CN106500769A - Grating array optical fiber non-contact type signal transferring high voltage electrical equipment distributed detection system - Google Patents
Grating array optical fiber non-contact type signal transferring high voltage electrical equipment distributed detection system Download PDFInfo
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- CN106500769A CN106500769A CN201610969384.7A CN201610969384A CN106500769A CN 106500769 A CN106500769 A CN 106500769A CN 201610969384 A CN201610969384 A CN 201610969384A CN 106500769 A CN106500769 A CN 106500769A
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- optical fiber
- grin lens
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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
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention discloses a kind of grating array optical fiber non-contact type signal transferring high voltage electrical equipment distributed detection system, including the optical fiber optical grating array being arranged in High-Voltage Electrical Appliances to be measured, multiple test points, the distributed diverse location being arranged on inside High-Voltage Electrical Appliances to be measured is provided with optical fiber optical grating array；The system also includes that the porcelain insulator being arranged on High-Voltage Electrical Appliances to be measured, porcelain insulator two ends are provided with input GRIN Lens and output GRIN Lens, and input GRIN Lens and output GRIN Lens are not contacted and mutually collimated；Optical signal is sent to input GRIN Lens by the output end of fiber grating, input GRIN Lens is converged to optical signal and is sent to output GRIN Lens after being collimated, optical signal is sent to optical signal demodulation and processor by Transmission Fibers by output GRIN Lens, obtains the various parameter changes of High-Voltage Electrical Appliances to be measured by solving dim signal.Present invention achieves the multi-parameter distribution monitoring in High-Voltage Electrical Appliances, and accuracy of detection is high, is suitable for long-term real-time monitoring.
Description
Technical field
The present invention relates to the distributed Parametric Detection field of High-Voltage Electrical Appliances, more particularly to a kind of grating array optical fiber is contactless
Signal transmission High-Voltage Electrical Appliances distributed detection system.
Background technology
With the intelligentized development of the modernization of power technology, voltage, electric current, temperature, vibration in High-Voltage Electrical Appliances (is locally put
Electricity) etc. parameter a kind of monitoring study hotspot (patent " monitoring diagnosis system of high-voltage electrical equipment " always in recent years
CN201110143114.8), while being also a sensory field difficult problem urgently to be resolved hurrily.Existing infrared temperature-test technology can measure height
Temperature Distribution (patent " a kind of sensing device for on-line monitoring temperature rising state for high voltage switch electrical equipment " in piezoelectricity device
CN200810232421.1), but the problems such as structure cannot be solved blocking with long-term real time on-line monitoring, and single-point monitoring valency
Lattice are expensive.As sensing point is in the high-pressure side of equipment, according to traditional electric sensing technology, then transmission of wireless signals must be adopted
Technology (patent " the online state of insulation wireless monitoring device of electrical equipment and electrical " CN201510298676.8), can also run into electromagnetic interference
Greatly, scene needs the problems such as powering.
Optical fiber sensing technology is a kind of new sensing technology, as which is easy to distributed networking, can achieve multi-parameter and surveys
Amount, live non-electric detection, the essence advantage such as explosion-proof substitute conventional art in many severe applied environments and obtain on a large scale should
With.Because the material of optical fiber itself is insulation, there is document report optical fiber sensing technology to realize that the temperature survey of high electrical equipment is (special
Profit " a kind of High-Voltage Electrical Appliances temperature probe and High-Voltage Electrical Appliances temperature monitoring system " CN201010137470.4).But in reality
In applied environment, dust filth of aging, the moist caused condensation vapor of fibre-optic package material and accumulation etc. can all change light
The insulation resistance energy of cable, it is impossible to ensure use reliably and with long-term.Solve an above-mentioned difficult problem to connect using new optical fiber is non-
Touch signal transmission technology.
Content of the invention
The technical problem to be solved in the present invention is, for the defect that cannot ensure to use in prior art reliably and with long-term, to carry
For a kind of grating array optical fiber non-contact type signal transferring high voltage electrical equipment distributed detection system.
The technical solution adopted for the present invention to solve the technical problems is：
The present invention provides a kind of grating array optical fiber non-contact type signal transferring high voltage electrical equipment distributed detection system, including
The optical fiber optical grating array being arranged in High-Voltage Electrical Appliances to be measured, is provided with multiple test points on optical fiber optical grating array, distributed set
Put the diverse location inside the High-Voltage Electrical Appliances to be measured；
The system also includes that the porcelain insulator being arranged on High-Voltage Electrical Appliances to be measured, porcelain insulator two ends are provided with input autohemagglutination
Focus lens and output GRIN Lens, input GRIN Lens and output GRIN Lens are not contacted and are mutually collimated；Light grating array
Optical signal is sent to input GRIN Lens by the output end of row optical fiber, and input GRIN Lens is converged to optical signal and accurate
Be sent to output GRIN Lens after straight, output GRIN Lens by Transmission Fibers by optical signal be sent to optical signal demodulation with
Processor, obtains the various parameter changes of High-Voltage Electrical Appliances to be measured by solving dim signal.
