CN105842748B - A kind of vehicle-mounted Raman long-distance detection device of dangerous material - Google Patents
A kind of vehicle-mounted Raman long-distance detection device of dangerous material Download PDFInfo
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- CN105842748B CN105842748B CN201610392990.7A CN201610392990A CN105842748B CN 105842748 B CN105842748 B CN 105842748B CN 201610392990 A CN201610392990 A CN 201610392990A CN 105842748 B CN105842748 B CN 105842748B
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- laser
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- dangerous material
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
-
- 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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/65—Raman scattering
Abstract
The vehicle-mounted Raman long-distance detection device of dangerous material provided by the invention, due to including multiple laser excitation transport parts and at least one Raman signal forming portion, multiple detection light spot laser dot matrix can be formed on remote road surface, thus can on a large scale be scanned and form Raman signal；It may move again due to expanding convex mirror, it is possible to change distance between laser excitation position and laser propagation unit, so that the dangerous material on long-range detection road surface；Again because control process portion receives laser to the pulse electrical signal for forming the optical path distance of Raman signal, the rate signal of vehicle and laser, according to the pulse electrical signal and rate signal of feedback, and combine spread speed and optical path distance, the time of control detection Raman signal, so enhancing the sensitivity of detection, realize rapidly whether judgment object is dangerous material and confirms its position.
Description
Technical field
The present invention relates to a kind of vehicle-mounted Raman long-distance detection device of dangerous material, belong to laser detection field.
Background technology
After Paris attack case occurs within 2015, city and road safety issues gradually mention agenda by various countries.And
Using dangerous material such as the Toxic for being hidden in road surface, inflammable, explosive substances, vehicular traffic is attacked, communications and transportation is blocked, is illegal point
Son endangers the conventional means of urban safety, often results in serious casualties.Therefore, using new science and technology, development one kind is non-to be connect
Touch, be remote, a wide range of, quick detection and lock dangerous material probe vehicles it is very necessary, have to city security construction important
Realistic meaning.
Raman detection is current the most frequently used unknown material composition demarcation means in the world.It is by irradiating beam of laser to spy
Survey on thing, then the Raman spectrum of detection scattering light, unknown material composition is demarcated using molecular structure spectral line.Because it possess it is lossless,
Accurately, the peculiar advantage such as high sensitivity, Raman detection technology are widely used in fields such as hazardous material detections in recent years.At present compared with
For the Raman detection means of maturation, detection range is generally used in the unknown material composition demarcation within 50 centimetres.
Existing Raman standoff detection system, it is that the point-to-point detection that detector and detectable substance relative position are fixed is (fixed
Point detection), detection time is in 2 to 10 minutes.But this Raman is pinpointed into detecting system, it is mounted on the move vehicle-mounted
On chassis, as vehicle-mounted detection device, while vehicle is advanced with certain speed, implement medium and long distance detection, then exist several
Big problem：1) vehicle-mounted dangerous material detection system generally detects in vehicle traveling, and speed is generally greater than 5 meter per seconds, and this requires car
While the detection range of set detection system is remote enough, detection system must be sufficiently fast with the time of fire alarming to dangerous material, so as to
Ensure to go out after dangerous material provide warning instruction in system detectio, also retain between systemic vectors and dangerous material certain safety away from
From.And tradition pinpoints detection means due to needing the detection time of 2 to 10 minutes, therefore can not be alarmed within effective time；2)
Conventional solid Raman detection uses single-point detection means, several centimeters or so of investigative range.Therefore traditional Raman detection technology, can not
Meet the requirement detected on a large scale to front ground；3) travel speed of vehicle is often a variable, and traditional Raman detection
The built-in time of integration of system is given in advance, can not realize the normalized to signal obtained by feeding back at different moments.
In summary some, traditional Raman detection system, due to fixed point detection and spot measurement in terms of dependence, so in actual car
Played a role in load remote scanning system and extremely limited.
