CN110196235A - A kind of SF6The Systems for optical inspection of decomposition product - Google Patents
A kind of SF6The Systems for optical inspection of decomposition product Download PDFInfo
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- CN110196235A CN110196235A CN201910557078.6A CN201910557078A CN110196235A CN 110196235 A CN110196235 A CN 110196235A CN 201910557078 A CN201910557078 A CN 201910557078A CN 110196235 A CN110196235 A CN 110196235A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 32
- 238000000354 decomposition reaction Methods 0.000 title claims abstract description 24
- 238000007689 inspection Methods 0.000 title claims abstract description 20
- 239000013307 optical fiber Substances 0.000 claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 45
- 230000035945 sensitivity Effects 0.000 abstract description 12
- 239000000523 sample Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 109
- 238000010586 diagram Methods 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- -1 after detection Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The embodiment of the invention discloses a kind of SF6The Systems for optical inspection of decomposition product.The device includes: laser, signal generator, collimator, gas cell, detector and control module, and laser is connect with control module optical fiber；Laser is mono-colour laser, for emitting laser；Signal generator is electrically connected with laser, and the laser for launching laser carries out frequency modulation(PFM)；Collimator is connect with laser fiber, for being transmitted to gas cell after the laser that laser is launched is focused and is collimated；Detector passes through the light intensity before and after laser for probe gas pond；Control module is used to acquire the signal of the correspondence light intensity of detector output, and the gas component and its concentration in gas cell are determined according to the light intensity detected.The embodiment of the present invention effectively reduces interference of the natural light to laser by the connection type of all -fiber, improves the detection sensitivity and accuracy of detection platform and device.
Description
Technical field
The present embodiments relate to photoelectric technology detection field more particularly to a kind of SF6The optical detection system of decomposition product
System.
Background technique
Due to good insulation performance and arc extinction performance, SF6It is usually used in being used as gas-insulated medium inside GIS, when
When shelf depreciation or hot-spot failure occurring inside equipment, SF6Gas may decompose and generate some other products,
When being related to solid insulation, product is more complicated.Therefore: in SF6The on-line monitoring and fault diagonosing of air insulating device
In work, just there are great meaning and good engineering to the detection of feature decomposition component and other issuable gases
Application value.
Traditional fault detection method can detect gas using optical method according to absorption characteristic of the gas molecule to laser
The failure of body insulator arrangement, with occupied area is small, is easily installed, the advantage that detection sensitivity is high.
However, laser optical path is easy to be interfered in traditional fault detection method.Simultaneously as to light frequency
Modulation generally uses mechanical chopper, and the optical path of mechanical chopper is leaked in air cruelly, is easy to be interfered by white light, and mechanical
The heating effect of element itself is easy to accumulate in modular device, repairs and difficult in maintenance.Therefore, also it is badly in need of using a kind of
Device replaces mechanical chopper to be modulated the frequency of light.
Summary of the invention
The embodiment of the present invention provides a kind of SF6The Systems for optical inspection of decomposition product, to improve the detection spirit of detection system
Sensitivity and accuracy.
In a first aspect, the embodiment of the invention provides a kind of SF6The Systems for optical inspection of decomposition product, comprising: laser,
Signal generator, collimator, gas cell, detector and control module, the laser, detector and the control module connect
It connects；
The laser is mono-colour laser, for emitting laser；
The signal generator is electrically connected with the laser, and the laser for launching the laser carries out frequency
Modulation；
The collimator is connect with the laser fiber, the laser for launching the laser be focused and
The gas cell is transmitted to after collimation；
The detector passes through the light intensity before and after the gas cell for exploring laser light；
The control module is used to acquire the signal of the correspondence light intensity of the detector output, true according to the light intensity detected
Gas component and its concentration in the fixed gas cell.
Optionally, the signal generator is equipped with frequency modulation(PFM) module, and the frequency modulation(PFM) module is used for output to institute
Signal output waveform, output signal frequency and the output signal level for stating laser are modulated.
Optionally, focus lamp, collimating mirror are provided in the collimator, wherein the first light is provided on the focus lamp
Fine interface, the first optical fiber interface optical fiber connect the laser；
The focus lamp and the collimating mirror connect, for the laser of diverging to be focused；
The collimating mirror is set to the rear end of the focus lamp, for will be collimated by the laser of the focus lamp.
