CN109270320A - A kind of fiber grating measuring device can be used for transmission line of electricity - Google Patents
A kind of fiber grating measuring device can be used for transmission line of electricity Download PDFInfo
- Publication number
- CN109270320A CN109270320A CN201811293882.XA CN201811293882A CN109270320A CN 109270320 A CN109270320 A CN 109270320A CN 201811293882 A CN201811293882 A CN 201811293882A CN 109270320 A CN109270320 A CN 109270320A
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- Prior art keywords
- coupler
- sensing module
- optical fiber
- transmission line
- electromagnetic sensing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/24—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a kind of fiber grating measuring devices that can be used for transmission line of electricity, including optical fiber main push-towing rope, electromagnetic sensing module and optical splitter, the optical fiber main push-towing rope is provided with electromagnetic sensing module, the first coupler and the second coupler are separately installed on the route at electromagnetic sensing module both ends, monochromatic filter is provided between first coupler and electromagnetic sensing module, the present invention, it is a kind of using optical fiber as the optical fiber grating sensing measuring device of medium, since optical fiber is passive, so higher than electronic sensor with precision using the accuracy of the surveyed physical quantity of the device.The grating region that optical fiber is utilized simultaneously is influenced to will lead to the principle to change by the wavelength of the reflected light of grating by measurand, the curent change of tested transmission line of electricity can be monitored in real time in the change for analyzing the corresponding environmental factor of reflected light wavelength shift.
Description
Technical field
The present invention relates to optical fiber sensing detection technology field, specifically a kind of fiber grating measurement that can be used for transmission line of electricity
Device.
Background technique
In the power system, transmission line of electricity is generally high pressure or supertension line, abnormal in case of electric current and make
At circuit overload or other problems, it will very serious hidden danger is generated, so the detection to transmission line of electricity is most important.Due to
Transmission line of electricity is constant in there is current status, and present invention utilizes the magnetic field effects of transmission line of electricity, in each needs of transmission line of electricity
Fiber grating electromagnetic sensing module is installed, since optical fiber is without source effect, so utilizing light made of optical fiber on the node of detection
Fine grating electromagnetic sensing module not will receive the influence of galvanomagnetic-effect, may be implemented to the safe and effective of transmission line of electricity electric current
Long-term real-time monitoring.
Summary of the invention
The purpose of the present invention is to provide a kind of fiber grating measuring devices that can be used for transmission line of electricity, to solve existing skill
The problems in art.
To achieve the above object, the invention provides the following technical scheme: a kind of fiber grating that can be used for transmission line of electricity is surveyed
Device, including optical fiber main push-towing rope, electromagnetic sensing module and optical splitter are measured, the optical fiber main push-towing rope is provided with electromagnetic sensing module, described
The first coupler and the second coupler, first coupler and electromagnetism are separately installed on the route at electromagnetic sensing module both ends
It is provided with monochromatic filter between sensing module, is provided with analyzer between the electromagnetic sensing module and the second coupler, institute
It states first coupler one end and is electrically connected with the first WDM coupler, the first WDM coupler side is equipped with frequency modulation light source, institute
It states the second coupler output and is electrically connected with the 2nd WDM coupler, the 2nd WDM coupler side is provided with optical splitter,
The optical splitter side is electrically connected with CCD, and the side CCD is provided with the end PC.
It preferably, can multiple electromagnetic sensing modules in parallel on the optical fiber main push-towing rope.
Preferably, corresponding monochromatic filter is mixed per coupler all the way.
Preferably, power transmission cable is equipped with multiple nodes, and node is equidistantly divided and is located on power transmission cable.
Preferably, the electromagnetic sensing module uses Magnetic Sensor.
Compared with prior art, the beneficial effects of the present invention are: the present invention is a kind of using optical fiber as the fiber grating of medium
Sense measuring device, since optical fiber is passive, so the accuracy and precision using the surveyed physical quantity of the device compare electronics
Formula sensor is higher.The grating region that optical fiber is utilized simultaneously is influenced to will lead to the reflected light by grating by measurand
The principle that changes of wavelength, analyze the change of the corresponding environmental factor of reflected light wavelength shift, can be monitored in real time by
Survey the curent change of transmission line of electricity.
Detailed description of the invention
Fig. 1 is overall structure block diagram of the invention.