The content of the invention
The present invention proposes to solve the above problems, it is therefore intended that by multiple laser constitution laser dot-matrixes and simultaneously
A kind of passage time feedback control, there is provided vehicle-mounted Raman long-distance detection dress of dangerous material that can on a large scale and simultaneously and rapidly detect
Put, present invention employs following technical scheme：
A kind of vehicle-mounted Raman long-distance detection device of dangerous material, in vehicle travel process, for detecting remote road surface
On object, judge whether it is dangerous material, and provide the road surface position of dangerous material, it is characterised in that including：At least two swash
Light excites communication portion, and parallel detection is formed for producing multiple rows of parallel laser and propagating laser to remote road surface
Hot spot, laser excitation communication portion include laser and laser propagation unit；At least one raman spectral signal forming portion, Raman light
Spectrum signal forming portion collects unit, beam shaping convergence unit and Raman spectrum unit including receiving, and reception collects unit use
In receiving laser propagation to caused scattering light behind road surface and accumulate light beam, have and receive concave mirror, beam shaping money order
Member is used to carry out shaping and converge and be propagated further from receiving the scattering light that collects unit, and Raman spectrum unit is used for will be from
Detection obtains Raman light after the scattering light filtering of beam shaping convergence cell propagation is separated into the Raman diffused light suitably detected
Spectrum signal；And control process portion, for receiving raman spectral signal and judging to draw according to the result contrasted with data with existing
Whether the graceful spectral signal raman spectral signal comes from dangerous material, wherein, laser propagation unit includes swashing for receiving laser
The laser of hair and further diffusive transport expand convex mirror and received through expanding laser that convex mirror diffusive transport comes and will
The aggregation convex lens that laser is assembled a long way off, focus on convex lens and may move, by focusing on moving horizontally for convex lens, for changing
Distance between laser excitation position and laser propagation unit, beam shaping convergence unit include the first of adjustment light beam locus
The reception that level crossing and the received concave mirror of receiving are propagated through the scattering light come and be propagated further after scattering light is dissipated is convex
Face mirror, Raman forming portion also include light path steering unit, for changing the propagation side for receiving convex mirror and being propagated through the scattering light come
To with the detection direction of face Raman spectrum unit, including multiple level crossings, control process portion, also propagated by receiving light path
Laser pulse electric signal that range information, laser are sent, the travel speed signal of vehicle, and after being handled, for controlling
The time of startup detection Raman diffused light realizes rapidly whether judgment object is dangerous material, while confirm its position.
The vehicle-mounted Raman long-distance detection device of dangerous material provided by the invention, can also have the feature that：Wherein, light
Road steering unit includes the first level crossing and the second level crossing, and the second level crossing receives the scattering light that convex mirror propagation comes and entered
One step is broadcast to the 3rd level crossing, and the 3rd level crossing is arranged at the top of the second level crossing, is propagated for changing the second level crossing
Scattering light direction.
The vehicle-mounted Raman long-distance detection device of dangerous material provided by the invention, can also have the feature that：Wherein, swash
Light propagation unit also includes high reflective mirror, is arranged between laser and the propagation light path for expanding concave mirror, facilitates paths
Regulation.
The vehicle-mounted Raman long-distance detection device of dangerous material provided by the invention, can also have the feature that：Wherein, expand
Beam convex mirror, the surface for focusing on convex lens and high reflective mirror have a surface coating, what the material of surface coating excited with laser
The output wavelength of laser matches.
The vehicle-mounted Raman long-distance detection device of dangerous material provided by the invention, can also have the feature that：Wherein, light
Beam shaping convergence unit also includes at least one set of face microscope group, between being arranged on the first level crossing and receiving convex mirror propagation light path,
For further spot shaping, face microscope group includes middle concave mirror, the fourth plane mirror set according to paths direction.
The vehicle-mounted Raman long-distance detection device of dangerous material provided by the invention, can also have the feature that：Wherein,
One level crossing is horizontally moveable, to adjust dispersion angle of the Raman light in detection system.Dangerous material car provided by the invention
Raman long-distance detection device is carried, can also be had the feature that：Wherein, wherein, laser is using solid state laser, thin slice
Any one in the laser such as laser and optical fiber laser.
