension measuring device (6) for the fiber bragg grating is further included, and the tension measuring device (6) for the fiber bragg grating is arranged on the base (1); the device is characterized by further comprising a control device, a display device (7) and a camera (8), wherein the camera (8) is arranged on the workbench (2), an acquisition lens of the camera (8) faces to a working surface of the workbench (2), and the display device (7), the camera (8), a driving motor in the linear lead screw guide rail mechanism and the fiber bragg grating tension measuring device (6) are respectively and electrically connected with the control device; the optical fiber clamping mechanism (3) comprises two bearing seats (310), two one-way bearings (320), a clamping shaft (330), a pressing plate (340) and a connecting assembly (350), the two bearing seats (310) are fixed on the output end of the base (1) or the prestress adjusting device (4), the two one-way bearings (320) are fixed on the two bearing seats (310) respectively, two ends of the clamping shaft (330) are connected with inner rings of the two one-way bearings (320) respectively, and the pressing plate (340) is movably connected with the clamping shaft (330) through the connecting assembly (350); the connecting component (350) comprises a hinge (351) and a magnet (352), one end of the pressing plate (340) is connected with the clamping shaft (330) through the hinge (351), and the other end of the pressing plate (340) is attracted to the clamping shaft (330) through the magnet (352).
2. A method for packaging a fiber grating sensor by the fiber grating sensor packaging device according to claim 1, comprising the following steps:
s1, placing the substrate to be packaged on the working surface of the workbench (2);
s2, clamping one end of the optical fiber with the grating by an optical fiber clamping mechanism (3) fixed on a base (1), then clamping the other end of the optical fiber with the grating by the optical fiber clamping mechanism (3) fixed on a prestress adjusting device (4) after sequentially passing through a working surface of a workbench (2) and an optical fiber grating tension measuring device (6), rotating a clamping shaft (330), straightening the optical fiber with the grating, ensuring that a grid area of the optical fiber with the grating is positioned right above the working surface of the workbench (2), finely adjusting the prestress adjusting device (4), and stopping the prestress adjusting device (4) when the tension displayed on the optical fiber grating tension measuring device (6) meets the packaging requirement;
s3, adjusting the working surface of the workbench (2) to a height close to the gate region by using a Z-axis adjusting mechanism (530) according to the size of the packaging substrate;
s4, adjusting the X-axis adjusting mechanism (510) and the Y-axis adjusting mechanism (520) to enable the grid region to be just above the packaging substrate, and adjusting the Z-axis adjusting mechanism (530) to enable the packaging substrate to be just attached to the grid region;
s5, starting a gluing device to apply adhesive dots at the contact position of the gate region and the packaging substrate;
s6, starting a heating device to heat the adhesive to quickly cure the adhesive;
and S7, curing the adhesive to obtain the fiber grating sensor.
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| CN110375879B (en) * | 2019-06-26 | 2021-03-16 | 广州大学 | FRP-FBG packaging device and positioning method |
| CN111006700A (en) * | 2019-08-15 | 2020-04-14 | 南京邮电大学 | Fiber grating packaging device and packaging method |
| CN111039087B (en) * | 2019-12-26 | 2021-09-07 | 北京航天控制仪器研究所 | Method and system for controlling package tension of active fiber bragg grating of fiber laser hydrophone |
| CN111623811B (en) * | 2020-04-22 | 2021-09-21 | 西北大学 | High-temperature-resistant fiber grating sensor packaging device and method |
| CN112254751A (en) * | 2020-10-10 | 2021-01-22 | 衢州学院 | Packaging device of fiber grating sensor |
| CN114136349A (en) * | 2021-11-16 | 2022-03-04 | 西安交通大学 | High-temperature-resistant Bragg fiber grating sensor with variable sensing quantity and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636838A (en) * | 2012-05-16 | 2012-08-15 | 杭州联光电子有限公司 | Package method and device for fiber bragg grating with adjustable central wavelength and adjustable temperature coefficient |
| CN104596437A (en) * | 2015-01-12 | 2015-05-06 | 武汉理工大学 | Handheld adhesion tool for fiber bragg grating surface strain measurement and method |
| CN104729668A (en) * | 2015-04-10 | 2015-06-24 | 武汉理工大学 | Distributed type two-dimension fiber bragg grating vibrating sensor and manufacturing thereof |
| CN204480674U (en) * | 2014-12-31 | 2015-07-15 | 广东福地新视野光电技术有限公司 | A kind of 3 D auto motion |
| CN105583484A (en) * | 2015-12-16 | 2016-05-18 | 北京遥测技术研究所 | Optical fiber sensor glue-free packaging device and method |
| CN105651319A (en) * | 2016-01-05 | 2016-06-08 | 武汉理工大学 | Packaging device for applying constant pre-stress on fiber grating sensor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI346772B (en) * | 2007-06-22 | 2011-08-11 | Univ Nat Chiao Tung | Fiber grating sensor |
-
2018
- 2018-06-21 CN CN201810642523.4A patent/CN109099946B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636838A (en) * | 2012-05-16 | 2012-08-15 | 杭州联光电子有限公司 | Package method and device for fiber bragg grating with adjustable central wavelength and adjustable temperature coefficient |
| CN204480674U (en) * | 2014-12-31 | 2015-07-15 | 广东福地新视野光电技术有限公司 | A kind of 3 D auto motion |
| CN104596437A (en) * | 2015-01-12 | 2015-05-06 | 武汉理工大学 | Handheld adhesion tool for fiber bragg grating surface strain measurement and method |
| CN104729668A (en) * | 2015-04-10 | 2015-06-24 | 武汉理工大学 | Distributed type two-dimension fiber bragg grating vibrating sensor and manufacturing thereof |
| CN105583484A (en) * | 2015-12-16 | 2016-05-18 | 北京遥测技术研究所 | Optical fiber sensor glue-free packaging device and method |
| CN105651319A (en) * | 2016-01-05 | 2016-06-08 | 武汉理工大学 | Packaging device for applying constant pre-stress on fiber grating sensor |
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