CN105891075B - A kind of multi-point cooperative mode of laser group and gas detecting system - Google Patents
A kind of multi-point cooperative mode of laser group and gas detecting system Download PDFInfo
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- CN105891075B CN105891075B CN201610223803.2A CN201610223803A CN105891075B CN 105891075 B CN105891075 B CN 105891075B CN 201610223803 A CN201610223803 A CN 201610223803A CN 105891075 B CN105891075 B CN 105891075B
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- G—PHYSICS
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Abstract
This application discloses a kind of multi-point cooperative mode of laser group and gas detecting systems, wherein the multi-point cooperative mode of laser group includes package casing, main detection laser, collimating and beam expanding system, fourier lense, laser-assisted group and control device；The multi-point cooperative mode of laser group can send main detection laser to the gas sample chamber in the form of normal incidence, while can send at least four auxiliary to the gas sample chamber in a manner of oblique incidence and detect laser；During being detected to sample to be tested, the sample to be tested information that the main detection laser being emitted by the gas sample chamber carries can detect sample to be tested information entrained by laser by least four auxiliary being emitted by the gas sample chamber and make up, it ensure that the comprehensive of under test gas information detection, to effectively expand the lower limit of droplet measurement, and then improve the detection accuracy of entire gas detecting system and the reliability of detection data.
Description
Technical field
This application involves gas detection technology fields, more specifically to a kind of multi-point cooperative mode of laser group and gas
Detection system.
Background technique
In recent years, haze becomes the pollution sources in the puzzlement numerous cities in China with the increasingly exacerbation of air pollution degree
One of.Haze is the general statement exceeded to suspended particulate substance Han Ling various in atmosphere, how to detect the suspended particulate in atmosphere
Object is the precondition for administering haze weather.
The detection method of the air suspended particulated concentration of mainstream is light scattering method now, and theoretical basis is that Michaelis dissipates
It penetrates, i.e., incident light encounters the suspended particulate substance in air to be measured and can scatter, the scattering light scattered by the suspended particulate substance
Light distribution include suspended particulate substance the information such as particle size, size distribution concentration.Described dissipate is obtained by certain way
The intensity signal for penetrating light can be finally inversed by the relevant information of the suspended particulate substance.It is being detected based on the detection system of light scattering method
In the process only need to by air sampling to be measured into gas sample chamber, by light source send detection light enter in gas sample chamber into
Row measurement.But some scattered light that light is detected described in measurement process can be sent out when being emitted from gas sample chamber
Total reflection phenomenon is sent, and then the detection that can not be arranged on gas sample chamber exit facet side arrives, and these
The scattering envelope being totally reflected has contained a large amount of suspended particulate substance information, and the loss of these information can reduce entire detection system
Detection accuracy and detection data reliability.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of multi-point cooperative mode of laser group and gas detecting system, with
It solves due to caused by detecting be totally reflected when some scattered light of light is emitted from gas sample chamber in the detection process
Entirely the problem of the reduction of the detection accuracy of detection system and detection data reliability.
In order to solve the above technical problems, the embodiment of the invention provides following technical solutions:
A kind of multi-point cooperative mode of laser group, applied to the gas detecting system based on light scattering method, the detection system packet
Include gas sample chamber；The multi-point cooperative mode of laser group includes:
Package casing, the package casing include exit facet；
The main detection laser being set to inside the package casing, for sending main detection laser；
The collimating and beam expanding system being set between the main detection laser and the exit facet, for the main detection
Laser carries out collimator and extender processing；
The fourier lense being set in the exit facet, for by collimator and extender treated main detection laser into
Main detection laser is obtained after the reverse Fourier transformation of row, the main detection laser enters the gaseous sample in a manner of normal incidence
Room；
The laser-assisted group being set in the exit facet, the laser-assisted group include at least four auxiliary detections
Laser, it is described at least four auxiliary detection laser be set to the fourier lense surrounding, in a manner of oblique incidence to
The gas sample chamber sends at least four beams auxiliary detection laser；
It is set in the package casing, the control device being connect with the main detection laser and laser-assisted group,
For driving the main detection laser to send main detection laser and for driving laser-assisted transmission at least four beams auxiliary
Help detection laser.
Preferably, the control device is also used to obtain the temperature of the main detection laser and laser-assisted group, and
Stablized in preset temperature range.