The vehicle-mounted Raman long-distance detection device of dangerous material provided by the invention, can also have the feature that：Wherein, swash
Light device uses output wavelength in the laser of ultraviolet light wave band.
The vehicle-mounted Raman long-distance detection device of dangerous material provided by the invention, can also have the feature that：Wherein, connect
Concave mirror is received, using plano-concave cylindrical mirror.
The vehicle-mounted Raman long-distance detection device of dangerous material provided by the invention, can also have the feature that：Wherein, draw
The ICCD detectors detection Raman diffused light that graceful forming portion uses.
Invention effect and effect
According to the vehicle-mounted Raman long-distance detection device of dangerous material provided by the invention, due to being propagated including multiple laser excitations
Portion and at least one raman spectral signal forming portion, multiple detection light spot laser dot matrix can be formed on remote road surface, this
Sample can is scanned simultaneously and forms raman spectral signal on a large scale；Again due to focus on convex lens may move, pass through by
It, which is moved horizontally, can change its relative distance for expanding convex mirror, and the distance slightly changes, it is possible on road surface farther out
Detection hot spot is formed, so that the dangerous material on long-range detection road surface；Again because control process portion receives laser
To the pulse electrical signal for forming the optical path distance of raman spectral signal, the rate signal of vehicle and laser, according to feedback
Pulse electrical signal and rate signal, and spread speed and optical path distance are combined, the time of control detection raman spectral signal, so
The sensitivity of detection is enhanced, can realize rapidly whether judgment object is dangerous material, and confirm its position simultaneously.
Brief description of the drawings
Fig. 1 is the operation principle schematic diagram of the vehicle-mounted Raman long-distance detection device of dangerous material of the embodiment of the present invention；
Fig. 2 is work signal of the vehicle-mounted Raman long-distance detection device of dangerous material of the embodiment of the present invention in vehicle traveling
Figure.
Fig. 3 is the structure and operating diagram of the laser excitation communication portion of the embodiment of the present invention；
Fig. 4 is the structure and operating diagram of the raman spectral signal forming portion of the embodiment of the present invention.
Embodiment
Embodiment
Illustrate the embodiment of embodiments of the invention below in conjunction with accompanying drawing.
Fig. 1 is the overall work principle schematic of the vehicle-mounted Raman long-distance detection device of dangerous material of the embodiment of the present invention.
Fig. 2 is work signal of the vehicle-mounted Raman long-distance detection device of dangerous material of the embodiment of the present invention in vehicle traveling
Figure.
As shown in Figure 1 and Figure 2, the vehicle-mounted Raman long-distance detection device 10 of dangerous material is arranged in vehicle 200, including at least
Two laser excitation communication portions 11, at least one raman spectral signal forming portion 12 and data processing division 13.Due to single drawing
The detectable area area of graceful spectral signal forming portion 12, generally higher than single laser excitation communication portion 11 actually excite propagation poly-
The region area that Jiao obtains, so generally the number of raman spectral signal forming portion 12 passes less than or equal to laser excitation
Broadcast portion 11.In the present embodiment, laser excitation communication portion is six, and raman spectral signal forming portion is three.
Fig. 3 is the structure and operating diagram of the laser excitation communication portion of the embodiment of the present invention.
As shown in figure 3, totally six laser excitation communication portions 11, do not shown completely in figure, centre represents do not have with ellipsis
There are the several laser excitation communication portions 11 shown.Each laser excitation communication portion 11 includes laser 14 and laser propagation unit
15。
Laser 14 is used for excitation laser, using the laser for exciting ultraviolet band, can be swashed with solid state laser, thin slice
Any one of light device, optical fiber laser, the laser of ultraviolet band is excited in the present embodiment using optical fiber laser.
The laser that laser propagation unit 15 is used for exciting in laser 14 is earthward propagated.Including in " Z " font order cloth
The high reflective mirror 16 put, expand convex mirror 17 and focus on convex lens 18.
