CN205787109U - A kind of multi-wavelength laser radar system echoes signal light-dividing device - Google Patents
A kind of multi-wavelength laser radar system echoes signal light-dividing device Download PDFInfo
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- CN205787109U CN205787109U CN201620579089.6U CN201620579089U CN205787109U CN 205787109 U CN205787109 U CN 205787109U CN 201620579089 U CN201620579089 U CN 201620579089U CN 205787109 U CN205787109 U CN 205787109U
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Abstract
This utility model provides a kind of multi-wavelength laser radar system echoes signal light-dividing device, including: shell；Optical element fixed mount in the enclosure is set；And it is arranged on the optical element on optical element fixed mount；The multi-wavelength laser radar system echoes signal light-dividing device provided by this utility model, by light splitting path after integrated LIDAR mirror, realize the modularized design that multiband Raman Mie scattering signal and air fluorescent signals are detected simultaneously, for promoting the compactedness of system structure design, motility and quick detection multi channel signals provide possibility, and are beneficial to laser radar system carrying out of fast and stable when participation Field observational experiment and detect.
Description
Technical field
This utility model relates to electric field, particularly relates to a kind of multi-wavelength laser radar system echoes signal light splitting dress
Put.
Background technology
Laser radar be one have high time and space resolution, can continuously automatic Observation, atmospheric aerosol can be provided
The active remote sensing detection means of physical optics characteristic and Characteristics of Vertical Distribution, be research aerosol to environment, health and
One of instrument of observation the most effectively of climate change effect.It is mainly by laser emission element, echo signal reception unit and signal
Collecting unit three part forms.Laser emission element by the radiating laser beams after beam-expanding collimation to air, laser beam and air
After particulate matter interacts, backscatter signal is received by echo signal reception unit, according to different detection demands to echo
Signal carries out light splitting, is then converted optical signals to the signal of telecommunication by photodetector and is completed signals collecting by data collecting system
And storage.Wherein, the light splitting part in echo signal reception unit is the key point of whole laser radar system design, is also
The detection diversification of whole laser radar system and advanced core technology can be embodied.
Rich experiences in conjunction with the accumulation of laser radar Field observational experiment in spring the most for many years so that we are to laser radar
In system, signal receiving unit has had deeper understanding.In spring Field observational experiment, laser radar system generally requires companion
Trudge to field movable observation system the test website specified.Thing followed problem first: due to road
Jolting, the optics position in laser radar system changes.After arriving test website, before instrument is formally observed,
The time spending several days is needed to need again to debug to the optical path of whole laser radar system.Especially in the shifting of multiple websites
In dynamic observation experiment, need to take a lot of test periods and Financial cost.Therefore, field inspection examination is reduced the most as far as possible
Take test period in testing and Financial cost problem becomes the problem that we need solution badly.Obviously, laser radar system is returned by this
The stability of ripple signal receiving unit light splitting part and motility propose requirement, and this stability and motility major embodiment
Ensure that in light splitting part the position of optics does not changes the most as far as possible.At present, most of laser that China uses
Radar system all from external import, when participating in Field observational experiment, creates the problem that the laser that system structure compactedness is high
Radar system, although internal optical path is not susceptible to change, but its detection parameter is limited, the most gradually cannot meet test need
The multiformity asked；(2) fraction of laser light radar can meet test detection demand to a certain extent, but its light splitting part is the most not
Have and carry out modularized design, need nonetheless remain for debugging when participating in field test website, and acquisition cost is expensive.
In sum, it is designed to be favorably improved the laser radar echo signal being suitable for participating in field movable observation experiment
The light splitting part receiving unit is the most necessary.
Utility model content
This utility model is intended at least overcome one of drawbacks described above to provide a kind of multi-wavelength laser radar system echoes signal
The carrying out of fast and stable when participating in Field observational experiment detects for light-dividing device, beneficially laser radar system.
