CN113670575A - Fiber grating dynamic change demodulating equipment - Google Patents
Fiber grating dynamic change demodulating equipment Download PDFInfo
- Publication number
- CN113670575A CN113670575A CN202110752792.8A CN202110752792A CN113670575A CN 113670575 A CN113670575 A CN 113670575A CN 202110752792 A CN202110752792 A CN 202110752792A CN 113670575 A CN113670575 A CN 113670575A
- Authority
- CN
- China
- Prior art keywords
- mounting
- cover
- rear end
- cover plate
- box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000012360 testing method Methods 0.000 description 7
- 238000005057 refrigeration Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
-
- 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
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
Abstract
The invention discloses a fiber grating dynamic change demodulation device in the technical field of fiber grating sensing, which comprises: mounting a box; the front end cover is arranged on the end face of the mounting box; the processing equipment mounting cover is mounted at the top of the mounting box, and a small industrial computer is mounted on the inner side of the processing equipment mounting cover; the rear end cover is arranged at one end, far away from the front end cover, of the mounting box; the processing apparatus mounting cover includes: a cover plate; the two mounting shafts are symmetrically arranged at the bottoms of the two side walls of the cover plate from left to right; the first mounting groove is formed in the front side face of the cover plate; the second permanent magnet is embedded on one side, far away from the mounting shaft, of the front side face of the cover plate.
Description
Technical Field
The invention relates to the technical field of fiber grating sensing, in particular to a fiber grating dynamic change demodulation device.
Background
The fiber grating sensor belongs to one type of fiber sensors, and the sensing process based on the fiber grating obtains sensing information by modulating fiber Bragg wavelength through external physical parameters, and is a wavelength modulation type fiber sensor.
The demodulator is a device that restores a low-frequency digital signal modulated in a high-frequency digital signal by a digital signal processing technique. Demodulators are widely used for the transmission and reproduction of information such as broadcast (audio signals), television (video signals) and the like. Demodulators are typically used in pairs with modulators that process digital signals onto high frequency signals for transmission, and demodulators that restore the digital signals to their original signals.
The existing fiber grating demodulator needs to be matched with a computer or a notebook computer when demodulating the fiber grating, can only be operated in a laboratory, is inconvenient to carry, and cannot demodulate and test the fiber grating at any time and any place.
Disclosure of Invention
The invention aims to provide a fiber grating dynamic change demodulation device to solve the problems that the existing fiber grating demodulator in the background art needs to be matched with a computer or a notebook when demodulating the fiber grating, can only be operated in a laboratory, is inconvenient to carry and cannot demodulate and test the fiber grating at any time and any place.
In order to achieve the purpose, the invention provides the following technical scheme: a fiber grating dynamic variation demodulation device comprises:
mounting a box;
the front end cover is arranged on the end face of the mounting box;
the processing equipment mounting cover is mounted at the top of the mounting box, and a small industrial computer is mounted on the inner side of the processing equipment mounting cover;
the rear end cover is arranged at one end, far away from the front end cover, of the mounting box;
four landing legs, four the landing leg is installed the bottom four corners of mounting box.
Preferably, the mounting box includes:
a box body;
the placing groove is formed in the middle end of the top of the box body, and a first permanent magnet is mounted at one end of the bottom of the inner side of the placing groove;
the two mounting holes are symmetrically arranged on the left side wall and the right side wall of one end, far away from the first permanent magnet, of the inner side of the placing groove.
Preferably, the processing apparatus mounting cover includes:
a cover plate;
the two mounting shafts are symmetrically arranged at the bottoms of the two side walls of the cover plate from left to right;
the first mounting groove is formed in the front side face of the cover plate;
the second permanent magnet is embedded on one side, far away from the mounting shaft, of the front side face of the cover plate.
Preferably, the rear end cap includes:
a rear end cap body;
the two second mounting grooves are symmetrically arranged on the left side and the right side of the front side surface of the rear end cover body in a left-right mode, fans are mounted on the inner side surfaces of the two second mounting grooves, and the front surfaces of the fans are flush with the front surface of the rear end cover body;
two thermoelectric refrigeration pieces, two the thermoelectric refrigeration piece one-to-one install two on the inboard rear end face of second mounting groove, the refrigeration face of thermoelectric refrigeration piece with the fan is corresponding.
Preferably, the leg comprises:
an outer sleeve;
the supporting rod is arranged in the inner cavity of the outer sleeve, and the top of the supporting rod penetrates through the top of the outer sleeve;
the mounting plate is in threaded connection with the top of the supporting rod;
the spring is arranged in the inner cavity of the outer sleeve, and the top of the spring is in contact with the bottom of the supporting rod;
the bottom cover is in threaded connection with the bottom of the outer sleeve, the top of the bottom cover is in contact with the bottom of the spring, and a non-slip pad is embedded in the bottom of the bottom cover.