Optionally, the collimating mirror is equipped with screw thread, and the collimating mirror is screw-inserted into the pool wall of the gas cell.
Optionally, the second optical fiber interface, the second optical fiber interface optical fiber connection are provided on the pool wall of the gas cell
The detector；
The laser that the collimating mirror projects is acquired through second optical fiber interface of the gas cell by detector.
Optionally, the control module includes:
Laser control module is electrically connected with the laser, for controlling the laser transmitting laser；
Signal acquisition process module is electrically connected with the detector, for acquiring the signal of the detector output.
Optionally, the laser control module includes:
Temperature controller launches the temperature of laser for controlling the laser；
Current driver, for controlling the Injection Current of the laser.
Optionally, a kind of SF6The Systems for optical inspection of decomposition product further include:
Pressure sensor is set to the gas cell, for monitoring the gas cell air pressure inside；
Temperature sensor is set to the gas cell, for monitoring the gas cell internal temperature.
A kind of SF provided in an embodiment of the present invention6The Systems for optical inspection of decomposition product, by signal generator to laser
The laser of sending is connected in the collimator of gas cell after carrying out frequency modulation(PFM) through optical fiber, and collimator is by focus lamp and collimating mirror
It connects and constitutes, collimator is focused and injected in gas cell after collimating, and connects detector by optical fiber.The embodiment of the present invention
SF6The Systems for optical inspection of decomposition product is effectively reduced natural light and is done to laser by the connection type of all -fiber
It disturbs, improves the detection sensitivity and accuracy of detection system.
Detailed description of the invention
Fig. 1 is a kind of SF that the embodiment of the present invention one provides6The structural schematic diagram of the Systems for optical inspection of decomposition product；
Fig. 2 is the collimator structure schematic diagram that the embodiment of the present invention one provides；
Fig. 3 is the collimator structure schematic diagram that the embodiment of the present invention one provides；
Fig. 4 is a kind of SF provided by Embodiment 2 of the present invention6The control module structure of the Systems for optical inspection of decomposition product
Schematic diagram；
Fig. 5 is another kind SF provided by Embodiment 2 of the present invention6The Systems for optical inspection structural schematic diagram of decomposition product.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Traditional fault detection method, detection device can use optical side according to absorption characteristic of the gas molecule to laser
The failure of method detection gas insulator arrangement, with occupied area is small, is easily installed, the advantage that detection sensitivity is high.However, passing
In the fault detection method of system, laser optical path is easy to be interfered.Simultaneously as the modulation to light frequency is generally cut using machinery
Wave device, and the optical path of mechanical chopper is leaked in air cruelly, is easy to be interfered by white light, and the heating effect of mechanical organ itself
It is easy to accumulate in modular device, repair and difficult in maintenance.
Based on the above issues, the embodiment of the invention provides a kind of SF6The Systems for optical inspection of decomposition product.
Embodiment one
It illustratively, is a kind of SF that the embodiment of the present invention one provides with reference to Fig. 1, Fig. 16The optical detection system of decomposition product
The structural schematic diagram of system, the system specifically include: laser 10, signal generator 11, collimator 13, gas cell 14, detector
17 and control module 19, laser 10 connect with 19 optical fiber of control module；Wherein,
Laser 10 is mono-colour laser, for emitting laser；
Signal generator 11 is electrically connected with laser 10, and the laser for launching laser 10 carries out frequency modulation(PFM)；
Collimator 13 is connect with 10 optical fiber of laser, after the laser for launching laser 10 is focused and collimates
It is transmitted to gas cell 14；
Detector 17 passes through the light intensity of 14 front and back of gas cell for exploring laser light；
Control module 19 is used to acquire the signal of the correspondence light intensity of the output of detector 17, determines gas according to the light intensity detected
Gas component and its concentration in body pond 14.
Specifically, signal generator 11 is equipped with frequency modulation(PFM) module, the laser for issuing to laser 10 carries out frequency
Modulation, wherein frequency modulation(PFM) module is used to believe output to the signal output waveform of laser 10, output signal frequency and output
Number level is modulated, and modulated laser is transmitted through the optical fiber to collimator 13, and gas cell 14 is passed through after collimating by collimator
In.17 probe gas pond 14 of detector passes through the light intensity before and after laser, and control module 19 is electrically connected with detector 17, can be to detection
17 detectable signal sensitivity of device is adjusted, the signal for the correspondence light intensity that acquisition detector 17 exports, and determines in gas cell 14
Gas component and its concentration.
