CN114111616A - Deflection sensor assembly based on chirped fiber grating design - Google Patents
Deflection sensor assembly based on chirped fiber grating design Download PDFInfo
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- CN114111616A CN114111616A CN202111511863.1A CN202111511863A CN114111616A CN 114111616 A CN114111616 A CN 114111616A CN 202111511863 A CN202111511863 A CN 202111511863A CN 114111616 A CN114111616 A CN 114111616A
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- surface position
- hole
- deflection sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/165—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by means of a grating deformed by the object
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention relates to the technical field of sensor components, in particular to a deflection sensor component designed based on chirped fiber bragg grating, which comprises a component outer shell and a closed cover plate, wherein an installation groove and an internal thread fixing hole are formed in the upper surface of the component outer shell, and a deflection sensor is movably arranged in the component outer shell; the flexibility sensor assembly can ensure that the chirped fiber grating resonant cavity inside the flexibility sensor is straight and has no bending loss when the flexibility sensor is installed through the arranged stretching and straightening mechanism, so that the working efficiency of the flexibility sensor is greatly improved, the flexibility sensor can be sealed with the detection surface of the sensor through the arranged flexible sealing structure, the flexibility change of the detection surface of the sensor cannot be influenced, and the working stability and the service life of the sensor are greatly improved.
Description
Technical Field
The invention relates to the technical field of sensor components, in particular to a deflection sensor component designed based on chirped fiber bragg grating.
Background
The chirped fiber grating is a fiber grating formed by gradually increasing (decreasing) the variation amplitude of the refractive index of the fiber core of the optical fiber or the variation period of the refractive index along the axial direction of the optical fiber, and can reflect incident light with different wavelengths at different axial positions of the chirped fiber grating, so the chirped fiber grating is characterized by wide reflection spectrum and gradual group delay in the reflection bandwidth, the slope of a group delay curve is the dispersion value of the fiber grating, the fiber grating in a chirped fiber grating deflection sensor is stressed or strained, so that the period of the fiber grating is changed, the reflection wavelength of the fiber grating is shifted, and the numerical value of the stress or the strain is obtained according to the shift amount of the wavelength.
Therefore, the chirped fiber grating deflection sensor must ensure the straightness of a resonant cavity in the chirped fiber grating during installation, otherwise, great loss is generated, great influence is generated on the precision, the chirped fiber grating deflection sensor also has certain requirements on the working environment, and in order to improve the working efficiency and stability of the sensor, the deflection sensor assembly based on the chirped fiber grating design is provided.
Disclosure of Invention
The invention aims to provide a deflection sensor assembly designed based on chirped fiber grating, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a deflection sensor subassembly based on design of chirped fiber grating, includes subassembly outside casing and closing cover, installation fluting and internal thread fixed orifices have been seted up to the upper surface position of subassembly outside casing, the inside activity of subassembly outside casing is provided with the deflection sensor, the deflection sensor with be provided with tensile alignment mechanism between the subassembly outside casing, the outside activity card of deflection sensor establishes and installs fixed snap ring, the lower surface position of subassembly outside casing is provided with flexible seal structure, the front surface position of subassembly outside casing is provided with the spool mechanism of walking that has sealing function.
Preferably, the stretching and straightening mechanism comprises a hanging mounting plate fixedly mounted on the upper surface of the inside of the outer shell of the component, a cross rod through hole is formed in the surface of one side of the hanging mounting plate, a transverse stretching rod penetrates through the cross rod through hole, a tip limiting disc is fixedly mounted on the surface of one end of the transverse stretching rod, and a vertical plate is fixedly mounted on the surface of the other end of the transverse stretching rod.
Preferably, the outside of horizontal tensile pole is located to hang and is established between mounting panel and the installation vertical plate and install extension spring, and extension spring's both ends respectively with hang the mounting panel and install the surface fixed connection of vertical plate, the lower surface position fixed mounting of installation vertical plate has the horizontal installation board, the depression bar through-hole has been seted up to the upper surface position of horizontal installation board.
Preferably, the inside activity interlude of depression bar through-hole is provided with vertical compression leg, the upper end surface position fixed mounting of vertical compression leg is carried and is drawn even board, the upper surface position fixed mounting who draws even board is carried has the fixed column, the upper end surface position fixed mounting of fixed column has the fixed shackle.