High reflective mirror 16 is used for causing the light path of laser propagation to be easy to be conditioned.
Expand after convex mirror 17 is expanded the laser that high reflective mirror 16 is propagated and be propagated further.
Focus on the reception of convex lens 18 and expand the laser that the propagation of convex mirror 17 comes, and gathered on the road surface of the distant place of vehicle 200
Jiao, the object on road surface at focusing are scattered to the laser, form scattering light.It is automatically controlled that focusing convex lens 18 are arranged on first
In platform (not shown), by controlling electric control platform to move, the horizontal level for focusing on convex lens 18 can be controlled.
High reflective mirror 16, expand convex mirror 17 and focus on convex lens 18 surface be provided with surface coating, it is their own
The selection of surface coating selects according to the wavelength of the output laser of laser 15.
More set laser excitation communication portions 11 are arranged side by side.
Fig. 4 is the structure and operating diagram of the raman spectral signal forming portion of the embodiment of the present invention.
As shown in figure 4, each raman spectral signal forming portion 12 collects unit 19, beam shaping convergence unit including reception
20th, light path steering unit 21 and Raman spectrum unit 22.
Reception, which collects unit 19 and is used for receiving collecting ground laser excitation communication portion 11 and exciting, travels to quilt after the object of road surface
Scattering light caused by scattering is simultaneously propagated further.Using reception concave mirror 19.
Beam shaping convergence unit 20 includes the first level crossing 23, middle concave mirror 24, fourth plane mirror 25 and received
Convex mirror 26.Converged for beam shaping.
First level crossing 23 is placed in the second electronic control translation stage (not shown), to facilitate regulation Raman diffused light to gather
Burnt locus, probe unit 21 of being easy to be split detect.
25 two middle concave mirror 24, fourth plane mirror elements are referred to as one group, for that will propagate dissipate from concave mirror 22
Penetrate light progress follow-up resume of spot shaping to broadcast, they can include more than one group, be one group in the present embodiment.
Receive convex mirror 26 and be used to receiving fourth plane mirror 25 and propagate the scattering light come and carry out shaping, and by the scattering light
It is propagated further after being dissipated.Receive convex mirror 26 and use plano-convex cylindrical lens.
Light path steering unit 21 includes the second level crossing 27 and the 3rd level crossing 28.
Second level crossing 27 receives the scattering light that the propagation of convex mirror 26 comes and is propagated further to the 3rd level crossing 28, the
Three level crossings 28 are arranged at the upper end of the vertical direction of the second level crossing 27, and the direction of propagation for scattering light is turned to by parallel ground
For horizontal transmission again after perpendicular to the ground.
Raman spectrum unit 22 is perpendicular to ground, including narrow band filter slice 29, slit 30, optical splitter 31 and detector
32。
The scattering light that narrow band filter slice 29 is used to propagate the 3rd level crossing 28 is filtered filtering, removes other scatterings
Veiling glare, obtain Raman diffused light and be propagated further, slit 30 is used to allowing suitable Raman diffused light will be from narrow by, optical splitter 31
The light beam that the Raman diffused light that seam 30 passes through be divided into different wave length is propagated further, the drawing after the detection light splitting of detector 32
Graceful scattering light obtains Raman spectrum, and Raman spectrum is converted into raman spectral signal and is propagated further.
Detector 32 uses ICCD, equipped with ultraviolet enhancing function.
Control process portion 13 and Raman spectrum unit 21 connect, and receive raman spectral signal, are contrasted according to data with existing
Judge its whether be dangerous material raman spectral signal；
Control process portion 13 and car speed inductor 33 connect, and receive the rate signal that feedback is come；Also with laser 14
Connection, receive the pulse electrical signal that laser 14 launches the feedback of laser；
Control process portion 13 connects with each laser excitation communication portion 11 respectively, receives laser propagation and focuses on to be formed to road surface
Detect the first distance signal of hot spot；
Control unit 13 connects with each raman spectral signal forming portion 12 respectively, receive detection hot spot formed scattering light until
The second distance signal of detector 32；
Control unit 13 according to the pulse electrical signal and rate signal of feedback, and combine laser and scatter the spread speed of light with
And first distance signal, second distance signal, control detector 32 detect the time of raman spectral signal, realization rapidly judges
Whether object is dangerous material, and confirms its position simultaneously；
The course of work：
Using the travel speed of vehicle 200 as 8.2 meter per seconds, 300 wide 5 meters of road surface, the size of road surface object 400 for 0.5 meter ×
Exemplified by 0.5 meter, illustrate.