In figure: 1- optical fiber main push-towing rope, the first coupler of 2-, the first WDM coupler of 3-, 4- frequency modulation light source, 5- monochromatic filter,
6- electromagnetic sensing module, 7- analyzer, 8- optical splitter, the end 9-CCD, 10-PC, the second coupler of 12-, the 2nd WDM of 13- coupling
Device.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, in the embodiment of the present invention, a kind of fiber grating measuring device can be used for transmission line of electricity, including light
Fine main push-towing rope 1, electromagnetic sensing module 6 and optical splitter 8, optical fiber main push-towing rope 1 are equipped with electromagnetic sensing module 6, have used the grating region of optical fiber
Domain is influenced to will lead to the principle to change by the wavelength of the reflected light of grating by measurand, carries out detection electromagnetism electricity
It flows, is separately installed with the first coupler 2 and the second coupler 12,2 He of the first coupler on the route at 6 both ends of electromagnetic sensing module
It is provided with monochromatic filter 5 between electromagnetic sensing module 6, each optical path can be made to pass through the monochromatic light of a certain specific wavelength, electromagnetism
Be provided with analyzer 7 between sensing module 6 and the second coupler 12, for examine certain light beam whether polarised light, first coupling
2 one end of device is electrically connected with the first WDM coupler 3, and 3 side of the first WDM coupler is equipped with frequency modulation light source 4, the second coupler 12
Output end is electrically connected with the 2nd WDM coupler 13, and 13 side of the 2nd WDM coupler is provided with optical splitter 8, can be according to each
Monochromatic intensity sorts to each monitoring node, and 8 side of optical splitter is electrically connected with CCD9, and the side CCD9 is provided with the end PC
10。
Preferably, on the optical fiber main push-towing rope 1 can multiple electromagnetic sensing modules 6 in parallel, be convenient for the detection of multiple nodes.
Preferably, corresponding monochromatic filter 5 is mixed per coupler all the way, each optical path can be made to pass through a certain specific wavelength
Monochromatic light.
Preferably, power transmission cable is equipped with multiple nodes, and node is equidistantly divided and is located on power transmission cable, is convenient for
Partial node carries out detection electric current.
Preferably, the electromagnetic sensing module 6 uses Magnetic Sensor, can experience the information of tested electric current, and can will examine
The information experienced is surveyed, is for conversion into the electric signal for meeting certain standard needs according to certain rules.
Working principle: frequency modulation light source 4 issues a series of monochromatic light in certain range of wavelengths, by the first WDM coupler 3
Into optical fiber main push-towing rope 1, optical fiber main push-towing rope 1 can multiple electromagnetic sensing modules 6 in parallel, each electromagnetic sensing module 6 can monitor defeated
One node of electric wire cable, electromagnetic sensing module 6 is fixed on power transmission cable, corresponding to mixing per coupler all the way
Monochromatic filter 5 can make each optical path pass through the monochromatic light of a certain specific wavelength in this way, while being in close contact with power transmission cable
Each electromagnetic sensing module 6 senses the curent change of each power transmission cable, and by curent change be converted into contrast in
Monochromatic wavelength change is transferred on optical fiber main push-towing rope 1 by the second coupler 12, and the monochromatic light being transmitted back to passes through .WDM coupling
Clutch 13 again sorts to each monitoring node according to each monochromatic intensity by optical splitter 8, divides on CCD9, then pass through
Number adopts card and collects the end PC 10, is handled by computer, the real-time current value of each node on power transmission cable can be obtained.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (5)
1. a kind of fiber grating measuring device that can be used for transmission line of electricity, including optical fiber main push-towing rope (1), electromagnetic sensing module (6) and
Optical splitter (8), it is characterised in that: optical fiber main push-towing rope (1) side is equipped with electromagnetic sensing module (6), the electromagnetic sensing module
(6) the first coupler (2) and the second coupler (12), first coupler (2) and electricity are separately installed on the route at both ends
It is provided between magnetic sensing module (6) monochromatic filter (5), between the electromagnetic sensing module (6) and the second coupler (12)
It is provided with analyzer (7), described first coupler (2) one end is electrically connected with the first WDM coupler (3), the first WDM coupling
Clutch (3) side is equipped with frequency modulation light source (4), and the second coupler (12) output end is electrically connected with the 2nd WDM coupler
(13), the 2nd WDM coupler (13) side is provided with optical splitter (8), and optical splitter (8) side is electrically connected with CCD
(9), CCD (9) side is provided with the end PC (10).
