CN209416383U - A kind of fiber-optic grating sensor inscription detection positioning demodulating equipment - Google Patents
A kind of fiber-optic grating sensor inscription detection positioning demodulating equipment Download PDFInfo
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- CN209416383U CN209416383U CN201822148233.2U CN201822148233U CN209416383U CN 209416383 U CN209416383 U CN 209416383U CN 201822148233 U CN201822148233 U CN 201822148233U CN 209416383 U CN209416383 U CN 209416383U
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- 238000001514 detection method Methods 0.000 title claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 82
- 238000004804 winding Methods 0.000 claims abstract description 43
- 239000013307 optical fiber Substances 0.000 claims abstract description 26
- 230000003287 optical effect Effects 0.000 claims abstract description 7
- 230000001360 synchronised effect Effects 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012372 quality testing Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model relates to a kind of fiber-optic grating sensors to inscribe detection positioning demodulating equipment, including optical fiber, fiber-optic grating sensor, fiber grating demodulation device, the first fiber winding disk, the second fiber winding disk, display；First fiber winding disk and the second fiber winding disk are respectively fixedly disposed at optical fiber both ends, first fiber winding disk is for storing optical fiber and unwrapping wire, for second fiber winding disk for storing optical fiber and take-up, first fiber winding disk and the second fiber winding disk are driven by synchronous motor carries out unwrapping wire or take-up；Multiple fiber-optic grating sensors are provided in the optical fiber, the optical fiber is connect with the optical output port of fiber grating demodulation device；The fiber grating demodulation device is connected with display, and wavelength and location information of the fiber grating demodulation device for the return of demodulating fiber bragg grating sensor, the display are used to show the image of the wavelength that fiber grating demodulation device is demodulated and positioning.
Description
Technical field
The utility model relates to fiber-optic grating sensor detection technique fields, and in particular to a kind of fiber-optic grating sensor quarter
Write detection positioning demodulating equipment.
Background technique
Fiber-optic grating sensor has the characteristics that electromagnetism interference, electrical insulation capability are good, corrosion-resistant, transmission loss is small, tool
There are the advantage and application range that other sensors are incomparable.With the development of Fiber Grating Sensors Technology, for production
Large-capacity fiber grating sensing device array, be all by segmentation after production, piecewise demodulation respectively is with detection fiber
The recording quality of grating sensor, this method is inconvenient, and not only time-consuming consumption manpower, long-time operation be easy to cause eyes
Fatigue, to influence accuracy rate.
Utility model content
The purpose of this utility model is that aiming at the problems existing in the prior art, proposing that a kind of fiber-optic grating sensor is carved
Detection positioning demodulating equipment is write, quality testing is carried out to the fiber-optic grating sensor inscribed online, has that demodulation speed is fast, is
The features such as system capacity is big, stability is good, apparatus structure is simple.
In order to solve the above technical problems, a kind of fiber-optic grating sensor disclosed by the utility model inscribes detection positioning demodulation
Device, including optical fiber, fiber-optic grating sensor, fiber grating demodulation device, the first fiber winding disk, the second fiber winding disk, display；
First fiber winding disk and the second fiber winding disk are respectively fixedly disposed at optical fiber both ends, and first fiber winding disk is for receiving
Nano fiber and unwrapping wire, for storing optical fiber and take-up, first fiber winding disk and the second fiber winding disk pass through second fiber winding disk
Synchronous motor, which drives, carries out unwrapping wire or take-up；
Multiple fiber-optic grating sensors are provided in the optical fiber, the optical path of the optical fiber and fiber grating demodulation device is defeated
Exit port connection；
The fiber grating demodulation device is connected with display, and the fiber grating demodulation device is used for demodulating fiber bragg grating
The wavelength and location information that sensor returns, the display are used to show the wavelength and determine that fiber grating demodulation device is demodulated
The image of position.
It preferably, further include motor control assembly for controlling synchronous motor start and stop.
Preferably, the light source of fiber grating demodulation device is the tunable optical source that can carry out constant velocity linear's scanning, wavelength
Resolution ratio is 1pm, and length scanning speed is 10pm/2us.
Preferably, the scanning wavelength range includes in the preset central wavelength of fiber-optic grating sensor and practical inscription
Central wavelength after wavelength shift occurs.
Preferably, the sweep spacing is 20pm.
Beneficial effect is: carrying out unwrapping wire and take-up by the first fiber winding disk and the second fiber winding disk, saves manual operation, reduces
Working strength, convenient for checking for a long time；Fiber-optic grating sensor figure is continuously displayed by fiber grating demodulation device and display
Picture, operator can observe directly fiber-optic grating sensor image by display, effectively avoid caused by long-time operation
Eye fatigue guarantees that fiber-optic grating sensor inscribes accuracy rate.When the fiber grating biography for detecting inscription by display observation
When sensor is off quality, operator can control motor by motor control assembly and stop, so that the first fiber winding disk
Stop unwrapping wire and take-up with the second fiber winding disk, realizes and fiber-optic grating sensor is accurately positioned.Online to the optical fiber light inscribed
Gate sensor carries out quality testing, has the characteristics that demodulation speed is fast, power system capacity is big, stability is good, apparatus structure is simple.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 1-optical fiber, 2-fiber-optic grating sensors, 3-fiber grating demodulation devices, the 4-the first fiber winding disk, 5-
Second fiber winding disk, 6-displays, 7-motor control assemblies.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
As shown in Figure 1, a kind of fiber-optic grating sensor of the utility model inscribes detection positioning demodulating equipment, including optical fiber
1, fiber-optic grating sensor 2, fiber grating demodulation device 3, the first fiber winding disk 4, the second fiber winding disk 5, display 6；
First fiber winding disk 4 and the second fiber winding disk 5 are respectively fixedly disposed at 1 both ends of optical fiber, and first fiber winding disk 4 is used
In storage optical fiber 1 and unwrapping wire, second fiber winding disk 5 for storing optical fiber 1 and take-up, first fiber winding disk 4 and second around
Fine disk 5 is driven by synchronous motor and carries out unwrapping wire or take-up；
Multiple fiber-optic grating sensors 2, the light of the optical fiber 1 and fiber grating demodulation device 3 are provided in the optical fiber 1
The connection of road output port；
The fiber grating demodulation device 3 is connected with display 6, and the fiber grating demodulation device 3 is for demodulating optical fiber
The wavelength and location information that grating sensor 2 returns, the display 6 is for showing what fiber grating demodulation device 3 was demodulated
Wavelength and the image of positioning.