For reaching above-mentioned purpose, the technical solution of the utility model is specifically achieved in that
An aspect of the present utility model provides a kind of multi-wavelength laser radar system echoes signal light-dividing device, bag
Include:
Shell；Optical element fixed mount in the enclosure is set；And the optics unit being arranged on optical element fixed mount
Part；Wherein, optical element fixed mount includes: completely reflecting mirror fixed mount, is used for fixing completely reflecting mirror, completely reflecting mirror be configured to by
The echo-signal of the vertical direction transmission that telescope receives is changed into horizontal direction transmission；First dichroscope fixed mount, is used for
Fixing the first dichroscope, the first dichroscope is configured to carry out the echo-signal of completely reflecting mirror transmission the first reflection and first saturating
Penetrate；Second dichroscope fixed mount, is used for fixing the second dichroscope, and the second dichroscope is configured to the first dichroscope is carried out first
The echo-signal of reflection carries out the second reflection and the second transmission；First polarization spectro crystal fixed mount, is used for fixing the first polarization
Analyzing crystal, the first polarization spectro crystal is configured to the echo-signal of second dichroscope the second reflection is carried out polarization manipulation,
The echo-signal that second dichroscope second reflects is divided into horizontal polarization echo-signal and vertical polarization echo-signal；First arrowband
Filter, lens, photomultiplier transit tube fixing device, for fixing the first arrowband filter, the first lens and the first photomultiplier transit successively
Pipe, the first arrowband filter is configured to filter the vertical polarization echo-signal of the first polarization spectro crystal injection, it is allowed to first wave
The optical signal of section passes through, and the optical signal that the first lens are configured to the first arrowband filter filters is focused, the first photoelectricity times
Increase pipe, the optical signal after the focusing receiving the first lens injection, and the optical signal after focusing on is converted to the signal of telecommunication defeated
Go out；Second arrowband filter, lens, photomultiplier transit tube fixing device, for fixing the second arrowband filter, the second lens and the successively
Two photomultiplier tubes, the second arrowband filter is configured to filter the horizontal polarization echo-signal of the first polarization spectro crystal injection,
The optical signal allowing second band passes through, and the optical signal that the second lens are configured to the second arrowband filter filters is focused,
Second photomultiplier tube, for receive second lens injection focusing after optical signal, and will focus on after optical signal be converted to
The signal of telecommunication also exports；3rd dichroscope fixed mount, is used for fixing the 3rd dichroscope, and the 3rd dichroscope is configured to the one or two color
The echo-signal of mirror the first transmission carries out the 3rd reflection and the 3rd transmission；Second polarization spectro crystal fixed mount, is used for fixing
Two polarization spectro crystal, the second polarization spectro crystal is configured to polarize the echo-signal of the 3rd dichroscope the 3rd reflection
Process, the echo-signal of the 3rd dichroscope the 3rd reflection is divided into horizontal polarization echo-signal and vertical polarization echo-signal；The
Three arrowband filters, lens, photomultiplier transit tube fixing device, for fixing the 3rd arrowband filter, the 3rd lens and the 3rd light successively
Electricity multiplier tube, the 3rd arrowband filter is configured to filter the vertical polarization echo-signal of the second polarization spectro crystal injection, it is allowed to
The optical signal of the 3rd wave band passes through, and the optical signal that the 3rd lens are configured to the 3rd arrowband filter filters is focused, and the 3rd
Photomultiplier tube, for receive the 3rd lens injection focusing after optical signal, and will focus on after optical signal be converted to telecommunications
Number and export；4th arrowband filter, lens, photomultiplier transit tube fixing device, for fixing the 4th arrowband filter, the 4th lens successively
And the 4th photomultiplier tube, the 4th arrowband filter is configured to filter the horizontal polarization echo of the second polarization spectro crystal injection
Signal, it is allowed to the optical signal of the 4th wave band passes through, the optical signal that the 4th lens are configured to the 4th arrowband filter filters is carried out
