CN211878839U - Simple gas convection display instrument based on schlieren photography technology - Google Patents
Simple gas convection display instrument based on schlieren photography technology Download PDFInfo
- Publication number
- CN211878839U CN211878839U CN202020897405.0U CN202020897405U CN211878839U CN 211878839 U CN211878839 U CN 211878839U CN 202020897405 U CN202020897405 U CN 202020897405U CN 211878839 U CN211878839 U CN 211878839U
- Authority
- CN
- China
- Prior art keywords
- fine
- platform
- slide rail
- tuning
- along
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a simple and easy gas convection display appearance based on schlieren photography technique, including the light source subassembly that has a point, the concave mirror, adjust the support, the light selects the subassembly, the single opposition machine, load-bearing platform, backup pad and display, be provided with the guide rail that extends along the x axle in the backup pad, first slider and second slider, be provided with the first fine setting subassembly that is used for fixing and adjusts the light and select the subassembly along the z axle on the first slider, be provided with the second fine setting subassembly that is used for fixing and adjusts load-bearing platform along the z axle on the second slider, be provided with the third fine setting subassembly that is used for fixing and adjusts the single opposition machine along the y axle on the load-bearing platform and be used for fixing and the fourth fine setting subassembly along y axle alignment point light source. So set up, light path and adjustment mechanism are retrencied based on the principle of schlieren instrument to this scheme, make its low cost and ease for use stronger, and whole set of equipment module setting, simple structure, and only need simple fine setting after the adjustment level can reach the demonstration effect.
Description
Technical Field
The application relates to the technical field of gas convection, in particular to a simple gas convection display instrument based on schlieren photography.
Background
Based on the light refraction principle, the invisible airflow flowing state can be demonstrated through the demonstration instrument. The principle is that due to different gas densities, the refractive indexes of the gas flow are different, the light in the camera presents image display with different light and shade/different colors (different contrasts) through the light convergence effect of the concave mirror and the selective permeation at the focus, and accordingly the gas flow state invisible to naked eyes is displayed.
The technology has long been used in the field of aviation for observing the separation of air flow on the surface of an airfoil and for high speed photography/photography of an aircraft flying at transonic speeds. Even today, aircraft designs often utilize schlieren technology to observe shock waves. The schlieren instrument is matched with the miniature wind tunnel, so that the state of airflow bypassing the wing section, the airplane and the blades can be visualized conveniently, and the schlieren instrument is compared and analyzed with a calculation or simulation result. In addition, the heat convection state of the conditions of heat dissipation and the like can be well demonstrated.
Since the principle of the device reflects the density change, the device can be modified into a device for demonstrating the density change of the liquid, so that the state of the liquid thermal convection is visualized. In a word, this demonstration appearance is the basic device of density change, and the cooperation different front end demonstration devices both can become the visualization with invisible flow. However, most of the conventional schlieren demonstration instruments are applied to the field of fluid mechanics research such as large wind tunnels, and belong to one of high-precision optical instruments, so that the schlieren demonstration instrument has the disadvantages of larger volume, difficult adjustment and extremely high cost for ensuring the precision.
Therefore, how to solve the problems of large volume, difficult adjustment and high cost of the existing schlieren demonstration instrument is a key technical problem to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the related art at least to a certain extent, the present application aims to provide a simple gas convection display instrument based on schlieren photography technology, which can solve the problems of large volume, difficult adjustment and high cost of the existing schlieren demonstration instrument.
The application provides a simple and easy gas convection display instrument based on schlieren photography technique, including the point light source subassembly that is used for sending light, the concave mirror that is used for reflection light, be used for fixing and adjusting the regulation support, light selection subassembly, single-lens reflex camera, load-bearing platform, backup pad and with the display of single-lens reflex camera communicative connection, be provided with along the guide rail of x axle extension, with first slider and the second slider of guide rail slidable connection on the backup pad, be provided with on the first slider and be used for fixing and adjust along the z axle the first fine setting subassembly of light selection subassembly, be provided with on the second slider and be used for fixing and adjust along the z axle the second fine setting subassembly of load-bearing platform, be provided with on the load-bearing platform and be used for fixing and adjust along the y axle the third fine setting subassembly of single-lens reflex camera and be used for fixing and adjust along the y axle the fourth fine setting subassembly of point light source subassembly, and the point light source component is arranged close to the light ray selection component relative to the single lens reflex.
Preferably, the light selection assembly comprises a filter and a filter support for supporting the filter, and the filter support is connected to the first fine adjustment assembly.
Preferably, the optical filter support comprises a circular bearing part and a connecting part extending along the radial direction of the bearing part, the optical filter is arranged at the center of the bearing part, and the connecting part is connected to the first fine tuning assembly.