Illustratively, if you need to determine in gas cell 14 whether contain H2S gas then passes through signal generator 11 for laser
The frequency of the laser of 10 transmittings is adjusted to H2Frequency band corresponding to S gas is emitted by laser control module control laser 10
The laser is now known as first laser, first laser can be by H for convenience of describing by laser2S gas absorbs, can be logical by detecting
Enter the first laser before and after gas cell, if the light intensity of the first laser being passed through after gas cell detected is relative to passing through gas
It dies down before pond, then illustrates that gas cell includes H2S gas component；If you need to determine in gas cell 14 whether contain SO2Gas then leads to
The frequency for crossing the laser that signal generator 11 emits laser is adjusted to SO2Frequency band corresponding to gas, by laser controlling
Module controls laser 10 and emits laser, which can be described as second laser, if second be passed through after gas cell detected
The light intensity of laser then illustrates that gas cell includes SO relative to by dying down before gas cell2Gas component；Therefore, can pass through
Signal generator 11 adjusts the frequency that laser 10 sends laser, realizes and detects to gas cell various ingredients others.And make
It replaces mechanical chopper to carry out frequency modulation(PFM) to laser with signal generator, avoids laser optical path and leak in air cruelly, and swash
The interference of light is most of from natural light, effectively solves interference of the natural light to laser optical path.And avoid mechanical organ
Heat history, operation and maintenance are simple, realize to a variety of SF6The quantitative detection of decomposition components gas and can be in gas cell
Detection gas carry out repeated detection.
It should be noted that laser 10, signal generator 11 shown in Fig. 1, collimator 13, gas cell 14, detection
Shape, the position and structure of device 17 and control module 19 etc. are merely to illustrate a kind of possible implementation feelings in the embodiment of the present invention
Condition is not used to limit the embodiment of the present invention, when practical application, should be configured in conjunction with concrete condition to device.
Fig. 2 is that the collimator structure schematic diagram that the embodiment of the present invention one provides optionally with reference to Fig. 2, is set in collimator 13
It is equipped with focus lamp 131, collimating mirror 132, wherein the first optical fiber interface 12,12 light of the first optical fiber interface are provided on focus lamp 131
Fine connecting laser 10；
Wherein, focus lamp 131 and collimating mirror 132 connect, for the laser of diverging to be focused；Collimating mirror 132
It being set to the rear end of focus lamp 131, for will collimate by the laser of focus lamp 131, diverging light being become into directional light.By
There is divergence characterization in laser, before laser is sent into gas cell, laser is focused using focus lamp, biography can be reduced
Defeated laser loss makes laser become directional light by collimating mirror, to prevent laser from beating in the subsequent gas cell interior suction time receiving
Cause pool wall to absorb and influence testing result on to pool wall, reduce the noise in detection process, improves gas component detection
Precision.Since the presence of collimator effectively reduces natural light to laser so that this system can be realized all -fiber connection
Interference, improves the detection sensitivity and accuracy of detection platform and device.
To guarantee to carry out collimator with gas cell to have still ensured that good detection effect after plug-in type connects, in advance may be used
It reasonably selects the specification of collimator and accurately calculates the focal length of focus lamp.
Optionally, with reference to Fig. 3, Fig. 3 is the collimator structure schematic diagram that the embodiment of the present invention one provides, on collimating mirror 132
Equipped with screw thread, collimating mirror 132 is screw-inserted into the pool wall of gas cell 14, avoids laser exposure in air, and it is flat to improve detection
The detection sensitivity and accuracy of platform and device.
Optionally, the second optical fiber interface 15 is provided on the pool wall of gas cell 14, the connection of 15 optical fiber of the second optical fiber interface is visited
Device 17 is surveyed, the laser that collimating mirror 132 projects is acquired through the second optical fiber interface 15 of gas cell 14 by detector 17.