2. a kind of fiber grating measuring device that can be used for transmission line of electricity according to claim 1, it is characterised in that: described
It can multiple electromagnetic sensing modules (6) in parallel on optical fiber main push-towing rope (1).
3. a kind of fiber grating measuring device that can be used for transmission line of electricity according to claim 1, it is characterised in that: each
Road coupler mixes corresponding monochromatic filter (5).
4. a kind of fiber grating measuring device that can be used for transmission line of electricity according to claim 1, it is characterised in that: will be defeated
Electric wire cable is equipped with multiple nodes, and node is equidistantly divided and is located on power transmission cable.
5. a kind of fiber grating measuring device that can be used for transmission line of electricity according to claim 1, it is characterised in that: described
Electromagnetic sensing module (6) uses Magnetic Sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811293882.XA CN109270320A (en) | 2018-10-31 | 2018-10-31 | A kind of fiber grating measuring device can be used for transmission line of electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811293882.XA CN109270320A (en) | 2018-10-31 | 2018-10-31 | A kind of fiber grating measuring device can be used for transmission line of electricity |
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| Publication Number | Publication Date |
|---|---|
| CN109270320A true CN109270320A (en) | 2019-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811293882.XA Pending CN109270320A (en) | 2018-10-31 | 2018-10-31 | A kind of fiber grating measuring device can be used for transmission line of electricity |
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Citations (8)
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|---|---|---|---|---|
| CN2522854Y (en) * | 2001-12-24 | 2002-11-27 | 上海枫岭生物技术有限公司 | Timed fluorescent quantitative gene augment instrumet optical path system |
| CN2630841Y (en) * | 2003-06-18 | 2004-08-04 | 中国石油天然气集团公司 | Opticalfiber grating sensing and measuring system for oil-gas pipeline detection |
| CN1564005A (en) * | 2004-03-15 | 2005-01-12 | 东南大学 | Integrated assayer for photoelectric performance |
| CN201251594Y (en) * | 2008-06-05 | 2009-06-03 | 吉林大学 | Long distance non-contact current monitoring system and sensing probe thereof |
| CN101603841A (en) * | 2008-06-11 | 2009-12-16 | 西安金和光学科技有限公司 | A kind of fiber-optic grating sensor |
| CN201397193Y (en) * | 2009-03-11 | 2010-02-03 | 南京理工大学 | Spectrum response testing device for wide spectral image enhancer |
| CN201788150U (en) * | 2010-09-28 | 2011-04-06 | 苗金水 | Near infrared detector based on fixed grating and CCD technology |
| CN209117749U (en) * | 2018-10-31 | 2019-07-16 | 江苏骏龙光电科技股份有限公司 | A kind of fiber grating measuring device can be used for transmission line of electricity |
-
2018
- 2018-10-31 CN CN201811293882.XA patent/CN109270320A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2522854Y (en) * | 2001-12-24 | 2002-11-27 | 上海枫岭生物技术有限公司 | Timed fluorescent quantitative gene augment instrumet optical path system |
| CN2630841Y (en) * | 2003-06-18 | 2004-08-04 | 中国石油天然气集团公司 | Opticalfiber grating sensing and measuring system for oil-gas pipeline detection |
| CN1564005A (en) * | 2004-03-15 | 2005-01-12 | 东南大学 | Integrated assayer for photoelectric performance |
| CN201251594Y (en) * | 2008-06-05 | 2009-06-03 | 吉林大学 | Long distance non-contact current monitoring system and sensing probe thereof |
| CN101603841A (en) * | 2008-06-11 | 2009-12-16 | 西安金和光学科技有限公司 | A kind of fiber-optic grating sensor |
| CN201397193Y (en) * | 2009-03-11 | 2010-02-03 | 南京理工大学 | Spectrum response testing device for wide spectral image enhancer |
| CN201788150U (en) * | 2010-09-28 | 2011-04-06 | 苗金水 | Near infrared detector based on fixed grating and CCD technology |
| CN209117749U (en) * | 2018-10-31 | 2019-07-16 | 江苏骏龙光电科技股份有限公司 | A kind of fiber grating measuring device can be used for transmission line of electricity |
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