CN209727786U - A kind of measuring device and system - Google Patents
A kind of measuring device and system Download PDFInfo
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- CN209727786U CN209727786U CN201920298161.1U CN201920298161U CN209727786U CN 209727786 U CN209727786 U CN 209727786U CN 201920298161 U CN201920298161 U CN 201920298161U CN 209727786 U CN209727786 U CN 209727786U
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Abstract
This application provides a kind of measuring device and system, which includes first light source transmitter, gives the first modulator for generating the first light beam, and by the first beam emissions；Second light source transmitter gives the first modulator for generating the second light beam, and by the second beam emissions, and the wavelength of the first light beam is different from the wavelength of the second light beam；Mixed light beam for the first light beam and the second light beam to be merged into mixed light beam, and is transmitted to flow field test section by the first modulator；Mixed light beam is dispersed into the first light beam and the second light beam for receiving the mixed light beam after the test section of flow field by the second modulator, so that the first light beam injects camera by first edge of a knife, the second light beam injects video camera by second edge of a knife；Camera, for forming the shadow image of flow field test section according to the first light beam；Video camera, for forming the schlieren image of flow field test section according to the second light beam.
Description
Technical field
This application involves measurement technical field of imaging, relate generally to a kind of measuring device and system.
Background technique
Schlieren method and shadowing method are the important optics display means of fluid display field, the displayable refractive index of schlieren method
The inhomogeneities of first derivative, the inhomogeneities of the displayable refractive index second dervative of shadowing method, schlieren method be suitable for shooting in
High sensitivity, the process of slight change, and shadow graph is adapted to the display jumpy such as turbulent flow.
It can be simultaneously to high sensitivity, slight change and process jumpy however, there is presently no a kind of devices
It is preferably acquired and is shown.
Utility model content
The application's is designed to provide a kind of measuring device and system, for solve in the prior art can not be simultaneously to spirit
The problem of sensitivity height, slight change and process jumpy are preferably acquired and are shown.
To achieve the goals above, it is as follows that this application provides following technical schemes:
First aspect: this application provides a kind of measuring device, described device includes first light source transmitter, second light source
Transmitter, the first modulator, the second modulator, first edge of a knife, second edge of a knife, camera and video camera；The first light source hair
Emitter gives first modulator for generating the first light beam, and by first beam emissions；The second light source transmitting
Device, for generate the second light beam, and will second beam emissions give first modulator, the wavelength of first light beam and
The wavelength of second light beam is different；First modulator, for first light beam and the second light beam to be merged into mixed light beam,
And the mixed light beam is transmitted to flow field test section；Second modulator, for receiving after the flow field test section
The mixed light beam, the mixed light beam is dispersed into first light beam and the second light after the flow field test section
Beam, so that first light beam after the flow field test section injects the camera by first edge of a knife, by institute
Second light beam after stating flow field test section injects the video camera by second edge of a knife；The camera is used for basis
First light beam after the flow field test section forms the shadow image of the flow field test section；The video camera is used
In the schlieren image for forming the flow field test section according to second light beam after the flow field test section.
The device of above scheme design, using the first adjuster and the second adjuster, so that two kinds of measurement methods pass through together
One optical path works without interfering with each other, and realizes schlieren and shade synchro measure, the analysis efficiency of subsequent stream field test section image
It is higher.
In the optional embodiment of first aspect, first modulator includes the first filming narrowband reflection mirror, and second
Modulator includes the second plated film narrowband reflection mirror；The first filming narrowband reflection mirror is used for first light beam and second
Light beam is merged into mixed light beam；The second plated film narrowband reflection mirror, for being dispersed into the mixed light beam by the stream
First light beam and the second light beam after the test section of field.
The light of different wave length can be merged and be separated, made by the device of above scheme design, plated film narrowband reflection mirror
The light beam of the light beam and shadow test that must carry out schlieren trial forms same optical path and is transmitted, and separates at receiving end, so that
Two kinds of measurement method work are without interfering with each other.
In the optional embodiment of first aspect, first modulator further includes the first reflecting mirror, and described second adjusts
Device processed further includes the second reflecting mirror；First reflecting mirror, for receiving the mixing of the first filming narrowband reflection mirror transmission
Light beam, and the mixed light beam is reflected to and is formed parallel mixed light beam, so that parallel mixed light beam passes through the flow field
Test section；Second reflecting mirror, for receiving the parallel mixed light beam by the flow field test section, and by the mixing
Light beam reflection converges to the second plated film narrowband reflection mirror.