Preferably, the control device includes: temperature sensor, processing unit, refrigerator and driving circuit；Wherein,
The driving circuit is for driving the main detection laser to send main detection laser and the driving auxiliary laser
Device group sends at least four beams auxiliary detection laser, and the main detection laser and at least four beams is kept to assist detection laser
It is Wavelength stabilized；
The temperature sensor is used to obtain the temperature information of the main detection laser and laser-assisted group；
The processing unit controls the work of the refrigerator according to the temperature information for obtaining the temperature information
Make state.
Preferably, the processing unit is single-chip microcontroller or microprocessor.
Preferably, the collimating and beam expanding system includes:
The beam expanding lens being set between the main detection laser and the exit facet；
It is set to pin hole of the beam expanding lens far from the main detection laser side；
It is set to collimating mirror of the pin hole far from the beam expanding lens side；
It is set to diaphragm of the collimating mirror far from the pin hole side.
Preferably, the laser-assisted group includes four auxiliary detection lasers, four auxiliary detection laser
It is uniformly distributed in the fourier lense surrounding.
Preferably, the auxiliary detection laser is blue laser or red laser or green (light) laser.
Preferably, the main detection laser is red laser.
A kind of gas detecting system, for detecting under test gas, the system comprises: at least one is such as any of the above-described implementation
Multi-point cooperative mode of laser group, gas sample chamber, detection device and processing system described in example；Wherein,
The gas sample chamber is for storing sample to be tested；
The multi-point cooperative mode of laser group is used to send main detection laser and at least four beams auxiliary to the gas sample chamber
Laser is detected, the main detection laser enters the gas sample chamber in a manner of normal incidence, and at least four beams auxiliary detection swashs
Light is with the incident gas sample chamber of different angle；
The detection device is for detecting the main inspection for carrying sample to be tested information being emitted by the gas sample chamber
Laser and at least four beams auxiliary detection laser are surveyed, and is transferred to the processing system；
The processing system is used to carry the main detection laser and at least four beams auxiliary of sample to be tested information according to
Detection laser obtains the sample to be tested information of sample to be tested in the gas sample chamber.
Preferably, the detection device includes key light electric explorer and auxiliary detector；Wherein,
The key light electric explorer, which is used to detect, carries sample to be tested information by what the gas sample chamber was emitted
Main detection laser；
The auxiliary detector carries sample to be tested information extremely by what the gas sample chamber was emitted for detecting
Few four auxiliary detect laser.
It can be seen from the above technical proposal that the embodiment of the invention provides a kind of multi-point cooperative mode of laser groups and gas to examine
Examining system；Wherein, the multi-point cooperative mode of laser group can send main detection to the gas sample chamber in the form of normal incidence
Laser, while at least four auxiliary can be sent to the gas sample chamber in a manner of oblique incidence and detect laser；Due to it is described extremely
The incident direction of few four beams auxiliary detection laser and the incident direction of the main detection laser are all different, and are scattered by under test gas
The sample to be tested information entrained by the light of gas sample chamber total reflection is also all different afterwards, therefore is carried out to sample to be tested
During detection, the sample to be tested information that the main detection laser being emitted by the gas sample chamber carries can be by passing through
It states sample to be tested information entrained by at least four auxiliary detection laser of gas sample chamber outgoing to be made up, ensure to be measured
Gas information detection it is comprehensive, to effectively expand the lower limit of droplet measurement, and then improve entire gas detection system
The detection accuracy of system and the reliability of detection data.
And due to the integrative packaging of the package casing, so that the multi-point cooperative mode of laser group is with good steady
It is qualitative.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of structural schematic diagram for multi-point cooperative mode of laser group that one embodiment of the application provides；
Fig. 2 is a kind of structural schematic diagram for control device that one embodiment of the application provides；
Fig. 3 is a kind of structural schematic diagram for collimating and beam expanding system that one embodiment of the application provides；
Fig. 4 is a kind of structural schematic diagram for laser-assisted group that one embodiment of the application provides；
Fig. 5 is a kind of structural schematic diagram for gas detecting system that one embodiment of the application provides.
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.