Focus on, the 4th photomultiplier tube, for receive the 4th lens injection focusing after optical signal, and will focus on after optical signal turn
It is changed to the signal of telecommunication and exports；4th dichroscope fixed mount, is used for fixing the 4th dichroscope, and the 4th dichroscope is configured to the 3rd
The echo-signal of dichroscope the 3rd transmission carries out the 4th reflection and the 4th transmission；5th arrowband filter, lens, photomultiplier tube are solid
Determining frame, for fixing the 5th arrowband filter, the 5th lens and the 5th photomultiplier tube successively, the 5th arrowband filter is configured to
Filter the 4th dichroscope the 4th reflection echo-signal, it is allowed to the optical signal of the 5th wave band passes through, the 5th lens be configured to by
The optical signal that 5th arrowband filter filters is focused, the 5th photomultiplier tube, after the focusing receiving the 5th lens injection
Optical signal, and will focus on after optical signal be converted to the signal of telecommunication and export；6th arrowband filter, lens, photomultiplier tube are solid
Determining frame, for fixing the 6th arrowband filter, the 6th lens and the 6th photomultiplier tube successively, the 6th arrowband filter is configured to
Filter the echo-signal of the 4th dichroscope the 4th transmission, it is allowed to the optical signal of the 6th wave band passes through, the 6th lens be configured to by
The optical signal that 6th arrowband filter filters is focused, the 6th photomultiplier tube, after the focusing receiving the 6th lens injection
Optical signal, and will focus on after optical signal be converted to the signal of telecommunication and export；7th lens fixed mount, is used for fixing the 7th saturating
Mirror, the 7th lens are configured to be focused the echo-signal of second dichroscope the second transmission；Fine fiber adjusting mount, is used for
Optical fiber is adjusted, the echo-signal after the 7th lens focus is exported by optical fiber；Wherein, shell includes: first
Circular hole, for carrying out printing opacity to completely reflecting mirror；Second circular hole, for drawing optical fiber.
It addition, multi-wavelength laser radar system echoes signal light-dividing device also includes: fast door fastening device, for fixing fast
Door, shutter is used for completely cutting off high light and enters optical fiber；3rd circular hole, for by the first photomultiplier tube, the second photomultiplier tube, the 3rd
The data wire of photomultiplier tube, the 4th photomultiplier tube, the 5th photomultiplier tube and the output of the 6th photomultiplier tube is drawn.
It addition, the first arrowband filter and the second arrowband filter are 355nm narrow-band filter；3rd arrowband filter and the 4th narrow
Band filter is 532nm narrow-band filter；5th arrowband filter is 607nm narrow-band filter；6th arrowband filter is 660nm arrowband
Filter lens.
The technical scheme that thered is provided by above-mentioned this utility model is it can be seen that the multi-wavelength laser radar that provides of this utility model
System echoes signal light-dividing device, by light splitting path after integrated LIDAR mirror, it is achieved to multiband Raman-Mie scattering signal
And the modularized design that air fluorescent signals detects simultaneously, for promote the compactedness of system structure design, motility and
Quick detection multi channel signals provides possibility, and it is the most steady when participating in Field observational experiment to be beneficial to laser radar system
Fixed carrying out detects.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, required in embodiment being described below
The accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only enforcements more of the present utility model
Example, from the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these accompanying drawings
Obtain other accompanying drawings.
The multi-wavelength laser radar system echoes signal light-dividing device plan structure that Fig. 1 provides for this utility model embodiment
Schematic diagram；
Fig. 2 overlooks internal for the multi-wavelength laser radar system echoes signal light-dividing device that this utility model embodiment provides
Structural representation；
Principle overlooked by the multi-wavelength laser radar system echoes signal light-dividing device that Fig. 3 provides for this utility model embodiment
Structural representation；
The multi-wavelength laser radar system echoes signal light-dividing device side-looking structure that Fig. 4 provides for this utility model embodiment
Schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiment of the present utility model is described in detail.