Preferably, the lower extreme surface position fixed mounting of vertical compression leg has the connection clamp plate, the outside of vertical compression leg is located the horizontal mounting board and is connected between the clamp plate the cover and establish and install the extrusion spring, the lower surface position fixed mounting of connection clamp plate has fixed pin, the surface position fixed mounting of amount of deflection sensor has the tensile post ear, and the upper surface position of tensile post ear has seted up the spacing hole of pin, fixed pin alternates to set up inside the spacing hole of pin.
Preferably, the flexible sealing structure comprises a vertical rubber wall fixedly mounted on the lower surface of the outer shell of the component, the vertical rubber wall is matched with the cross section of the lower surface of the outer shell of the component, a vertical rubber wall is fixedly mounted on the lower surface of the vertical rubber wall, a sealing pressure plate is arranged on the upper surface of the vertical rubber wall, screw through holes are formed in the surfaces of the vertical rubber wall and the sealing pressure plate, and the screw through hole positions of the surfaces of the vertical rubber wall and the sealing pressure plate correspond to each other.
Preferably, walk line pipe mechanism including seting up the line hole of walking of the front surface position at the outside casing of subassembly, and the front surface position of the outside casing of subassembly is located the outside fixed mounting who walks the line hole and has fixed pipe, the surface position of fixed pipe has seted up the installation external screw thread, the outside spiral shell of fixed pipe is established and is installed the extrusion swivel nut, and extrusion swivel nut and installation external screw thread spiral cooperation, the inside of extrusion swivel nut is provided with sealed rubber plug, the extrusion inclined plane has been seted up to a side surface position of sealed rubber plug, the line passageway has been seted up to the inside of sealed rubber plug, a side surface position of extrusion swivel nut has seted up the through-hole.
Preferably, the lower surface fixed mounting of closing cap has the sealed contact flange, and the outside surface of sealed contact flange and the tight cooperation of installation grooved inboard surface, the upper surface of closing cap is close to four corners position and equally divides and has do not seted up the screw unthreaded hole, the screw unthreaded hole with the position one-to-one of internal thread fixed orifices, the inside interlude of screw unthreaded hole is provided with the mounting screw, the outer surface fixed mounting of stationary snap ring has the screw stripper plate, and the surface position of screw stripper plate has seted up the extrusion through-hole.
Compared with the prior art, the invention has the beneficial effects that:
the flexibility sensor assembly can ensure that a chirped fiber grating resonant cavity inside the flexibility sensor is straight and has no bending loss when the flexibility sensor is installed through the arranged stretching and straightening mechanism, so that the working efficiency of the flexibility sensor is greatly improved, the flexibility sensor can be sealed with a sensor detection surface through the arranged flexible sealing structure, the flexibility change of the sensor detection surface cannot be influenced, the working stability and the service life of the sensor are greatly improved, more severe environments can be adapted, the periphery of a sensor connecting line can be sealed through the arranged routing pipe mechanism, and the sealing effect is further improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic half-section view of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a schematic view of the overall structure of the present invention;
FIG. 5 is a cross-sectional view of the present invention.
In the figure: 1. an assembly outer housing; 2. closing the cover plate; 3. installing a slot; 4. an internal thread fixing hole; 5. a deflection sensor; 6. fixing the snap ring; 501. suspending the mounting plate; 502. a cross bar through hole; 503. a transverse stretching rod; 504. an end limiting disc; 505. installing a vertical plate; 506. an extension spring; 507. a horizontal mounting plate; 508. a through hole of the pressure lever; 509. vertical compression columns; 510. lifting the connecting plate; 511. fixing a column; 512. a fixing shackle; 513. connecting the pressing plate; 514. a compression spring; 515. fixing the pin; 516. stretching the column ear; 517. a pin limiting hole; 101. a vertical rubber wall; 102. a vertical rubber wall; 103. sealing the pressure plate; 104. the screw penetrates through the jack; 105. a wiring hole; 106. a fixed tube; 107. installing external threads; 108. extruding the threaded sleeve; 109. sealing the rubber plug; 110. extruding the inclined plane; 111. a routing channel; 112. a through hole; 201. a sealing contact flange; 202. a screw unthreaded hole; 203. mounting screws; 601. a screw extrusion plate; 602. the through hole is pressed.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: the utility model provides a degree of deflection sensor subassembly based on design of chirp fiber grating, including subassembly outer casing 1 and closing cover 2, the upper surface position of subassembly outer casing 1 has been seted up installation fluting 3 and internal thread fixed orifices 4, the inside activity of subassembly outer casing 1 is provided with degree of deflection sensor 5, degree of deflection sensor 5 comprises single mode fiber, fiber grating grid district and structures such as chirp fiber grating, can detect the whole deformation information of object after bearing external force or stress, for prior art, be provided with tensile alignment mechanism between degree of deflection sensor 5 and the subassembly outer casing 1, the outside activity card of degree of deflection sensor 5 is established and is installed fixed snap ring 6, the lower surface position of subassembly outer casing 1 is provided with flexible seal structure, the front surface position of subassembly outer casing 1 is provided with the spool mechanism that walks that has sealing function.