This application discloses a kind of multi-point cooperative mode of laser groups, applied to the gas detecting system based on light scattering method, institute
Stating detection system includes gas sample chamber；As shown in Figure 1, the multi-point cooperative mode of laser group includes:
Package casing 100, the package casing 100 include exit facet；
The main detection laser 200 being set to inside the package casing 100, for sending main detection laser；
The collimating and beam expanding system 300 being set between the main detection laser 200 and the exit facet, for described
Main detection laser carries out collimator and extender processing；
The fourier lense 500 being set in the exit facet, for by collimator and extender treated it is main detection swash
Light obtains main detection laser after carrying out reverse Fourier transformation, and the main detection laser enters the gas in a manner of normal incidence
Sample room；
The laser-assisted group 400 being set in the exit facet, the laser-assisted group 400 include at least four auxiliary
Detection laser is helped, at least four auxiliary detection laser is set to 500 surrounding of fourier lense, for oblique
It penetrates mode and sends at least four beams auxiliary detection laser to the gas sample chamber；
It is set in the package casing 100, is connect with the main detection laser 200 and laser-assisted group 400
Control device (is not shown) in attached drawing 1, for driving the main detection laser 200 to send main detection laser and for driving
It states laser-assisted and sends at least four beams auxiliary detection laser.
It should be noted that the main detection laser used in the gas detecting system based on light scattering method in general
200 can generally emit the red laser of red laser.But in the other embodiments of the application, the main detection laser
Device 200 can also be blue laser or filter laser device.The application to this and without limitation, specifically depending on actual conditions.
Light path in the prior art only has a branch of single main detection laser.The application swashs in the reservation main detection
On the basis of light, the auxiliary detection laser of at least four beam oblique incidences is increased.Increase the purpose of at least four beams auxiliary detection laser
It is for the Monitoring lower-cut of enlargement gas detection system.In only main detection laser directive gas sample chamber in a manner of normal incidence
In the case where, it can be all-trans by the scattering light for the main detection laser in part that sample to be tested scatters when being emitted from gas sample chamber
It penetrates, thus the scattering light of the only main detection laser in part can be received, and be wrapped in these scattering light not being received
The a large amount of submicron particles information of sample to be tested is contained.And the auxiliary detection laser of at least four beam oblique incidences is with oblique incidence
Mode to that can detect, can make up in this way include in the scattering light for the main detection laser not being received to test sample
The a large amount of submicron particles information of product to improve the Monitoring lower-cut of gas detecting system, and then improves entire gas inspection
The detection accuracy of examining system and the reliability of detection data.
It should also be noted that, the fourier lense 500 of multi-point cooperative mode of laser group provided by the embodiments of the present application is inverse
To the structure of Fourier transformation, this structure is taken to can reduce the equivalent focal length of the multi-point cooperative mode of laser group, Jin Erke
Effectively to expand the gas detecting system of the application multi-point cooperative mode of laser group in the case where not replacing fourier lense 500
Monitoring lower-cut, improve to the resolving power of fine particle.The equivalent focal length of this optical texture is continuously adjustable simultaneously and scatters light
Maximum acceptance angle do not limited by 500 bore of fourier lense.
On the basis of the above embodiments, in one embodiment of the application, the control device is also used to obtain institute
The temperature of main detection laser 200 and laser-assisted group 400 is stated, and is stablized in preset temperature range.
It should be noted that stablizing the temperature of the main detection laser 200 and laser-assisted group 400 in default temperature
Purpose in degree range is to provide suitable working environment for the laser chip of laser, guarantees the main detection laser 200
With the reliability of laser-assisted group 400.
It should also be noted that, the preset temperature range is the main detection laser 200 and laser-assisted group 400
The temperature range that can be worked normally.In one embodiment of the application, the preset temperature range is 10 DEG C -50 DEG C, packet
Include endpoint value.In the preferred embodiment of the application, the preset temperature range is 20 DEG C -35 DEG C, including endpoint value.This
Application is to this and without limitation, specific depending on actual conditions.
On the basis of the above embodiments, in another embodiment of the application, as shown in Fig. 2, the control device
600 include: temperature sensor 610, processing unit 620, refrigerator 630 and driving circuit 640；Wherein,
For driving, the main detection laser 200 sends main detection laser to the driving circuit 640 and driving is described auxiliary
It helps laser group 400 to send at least four beams auxiliary detection laser, and the main detection laser and at least four beams is kept to assist
Detect the Wavelength stabilized of laser；
The temperature sensor 610 is used to obtain the temperature letter of the main detection laser 200 and laser-assisted group 400
Breath；
The processing unit 620 controls the refrigerator for obtaining the temperature information, and according to the temperature information
630 working condition.