In conjunction with Fig. 1 to Fig. 4, the multi-wavelength laser radar system echoes signal light splitting dress that this utility model embodiment is provided
Put and illustrate, the multi-wavelength laser radar system echoes signal light-dividing device that this utility model embodiment provides, including:
Shell 10；
The optical element fixed mount being arranged in shell 10；
And it is arranged on the optical element on optical element fixed mount；
Wherein, optical element fixed mount includes:
Completely reflecting mirror fixed mount 20a, is used for fixing completely reflecting mirror 20b, completely reflecting mirror 20b and is configured to receive telescope
To vertical direction transmission echo-signal be changed into horizontal direction transmission；
First dichroscope fixed mount 301a, is used for fixing the first dichroscope 301b, and it is right that the first dichroscope 301b is configured to
The echo-signal of completely reflecting mirror transmission carries out the first reflection and the first transmission；
Second dichroscope fixed mount 302a, is used for fixing the second dichroscope 302b, and it is right that the second dichroscope 302b is configured to
First dichroscope carries out the echo-signal of the first reflection and carries out the second reflection and the second transmission；
First polarization spectro crystal fixed mount 401a, is used for fixing the first polarization spectro crystal 401b, the first polarization spectro
Crystal 401b is configured to the echo-signal of second dichroscope 302b the second reflection is carried out polarization manipulation, by the second dichroscope
The echo-signal of 302b the second reflection is divided into horizontal polarization echo-signal and vertical polarization echo-signal；
First arrowband filter, lens, photomultiplier transit tube fixing device 501a, for fix successively the first arrowband filter 501b1,
First lens 501b1 and the first photomultiplier tube 501b2, the first arrowband filter 501b1 are configured to filter the first polarization and divide
The vertical polarization echo-signal of luminescent crystal 401b injection, it is allowed to the optical signal of first band passes through, and the first lens 501b1 is configured
For the optical signal that the first arrowband filter 501b1 filters is focused, the first photomultiplier tube 501b2, saturating for receiving first
Mirror 501b1 injection focusing after optical signal, and will focus on after optical signal be converted to the signal of telecommunication and export；
Second arrowband filter, lens, photomultiplier transit tube fixing device 502a, for fix successively the second arrowband filter 502b1,
Second lens 502b1 and the second photomultiplier tube 502b2, the second arrowband filter 502b1 are configured to filter the first polarization and divide
The horizontal polarization echo-signal of luminescent crystal 401b injection, it is allowed to the optical signal of second band passes through, and the second lens 502b1 is configured
For the optical signal that the second arrowband filter 502b1 filters is focused, the second photomultiplier tube 502b2, saturating for receiving second
Mirror 502b1 injection focusing after optical signal, and will focus on after optical signal be converted to the signal of telecommunication and export；
3rd dichroscope fixed mount 303a, is used for fixing the 3rd dichroscope 303b, and it is right that the 3rd dichroscope 303b is configured to
The echo-signal of first dichroscope 302b the first transmission carries out the 3rd reflection and the 3rd transmission；
Second polarization spectro crystal fixed mount 402a, is used for fixing the second polarization spectro crystal 402b, the second polarization spectro
Crystal 402b is configured to the echo-signal of the 3rd dichroscope 303b the 3rd reflection is carried out polarization manipulation, by the 3rd dichroscope
The echo-signal of 303b the 3rd reflection is divided into horizontal polarization echo-signal and vertical polarization echo-signal；
3rd arrowband filter, lens, photomultiplier transit tube fixing device 503a, for fix successively the 3rd arrowband filter 503b1,
3rd lens 503b1 and the 3rd photomultiplier tube 503b2, the 3rd arrowband filter 503b1 are configured to filter the second polarization and divide
The vertical polarization echo-signal of luminescent crystal 402b injection, it is allowed to the optical signal of the 3rd wave band passes through, and the 3rd lens 503b1 is configured
For the optical signal that the 3rd arrowband filter 503b1 filters is focused, the 3rd photomultiplier tube 503b2, saturating for receiving the 3rd
Mirror 503b1 injection focusing after optical signal, and will focus on after optical signal be converted to the signal of telecommunication and export；
4th arrowband filter, lens, photomultiplier transit tube fixing device 504a, for fix successively the 4th arrowband filter 504b1,
4th lens 504b1 and the 4th photomultiplier tube 504b2, the 4th arrowband filter 504b2 are configured to filter the second polarization and divide
The horizontal polarization echo-signal of luminescent crystal 402b injection, it is allowed to the optical signal of the 4th wave band passes through, and the 4th lens 504b1 is configured
For the optical signal that the 4th arrowband filter 504b1 filters is focused, the 4th photomultiplier tube 504b2, saturating for receiving the 4th