Preferably, the first fine adjustment assembly includes a first slide rail extending along the z-axis, a first fine adjustment platform slidably connected to the first slide rail, and a first fine adjustment knob for driving the first fine adjustment platform to move along the first slide rail, the first slide rail is disposed on the first slider, and the light selection assembly is disposed on the first fine adjustment platform.
Preferably, the second fine adjustment assembly comprises a base fixed on the second slider and a lifting platform connected with the bearing platform, a cavity extending along the z axis is formed in the upper end face of the base, and the lifting platform is embedded in the cavity and driven by the second fine adjustment knob to move along the z axis.
Preferably, the third fine adjustment assembly includes a third slide rail extending along the y axis, a third fine adjustment platform slidably connected to the third slide rail, and a third fine adjustment knob for driving the third fine adjustment platform to move along the third slide rail, the third slide rail is disposed on the bearing platform, and the slr camera is disposed on the third fine adjustment platform.
Preferably, the fourth fine-tuning assembly includes a fourth slide rail extending along the y-axis, a fourth fine-tuning platform slidably connected to the fourth slide rail, and a fourth fine-tuning knob for driving the fourth fine-tuning platform to move along the fourth slide rail, the fourth slide rail is disposed on the bearing platform, and the point light source assembly is disposed on the fourth fine-tuning platform.
Preferably, the third slide rail and the fourth slide rail are located on the same straight line and are integrally formed.
Preferably, the bottom of the adjusting bracket is provided with a plurality of adjusting legs, and the adjusting legs are in threaded fit with the adjusting bracket.
Preferably, the number of the adjusting legs is three, and a connecting line of two of the adjusting legs is parallel to the concave mirror.
The technical scheme provided by the application can comprise the following beneficial effects:
the simple gas convection display instrument based on schlieren photography technology consists of a concave mirror, a point light source, a light ray selection sheet, a single-lens reflex camera, a display, a demonstration device and the like. The point light source and the light selection sheet are located at the focal length twice of the concave mirror, the area close to the concave mirror is an imaging area, the air density change of the part enables light to be deflected, so that gas convection at the position can be captured by the single-phase inverter and displayed on the display, and then demonstration of the gas convection condition is achieved.
When using, it is fixed to adjust support and backup pad, and the position is corresponding, adjust the fourth fine setting subassembly, so that the light that point light source subassembly sent shines on the concave mirror, adjust first fine setting subassembly, second fine setting subassembly and third fine setting subassembly, make in the imaging area of single opposition machine, the concave mirror position is in the light that image center and concave mirror sent by point light source subassembly covers, the accurate focus that is located of light selection subassembly simultaneously, at this moment, can show that the gas convection in the imaging area flows.
So set up, light path and adjustment mechanism are retrencied based on the principle of schlieren instrument to this scheme, make its low cost and ease for use stronger, and whole set of equipment module setting, simple structure, and only need simple fine setting after the adjustment level can reach the demonstration effect.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a simplified gas convection display mounting arrangement based on schlieren photography technology, according to some exemplary embodiments;
fig. 2 is a schematic diagram of a simplified gas convection display based on schlieren photography technology, shown in accordance with some example embodiments.
In the figure: 1. adjusting the bracket; 2. a concave mirror; 3. adjusting the support legs; 4. a support plate; 5. a first slider; 6. a second slider; 7. a guide rail; 8. a second fine tuning assembly; 9. a first fine tuning assembly; 10. a filter holder; 11. an optical filter; 12. a single lens reflex camera; 13. a load-bearing platform; 14. a third fine tuning assembly; 15. a fourth fine tuning component; 16. a point light source assembly; 17. a presentation device; 18. a display.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus or methods consistent with aspects of the present application.
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.
Referring to fig. 1-2, the present embodiment provides a simple gas convection display instrument based on schlieren photography technology, which includes a point light source assembly 16, a concave mirror 2, an adjusting bracket 1, a light selecting assembly, a single lens reflex 12, a carrying platform 13, a supporting plate 4, and a display 18, and of course, may also include a demonstration apparatus 17, wherein the point light source assembly 16 is used for emitting light, specifically, the point light source assembly 16 adopts an LED light emitting form and has a brightness adjusting function, the diameter of a light point is less than 2mm, and the obtaining mode of a point light source is not limited; the concave mirror 2 is used for reflecting light rays emitted by the point light source assembly 16, the concave mirror 2 is fixed on the adjusting support 1 so as to be convenient to place and fix, and the position of the concave mirror 2 can be adjusted by adjusting the adjusting support 1.
The light selection assembly is used for selecting the light reflected by the concave mirror 2, and specifically, a light filter 11, a polarizing film or a blade can be adopted, so that the light reflected by the concave mirror 2 enters the single lens reflex 12 after passing through the light selection assembly; light selection subassembly and load-bearing platform 13 are fixed in backup pad 4, and single lens reflex camera 12 and point light source subassembly 16 are fixed on load-bearing platform 13, drive single lens reflex camera 12 and 16 displacements of point light source subassembly through load-bearing platform 13 to carry out position control, single lens reflex camera 12 is connected with display 18 in addition, and then presents the information of catching by showing.