Compared with the prior art, the invention has the beneficial effects that: the portable fiber bragg grating demodulation test device is convenient to carry, can demodulate and test the fiber bragg grating at any time and any place, and the cover plate is arranged on the inner side of the placing groove; the first two installation shafts are symmetrically arranged at the bottoms of the two side walls of the cover plate from left to right, the installation shafts and the cover plate are integrally processed, the installation shafts correspond to the installation holes, the installation shafts are matched with the installation holes, the installation shafts are installed on the inner sides of the installation holes through bearings, the cover plate is installed on the inner side of the placing groove through the matching of the installation shafts and the installation holes, the cover plate can be overturned by taking the installation shafts and the installation holes as axes, when the cover plate is not used, the cover plate covers the inner side of the placing groove, and when the cover plate is used, the cover plate is overturned, so that the cover plate and the placing groove are placed at a certain included angle; the first mounting groove is formed in the front side face of the cover plate, when the cover plate covers the inner side of the placing groove, the first mounting groove faces the placing groove, a handle is mounted on one side, far away from the first mounting groove, of the cover plate, the small industrial personal computer is mounted on the inner side of the first mounting groove, the small industrial personal computer is of a ZTS13300 type, and the small industrial personal computer does not need to be connected with a computer or a notebook computer, is convenient to carry, and can demodulate and test the fiber bragg grating anytime and anywhere; the second permanent magnet is inlayed in the leading flank of apron and is kept away from the one side of installation axle, and the second permanent magnet is in same one side with first mounting groove, and the second permanent magnet is corresponding with first permanent magnet, and the magnetic pole of second permanent magnet is opposite with the magnetic pole of first permanent magnet, and when the apron covers the inboard at the standing groove, the second permanent magnet contacted with first permanent magnet, fixes the apron, and during the use, handheld handle upset apron hard for the second permanent magnet separates with first permanent magnet, opens the apron.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a mounting box according to the present invention;
FIG. 3 is a schematic view of the structure of the installation cover of the processing apparatus of the present invention;
FIG. 4 is a schematic structural view of a rear end cap according to the present invention;
fig. 5 is a schematic view of the structure of the leg of the present invention.
In the figure: 100 mounting boxes, 110 mounting boxes, 120 placing grooves, 130 mounting holes, 200 front end covers, 300 processing equipment mounting covers, 310 cover plates, 320 mounting shafts, 330 first mounting grooves, 340 second permanent magnets, 400 rear end covers, 410 rear end cover bodies, 420 second mounting grooves, 430 thermoelectric cooling fins, 500 support legs, 510 outer sleeves, 520 support rods, 530 mounting plates, 540 springs and 550 bottom covers.
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.
The invention provides a demodulation device for dynamic change of fiber grating, which is convenient to carry and can perform demodulation test on the fiber grating at any time and any place, please refer to fig. 1, comprising: (ii) a
Referring to fig. 1-2, the mounting box 100 includes:
the cartridge 110 is a hollow cartridge;
the placing groove 120 is formed in the top middle end of the box body 110, and a first permanent magnet is mounted at one end of the bottom of the inner side of the placing groove 120;
the two mounting holes 130 are symmetrically arranged on the left side wall and the right side wall of one end of the inner side of the placing groove 120 far away from the first permanent magnet;
referring to fig. 1 again, the front cap 200 is mounted on the end surface of the box body 110 by bolts, and the front cap 200 and the box body 110 are sealed;
referring to fig. 1 to 3, a process apparatus mounting cover 300 is mounted on the top of the mounting box 100, a small-sized industrial personal computer is mounted on the inner side of the process apparatus mounting cover 300, and the process apparatus mounting cover 300 includes:
the cover plate 310 is installed at the inner side of the placement groove 120;
the two mounting shafts 320 are symmetrically arranged at the bottoms of the two side walls of the cover plate 310 from left to right, the mounting shafts 320 and the cover plate 310 are integrally processed, the mounting shafts 320 correspond to the mounting holes 130, the mounting shafts 320 are matched with the mounting holes 130, the mounting shafts 320 are mounted on the inner sides of the mounting holes 130 through bearings, the cover plate 310 is mounted on the inner side of the placing groove 120 through matching of the mounting shafts 320 and the mounting holes 130, the cover plate 310 can be turned over by using the mounting shafts 320 and the mounting holes 130 as an axis, when the cover plate 310 is not used, the cover plate 310 covers the inner side of the placing groove 120, and when the cover plate 310 is used, the cover plate 310 is turned over, so that the cover plate 310 and the placing groove 120 are placed at a certain included angle;