Mirror 504b1 injection focusing after optical signal, and will focus on after optical signal be converted to the signal of telecommunication and export；
4th dichroscope fixed mount 304a, is used for fixing the 4th dichroscope 304b, and it is right that the 4th dichroscope 304b is configured to
The echo-signal of the 3rd dichroscope 303b the 3rd transmission carries out the 4th reflection and the 4th transmission；
5th arrowband filter, lens, photomultiplier transit tube fixing device 505a, for fix successively the 5th arrowband filter 505b1,
5th lens 505b1 and the 5th photomultiplier tube 505b2, the 5th arrowband filter 505b1 are configured to filter the 4th dichroscope
The echo-signal of 304b the 4th reflection, it is allowed to the optical signal of the 5th wave band passes through, and the 5th lens 505b1 is configured to the 5th narrow
The optical signal filtered with filter 505b1 is focused, the 5th photomultiplier tube 505b2, for receiving the 5th lens 505b1 injection
Focusing after optical signal, and will focus on after optical signal be converted to the signal of telecommunication and export；
6th arrowband filter, lens, photomultiplier transit tube fixing device 506a, for fix successively the 6th arrowband filter 506b1,
6th lens 506b1 and the 6th photomultiplier tube 506b2, the 6th arrowband filter 506b1 are configured to filter the 4th dichroscope
The echo-signal of 304b the 4th transmission, it is allowed to the optical signal of the 6th wave band passes through, the 6th lens 506b1 is configured to the 6th narrow
The optical signal filtered with filter 506b1 is focused, the 6th photomultiplier tube 506b2, for receiving the 6th lens 506b1 injection
Focusing after optical signal, and will focus on after optical signal be converted to the signal of telecommunication and export；
7th lens fixed mount 60a, is used for fixing the 7th lens 60b, the 7th lens 60b and is configured to the second dichroscope
The echo-signal of 302b the second transmission is focused；
Fine fiber adjusting mount 80, for being adjusted optical fiber 90, the echo-signal after being focused on by the 7th lens 60b is led to
Cross optical fiber 90 to export；
Wherein, shell 10 includes:
First circular hole 101, for carrying out printing opacity to completely reflecting mirror 20b；
Second circular hole 102, for drawing optical fiber 90.
As can be seen here, the multi-wavelength laser radar system echoes signal light-dividing device that this utility model provides, by integrated
Light splitting path after laser radar mirror, it is achieved multiband Raman-Mie scattering signal and air fluorescent signals are detected simultaneously
Modularized design, provides possibility for promoting the compactedness of system structure design, motility and quick detection multi channel signals,
And be beneficial to laser radar system participate in Field observational experiment time fast and stable carrying out detect.
As an optional embodiment of this utility model embodiment, the multi-wavelength that this utility model embodiment provides swashs
Optical detection and ranging system echo-signal light-dividing device also includes:
Fast door fastening device 70, is used for fixing shutter, and shutter is used for completely cutting off high light and enters optical fiber 90；
3rd circular hole 103, for by the first photomultiplier tube, the second photomultiplier tube, the 3rd photomultiplier tube, the 4th light
The data wire of electricity multiplier tube, the 5th photomultiplier tube and the output of the 6th photomultiplier tube is drawn.
Echo-signal after being focused on by the 7th lens 60b due to optical fiber 90 transmits the grating spectrograph to 32 passages, but
It is that daytime is very strong because of background signal, grating spectrograph can be given and damage, so shutter is in closed mode by day, completely cut off
The high light on daytime is entered to optical fiber；To night, background signal weakens, and shutter automatically opens up, and allows echo-signal pass through, thus originally
The multi-wavelength laser radar system echoes signal light-dividing device that utility model embodiment provides can ensure that the peace of grating spectrograph
Quan Xing.
Specifically, the shell 10 that this utility model embodiment provides, can be that the can of blackout is (due to can requirement
It is completely black, therefore metal is done blackening process, form the can of blackout), fixed component can use M4 hexagon socket head cap screw
It is fixed；Wherein: can be cube can, it is mainly used in installing the fixed mount of optical element, light the most at last
Learn element and be integrated in this can one entirety of formation.This utility model is not limited to the shape of can, except cube
Outside can, it is also possible to be designed as different shapes according to ambient conditions, this does not limit in this utility model.
Hereinafter, with instantiation, multi-wavelength laser radar system echoes signal light-dividing device of the present utility model is described,
But this utility model is not limited thereto:
Completely reflecting mirror 20b: be positioned at telescopical bottom, Main Function is the vertical direction transmission received by telescope
Echo-signal is changed into horizontal direction transmission.
First dichroscope 301b, the second dichroscope 302b, the 3rd dichroscope 303b, the 4th dichroscope 304b: according to difference
Wavelength band, reflect a part of wave band, transmission another part wave band.