Further, input GRIN Lens of the invention and output GRIN Lens adopt the condenser lens in 1/4 cycle.
Further, input GRIN Lens of the invention and output GRIN Lens constitute colimated light system；The collimation system
System also includes that optical fiber and function element, version are：Optical fiber, input GRIN Lens, function element, output self-focusing are saturating
Mirror, optical fiber are sequentially connected.
Further, high tension shackle insulator of the invention is on High-Voltage Electrical Appliances cabinet, and porcelain insulator is mixing soil
High-temperature firing is formed.
Further, grating array optical fiber of the invention is the grating array or list of online write in optical fiber manufacturing processes
The grating for solely preparing.
Further, the grating in grating array optical fiber of the invention can be packaged into temperature sensor, vibrating sensor, electricity
Pressure sensor or current sensor, tested parameter include temperature, vibration, voltage and current.
Further, the input of grating array optical fiber of the invention is provided with light source.
The beneficial effect comprise that：The grating array optical fiber non-contact type signal transferring high voltage electrical equipment point of the present invention
Cloth detecting system, is carried out by the reflection wavelength change to the distributed grating array optical fiber being arranged in High-Voltage Electrical Appliances to be measured
Demodulation, obtains the various parameter changes of High-Voltage Electrical Appliances to be measured, contactless between grating array optical fiber and High-Voltage Electrical Appliances to be measured, prevents
Fibre-optic package material aging, it is ensured that use reliably and with long-term, distributed being arranged on of the test point of grating array optical fiber is treated
Survey in High-Voltage Electrical Appliances, detection range is wide, can more fully react the working condition of electrical equipment；In addition, by being input into GRIN Lens
With the alignment function of output GRIN Lens, the scattering of optical signal is effectively reduced, accuracy of detection and detection efficiency is improve.
Description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the structural representation of the embodiment of the present invention；
In figure, 1- grating array optical fiber, 2- porcelain insulators, 3- are input into GRIN Lens, and 4- exports GRIN Lens, and 5- is passed
Lose fibre, 6- optical signal demodulations and processor, 7- High-Voltage Electrical Appliances to be measured.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, not
For limiting the present invention.
As shown in figure 1, the distributed inspection of the grating array optical fiber non-contact type signal transferring high voltage electrical equipment of the embodiment of the present invention
Examining system, including the optical fiber optical grating array 1 being arranged in High-Voltage Electrical Appliances to be measured 7, is provided with multiple detections on optical fiber optical grating array 1
Point, the distributed diverse location being arranged on inside High-Voltage Electrical Appliances to be measured 7；
The system also includes that the porcelain insulator 2 being arranged on High-Voltage Electrical Appliances to be measured 7,2 two ends of porcelain insulator are provided with input
GRIN Lens 3 and output GRIN Lens 4, input GRIN Lens 3 and output 4 mutual collimation of GRIN Lens；Optical fiber light
Optical signal is sent to input GRIN Lens 3 by the output end of grid 1, and input GRIN Lens 3 is converged to optical signal and accurate
Output GRIN Lens 4 is sent to after straight, and optical signal is sent to optical signal solution by Transmission Fibers 5 by output GRIN Lens 4
Reconciliation process device 6, obtains the various parameter changes of High-Voltage Electrical Appliances to be measured by solving dim signal.
Grating array optical fiber 1 is the grating array or the grating being manufactured separately of online write in optical fiber manufacturing processes.Light
Grating in grid array optical fiber 1 can be packaged into temperature sensor, vibrating sensor, voltage sensor or current sensor, tested
Parameter includes temperature, vibration, voltage and current.The input of grating array optical fiber 1 is provided with light source.