It should be noted that the driving circuit 640 is by being input to the main detection laser 200 and auxiliary laser
The control of the driving current of device group 400 makes the main detection laser and at least four beams auxiliary detect the Wavelength stabilized of laser
In the range that entire gas detecting system needs.
It is carried out by temperature of the temperature sensor 610 to the main detection laser 200 and laser-assisted group 400
Monitor in real time and send temperature information to the processing unit 620, the processing unit 620 to the temperature information at
After reason, the working condition of the refrigerator 630 is controlled according to processing result, and the main detection laser 200 and auxiliary are swashed
The temperature of light device group 400 is maintained in preset temperature range.
It should also be noted that, the processing unit 620 is single-chip microcontroller in one embodiment of the application.But at this
In the other embodiments of application, the processing unit 620 can also be microprocessor.The application adopts the processing unit 620
Specific type of device and without limitation, specifically depending on actual conditions.
In another embodiment of the application, the refrigerator 630 is semiconductor cooler, but the application is to the system
The specific type of cooler 630 and without limitation, specifically depending on actual conditions.
On the basis of the above embodiments, the specific embodiment of the application provides a kind of collimating and beam expanding system 300
Concrete composition structure, as shown in Figure 3, comprising:
The beam expanding lens 310 being set between the main detection laser 200 and the exit facet；
It is set to pin hole 320 of the beam expanding lens 310 far from main 200 side of detection laser；
It is set to collimating mirror 330 of the pin hole 320 far from 310 side of beam expanding lens；
It is set to diaphragm 340 of the collimating mirror 330 far from 320 side of pin hole.
It should be noted that the position that the pin hole 320 is placed is the rear focus position of the beam expanding lens 310, institute
Collimation lens front focus is stated to be overlapped with the rear focus of the beam expanding lens 310.
It should also be noted that, the purpose that the collimating and beam expanding system 300 is set be change it is main detection light beam diameter and
Reduce the angle of divergence, while expanding spot size, the main detection laser for the light pencil form that the main detection laser 200 is sent
Light beam diameter is converted to meet the requirements and the collimation collimated light beam of uniform intensity.
The dust or spot of particle, optical element surface in air will lead to Laser emission scattering, and due to laser
With very strong coherence, these scattering light can interfere phenomenon with stray light, interfere to the main detection laser.Cause
This needs to filter out stray light in the rear focus that pin hole 320 is arranged in beam expanding lens 310.After beam expanding lens 310 and pin hole 320
Main detection laser pools a very small point, can be approximately a point light source and generate spherical wave.And spherical wave is uncomfortable
Cooperation is the detection light of gas sample chamber, does not meet ideal Mie scattering (Mie scattering) model, it is therefore desirable to
A collimation lens is arranged in the rear focal point of the beam expanding lens 310, so that spherical wave is converted to the satisfactory plane of diameter
Wave is more nearly the detection model of Mie theory.The effect of the diaphragm 340 is carried out to by the light beam of collimation lens
Limitation, to obtain suitable spot size.
On the basis of the above embodiments, in the preferred embodiment of the application, as shown in figure 4, the auxiliary swashs
Light device group 400 includes four auxiliary detection lasers, and it is saturating that four auxiliary detection laser is uniformly distributed in the Fourier
500 surrounding of mirror.
It should be noted that the laser-assisted group 400 can also be auxiliary for five in one embodiment of the application
Help detection laser or six auxiliary detection lasers.The application, which detects the auxiliary that the laser-assisted group 400 includes, to be swashed
The quantity of light device and without limitation, specifically depending on actual conditions.
Based on any of the above embodiments, in one embodiment of the application, the auxiliary detection laser is
Blue laser or red laser or green (light) laser.The application does not do the specific type of the auxiliary detection laser
It limits, specifically depending on actual conditions.But in the preferred embodiment of the application, the auxiliary detection laser is blue light
Laser.
It should be noted that the wavelength of grain diameter and incident ray determines the distribution model of scattering light in sample to be tested
It encloses.Under identical angle of scattering, optical wavelength is shorter, and corresponding partial size is smaller.Therefore use the blue laser of short wavelength as institute
Stating auxiliary detection laser can be with the droplet measurement lower limit of the entire gas detecting system of further expansion.