Narrow band pass filter: use tetra-kinds of narrow band pass filters of 355nm, 532nm, 607nm and 660nm.Main Function is respectively
The optical signal allowing aforementioned four wave band passes through, and filters the optical signal of its all band.Specifically, as this utility model embodiment
An optional embodiment, the first arrowband filter 501b1 and the second arrowband filter 502b1 is 355nm narrow-band filter；3rd
Arrowband filter 503b1 and the 4th arrowband filter 504b1 is 532nm narrow-band filter；5th arrowband filter 505b1 is that 607nm is narrow
Band filter lens；6th arrowband filter 506b1 is 660nm narrow-band filter.
First polarization spectro crystal 401b, the second polarization spectro crystal 402b: Main Function is corresponding to echo optical signal
The polarized light signal of wave band carries out examining polarization manipulation, and total echo-signal is divided into horizontal polarization and two components of vertical polarization.
Convex lens: the convex lens of little focal length, Main Function is that the optical signal after being filtered by narrow band pass filter is focused, with
Just the photodetector at lens rear more effectively receives echo-signal.
Photomultiplier tube: the photomultiplier tube of end-window, selects corresponding according to the respective degrees of concrete received spectrum
Model.Main Function is located in the focal point of convex lens, is received back to wave optical signal, and converts optical signals to the signal of telecommunication.
The Dichroic Optical portion of the multi-wavelength laser radar system echoes signal light-dividing device that this utility model embodiment provides
The operation principle divided is as follows:
First the echo optical signal being changed into horizontal direction by completely reflecting mirror 20b is carried out light splitting by the first dichroscope 301b,
Wave band more than 520nm is transmitted, and the wave band less than 520nm is reflected；
The optical signal of the first dichroscope 301b reflecting part, through the second dichroscope 302b, will be greater than the signal of 365nm
Transmission, the signal less than 365nm reflects；The signal of the second dichroscope 302b reflection is again through the first polarization spectro crystal
After 401b, it is divided into two polarization direction signals of 355nm wave band horizontal and vertical, respectively by 355nm band narrowband filter
After by convex lens focus to photomultiplier tube；The signal of the second dichroscope 302b transmission is about the convex lens of 3cm through focal length
After focusing, the aperture on fine fiber adjusting mount is directed at the focal point after focusing on, allows optical signal enter optical fiber, through optical fiber light-guiding
After faint atmospheric fluorescence signal transmission is carried out light splitting detection to 32 passage grating spectrographs.
The optical signal of the first dichroscope 301b transmission continues to transmit to the 3rd dichroscope 303b, more than transmission 555nm
Wave band, reflection wave band including 555nm.
The signal of the 3rd dichroscope 303b reflecting part is divided into horizontal and vertical after the second polarization spectro crystal 402b
The polarization component in direction, is then passed through after 532nm band narrowband filter by convex lens focus to photomultiplier tube；
The optical signal of the 3rd dichroscope 303b transmissive portion, after the 4th dichroscope 304b, the ripple of more than transmission 635nm
Section, reflection wave band including 635nm.Transmissive portion after 660nm band narrowband filter by convex lens focus to photoelectricity
Multiplier tube；Reflecting part after 607nm band narrowband filter by convex lens focus to photomultiplier tube；
To sum up described in spectroscopic step, completing 355nm wave band vertically and horizontally polarization signal, 532nm wave band is vertically and horizontally
Polarization signal, the Raman scattering signal of 607nm and 660nm and the light splitting detection of 32 passage air fluorescent signals.
As can be seen here, the multi-wavelength laser radar system echoes signal light-dividing device that this utility model embodiment provides, tool
Have the following advantages:
1, compactedness: make whole laser radar system structure compacter；
2, sealing: be prevented effectively from and cause the impact on echo-signal of other veiling glare because box body tightness is the best；
3, motility: bigger decreases because mobile observation needs the time readjusting Dichroic Optical path to become with economy
This.
In flow chart or at this, any process described otherwise above or method description are construed as, and expression includes
One or more is for realizing the module of code, fragment or the portion of the executable instruction of the step of specific logical function or process
Divide, and the scope of preferred implementation of the present utility model includes other realization, wherein can not be by shown or discussion
Order, by basic mode simultaneously or perform function including according to involved function in the opposite order, this should be by this
The embodiment person of ordinary skill in the field of utility model is understood.