It further include motor control assembly 7 for controlling synchronous motor start and stop.
The light source of fiber grating demodulation device 3 is the tunable optical source that can carry out constant velocity linear's scanning, wavelength resolution
For 1pm, length scanning speed is 10pm/2us.
The scanning wavelength range includes that wave occurs in the preset central wavelength of fiber-optic grating sensor 2 and practical inscription
Central wavelength after long offset.
The sweep spacing is 20pm, and scanning wavelength range will be according to 2 central wavelength of fiber-optic grating sensor detected
Determine, scanning wavelength range include fiber-optic grating sensor 2 preset central wavelength and it is practical inscribe in that wavelength occurs is inclined
Central wavelength after shifting, such as the fiber-optic grating sensor 2 of 1550nm, wave deflection device deviate the fiber-optic grating sensor 2
500pm, 2 wavelength of fiber-optic grating sensor become 1550.5nm, then scanning wavelength range should include 1550~
1550.5nm。
The principles of the present invention are as follows: unwrapping wire and take-up are carried out by the first fiber winding disk 4 and the second fiber winding disk 5, work as movement
When at the central wavelength generation drift of fiber-optic grating sensor 2, reach in wavelength domain as it can be seen that fiber grating demodulation device 3 is right
The fiber-optic grating sensor 2 reflection spectral coverage is locked, and narrow-band light source carries out near the fiber-optic grating sensor 2 reflection spectral coverage
Quickly scanning, while the optical time domain reflection signal of fiber grating demodulation device 3 is to being spliced into reflectance spectrum, further according to being reflected back
The wavelength information come carries out the positioning of fiber-optic grating sensor 2, and last fiber grating demodulation device 3 is demodulated, thus quickly
Detect fiber-optic grating sensor recording quality parameter, display 6 is shown according to the result that fiber grating demodulation device 3 transmits
Show.When fiber grating demodulation device 3 judges that fiber-optic grating sensor 2 is normal, then is not processed, the first fiber winding disk 4 continue unwrapping wire,
Second fiber winding disk 5 continues take-up；When judging that fiber-optic grating sensor 2 is abnormal, then by the control first of motor control assembly 7 around fibre
Disk 4 and the second fiber winding disk 5 stop operating, and the position of fiber-optic grating sensor 2 is allowed to rest on the first fiber winding disk 4 and the second fiber winding disk
It is convenient to be handled for the fiber-optic grating sensor 2 in 5.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (4)
1. a kind of fiber-optic grating sensor inscribes detection positioning demodulating equipment, it is characterised in that: including optical fiber (1), fiber grating
Sensor (2), fiber grating demodulation device (3), the first fiber winding disk (4), the second fiber winding disk (5), display (6)；
First fiber winding disk (4) and the second fiber winding disk (5) are respectively fixedly disposed at optical fiber (1) both ends, first fiber winding disk
(4) for storing optical fiber (1) and unwrapping wire, second fiber winding disk (5) is for storing optical fiber (1) and take-up, and described first around fibre
Disk (4) and the second fiber winding disk (5) are driven by synchronous motor carries out unwrapping wire or take-up；
It is provided with multiple fiber-optic grating sensors (2) in the optical fiber (1), the optical fiber (1) and fiber grating demodulation device (3)
Optical output port connection；
The fiber grating demodulation device (3) is connected with display (6), and the fiber grating demodulation device (3) is for solving light modulation
The wavelength and location information that fiber grating sensor (2) returns, the display (6) is for showing fiber grating demodulation device (3)
The image of the wavelength and positioning that are demodulated.
2. a kind of fiber-optic grating sensor according to claim 1 inscribes detection positioning demodulating equipment, it is characterised in that: also
Including motor control assembly (7) for controlling synchronous motor start and stop.
3. a kind of fiber-optic grating sensor according to claim 1 inscribes detection positioning demodulating equipment, it is characterised in that: light
The light source of fine grating demodulation device (3) is the tunable optical source that can carry out constant velocity linear's scanning, wavelength resolution 1pm, wave
Long scan speed is 10pm/2us.
4. a kind of fiber-optic grating sensor according to claim 3 inscribes detection positioning demodulating equipment, it is characterised in that: institute
Stating wavelength scanning range includes after wavelength shift occurs in fiber-optic grating sensor (2) preset central wavelength and practical inscription
Central wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822148233.2U CN209416383U (en) | 2018-12-20 | 2018-12-20 | A kind of fiber-optic grating sensor inscription detection positioning demodulating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822148233.2U CN209416383U (en) | 2018-12-20 | 2018-12-20 | A kind of fiber-optic grating sensor inscription detection positioning demodulating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209416383U true CN209416383U (en) | 2019-09-20 |
Family
ID=67938964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822148233.2U Active CN209416383U (en) | 2018-12-20 | 2018-12-20 | A kind of fiber-optic grating sensor inscription detection positioning demodulating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209416383U (en) |
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2018
- 2018-12-20 CN CN201822148233.2U patent/CN209416383U/en active Active
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