The stretching and straightening mechanism comprises a hanging mounting plate 501 fixedly mounted on the upper surface of the inner part of the outer shell 1 of the component, a cross rod through hole 502 is formed in the surface of one side of the hanging mounting plate 501, a transverse stretching rod 503 is inserted into the cross rod through hole 502, an end limiting disc 504 is fixedly mounted on the surface of one end of the transverse stretching rod 503, and a vertical mounting plate 505 is fixedly mounted on the surface of the other end of the transverse stretching rod 503; an extension spring 506 is sleeved between the suspension mounting plate 501 and the mounting vertical plate 505 outside the transverse extension rod 503, two ends of the extension spring 506 are fixedly connected with the outer surfaces of the suspension mounting plate 501 and the mounting vertical plate 505 respectively, a horizontal mounting plate 507 is fixedly mounted on the lower surface of the mounting vertical plate 505, and a compression rod through hole 508 is formed in the upper surface of the horizontal mounting plate 507; a vertical compression column 509 is movably inserted into the compression column through hole 508, a lifting connecting plate 510 is fixedly mounted on the upper end surface of the vertical compression column 509, a fixing column 511 is fixedly mounted on the upper surface of the lifting connecting plate 510, and a fixing hook ring 512 is fixedly mounted on the upper end surface of the fixing column 511; the lower end surface position of vertical compression leg 509 is fixed with connects clamp plate 513, the outside of vertical compression leg 509 is located and is established between horizontal mounting plate 507 and the connection clamp plate 513 and install extrusion spring 514, the lower surface position fixed mounting who connects clamp plate 513 has fixed pin 515, the surface position fixed mounting of amount of deflection sensor 5 has the post ear of stretching 516, and the upper surface position of stretching the post ear has seted up the spacing hole of pin 517, fixed pin 515 alternates to set up inside the spacing hole of pin 517, fixed pin 515 has the trend to the both sides displacement under the effect of tensile alignment mechanism, fixed pin 515 inserts and can be pulled the post ear of stretching 516 to both sides in the spacing hole of pin 517, thereby make the amount of deflection sensor 5 be in the straight state always.
The flexible sealing structure comprises a vertical rubber wall 101 fixedly mounted on the lower surface of the outer shell 1 of the assembly, the vertical rubber wall 101 is matched with the cross section of the lower surface of the outer shell 1 of the assembly, a vertical rubber wall 102 is fixedly mounted on the lower surface of the vertical rubber wall 101, a sealing pressing plate 103 is arranged on the upper surface of the vertical rubber wall 102, the sealing pressing plate 103 is made of materials with certain toughness, the screw pressure is balanced, the sealing effect of the vertical rubber wall 102 is improved, the deflection change of an object cannot be influenced, screw through holes 104 are formed in the surfaces of the vertical rubber wall 102 and the sealing pressing plate 103, hole positions of the screw through holes 104 in the surfaces of the vertical rubber wall 102 and the sealing pressing plate 103 correspond to each other, and therefore screws can penetrate through the vertical rubber wall 102 and the sealing pressing plate 103 simultaneously.