Those skilled in the art are appreciated that and realize all or part of step that above-described embodiment method is carried
Suddenly the program that can be by completes to instruct relevant hardware, and described program can be stored in a kind of computer-readable storage medium
In matter, this program upon execution, including one or a combination set of the step of embodiment of the method.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State and be not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can be
Any one or more embodiments or example combine in an appropriate manner.
Above embodiment is only to be described preferred implementation of the present utility model, not to of the present utility model
Scope is defined, and on the premise of without departing from this utility model design spirit, this area ordinary skill technical staff is to this reality
The various deformation made by novel technical scheme and improvement, all should fall into the protection that claims of the present utility model determine
In the range of.
Claims (3)
1. a multi-wavelength laser radar system echoes signal light-dividing device, it is characterised in that including:
Shell；
Optical element fixed mount in the enclosure is set；
And it is arranged on the optical element on described optical element fixed mount；
Wherein, described optical element fixed mount includes:
Completely reflecting mirror fixed mount, is used for fixing completely reflecting mirror, and it is vertical that described completely reflecting mirror is configured to receive telescope
The echo-signal of direction transmission is changed into horizontal direction transmission；
First dichroscope fixed mount, is used for fixing the first dichroscope, and described first dichroscope is configured to described completely reflecting mirror
The echo-signal of transmission carries out the first reflection and the first transmission；
Second dichroscope fixed mount, is used for fixing the second dichroscope, and described second dichroscope is configured to described one or two color
Mirror carries out the echo-signal of the first reflection and carries out the second reflection and the second transmission；
First polarization spectro crystal fixed mount, is used for fixing the first polarization spectro crystal, and described first polarization spectro crystal is joined
It is set to the echo-signal of described second dichroscope the second reflection is carried out polarization manipulation, described second dichroscope second is reflected
Echo-signal is divided into horizontal polarization echo-signal and vertical polarization echo-signal；
First arrowband filter, lens, photomultiplier transit tube fixing device, for fix successively the first arrowband filter, the first lens and
First photomultiplier tube, described first arrowband filter is configured to filter the vertical polarization of described first polarization spectro crystal injection
Echo-signal, it is allowed to the optical signal of first band passes through, described first lens are configured to filter described first arrowband filter
Optical signal be focused, the first photomultiplier tube, for receive described first lens injection focusing after optical signal, and will
Optical signal after described focusing is converted to the signal of telecommunication and exports；
Second arrowband filter, lens, photomultiplier transit tube fixing device, for fix successively the second arrowband filter, the second lens and
Second photomultiplier tube, described second arrowband filter is configured to filter the horizontal polarization of described first polarization spectro crystal injection
Echo-signal, it is allowed to the optical signal of second band passes through, described second lens are configured to filter described second arrowband filter
Optical signal be focused, the second photomultiplier tube, for receive described second lens injection focusing after optical signal, and will
Optical signal after described focusing is converted to the signal of telecommunication and exports；
3rd dichroscope fixed mount, is used for fixing the 3rd dichroscope, and described 3rd dichroscope is configured to described one or two color
The echo-signal of mirror the first transmission carries out the 3rd reflection and the 3rd transmission；
Second polarization spectro crystal fixed mount, is used for fixing the second polarization spectro crystal, and described second polarization spectro crystal is joined
It is set to the echo-signal of described 3rd dichroscope the 3rd reflection be carried out polarization manipulation, by described 3rd dichroscope the 3rd reflection
Echo-signal is divided into horizontal polarization echo-signal and vertical polarization echo-signal；
3rd arrowband filter, lens, photomultiplier transit tube fixing device, for fix successively the 3rd arrowband filter, the 3rd lens and
3rd photomultiplier tube, described 3rd arrowband filter is configured to filter the vertical polarization of described second polarization spectro crystal injection
Echo-signal, it is allowed to the optical signal of the 3rd wave band passes through, described 3rd lens are configured to filter described 3rd arrowband filter