1st, paths and formation raman spectral signal process：
Laser is launched by the laser 14 for singly covering laser excitation communication portion 11, by controlling the first electric control platform, control
The relative horizontal level for expanding convex mirror 17 of convex lens 18 is focused on, and then adjusts focusing of the laser in the distant place of vehicle 200 and forms spy
The position of light-metering spot, in the present embodiment, form 0.5cm*80cm strips after adjustment on the road surface 300 of distant place before vehicle 200
Hot spot.Six sets of laser excitation communication portions 11 are arranged side by side, and six transversely arranged 80cm length detection hot spots are formed on road surface, are formed
The ultraviolet dot matrix of laser, cover 5 meters of wide road surfaces, the linear advancement beam spot scans road surface under steam of vehicle 200.In the row of vehicle 200
Enter in 1 second to scan 5 meters × 5 meters of road surface scope, so, the object on synchronization, whole road surface 300 and road surface
400 all in scanning range and can be synchronously scanned, and in a scan, the object 400 on road surface 300 or road surface will scatter the light
The scattering light that spot is formed.
When the Raman light from road surface 300 or the scattering of object 400 by reception concave mirror 19 it is collected into light beam after, post-tensioning
Graceful light carries out shaping by beam shaping convergence unit 20 and convergence is propagated.The light beam of focusing is beaten by the second level crossing 27 and
On the light path steering unit 21 of three level crossings 28 composition, the propagation for scattering light is spatially turned 90 ° so that by the first level crossing
27 surfaces switch to article shaped laser spot perpendicular to ground from the outgoing of the 3rd level crossing 28, so parallel to the Raman light hot spot on ground
Filter out impurity by narrow band filter slice 29 and obtain Raman diffused light, Raman diffused light from slit 30 by, after through optical splitter 31
It is divided into different-waveband, then is detected by ICCD detectors 32, forms raman spectral signal.It is automatically controlled by control second during this
Platform, the position of the first level crossing 23 can be adjusted, and then adjust the locus that Raman light focuses on, make it preferably by ICCD
Detector 32 detects.
2nd, control process portion 13 judges dangerous material process：
Judge dangerous material process：Control process portion 13 receives the raman spectral signal that said process is formed, by Raman spectrum
Signal and the Raman spectral information data comparison of the various dangerous material stored in database, when the raman spectral signal and number of reception
When being coincide according to the Raman spectral information data of certain dangerous material in storehouse, then judge it for certain dangerous material；
3. control process portion 13 controls ICCD detectors 32 to detect the process started：
First, during laser 14 sends laser, because control process portion 13 is connected with each laser 14,
When laser 14 often sends a laser, control process portion 13 will all receive pulse electrical signal, so as to know that laser 14 is sent out
Go out T1 at the time of sending laser every time；Meanwhile control process portion 13 also receives the speed sensor 33 of connected vehicle
The rate signal that feedback is come, so as to know the travel speed V1 of the vehicle when sending laser；
Secondly, control process portion 13 record from the laser that laser 14 is sent at the time of T1；And record and excite remote road
After face object 400, relative instant T2 is detected by detector 32 backwards to the scattering light propagated；In conjunction with electric signal time delay
It is exactly that laser is between vehicle and remote road surface object 400 in vehicle operation with detector 32 analysis time T3, T1-T2-T3
Propagation time T back and forth；
Thirdly, because speed can be ignored relative to ray velocity, with reference to light velocity c, vehicle to remote road surface object 400
Distance S be cT/2；
Formed due to being the dot matrix synchronizing detection of multiple tracks laser composition in actual detection, therefore when detector 14 starts detection
Raman signal is broadcast to after control process portion 13 is judged as dangerous material, control process portion search coverage corresponding to, it is possible to
Know that dangerous material are appeared in that light path, with reference to knowable dangerous material distance S, it is possible to anti-to release the specific of dangerous material appearance
Place.