Walk line pipe mechanism including seting up the line hole 105 of walking of the front surface position at the outside casing 1 of subassembly, and the front surface position of the outside casing 1 of subassembly is located the outside fixed mounting who walks line hole 105 has fixed pipe 106, installation external screw thread 107 has been seted up to the surface position of fixed pipe 106, the outside spiral shell cover of fixed pipe 106 is established and is installed extrusion swivel nut 108, and extrusion swivel nut 108 and installation external screw thread 107 screw fit, the inside of extrusion swivel nut 108 is provided with sealed rubber plug 109, extrusion inclined plane 110 has been seted up to one side surface position of sealed rubber plug 109, line passageway 111 has been seted up to the inside of sealed rubber plug 109, line hole 112 has been seted up to one side surface position of extrusion swivel nut 108, the wire of amount of deflection sensor 5 alternates through line hole 112.
The sealing contact flange 201 is fixedly installed on the lower surface of the sealing cover plate 2, the outer side surface of the sealing contact flange 201 is tightly matched with the inner side surface of the installation groove 3, the positions, close to four corners, of the upper surface of the sealing cover plate 2 are provided with screw unthreaded holes 202 respectively, the screw unthreaded holes 202 correspond to the positions of the internal thread fixing holes 4 one by one, installation screws 203 are arranged inside the screw unthreaded holes 202 in an inserting mode, the outer surface of the fixing clamp ring 6 is fixedly provided with a screw extrusion plate 601, the outer surface of the screw extrusion plate 601 is provided with an extrusion through hole 602, the fixing clamp ring 6 can be fixed on the surface of a measured object by penetrating the extrusion through hole 602 through the screws, and therefore the fixing of the deflection sensor 5 is achieved.
The working principle is as follows: when the deflection sensor component designed by the chirped fiber grating is used, firstly, a device is required to be fixed on the surface of an object to be detected, a screw penetrates through the screw through-hole 104 to fixedly install the outer shell 1 of the component on the surface of the object, the deflection sensor 5 is always in a straight state under the tension of the tension spring 506, the deflection sensor 5 is pressed by the connecting pressing plate 513 under the elastic force of the pressing spring 514 to be tightly attached to the surface of the object to be detected, then, the screw penetrates through the pressing through-hole 602 to fixedly install the fixed clamping ring 6 on the surface of the object, so that the deflection sensor 5 is fixed, the installation of the deflection sensor 5 is completed, the whole course of the deflection sensor 5 is kept straight without bending loss, the fixed clamping ring 512 is pulled to compress the pressing spring 514, the connecting pressing plate 513 moves upwards, the fixed pin 515 moves out of the pin limiting hole 517, and the tensile force of the tension spring 506 is pulled to two sides, the connecting line of the deflection sensor 5 passes through the wiring hole 105 and the wiring channel 111 to extend out, the extrusion screw sleeve 108 is rotated, so that the sealing rubber plug 109 is plugged into the inner cavity of the fixed tube 106 under the pressurization of the extrusion screw sleeve 108, due to the inclination of the extrusion inclined surface 110, the sealing rubber plug 109 can gradually contract, the wiring channel 111 is tightened, the connecting line penetrating through the wiring channel 111 is sealed, the mounting screw 203 is rotated, the sealing cover plate 2 is mounted, and the mounting and the protection of the deflection sensor 5 are realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a degree of deflection sensor subassembly based on chirp fiber grating design, includes subassembly outside casing and closing cover, installation fluting and internal thread fixed orifices, its characterized in that have been seted up to the upper surface position of subassembly outside casing:
the internal activity of the outside casing of subassembly is provided with the amount of deflection sensor, the amount of deflection sensor with be provided with tensile alignment mechanism between the outside casing of subassembly, the outside activity card of amount of deflection sensor is established and is installed fixed snap ring, the lower surface position of the outside casing of subassembly is provided with flexible seal structure, the front surface position of the outside casing of subassembly is provided with the line pipe mechanism of walking that has sealing function.
2. A deflection sensor assembly based on a chirped fiber grating design according to claim 1, wherein: tensile alignment mechanism includes the mounting panel that hangs of fixed mounting at the inside upper surface position of subassembly outside casing, and hangs one side surface position of mounting panel and seted up the horizontal pole through-hole, the inside interlude of horizontal pole through-hole is provided with horizontal tensile pole, the one end surface position fixed mounting of horizontal tensile pole has the spacing dish of tip, the other end surface position fixed mounting of horizontal tensile pole has the installation vertical plate.