the first mounting groove 330 is arranged on the front side surface of the cover plate 310, when the cover plate 310 covers the inner side of the placing groove 120, the first mounting groove 330 faces the placing groove 120, a handle is mounted on one side of the cover plate 310 far away from the first mounting groove 330, the small industrial personal computer is mounted on the inner side of the first mounting groove 330, the model of the small industrial personal computer is ZTS13300, and the small industrial personal computer is not required to be externally connected with a computer or a notebook computer, is convenient to carry and can demodulate and test the fiber bragg grating at any time and any place;
the second permanent magnet 340 is embedded on one side, far away from the mounting shaft 320, of the front side surface of the cover plate 310, the second permanent magnet 340 and the first mounting groove 330 are on the same side, the second permanent magnet 340 corresponds to the first permanent magnet, the magnetic pole of the second permanent magnet 340 is opposite to that of the first permanent magnet, when the cover plate 310 covers the inner side of the placing groove 120, the second permanent magnet 340 is in contact with the first permanent magnet to fix the cover plate 310, when the cover plate 310 is used, the cover plate 310 is turned over by holding a handle with a hand, so that the second permanent magnet 340 is separated from the first permanent magnet, and the cover plate 310 is opened;
referring to fig. 1, 2 and 4, the rear cover 400 is mounted on the mounting box 100 at an end far from the front cover 200, and the rear cover 400 includes:
the rear end cover body 410 is mounted on one end of the box body 110 far away from the front end cover 200 through bolts, sealing processing is performed between the rear end cover body 410 and the box body 110, and dust can be effectively prevented from entering an inner cavity of the box body 110 through a sealing structure formed among the rear end cover body 410, the front end cover 200 and the box body 110, so that damage of the dust to electric elements mounted in the box body 110 is isolated;
the left side and the right side of the front side of the rear end cover body 410 are symmetrically arranged on the left side and the right side of the two second mounting grooves 420, fans are mounted on the inner side surfaces of the two second mounting grooves 420, and the front surfaces of the fans are flush with the front surface of the rear end cover body 410;
the two thermoelectric cooling fins 430 are correspondingly arranged on the rear end surfaces of the inner sides of the two second mounting grooves 420 one by one, the cooling surfaces of the thermoelectric cooling fins 430 correspond to the fans, the fans blow the cold air produced by the thermoelectric cooling fins 430 to the inner cavity of the box body 110 to cool the inner cavity of the box body 110, the inner cavity of the box body 110 can be cooled under the condition of complete sealing, the temperature inside the box body 110 is guaranteed, and meanwhile dust in the air can be prevented from entering the inner cavity of the box body 110;
referring to fig. 1, 2 and 5, four legs 500 are installed at four corners of the bottom of the mounting box 100, and the legs 500 include:
the outer sleeve 510 is a hollow outer sleeve;
the support rod 520 is arranged in the inner cavity of the outer sleeve 510, the top of the support rod 520 penetrates through the top of the outer sleeve 510, the support rod 520 is an inverted T-shaped support rod, and a cross rod at the bottom of the support rod is arranged in the inner cavity of the outer sleeve 510 to limit the support rod 520 and prevent the support rod 520 from falling off from the inner part of the outer sleeve 510;
the mounting plate 530 is screwed on the top of the support rod 520, the mounting plate 530 is fixedly mounted at the bottom of the box body 110 through bolts, the support rod 520 is mounted at the bottom of the box body 110 through the mounting plate 530, and the outer sleeve 510 is mounted at the bottom of the box body 110 through the support rod 520;
the spring 540 is arranged in the inner cavity of the outer sleeve 510, the top of the spring 540 is contacted with the bottom of the supporting rod 520, and the spring 540 is used for damping, so that the influence of vibration on measurement data can be effectively reduced in the working process, and the measurement precision is improved;
the bottom cover 550 is screwed on the bottom of the outer sleeve 510, the top of the bottom cover 550 contacts the bottom of the spring 540, the bottom of the bottom cover 550 is embedded with a non-slip pad, and the bottom cover 550 contacts the ground or the table top.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. A fiber grating dynamic change demodulation device is characterized in that: the method comprises the following steps:
a mounting box (100);
the front end cover (200), the said front end cover (200) is installed on the end of the said mounting box (100);
the processing equipment mounting cover (300), the processing equipment mounting cover (300) is mounted at the top of the mounting box (100), and a small industrial personal computer is mounted on the inner side of the processing equipment mounting cover (300);
the rear end cover (400), the rear end cover (400) is installed on one end of the mounting box (100) far away from the front end cover (200);
four supporting legs (500), four supporting legs (500) are installed at four corners of the bottom of the installation box (100).