Optical signal be focused, the 3rd photomultiplier tube, for receive described 3rd lens injection focusing after optical signal, and will
Optical signal after described focusing is converted to the signal of telecommunication and exports；
4th arrowband filter, lens, photomultiplier transit tube fixing device, for fix successively the 4th arrowband filter, the 4th lens and
4th photomultiplier tube, described 4th arrowband filter is configured to filter the horizontal polarization of described second polarization spectro crystal injection
Echo-signal, it is allowed to the optical signal of the 4th wave band passes through, described 4th lens are configured to filter described 4th arrowband filter
Optical signal be focused, the 4th photomultiplier tube, for receive described 4th lens injection focusing after optical signal, and will
Optical signal after described focusing is converted to the signal of telecommunication and exports；
4th dichroscope fixed mount, is used for fixing the 4th dichroscope, and described 4th dichroscope is configured to described three or two color
The echo-signal of mirror the 3rd transmission carries out the 4th reflection and the 4th transmission；
5th arrowband filter, lens, photomultiplier transit tube fixing device, for fix successively the 5th arrowband filter, the 5th lens and
5th photomultiplier tube, described 5th arrowband filter is configured to filter the echo-signal of described 4th dichroscope the 4th reflection,
The optical signal allowing the 5th wave band passes through, and the optical signal that described 5th lens are configured to described 5th arrowband filter filters enters
Line focusing, the 5th photomultiplier tube, the optical signal after the focusing receiving described 5th lens injection, and by after described focusing
Optical signal be converted to the signal of telecommunication and export；
6th arrowband filter, lens, photomultiplier transit tube fixing device, for fix successively the 6th arrowband filter, the 6th lens and
6th photomultiplier tube, described 6th arrowband filter is configured to filter the echo-signal of described 4th dichroscope the 4th transmission,
The optical signal allowing the 6th wave band passes through, and the optical signal that described 6th lens are configured to described 6th arrowband filter filters enters
Line focusing, the 6th photomultiplier tube, the optical signal after the focusing receiving described 6th lens injection, and by after described focusing
Optical signal be converted to the signal of telecommunication and export；
7th lens fixed mount, is used for fixing the 7th lens, and described 7th lens are configured to described second dichroscope second
The echo-signal of transmission is focused；
Fine fiber adjusting mount, for being adjusted optical fiber, passes through optical fiber by the echo-signal after described 7th lens focus
Export；
Wherein, described shell includes:
First circular hole, for carrying out printing opacity to described completely reflecting mirror；
Second circular hole, for drawing described optical fiber.
Device the most according to claim 1, it is characterised in that also include:
Fast door fastening device, is used for fixing shutter, and described shutter is used for completely cutting off high light and enters described optical fiber；
3rd circular hole, for by described first photomultiplier tube, described second photomultiplier tube, described 3rd photomultiplier tube,
The data wire of described 4th photomultiplier tube, described 5th photomultiplier tube and described 6th photomultiplier tube output is drawn.
Device the most according to claim 1 and 2, it is characterised in that
Described first arrowband filter and described second arrowband filter are 355nm narrow-band filter；
Described 3rd arrowband filter and described 4th arrowband filter are 532nm narrow-band filter；
Described 5th arrowband filter is 607nm narrow-band filter；
Described 6th arrowband filter is 660nm narrow-band filter.
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| CN201620579089.6U CN205787109U (en) | 2016-06-15 | 2016-06-15 | A kind of multi-wavelength laser radar system echoes signal light-dividing device |
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| CN201620579089.6U CN205787109U (en) | 2016-06-15 | 2016-06-15 | A kind of multi-wavelength laser radar system echoes signal light-dividing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974393A (en) * | 2016-06-15 | 2016-09-28 | 兰州大学 | Echo signal splitting device of multi-wavelength laser radar system |
| CN107064908A (en) * | 2017-04-25 | 2017-08-18 | 北方民族大学 | A kind of multi-wavelength polarizes Raman lidar beam splitting system |
-
2016
- 2016-06-15 CN CN201620579089.6U patent/CN205787109U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974393A (en) * | 2016-06-15 | 2016-09-28 | 兰州大学 | Echo signal splitting device of multi-wavelength laser radar system |
| CN107064908A (en) * | 2017-04-25 | 2017-08-18 | 北方民族大学 | A kind of multi-wavelength polarizes Raman lidar beam splitting system |
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