3. A deflection sensor assembly based on a chirped fiber grating design according to claim 2, wherein: the outside of horizontal tensile pole is located to hang and is established between mounting panel and the vertical board of installation and install extension spring, and extension spring's both ends respectively with hang the mounting panel and install the fixed surface of vertical board and be connected, the lower fixed surface position of installing the vertical board is installed horizontal installation board, the depression bar through-hole has been seted up to horizontal installation board's upper surface position.
4. A deflection sensor assembly according to claim 3 wherein the sensor assembly is based on a chirped fiber grating design, wherein: the inner part of the pressing rod through hole is movably and alternately provided with a vertical pressing column, the upper end surface position of the vertical pressing column is fixedly provided with a lifting connecting plate, the upper surface position of the lifting connecting plate is fixedly provided with a fixing column, and the upper end surface position of the fixing column is fixedly provided with a fixing shackle.
5. A deflection sensor assembly according to claim 4 wherein the sensor assembly is based on a chirped fiber grating design, wherein: the lower extreme surface position fixed mounting of vertical compression leg has the connection clamp plate, the outside of vertical compression leg is located the horizontal mounting board and is connected the cover between the clamp plate and establish and install the extrusion spring, the lower surface position fixed mounting of connection clamp plate has fixed pin, the surface position fixed mounting of amount of deflection sensor has the tensile post ear, and the upper surface position of tensile post ear has seted up the spacing hole of pin, fixed pin alternates to set up inside the spacing hole of pin.
6. A deflection sensor assembly based on a chirped fiber grating design according to claim 1, wherein: the flexible sealing structure comprises a vertical rubber wall fixedly mounted at the lower surface of the outer shell of the component, the vertical rubber wall is matched with the cross section of the lower surface of the outer shell of the component, a vertical rubber wall is fixedly mounted at the lower surface of the vertical rubber wall, a sealing pressure plate is arranged at the upper surface of the vertical rubber wall, screw through holes are formed in the surfaces of the vertical rubber wall and the sealing pressure plate, and the screw through hole positions of the vertical rubber wall and the sealing pressure plate correspond to each other.
7. A deflection sensor assembly based on a chirped fiber grating design according to claim 1, wherein: walk line pipe mechanism including seting up the line hole of walking of the front surface position of the outside casing of subassembly, and the front surface position of the outside casing of subassembly is located the outside fixed mounting who walks the line hole and has fixed pipe, the installation external screw thread has been seted up to the surface position of fixed pipe, the outside spiral shell of fixed pipe is established and is installed the extrusion swivel nut, and extrusion swivel nut and installation external screw thread spiral cooperation, the inside of extrusion swivel nut is provided with sealed rubber buffer, the extrusion inclined plane has been seted up to a side surface position of sealed rubber buffer, the line passageway has been seted up to the inside of sealed rubber buffer, a side surface position of extrusion swivel nut has seted up logical line hole.
8. A deflection sensor assembly based on a chirped fiber grating design according to claim 1, wherein: the lower surface fixed mounting of closing cap has the sealed contact flange, and the tight cooperation of the outside surface of sealed contact flange and installation grooved inboard surface, the upper surface of closing cap is close to four corners position and equally divides and has do not seted up the screw unthreaded hole, the screw unthreaded hole with the position one-to-one of internal thread fixed orifices, the inside interlude of screw unthreaded hole is provided with mounting screw, the outer surface fixed mounting of fixed snap ring has the screw stripper plate, and the surface position of screw stripper plate has seted up the extrusion through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111511863.1A CN114111616A (en) | 2021-12-11 | 2021-12-11 | Deflection sensor assembly based on chirped fiber grating design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111511863.1A CN114111616A (en) | 2021-12-11 | 2021-12-11 | Deflection sensor assembly based on chirped fiber grating design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114111616A true CN114111616A (en) | 2022-03-01 |
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ID=80364165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111511863.1A Withdrawn CN114111616A (en) | 2021-12-11 | 2021-12-11 | Deflection sensor assembly based on chirped fiber grating design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114111616A (en) |
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2021
- 2021-12-11 CN CN202111511863.1A patent/CN114111616A/en not_active Withdrawn
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Application publication date: 20220301 |
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| WW01 | Invention patent application withdrawn after publication |