2. The apparatus according to claim 1, wherein: the mounting box (100) comprises:
a cartridge body (110);
the placing groove (120) is formed in the middle end of the top of the box body (110), and a first permanent magnet is mounted at one end of the bottom of the inner side of the placing groove (120);
the two mounting holes (130) are symmetrically arranged on the left side wall and the right side wall of one end, far away from the first permanent magnet, of the inner side of the placing groove (120).
3. The apparatus according to claim 1, wherein: the processing apparatus mounting cover (300) includes:
a cover plate (310);
the two mounting shafts (320) are symmetrically arranged at the bottoms of the two side walls of the cover plate (310) from left to right;
the first mounting groove (330) is formed in the front side surface of the cover plate (310);
the second permanent magnet (340), the second permanent magnet (340) inlays at the front side of apron (310) keep away from the one side of installation axle (320).
4. The apparatus according to claim 1, wherein: the rear end cap (400) includes:
a rear end cap body (410);
the two second mounting grooves (420) are symmetrically arranged on the left side and the right side of the front side surface of the rear end cover body (410), fans are mounted on the inner side surfaces of the two second mounting grooves (420), and the front surfaces of the fans are flush with the front surface of the rear end cover body (410);
the two thermoelectric cooling plates (430) are correspondingly arranged on the rear end surfaces of the inner sides of the second mounting grooves (420), and the cooling surfaces of the thermoelectric cooling plates (430) correspond to the fans.
5. The apparatus according to claim 1, wherein: the leg (500) comprises:
an outer sleeve (510);
a support rod (520), wherein the support rod (520) is arranged in the inner cavity of the outer sleeve (510), and the top of the support rod (520) penetrates through the top of the outer sleeve (510);
a mounting plate (530), the mounting plate (530) being screwed on top of the support bar (520);
a spring (540), the spring (540) being mounted in the inner cavity of the outer sleeve (510), the top of the spring (540) being in contact with the bottom of the support rod (520);
the bottom cover (550) is screwed at the bottom of the outer sleeve (510), the top of the bottom cover (550) is contacted with the bottom of the spring (540), and the bottom of the bottom cover (550) is embedded with a non-slip pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110752792.8A CN113670575A (en) | 2021-07-02 | 2021-07-02 | Fiber grating dynamic change demodulating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110752792.8A CN113670575A (en) | 2021-07-02 | 2021-07-02 | Fiber grating dynamic change demodulating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113670575A true CN113670575A (en) | 2021-11-19 |
Family
ID=78538493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110752792.8A Pending CN113670575A (en) | 2021-07-02 | 2021-07-02 | Fiber grating dynamic change demodulating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113670575A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203519882U (en) * | 2013-11-11 | 2014-04-02 | 交通运输部公路科学研究所 | Optical fiber quick-splicing and testing device |
| CN208398908U (en) * | 2018-07-09 | 2019-01-18 | 南京硅源光电技术有限公司 | A kind of fiber Bragg grating (FBG) demodulator |
| CN110650361A (en) * | 2019-10-30 | 2020-01-03 | 徐州格利尔科技有限公司 | Set top box capable of efficiently dissipating heat |
| CN210802723U (en) * | 2019-12-12 | 2020-06-19 | 西安双愉光电科技有限公司 | High-temperature fiber grating sensor demodulator |
| WO2021017490A1 (en) * | 2019-07-29 | 2021-02-04 | 华为技术有限公司 | Terminal box |
-
2021
- 2021-07-02 CN CN202110752792.8A patent/CN113670575A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203519882U (en) * | 2013-11-11 | 2014-04-02 | 交通运输部公路科学研究所 | Optical fiber quick-splicing and testing device |
| CN208398908U (en) * | 2018-07-09 | 2019-01-18 | 南京硅源光电技术有限公司 | A kind of fiber Bragg grating (FBG) demodulator |
| WO2021017490A1 (en) * | 2019-07-29 | 2021-02-04 | 华为技术有限公司 | Terminal box |
| CN110650361A (en) * | 2019-10-30 | 2020-01-03 | 徐州格利尔科技有限公司 | Set top box capable of efficiently dissipating heat |
| CN210802723U (en) * | 2019-12-12 | 2020-06-19 | 西安双愉光电科技有限公司 | High-temperature fiber grating sensor demodulator |
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