Wherein, in gas cell 14, under test gas component absorbs laser, after gas cell 14, the light of laser
It changes by force.Optionally, gas cell 14 is internally provided with temperature sensor and pressure sensor, can pass through temperature sensor
The temperature of gas cell is monitored, and passes through the pressure in pressure sensor monitoring gas cell.And then it can be according to the temperature monitored
And pressure, by control circuit, the reasonable temperature change and pressure change controlled in gas cell guarantees gas cell internal environment
Stability, improve detection gas absorb with the accuracy of measurement process, improve SF6The multi-component detection accuracy of decomposition product.
A kind of SF provided in an embodiment of the present invention6The Systems for optical inspection of decomposition product, by signal generator to laser
The laser of sending is connected in the collimator of gas cell after carrying out frequency modulation(PFM) through optical fiber, and collimator is by focus lamp and collimating mirror
It connects and constitutes, collimator is focused and injected in gas cell after collimating, and connects detector by optical fiber.The embodiment of the present invention
SF6The Systems for optical inspection of decomposition product is effectively reduced natural light and is done to laser by the connection type of all -fiber
It disturbs, improves the detection sensitivity and accuracy of detection system, realize optical means to SF6It decomposes whole when gas quantitative detection
The all -fiber of covering device connects, and reduces noise jamming, improves detection accuracy and sensitivity, while reducing equipment land occupation face
Product.
Embodiment two
Fig. 4 is a kind of SF provided by Embodiment 2 of the present invention6The control module structure of the Systems for optical inspection of decomposition product
Schematic diagram, based on the above technical solution, optionally, with reference to Fig. 4, control module 19 includes:
Laser control module 191 is electrically connected with the laser, for controlling the laser transmitting laser.
Wherein, laser control module 191 includes temperature controller 1911, launches laser for controlling the laser
Temperature；Current driver 1912, for controlling the Injection Current of the laser.Laser is given by laser control module
Different Injection Currents and temperature are so that laser 10 has suitable output peak wavelength to find the best wave of detection effect
Long point (the strongest wavelength points of gas infrared absorption), improves the accuracy of testing result.
Signal acquisition process module 192 is electrically connected with the detector, for acquiring the signal of the detector output,
And according to collected output signal, laser is compared by the light intensity situation of change of 14 front and back of gas cell, is determined in gas cell 14
Gas component.For example, the laser being passed through is corresponding H2The laser of the corresponding wave band of S gas is sent after being collimated by collimator 13
After entering gas cell 14, if the light intensity of the laser being passed through after gas cell detected dies down before relative to by gas cell,
It determines in gas cell 14 and contains H2S gas；If the light intensity of the laser being passed through after gas cell detected is relative to passing through gas
It is constant before pond, it is determined that H is free of in gas cell 142S gas.The variation degree of light intensity, which reflects, corresponds to gas group in gas cell
The concentration divided, after laser passes through gas cell, the light intensity signal decaying that detector detects is more, then corresponding wave band swashs in gas cell
The corresponding gas concentration of light is higher.
Fig. 5 is another kind SF provided by Embodiment 2 of the present invention6The Systems for optical inspection structural schematic diagram of decomposition product, can
Choosing, with reference to Fig. 5, which may also include signal amplification unit 16, for amplifying light intensity signal.
Specifically, detection gas are passed through gas cell 14 through air inlet 141, as H in gas cell 142When S gas concentration is higher,
Correspondence H when by gas cell 142The laser of S gas wave band is largely absorbed, so that the collected light intensity signal of detector 17
It is weaker, influence the accuracy that detector 17 detects light intensity signal.It is single that signal amplification is added between gas cell 14 and detector 17
Member 16 is sent into detector 17 after amplifying faint light intensity signal, convenient for improving the accuracy that detector 17 detects light intensity signal.
Optionally, portable computer 18 is placed in the rear end of detector 17, the light intensity for being detected to detector 17
Signal is acquired and subsequent processing.For example, portable computer 18 can detect the variation of light intensity signal according to detector 17
Judge the component of under test gas in gas cell 14, determined according to the degree for detecting light intensity signal variation in gas cell 14 to
The concentration for surveying gas, after detection, gas cell 14 is discharged into emission-control equipment by gas outlet 142 in detection gas, is prevented
Only detection gas are directly discharged to pollute environment in air.