The effect of embodiment and effect
According to the vehicle-mounted Raman long-distance detection device of dangerous material provided by the invention, due to being propagated including multiple laser excitations
Portion and at least one Raman signal forming portion, multiple detection light spot laser dot matrix can be formed on remote road surface, thus
It can on a large scale be scanned simultaneously and form Raman signal；It may move again due to focusing on convex lens, pass through movement, Ke Yigai
Become its relative distance for expanding convex mirror, the distance slightly adjusts, it is possible to the focal position of laser on road surface farther out, so that
Obtaining can be with the dangerous material on long-range detection road surface；Again because control process portion receives laser to the light path for forming Raman signal
The pulse electrical signal of distance, the rate signal of vehicle and laser, according to the pulse electrical signal and rate signal of feedback, and is tied
Spread speed and optical path distance are closed, the time of control detection Raman signal, so enhancing the sensitivity of detection, can be realized quick
Whether ground judgment object is dangerous material, and confirms its position simultaneously；
It is again unaffected due to preferably detect in the sun of ultraviolet band, detectivity is further increased, from
And the time for obtain Raman signal further shortens, therefore system can be assembled on the vehicle of traveling, and in vehicle row
Detection distal end road surface in dynamic.
Although the embodiment of description of the invention is described above, in order to the technology of the art
Personnel understand the present invention, it should be apparent that the invention is not restricted to the scope of embodiment, to the common skill of the art
For art personnel, if various change in the spirit and scope of the present invention that appended claim limits and determines, these
Change is it will be apparent that all utilize the innovation and creation of present inventive concept in the row of protection.
Claims (10)
- A kind of 1. vehicle-mounted Raman long-distance detection device of dangerous material, in vehicle travel process, for detecting remote road surface Object, judge whether it is dangerous material, and provide the road surface position of the dangerous material, it is characterised in that including：At least two laser excitation communication portions, for producing multiple rows of parallel laser and by the laser to the remote road Face is propagated and forms parallel detection hot spot, and the laser excitation communication portion includes laser and laser propagation unit；At least one raman spectral signal forming portion, it is whole that the raman spectral signal forming portion including reception collects unit, light beam Shape converges unit and Raman spectrum unit,The reception collects unit and is used to receive the laser propagation to caused scattering light behind the road surface and accumulates light beam, With receive concave mirror,The beam shaping convergence unit is used to collect the scattering light progress shaping of unit from the reception and converges and enter one Step is propagated,The Raman spectrum unit is used to the scattering light filtering for converging cell propagation from the beam shaping being separated into Detection obtains raman spectral signal after the Raman diffused light suitably detected；AndControl process portion, for receiving the raman spectral signal and judging Raman light according to the result contrasted with data with existing Whether the spectrum signal raman spectral signal comes from dangerous material,Wherein, the laser propagation unit includes being used to receive the laser that the laser excites and the further expansion of diffusive transport The laser that convex mirror diffusive transport comes is expanded described in beam convex mirror and reception warp and assembles the laser a long way off Focus on convex lens,The focusing convex lens may move, and be moved horizontally by the focusing convex lens, for change laser excitation position with Distance between laser propagation unit,The beam shaping convergence unit includes the first level crossing of adjustment light beam locus and received recessed through the reception Face mirror is propagated through the scattering light come and the reception convex mirror that will be propagated further after the scattering light diverging,The raman spectral signal forming portion also includes light path steering unit, is propagated through for change reception convex mirror described in coming The direction of propagation of light is scattered with the detection direction of Raman spectrum unit described in face, including multiple level crossings,The control process portion, the laser pulse telecommunications that the range information also propagated by receiving light path, the laser are sent Number, the travel speed signal of the vehicle, and after being handled, start the time for detecting the Raman diffused light for controlling and come Realization rapidly judges whether the object is the dangerous material, while confirms its position.