In the optional embodiment of first aspect, first modulator further includes third reflecting mirror, and described second adjusts
Device processed further includes the 4th reflecting mirror；The third reflecting mirror, the light beam for merging the first filming narrowband reflection mirror are anti-
It is mapped to first reflecting mirror；4th reflecting mirror, for reflecting second reflecting mirror and the light beam converged is reflected into
The second plated film narrowband reflection mirror.
In the optional embodiment of first aspect, first modulator further includes the first convex lens, and described second adjusts
Device processed further includes the second convex lens；First convex lens, for receiving the mixing of the first filming narrowband reflection mirror transmission
Light beam, and by mixed light beam refraction at parallel mixed light beam, so that parallel mixed light beam is tested by the flow field
Section；Second convex lens, for receiving the parallel mixed light beam by the flow field test section, and by the mixed light beam
Converge to the second plated film narrowband reflection mirror.
In the optional embodiment of first aspect, described device further includes optical filter, and the optical filter is arranged described
At the camera lens of video camera, for filtering extra laser.
The device of above scheme design increases optical filter and prevents and treats interference of the extra laser to camera system.
Second aspect: the application provides a kind of measuring system, the system comprises controller and as first aspect is any can
Select the measuring device in embodiment, the controller respectively with the first light source transmitter, second light source transmitter,
Camera and video camera connection；The controller, for controlling the first light source transmitter, second light source transmitter, camera
And video camera synchronous working.
The system of above scheme design, using the first adjuster and the second adjuster, so that two kinds of measurement methods pass through together
One optical path works without interfering with each other, and realizes schlieren and shade synchro measure, the analysis efficiency of subsequent stream field test section image
It is higher, accelerate the flow of research of staff's stream field test section.
In the optional embodiment of second aspect, the controller and the first light source transmitter, second light source are sent out
The connection type of emitter, camera and video camera is electrical connection or communication connection.
In the optional embodiment of second aspect, the system also includes computer, the computer respectively with it is described
Controller, camera and video camera connection；The computer is received and stored for sending control instruction to the controller
The schlieren image that the shadow image and the video camera that the camera uploads upload.
In the optional embodiment of second aspect, the connection type of the computer and the camera and video camera is
USB connection.
The device of above scheme design, the matching of camera and video camera and remote computer is realized by the connection type of USB.
Other feature and advantage of the application will be illustrated in subsequent specification, also, partly be become from specification
It is clear that being understood and implementing the embodiment of the present application.The purpose of the application and other advantages can be by written
Specifically noted structure is achieved and obtained in specification, claims and attached drawing.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the application
Example, for those of ordinary skill in the art, what is do not made the creative labor.
Under the premise of, it is also possible to obtain other drawings based on these drawings.By shown in attached drawing, the application above-mentioned and its
Its purpose, feature and advantage will be more clear.Identical appended drawing reference indicates identical part in all the attached drawings.Not deliberately
It is scaled by actual size equal proportion and draws attached drawing, it is preferred that emphasis is the purport of the application is shown.
Fig. 1 is the measuring device first structure figure that the application first embodiment provides；
Fig. 2 is the second structure chart of measuring device that the application first embodiment provides；
Fig. 3 is the measuring device transmitting terminal structure chart that the application first embodiment provides；
Fig. 4 is the measuring device receiving end structure chart that the application first embodiment provides；
Fig. 5 is the measuring device third structure chart that the application first embodiment provides；
Fig. 6 is the measuring system overall structure figure that the application second embodiment provides.
Icon: 1- transmitting terminal；The receiving end 2-；10- first light source transmitter；20- second light source transmitter；30- first is adjusted
Device processed；301- the first filming narrowband reflection mirror；The first reflecting mirror of 302-；303- third reflecting mirror；The first convex lens of 304-；40-
Second modulator；401- the second plated film narrowband reflection mirror；The second reflecting mirror of 402-；The 4th reflecting mirror of 403-；The second convex lens of 404-
Mirror；First edge of a knife of 50-；Second edge of a knife of 60-；70- camera；80- video camera；101- controller；102- computer；90- filters
Piece.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application embodiment clearer, implement below in conjunction with the application
The technical solution in the application embodiment is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is a part of embodiment of the application, rather than whole embodiments.Based on the embodiment in the application, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the application
The range of protection.Therefore, the detailed description of the presently filed embodiment provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the present application of protection is sought, but is merely representative of the selected embodiment of the application.Based on the embodiment in the application,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this
Apply for the range of protection.