A kind of SF provided in an embodiment of the present invention6The Systems for optical inspection of decomposition product, by signal generator to laser
The laser of sending is connected in the collimator of gas cell after carrying out frequency modulation(PFM) through optical fiber, and collimator is by focus lamp and collimating mirror
It connects and constitutes, collimator is focused and injected in gas cell after collimating, and connects detector by optical fiber.The embodiment of the present invention
SF6The Systems for optical inspection of decomposition product replaces mechanical chopper to carry out frequency modulation(PFM) to laser, leads to using signal generator
The connection type for crossing all -fiber avoids optical path and leaks the interference for effectively reducing natural light in air to laser cruelly, improves
The detection sensitivity and accuracy of detection system, realizes optical means to SF6Package unit when decomposing gas quantitative detection
All -fiber connection, reduce noise jamming, improve detection accuracy and sensitivity, while reducing occupation area of equipment.Simultaneously
By reasonably controlling temperature change and pressure change in gas cell, guarantees the stability of gas cell internal environment, improve inspection
Survey the accuracy of gas absorption and measurement process.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (8)
1. a kind of SF6The Systems for optical inspection of decomposition product characterized by comprising laser, signal generator, collimator,
Gas cell, detector and control module, the laser, detector are connect with the control module；
The laser is mono-colour laser, for emitting laser；
The signal generator is electrically connected with the laser, and the laser for launching the laser carries out frequency tune
System；
The collimator is connect with the laser fiber, and the laser for launching the laser is focused and collimates
After be transmitted to the gas cell；
The detector passes through the light intensity before and after the gas cell for exploring laser light；
The control module is used to acquire the signal of the correspondence light intensity of the detector output, determines institute according to the light intensity detected
State the gas component and its concentration in gas cell.
2. system according to claim 1, which is characterized in that the signal generator is equipped with frequency modulation(PFM) module, described
Frequency modulation(PFM) module be used for output to the signal output waveform of the laser, output signal frequency and output signal level into
Row modulation.
3. system according to claim 1, which is characterized in that focus lamp, collimating mirror are provided in the collimator,
In, the first optical fiber interface is provided on the focus lamp, the first optical fiber interface optical fiber connects the laser；
The focus lamp and the collimating mirror connect, for the laser of diverging to be focused；
The collimating mirror is set to the rear end of the focus lamp, for will be collimated by the laser of the focus lamp.
4. system according to claim 3, which is characterized in that the collimating mirror is equipped with screw thread, the collimation mirror screw
It is inserted into the pool wall of the gas cell.
5. system according to claim 1, which is characterized in that be provided with the second optical fiber on the pool wall of the gas cell and connect
Mouthful, second optical fiber interface connects the detector；
The laser that the collimating mirror projects is acquired through second optical fiber interface of the gas cell by detector.
6. system according to claim 1, which is characterized in that the control module includes:
Laser control module is electrically connected with the laser, for controlling the laser transmitting laser；
Signal acquisition process module is electrically connected with the detector, for acquiring the signal of the detector output.
7. system according to claim 6, which is characterized in that the laser control module includes:
Temperature controller launches the temperature of laser for controlling the laser；
Current driver, for controlling the Injection Current of the laser.
8. system according to claim 1, which is characterized in that further include:
Pressure sensor is set to the gas cell, for monitoring the gas cell air pressure inside；
Temperature sensor is set to the gas cell, for monitoring the gas cell internal temperature.
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| CN201910557078.6A CN110196235A (en) | 2019-06-25 | 2019-06-25 | A kind of SF6The Systems for optical inspection of decomposition product |
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| CN201910557078.6A CN110196235A (en) | 2019-06-25 | 2019-06-25 | A kind of SF6The Systems for optical inspection of decomposition product |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531239A (en) * | 2019-09-29 | 2019-12-03 | 国网江苏省电力有限公司 | A kind of SF6Decomposition components detection device and GIS expert diagnostic system |
| CN110531239B (en) * | 2019-09-29 | 2024-07-02 | 国网江苏省电力有限公司 | SF (sulfur hexafluoride)6Decomposition component detection device and GIS expert diagnosis system |
| CN111751323A (en) * | 2020-07-22 | 2020-10-09 | 云南电网有限责任公司电力科学研究院 | A dispersion spectrum device for gaseous detection of SF6 |
| CN112461772A (en) * | 2020-11-17 | 2021-03-09 | 武汉大学 | C5F10Method for optically detecting concentration of O-mixed gas |
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