- 2. the vehicle-mounted Raman long-distance detection device of dangerous material as claimed in claim 1, it is characterised in that：Light path steering unit includes the first level crossing and the second level crossing,Second level crossing receives the next scattering light of convex mirror propagation that receives and is propagated further to the 3rd level crossing,3rd level crossing is arranged at the top of second level crossing, for changing described in the second level crossing propagation Scatter the direction of light.
- 3. the vehicle-mounted Raman long-distance detection device of dangerous material as claimed in claim 1, it is characterised in that：Wherein, the laser propagation unit also includes high reflective mirror, is arranged on the laser and the propagation for expanding concave mirror Between light path, facilitate the regulation of paths.
- 4. the vehicle-mounted Raman long-distance detection device of dangerous material as claimed in claim 3, it is characterised in that：Wherein, the surface for expanding convex mirror, the focusing convex lens and the high reflective mirror has surface coating, the table The output wavelength for the laser that the material of face plated film excites with the laser matches.
- 5. the vehicle-mounted Raman long-distance detection device of dangerous material as claimed in claim 1, it is characterised in that：Wherein, the beam shaping convergence unit also includes at least one set of face microscope group, is arranged on first level crossing and reception Between convex mirror propagates light path, for further spot shaping, the face microscope group is included in being set according to paths direction Between concave mirror, fourth plane mirror.
- 6. the vehicle-mounted Raman long-distance detection device of dangerous material as claimed in claim 5, it is characterised in that：Wherein, first level crossing is horizontally moveable, to adjust dispersion angle of the Raman light in detection system.
- 7. the vehicle-mounted Raman long-distance detection device of dangerous material as claimed in claim 1, it is characterised in that：Wherein, the laser is using any one in the lasers such as solid state laser, thin-sheet laser and optical fiber laser Kind.
- 8. the vehicle-mounted Raman long-distance detection device of dangerous material as claimed in claim 1, it is characterised in that：Wherein, the laser uses output wavelength in the laser of ultraviolet light wave band.
- 9. the vehicle-mounted Raman long-distance detection device of dangerous material as claimed in claim 1, it is characterised in that：Wherein, the reception concave mirror, using plano-concave cylindrical mirror.
- 10. the vehicle-mounted Raman long-distance detection device of dangerous material as claimed in claim 1, it is characterised in that：Wherein, the ICCD detectors that the raman spectral signal forming portion uses detect the Raman diffused light.
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| CN201610392990.7A CN105842748B (en) | 2016-06-06 | 2016-06-06 | A kind of vehicle-mounted Raman long-distance detection device of dangerous material |
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| CN201610392990.7A CN105842748B (en) | 2016-06-06 | 2016-06-06 | A kind of vehicle-mounted Raman long-distance detection device of dangerous material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743719A (en) * | 2013-12-11 | 2014-04-23 | 中国科学院西安光学精密机械研究所 | Remote in-situ integrated test system for planet surface substances and atmosphere |
| CN104458697A (en) * | 2014-12-08 | 2015-03-25 | 成都鼎智汇科技有限公司 | Portable raman spectrum explosive identifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7982869B2 (en) * | 2006-10-24 | 2011-07-19 | Pd-Ld Inc. | Compact, low cost Raman monitor for single substances |
| SE533197C2 (en) * | 2008-02-19 | 2010-07-20 | Portendo Ab | Distance detection of hazardous substances such as explosives and constituents of explosives |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743719A (en) * | 2013-12-11 | 2014-04-23 | 中国科学院西安光学精密机械研究所 | Remote in-situ integrated test system for planet surface substances and atmosphere |
| CN104458697A (en) * | 2014-12-08 | 2015-03-25 | 成都鼎智汇科技有限公司 | Portable raman spectrum explosive identifier |
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