In another specific embodiment of the present invention, grating array optical fiber non-contact type signal transferring high voltage electrical equipment is distributed
Formula detecting system, including grating array optical fiber, porcelain insulator, input GRIN Lens and output GRIN Lens, Transmission Fibers,
Optical signal demodulation and processor, High-Voltage Electrical Appliances, optical fiber optical grating array distributed networking are arranged on inside High-Voltage Electrical Appliances, using wavelength-division
Multiplex technique concatenates multiple gratings in an optical fiber and carries out distributed measurement.Fiber grating through special encapsulation, to ensure
Certainty of measurement at high temperature under high pressure.The change of the tested parameter of measuring point causes the change of fiber grating reflection wavelength, carries tested
The wavelength signals of parameter information are transmitted in air by being input into GRIN Lens, are output GRIN Lens and are received and pass through biography
Lose fine enter optical signal demodulation and processor, wavelength signals are demodulated out and to be calculated as the tested parameter of corresponding points.Input
GRIN Lens and output GRIN Lens installed in the two ends of porcelain insulator and are collimated, former according to the collimation of GRIN Lens
Reason, as track of the light in condenser lens is sine curve, when light source is located on end face axle, at 1/4 week of condenser lens
Light ray parallel outgoing at phase, light is focused on axle at 1/2 cycle of condenser lens.In colimated light system, 1/4 is generally adopted
The condenser lens in cycle.Typical forms are:Fiber focus lens function element focusing lensed fibers.A lot
In micro-optic device, the off axis input and off-axis output characteristics of condenser lens have been used, so that the volume of colimated light system subtracts significantly
Little, and collimate performance greatly improve.For the GRIN Lens of 1/4 pitch, when converged light is input into from GRIN Lens end face
When, parallel rays can be transformed into after GRIN Lens, the scattering of optical signal is effectively reduced, improve accuracy of detection and
Detection efficiency.
High tension shackle insulator on the High-Voltage Electrical Appliances cabinet, porcelain insulator be in high-tension line frequently with equipment, lead to
It is often the insulating bottle to mix soil high-temperature firing, it will not answer environment and electric load condition to change and produce various
Electromechanical STRESS VARIATION, can play a part of fixed line cord, insulation prevents electric leakage, with good electric property and enough
Electromechanical intensity, applies it to this patent, and optical signal is transmitted wherein, collimated, and can achieve contactless signal transmission.
Grating array optical fiber is the grating array of online write in optical fiber manufacturing processes, or the grating being manufactured separately.Light
Grating in grid array optical fiber can be packaged into temperature sensor, vibrating sensor, voltage sensor or current sensor.Tested ginseng
Amount includes temperature, vibration, voltage and current.
This novel grating array fibre signal contactless transmission technology that the present invention is provided, it is achieved that in High-Voltage Electrical Appliances
Multi-parameter distribution monitoring.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations should all belong to the protection domain of claims of the present invention.
Claims (7)
1. a kind of grating array optical fiber non-contact type signal transferring high voltage electrical equipment distributed detection system, it is characterised in that include
The optical fiber optical grating array being arranged in High-Voltage Electrical Appliances to be measured, is provided with multiple test points on optical fiber optical grating array, distributed set
Put the diverse location inside the High-Voltage Electrical Appliances to be measured；
The system also includes the porcelain insulator being arranged on High-Voltage Electrical Appliances to be measured, and it is saturating that porcelain insulator two ends are provided with input self-focusing
Mirror and output GRIN Lens, input GRIN Lens and output GRIN Lens are not contacted and are mutually collimated；Grating array light
Optical signal is sent to input GRIN Lens by fine output end, after input GRIN Lens is converged to optical signal and collimated
Output GRIN Lens is sent to, optical signal is sent to optical signal demodulation and process by Transmission Fibers by output GRIN Lens
Device, obtains the various parameter changes of High-Voltage Electrical Appliances to be measured by solving dim signal.
2. grating array optical fiber non-contact type signal transferring high voltage electrical equipment distributed detection system according to claim 1,
Characterized in that, input GRIN Lens and output GRIN Lens adopt the condenser lens in 1/4 cycle.
3. grating array optical fiber non-contact type signal transferring high voltage electrical equipment distributed detection system according to claim 1,
Characterized in that, input GRIN Lens and output GRIN Lens constitute colimated light system；The colimated light system also include optical fiber and
Function element, version is：Optical fiber, input GRIN Lens, function element, output GRIN Lens, optical fiber are sequentially connected.
4. grating array optical fiber non-contact type signal transferring high voltage electrical equipment distributed detection system according to claim 1,
Characterized in that, high tension shackle insulator is on High-Voltage Electrical Appliances cabinet, porcelain insulator is formed with mixing soil high-temperature firing.
5. grating array optical fiber non-contact type signal transferring high voltage electrical equipment distributed detection system according to claim 1,
Characterized in that, grating array optical fiber is the grating array or the grating being manufactured separately of online write in optical fiber manufacturing processes.