It is understood that can also be swashed using the shorter ultraviolet laser of optical maser wavelength is sent as auxiliary detection
Light device.But since the cost of ultraviolet laser is higher, and ultraviolet laser detects the reasons such as more difficult, therefore blue laser is made
It is more preferred a kind of way under current technology for the auxiliary detection laser.
Correspondingly, the embodiment of the present application also provides a kind of gas detecting systems, for detecting under test gas, such as Fig. 5 institute
Show, the system comprises: at least one multi-point cooperative mode of laser group A10, gas sample chamber as described in above-mentioned any embodiment
A20, detection device A30 and processing system A40；Wherein,
The gas sample chamber A20 is for storing sample to be tested；
The multi-point cooperative mode of laser group A10 is used to send main detection laser and at least four to the gas sample chamber A20
Beam auxiliary detection laser, the main detection laser enter the gas sample chamber A20 in a manner of normal incidence, and at least four beams are auxiliary
Help detection laser with the incident gas sample chamber A20 of different angle；
The detection device A30, which is used to detect, carries sample to be tested information by gas sample chamber A20 outgoing
Main detection laser and at least four beams auxiliary detection laser, and be transferred to the processing system A40；
The processing system A40 is used to carry the main detection laser of sample to be tested information according to and at least four beams are auxiliary
Detection laser is helped to obtain the sample to be tested information of sample to be tested in the gas sample chamber A20.
It should be noted that the sample to be tested information includes the particle size, size distribution of particle, grain in sample to be tested
Spend the information such as concentration.
On the basis of the above embodiments, in one embodiment of the application, as shown in figure 5, the detection device A30
Including key light electric explorer A32 and auxiliary detector A31；Wherein,
The key light electric explorer A32, which is used to detect, carries sample to be tested by gas sample chamber A20 outgoing
The main detection laser of information；
The auxiliary detector A31, which is used to detect, carries sample to be tested letter by gas sample chamber A20 outgoing
At least four auxiliary of breath detect laser.
It should be noted that since the exiting angle range of described at least four auxiliary detection laser is larger, it is described
Auxiliary detector A31 needs to have the function of wide-angle detection.
In conclusion the embodiment of the present application discloses a kind of multi-point cooperative mode of laser group A10 and gas detecting system；Its
In, the multi-point cooperative mode of laser group A10 can send main detection to the gas sample chamber A20 in the form of normal incidence and swash
Light, while at least four auxiliary can be sent to the gas sample chamber A20 in a manner of oblique incidence and detect laser；Due to it is described extremely
The incident direction of few four beams auxiliary detection laser and the incident direction of the main detection laser are all different, and are scattered by under test gas
The sample to be tested information entrained by light that gas sample chamber A20 is totally reflected also is all different afterwards, therefore to sample to be tested
It, can be with by the sample to be tested information that the main detection laser of gas sample chamber A20 outgoing carries during being detected
Sample to be tested information entrained by laser is detected by least four auxiliary being emitted by the gas sample chamber A20 to make up,
It ensure that the comprehensive of under test gas information detection, to effectively expand the lower limit of droplet measurement, and then improve whole
The detection accuracy of a gas detecting system and the reliability of detection data.
And due to the integrative packaging of the package casing 100, so that the multi-point cooperative mode of laser group A10 is with good
Good stability.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of multi-point cooperative mode of laser group, applied to the gas detecting system based on light scattering method, the detection system includes
Gas sample chamber；It is characterized in that, the multi-point cooperative mode of laser group includes:
Package casing, the package casing include exit facet；
The main detection laser being set to inside the package casing, for sending main detection laser；
The collimating and beam expanding system being set between the main detection laser and the exit facet, for the main detection laser
Carry out collimator and extender processing；
The fourier lense being set in the exit facet, the fourier lense are the structure of reverse Fourier transformation, are used for
To by collimator and extender, treated obtains main detection laser, the main detection after main detection laser carries out reverse Fourier transformation
Laser enters the gas sample chamber in a manner of normal incidence；
The laser-assisted group being set in the exit facet, the laser-assisted group include that at least four auxiliary detect laser
Device, at least four auxiliary detection laser are set to the fourier lense surrounding, are used in a manner of oblique incidence to described
Gas sample chamber sends at least four beams auxiliary detection laser；
It is set in the package casing, the control device connecting with the main detection laser and laser-assisted group is used for
The main detection laser is driven to send main detection laser and for driving the laser-assisted to send the auxiliary inspection of at least four beams
Survey laser.