In the description of the present application, it is to be understood that term " center ", " length ", " width ", " thickness ", "upper",
The orientation or positional relationship of the instructions such as "lower", "front", "rear", "left", "right", "inner", "outside" is orientation based on the figure
Or positional relationship, it is merely for convenience of description the application and simplifies description, rather than the equipment or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can be expressed
Or implicitly include one or more of the features.In the description of the present application, the meaning of " plurality " is two or two
More than, unless otherwise specifically defined.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase
Even, can also indirectly connected through an intermediary, the interaction that can be connection or two elements inside two elements is closed
System.For the ordinary skill in the art, above-mentioned term in this application specific can be understood as the case may be
Meaning.
In this application unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
First embodiment
As shown in Figure 1, the application provides a kind of measuring device, which includes first light source transmitter 10, second light source
Transmitter 20, the first modulator 30, the second modulator 40, first edge of a knife 50, second edge of a knife 60, camera 70 and video camera 80.
First light source transmitter 10 gives the first modulator 30 for generating the first light beam, and by the first beam emissions.
Second light source transmitter 20, for generate the second light beam, and by the second beam emissions give the first modulator 30, first
The wavelength of light beam is different from the wavelength of the second light beam.
First modulator 30 for the first light beam and the second light beam to be merged into mixed light beam, and mixed light beam is transmitted
To flow field test section.
Second modulator 40, for receiving the mixed light beam after the test section of flow field, by mixed light beam be dispersed by
The first light beam and the second light beam after the test section of flow field, so that the first light beam after the test section of flow field passes through first edge of a knife 50
Camera 70 is injected, the second light beam after the test section of flow field injects video camera 80 by second edge of a knife 60.
Camera 70, for forming the shadow image of flow field test section according to the first light beam.
Video camera 80, for forming the schlieren image of flow field test section according to the second light beam.
For above scheme, what needs to be explained here is that, after obtaining schlieren image and shadow image, meter can be passed through
Calculation machine is further analyzed schlieren image and shadow image.
By above-mentioned described, the light beam mixed light beam that the first light beam and the second light beam are merged by the first modulator 30 can be
Two light beams are simply merged according to the wavelength difference of the first light beam and the second light beam, for example, the wavelength of the second light beam
Can be in the wave-length coverage by light in the first modulator 30, the wavelength of the first light beam, which is in the first modulator 30, can pass through light
Except wave-length coverage, then the second light beam can be transmitted directly by the first modulator 30, the first light beam is incident on the
It will form reflection on one modulator 30, the optical path that the first light beam of modulation forms reflection keeps it just same with the optical path of the second light beam
Mixed light beam can be formed after one optical path.
Similarly, mixed light beam is dispersed into the first light beam and the second light beam by the second modulator 40, can also be for according to the first light
What the wavelength difference of beam and the second light beam separated two light beams.
As long as in addition, can be realized the mode of this scheme all in protection scope of this programme etc, the position of optical device
Put the protection scope that this programme is not limited to type.
The device of above scheme design, using the first modulator 30 and the second modulator 40, so that two kinds of measurement methods are logical
Same optical path work is crossed without interfering with each other, realizes schlieren and shade synchro measure, the analysis of subsequent stream field test section image
It is more efficient, accelerate the flow of research of staff's stream field test section.
In the optional embodiment of first aspect, first light source transmitter 10 can be laser emitter, second light source hair
Emitter 20 can be ordinary light source transmitter, such as light emitting diode etc., camera 70 can be CCD high speed camera.
The laser and light emitting diode light wave for generating different wave length, are merged and are separated by modulator；In addition laser
Transmitter transmitting laser after the test section of flow field with CCD high speed camera cooperate, thus by flow test section to be measured at
As obtaining the image of transient state shade in CCD high speed camera.Traditional stration technique that achieved a solution of transient state shadow image is deposited
In regular hour and space integral effect, three-dimensional, high frequency fluidal texture is difficult in stration technique clearly to be disclosed, for
A series of the problem of complex flow structure of real concern can not show or can only obscure display during aerodynamic investigations.
In the optional embodiment of first aspect, the first modulator 30 include the first filming narrowband reflection mirror 301, second
Modulator 40 includes the second plated film narrowband reflection mirror 401.
The first filming narrowband reflection mirror 301, for the first light beam and the second light beam to be merged into mixed light beam.