6. grating array optical fiber non-contact type signal transferring high voltage electrical equipment distributed detection system according to claim 1,
Characterized in that, the grating in grating array optical fiber can be packaged into temperature sensor, vibrating sensor, voltage sensor or electric current
Sensor, tested parameter include temperature, vibration, voltage and current.
7. grating array optical fiber non-contact type signal transferring high voltage electrical equipment distributed detection system according to claim 1,
Characterized in that, the input of grating array optical fiber is provided with light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610969384.7A CN106500769A (en) | 2016-10-28 | 2016-10-28 | Grating array optical fiber non-contact type signal transferring high voltage electrical equipment distributed detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610969384.7A CN106500769A (en) | 2016-10-28 | 2016-10-28 | Grating array optical fiber non-contact type signal transferring high voltage electrical equipment distributed detection system |
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| CN106500769A true CN106500769A (en) | 2017-03-15 |
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| CN201610969384.7A Pending CN106500769A (en) | 2016-10-28 | 2016-10-28 | Grating array optical fiber non-contact type signal transferring high voltage electrical equipment distributed detection system |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040131367A1 (en) * | 2003-01-02 | 2004-07-08 | Sung-Kee Kim | EML transmitter applying band stop filter |
| CN2879147Y (en) * | 2005-11-21 | 2007-03-14 | 天津爱天光电子科技有限公司 | Series type optical fiber grating temperature sensor for high-voltage switch cabinet |
| CN201368778Y (en) * | 2008-12-22 | 2009-12-23 | 延安供电局 | Fiber grating power temperature monitoring system |
| CN201909685U (en) * | 2010-12-14 | 2011-07-27 | 王黎 | Temperature monitoring device for high voltage equipment |
| CN102175274A (en) * | 2011-01-28 | 2011-09-07 | 陕西科技大学 | Multi-physical quantity measurement sensing signal recognition method and device based on distributed FBG (Fiber Bragg Grating) sensors |
| CN202195898U (en) * | 2011-08-25 | 2012-04-18 | 合肥远见电力科技有限公司 | Fiber type temperature on-line monitoring device used for high voltage switch cabinet |
| CN103759855A (en) * | 2014-02-14 | 2014-04-30 | 太原理工大学 | Temperature sensing system with FBG |
| CN205333222U (en) * | 2016-01-26 | 2016-06-22 | 济南达慧光电科技有限公司 | Optic fibre wireless temperature on -line monitoring device for high tension switchgear |
| CN105973313A (en) * | 2016-07-08 | 2016-09-28 | 武汉理工光科股份有限公司 | Electric vehicle charging pile safety monitoring system based on fiber grating |
-
2016
- 2016-10-28 CN CN201610969384.7A patent/CN106500769A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040131367A1 (en) * | 2003-01-02 | 2004-07-08 | Sung-Kee Kim | EML transmitter applying band stop filter |
| CN2879147Y (en) * | 2005-11-21 | 2007-03-14 | 天津爱天光电子科技有限公司 | Series type optical fiber grating temperature sensor for high-voltage switch cabinet |
| CN201368778Y (en) * | 2008-12-22 | 2009-12-23 | 延安供电局 | Fiber grating power temperature monitoring system |
| CN201909685U (en) * | 2010-12-14 | 2011-07-27 | 王黎 | Temperature monitoring device for high voltage equipment |
| CN102175274A (en) * | 2011-01-28 | 2011-09-07 | 陕西科技大学 | Multi-physical quantity measurement sensing signal recognition method and device based on distributed FBG (Fiber Bragg Grating) sensors |
| CN202195898U (en) * | 2011-08-25 | 2012-04-18 | 合肥远见电力科技有限公司 | Fiber type temperature on-line monitoring device used for high voltage switch cabinet |
| CN103759855A (en) * | 2014-02-14 | 2014-04-30 | 太原理工大学 | Temperature sensing system with FBG |
| CN205333222U (en) * | 2016-01-26 | 2016-06-22 | 济南达慧光电科技有限公司 | Optic fibre wireless temperature on -line monitoring device for high tension switchgear |
| CN105973313A (en) * | 2016-07-08 | 2016-09-28 | 武汉理工光科股份有限公司 | Electric vehicle charging pile safety monitoring system based on fiber grating |
Non-Patent Citations (1)
| Title |
|---|
| 朱少丽: "自聚焦透镜在光纤准直器中的应用分析", 《西南师范大学学报(自然科学版)》 * |
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Application publication date: 20170315 |