2. multi-point cooperative mode of laser group according to claim 1, which is characterized in that the control device is also used to obtain institute
The temperature of main detection laser and laser-assisted group is stated, and is stablized in preset temperature range.
3. multi-point cooperative mode of laser group according to claim 2, which is characterized in that the control device includes: that temperature passes
Sensor, processing unit, refrigerator and driving circuit；Wherein,
The driving circuit is for driving the main detection laser to send main detection laser and the driving laser-assisted group
At least four beams auxiliary detection laser is sent, and keeps the wavelength of the main detection laser and at least four beams auxiliary detection laser
Stablize；
The temperature sensor is used to obtain the temperature information of the main detection laser and laser-assisted group；
The processing unit controls the work shape of the refrigerator according to the temperature information for obtaining the temperature information
State.
4. multi-point cooperative mode of laser group according to claim 3, which is characterized in that the processing unit is single-chip microcontroller or micro-
Processor.
5. multi-point cooperative mode of laser group according to claim 1, which is characterized in that the collimating and beam expanding system includes:
The beam expanding lens being set between the main detection laser and the exit facet；
It is set to pin hole of the beam expanding lens far from the main detection laser side；
It is set to collimating mirror of the pin hole far from the beam expanding lens side；
It is set to diaphragm of the collimating mirror far from the pin hole side.
6. multi-point cooperative mode of laser group according to claim 1, which is characterized in that the laser-assisted group includes four
Detection laser is assisted, four auxiliary detection laser is uniformly distributed in the fourier lense surrounding.
7. multi-point cooperative mode of laser group according to claim 1-6, which is characterized in that the auxiliary detects laser
Device is blue laser or red laser or green (light) laser.
8. multi-point cooperative mode of laser group according to claim 1-6, which is characterized in that the main detection laser
For red laser.
9. a kind of gas detecting system, for detecting under test gas, which is characterized in that the system comprises: at least one is as weighed
Benefit requires the described in any item multi-point cooperative mode of laser groups of 1-8, gas sample chamber, detection device and processing system；Wherein,
The gas sample chamber is for storing sample to be tested；
The multi-point cooperative mode of laser group is used to send main detection laser and the auxiliary detection of at least four beams to the gas sample chamber
Laser, the main detection laser enter the gas sample chamber in a manner of normal incidence, at least four beams auxiliary detection laser with
The incident gas sample chamber of different angle；
The detection device is used to detect to be swashed by the main detection for carrying sample to be tested information that the gas sample chamber is emitted
Light and at least four beams auxiliary detection laser, and it is transferred to the processing system；
The processing system is used to carry main detection laser and the auxiliary detection of at least four beams of sample to be tested information according to
Laser obtains the sample to be tested information of sample to be tested in the gas sample chamber.
10. gas detecting system according to claim 9, which is characterized in that the detection device includes main photodetection
Device and auxiliary detector；Wherein,
The key light electric explorer is for detecting the main inspection for carrying sample to be tested information being emitted by the gas sample chamber
Survey laser；
The auxiliary detector is for detecting carry sample to be tested information at least four being emitted by the gas sample chamber
Item auxiliary detection laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610223803.2A CN105891075B (en) | 2016-04-12 | 2016-04-12 | A kind of multi-point cooperative mode of laser group and gas detecting system |
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| CN108645770A (en) * | 2018-07-24 | 2018-10-12 | 安徽尼古拉电子科技有限公司 | A kind of integrated laser haze detecting system based on computer vision |
| CN109470148A (en) * | 2018-12-07 | 2019-03-15 | 哈尔滨工业大学 | Rotating cylindrical surface mirror high resolution stereo visual system and measurement method |
| CN109596063B (en) * | 2018-12-07 | 2020-07-28 | 哈尔滨工业大学 | Multi-wavelength high-resolution stereo vision measuring device and method |
| CN109579700B (en) * | 2018-12-07 | 2020-07-28 | 哈尔滨工业大学 | Disc scanning high-resolution stereo vision measuring system and method |
| CN109470144B (en) * | 2018-12-07 | 2020-11-20 | 哈尔滨工业大学 | Line scanning high-resolution stereo vision measuring system and method |
| CN109470143B (en) * | 2018-12-07 | 2020-07-28 | 哈尔滨工业大学 | External light source high-resolution stereo vision measuring system and method |
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