Second plated film narrowband reflection mirror 401, for mixed light beam to be dispersed into the first light beam and the second light beam.
It include the second plated film narrowband reflection in the second modulator when including the first filming narrowband reflection mirror in the first modulator
When mirror, the laser emitter that generation wavelength is 532nm laser, the selection of second light source transmitter is may be selected in first light source transmitter
The light emitting diode of conventional wavelengths 700nm may be selected, the conventional light of 700nm can pass through the first filming narrowband reflection mirror and the second plating
Film narrowband reflection mirror；The laser of 532nm cannot penetrate the first filming narrowband reflection mirror and the second plated film narrowband reflection mirror, can plate
It is reflected on film narrowband reflection mirror, the position of laser emitter and light emitting diode is 90 ° of presentation of placement as shown in the figure,
The first light beam and the second light beam can be made to be mixed into same light beam in this way.
In addition, include in the first modulator is not only plated film narrowband reflection mirror, it can also be only plated film narrowband piece etc.
It can be realized the device or device for merging separation light beam according to different wave length.
The light of different wave length can be merged and be separated, made by the device of above scheme design, plated film narrowband reflection mirror
The light beam of the light beam and shadow test that must carry out schlieren trial forms same optical path and is transmitted, and separates at receiving end, so that
The image of schlieren and shade is not interfere with each other.
In the optional embodiment of first aspect, as shown in Fig. 2, the equipment before formation mixed light beam can be summarized as
The edge of a knife and image forming apparatus can be summarized as receiving end 2 by transmitting terminal 1；Wherein, transmitting terminal 1 and the specific structure of receiving end 2 point
Not as shown in Fig. 3 and Fig. 4, the first modulator 30 further includes the first reflecting mirror 302, and the second modulator 40 further includes the second reflection
Mirror 402.
First reflecting mirror 302, for receiving the mixed light beam of the transmission of the first filming narrowband reflection mirror 301, and by mixed light
Beam reflects and is formed parallel mixed light beam, so that parallel mixed light beam is by flow field test section.
Second reflecting mirror 402 for receiving the parallel mixed light beam by flow field test section, and mixed light beam is reflected
Converge to the second plated film narrowband reflection mirror 401.
For above-mentioned described, what needs to be explained here is that, the first reflecting mirror 302 and the second reflecting mirror 402 are played and will be mixed
The effect that light beam is transmitted, by mixed light beam formed directional light after transmission and reflection is to flow field test section again so that flow test
Section is more clear in subsequent imaging；In addition, the light that the first reflecting mirror 302 can be realized after light is reflected and reflected is
Directional light, then the first reflecting mirror 302 can be planar concave mirror；Second reflecting mirror 402, which can be played, to be reflected light and is converged
Poly- effect, then the second reflecting mirror 402 can be concave mirror.
In the optional embodiment of first aspect, as shown in Figure 3 and Figure 4, the first modulator 30 further includes third reflection
Mirror 303, the second modulator 40 further include the 4th reflecting mirror 403.
Third reflecting mirror 303, for the combined light beam of the first filming narrowband reflection mirror 301 to be reflected into the first reflecting mirror
302。
4th reflecting mirror 403, it is anti-that the light beam for reflecting and converging the second reflecting mirror 402 is reflected into the second plated film narrowband
Penetrate mirror 401.
For above-mentioned described, it is to be understood that the setting of third reflecting mirror 303 is reflected in the first filming narrowband reflection mirror 301 and first
Between mirror 302, it is used for transmission the mixed light beam of the outgoing of the first filming narrowband reflection mirror 301, and the mixed light beam of outgoing is reflected
It has a certain degree, mixed light beam when reaching the first reflecting mirror 302 is that have certain angle in this way, and first is anti-
That penetrates that mirror 302 can be more easier reflects to form mixed light beam parallel mixed light beam.
In addition, the 4th reflecting mirror 403 can be at an appropriate angle also for the light for allowing subsequent second reflecting mirror 402 to converge
It is transferred on the second plated film narrowband reflection mirror 401, the first light beam and the second light beam is finally made accurately to inject camera 70 respectively
In video camera 80.
It can be seen from the above, third reflecting mirror 303 and the 4th reflecting mirror 403 play the role of being provided to so that debugging more
Convenience.
In the optional embodiment of first aspect, the first modulator 30 further includes the first convex lens 304, the second modulator
40 further include the second convex lens 404.
First convex lens 304, for receiving the mixed light beam of the transmission of the first filming narrowband reflection mirror 301, and by mixed light
Beam is reflected at parallel mixed light beam, so that parallel mixed light beam is by flow field test section.
Second convex lens 404 for receiving the parallel mixed light beam by flow field test section, and mixed light beam is converged
To the second plated film narrowband reflection mirror 401.
It is already described above that directional light is formed by reflecting by planar concave mirror for above scheme, in this implementation
Directional light and converged light can be reflected into mode by convex lens；Its specific implementation is as follows:
As shown in figure 5, the mixed light beam that the first filming narrowband reflection mirror 301 is emitted is flat from the focus of the first convex lens 304
Incident first convex lens 304 on face, while guaranteeing the mixed light beam being emitted from the first filming narrowband reflection mirror 301, it is from first
The focal point of convex lens 304 is emitted on the first convex lens, and the first convex lens 304 carries out refraction to mixed light beam and formed in parallel
Mixed light beam, and parallel mixed light beam is made to pass through flow field test section；Second convex lens 404 and the setting of the first convex lens 304
On the same line, and its focal plane is consistent；In this way, be incident on the second convex lens 404 by flow field test section
Parallel mixed light beam, it will be able to be converged on the second plated film narrowband reflection mirror 401 by the second convex lens 404.
In the optional embodiment of first aspect, which further includes optical filter 90, and video camera is arranged in optical filter
At camera lens, for filtering extra laser.
For above scheme, what needs to be explained here is that, since laser intensity is very big, after reflection, has and a small amount of swash
Light can the second plated film narrowband reflection mirror enters video camera 80 together with the second light beam in other words through the second modulator, and then right
Video camera forms schlieren image and impacts, and therefore, it is necessary to increase an optical filter 90, the optical filter before camera lens
90 can be negative filter, further filter out the first extra light beam.In addition, the wavelength-filtered of the optical filter and the first light beam
Wavelength is consistent.
Second embodiment
As shown in fig. 6, the application provides a kind of measuring system, which includes appointing in controller 101 and first embodiment
Anticipate embodiment in measuring device, controller 101 respectively with first light source transmitter 10, second light source transmitter 20, camera
70 and video camera 80 connect；
Controller 101, for controlling first light source transmitter 10, second light source transmitter 20, camera 70 and video camera
80 synchronous workings.
For above scheme, what needs to be explained here is that, controller gives camera after being connected to high trigger signal
70,20 trigger signal of video camera 80, first light source transmitter 10 and second light source transmitter enables it all with identical frequency work
It is 10ns, the single frames of camera 70 and video camera 80 between when the light out of work, first light source transmitter 10 and second light source transmitter 20
Time for exposure presets within the scope of 40us-1s, and then the light one that goes out of light source emitter was scheduled in each time for exposure, once
It triggers high level signal to stop, all devices all stop working；Controller can also be used in simple image processing function, satisfaction pair
The character adding function of acquiring image, preset characters signal is saved simultaneously with image, is provided for the batch processing of later image
Mark.
In addition, controller 101 and first light source transmitter 10, second light source transmitter 20, camera 70 and video camera 80
Connection type can be the mode electrically connected.
In the optional embodiment of second aspect, which further includes computer 102, computer 102 respectively with control
Device 101, camera 70 and video camera 80 connect；
Computer 102 receives and stores the shadow image of the upload of camera 70 for sending control instruction to controller 101
The schlieren image uploaded with video camera 80.
Computer 102 can carry out the processing analysis of schlieren and shadow image, the labyrinth of experimental flow field be obtained, by flow field
Labyrinth shown and analyzed.
In addition, computer 102 is that USB is connect with the connection type of camera 70 and video camera 80.
Due to camera 70, total interface itself is not opened to the outside world, so being interconnected the two with USB data line, to adjust
With the related shooting instruction of digital camera, while using controller 101 as the buffer of camera.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain
Lid is within the scope of protection of this application.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.
Claims (10)
1. a kind of measuring device, which is characterized in that described device includes first light source transmitter, second light source transmitter, first
Modulator, the second modulator, first edge of a knife, second edge of a knife, camera and video camera；
The first light source transmitter gives first modulator for generating the first light beam, and by first beam emissions；
The second light source transmitter gives first modulator for generating the second light beam, and by second beam emissions,
The wavelength of first light beam is different from the wavelength of the second light beam；
First modulator, for first light beam and the second light beam to be merged into mixed light beam, and by the mixed light
Beam is transmitted to flow field test section；
Second modulator, for receiving the mixed light beam after the flow field test section, by the mixed light beam
It is dispersed into first light beam and the second light beam after the flow field test section, so that after the flow field test section
First light beam injects the camera by first edge of a knife, and second light beam after the flow field test section is logical
It crosses second edge of a knife and injects the video camera；
The camera, for forming the yin of the flow field test section according to first light beam after the flow field test section
Shadow image；
The video camera, for forming the flow field test section according to second light beam after the flow field test section
Schlieren image.
2. device according to claim 1, which is characterized in that first modulator includes the first filming narrowband reflection mirror,
Second modulator includes the second plated film narrowband reflection mirror；
The first filming narrowband reflection mirror, for first light beam and the second light beam to be merged into mixed light beam；
The second plated film narrowband reflection mirror, described in being dispersed into the mixed light beam after the flow field test section
First light beam and the second light beam.
3. device according to claim 2, which is characterized in that first modulator further includes the first reflecting mirror, and described
Two modulators further include the second reflecting mirror；
First reflecting mirror, for receiving the mixed light beam of the first filming narrowband reflection mirror transmission, and by the mixing
Light beam reflects and is formed parallel mixed light beam, so that parallel mixed light beam passes through the flow field test section；
Second reflecting mirror, for receiving the parallel mixed light beam by the flow field test section, and by the mixed light
Beam reflection converges to the second plated film narrowband reflection mirror.
4. device according to claim 3, which is characterized in that first modulator further includes third reflecting mirror, and described
Two modulators further include the 4th reflecting mirror；
The third reflecting mirror, the light beam for merging the first filming narrowband reflection mirror are reflected into first reflection
Mirror；
4th reflecting mirror, the light beam for reflecting and converging second reflecting mirror are reflected into second plated film narrowband
Reflecting mirror.
5. device according to claim 2, which is characterized in that first modulator further includes the first convex lens, and described
Two modulators further include the second convex lens；
First convex lens, for receiving the mixed light beam of the first filming narrowband reflection mirror transmission, and by the mixing
Light beam refraction is at parallel mixed light beam, so that parallel mixed light beam passes through the flow field test section；
Second convex lens, for receiving the parallel mixed light beam by the flow field test section, and by the mixed light
Beam convergence is to the second plated film narrowband reflection mirror.
6. device according to claim 1, which is characterized in that described device further includes optical filter, and the optical filter setting exists
At the camera lens of the video camera, for filtering extra laser.
7. a kind of measuring system, which is characterized in that the system comprises controller and as described in any one of claim 1-6
Measuring device, the controller connect with the first light source transmitter, second light source transmitter, camera and video camera respectively
It connects；
The controller, for controlling the synchronous work of the first light source transmitter, second light source transmitter, camera and video camera
Make.
8. system according to claim 7, which is characterized in that the controller and the first light source transmitter, the second light
The connection type of source transmitter, camera and video camera is electrical connection or communication connection.
9. system according to claim 7, which is characterized in that the system also includes computer, the computer respectively with
The controller, camera and video camera connection；
The computer receives and stores the shadow image that the camera uploads for sending control instruction to the controller
The schlieren image uploaded with the video camera.
10. system according to claim 9, which is characterized in that the connection of the computer and the camera and video camera
Mode is USB connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920298161.1U CN209727786U (en) | 2019-03-08 | 2019-03-08 | A kind of measuring device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920298161.1U CN209727786U (en) | 2019-03-08 | 2019-03-08 | A kind of measuring device and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870453A (en) * | 2019-03-08 | 2019-06-11 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of measuring device and system |
| CN111077046A (en) * | 2019-12-19 | 2020-04-28 | 哈尔滨工程大学 | Schlieren porous spray test system suitable for ultrahigh back pressure |
-
2019
- 2019-03-08 CN CN201920298161.1U patent/CN209727786U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870453A (en) * | 2019-03-08 | 2019-06-11 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of measuring device and system |
| CN109870453B (en) * | 2019-03-08 | 2024-03-01 | 中国空气动力研究与发展中心高速空气动力研究所 | Measuring device and system |
| CN111077046A (en) * | 2019-12-19 | 2020-04-28 | 哈尔滨工程大学 | Schlieren porous spray test system suitable for ultrahigh back pressure |
| CN111077046B (en) * | 2019-12-19 | 2022-11-18 | 哈尔滨工程大学 | Schlieren porous spray test system suitable for ultrahigh back pressure |
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