It should be noted that, the simple gas convection display instrument based on the schlieren photography technology is composed of a reflection end adjusting mechanism and an imaging end adjusting mechanism, the reflection end adjusting mechanism comprises a concave mirror 2 and an adjusting support 1 which are connected into a whole, the imaging end adjusting mechanism comprises a point light source assembly 16, a light selecting assembly, a single lens reflex camera 12, a bearing platform 13, a support plate 4 and a display 18, and the point light source assembly is used for adjusting and displaying gas convection imaging.
A guide rail 7, a first slide block 5 and a second slide block 6 are arranged on the support plate 4, wherein the guide rail 7 extends along the x-axis direction, and the first slide block 5 and the second slide block 6 are slidably connected with the guide rail 7 and can slide and displace along the x-axis direction, specifically, can displace along the direction close to or far from the concave mirror 2; and, be provided with first fine setting subassembly 9 on the first slider 5, the light selection subassembly is established on first fine setting subassembly 9, can drive the light selection subassembly through adjusting first fine setting subassembly 9 and displace along the z axle direction, and then adjust the position of light selection subassembly twice focus, be provided with second fine setting subassembly 8 on the second slider 6, load-bearing platform 13 sets up on second fine setting subassembly 8, can drive load-bearing platform 13 through adjusting second fine setting subassembly 8 and displace along the z axle direction, and then drive single lens reflex camera 12 and point light source subassembly 16 and position along the z axle direction, so that the camera lens center of single lens reflex camera 12, the center of light selection subassembly and concave mirror 2 is in same straight line, here, can fix a position by laser calibration device.
A third fine adjustment component 14 and a fourth fine adjustment component 15 are arranged on the bearing platform 13, wherein the single lens reflex 12 is arranged on the third fine adjustment component 14, and the single lens reflex 12 can be driven to move along the y-axis direction by adjusting the third fine adjustment component 14 so as to obtain the light reflected by the concave lens; the point light source assembly 16 is arranged on the fourth fine adjustment assembly 15, and the point light source assembly 16 can be driven to move along the y-axis direction by adjusting the fourth fine adjustment assembly 15 so as to ensure that the light emitted by the point light source assembly 16 irradiates on the concave mirror 2.
Because point light source and light select the piece all to be in the position of twice focus, and single anti-camera 12 is located the one side that concave mirror 2 was kept away from to the light select piece, and point light source subassembly 16 is close to the light and selects the subassembly setting for single anti-camera 12, like this, when adjusting load-bearing platform 13 along the x-axis, the coincidence of point light source and light select piece, and single anti-camera 12 is in the rear of light select piece to in order to obtain the formation of image.
It should be noted that the x, y, and z axes described herein correspond to a three-dimensional coordinate system, where the directions of the x axis and the y axis may be horizontal and perpendicular to each other, the direction of the z axis may be vertical and perpendicular to the x axis and the y axis, respectively, and the lens center of the single lens reflex camera 12, the light selecting assembly, and the center of the concave mirror 2 are located on the same straight line, and the straight line is parallel to the direction of the x axis.
The principle of the simple gas convection display instrument based on the schlieren photography technology is shown in fig. 2, and the simple gas convection display instrument comprises a concave mirror 2, a point light source, a light selection sheet, a single lens reflex 12, a display 18, a demonstration device 17 and the like. The demonstration device 17 can be of various types, such as a miniature wind tunnel, a propeller airflow demonstration device 17 and other various mechanisms, and the parts are not described in detail; the light selection sheet may take various forms such as a filter 11 or a polarizing plate, and functions as light selection; the single lens reflex 12 has no specific requirements, and the effect is better when the common single lens reflex 12 is matched with a telephoto lens; the display 18 is also not particularly required and is used for demonstration purposes only for image implementation. The point light source and the light selection sheet are positioned at the focal length twice of the concave mirror 2, the area close to the concave mirror 2 is an imaging area S, the air density change of the area causes the light to deflect, so that the gas convection at the position can be captured by the single lens reflex 12 and displayed on the display 18, and further the demonstration of the gas convection condition is realized.
When the single lens reflex camera is used, the adjusting support 1 and the support plate 4 are fixed and are corresponding in position, the fourth fine adjustment assembly 15 is adjusted to enable light rays emitted by the point light source assembly 16 to irradiate the concave mirror 2, the first fine adjustment assembly 9, the second fine adjustment assembly 8 and the third fine adjustment assembly 14 are adjusted to enable the concave mirror 2 to be located in the image center and the concave mirror 2 to be covered by the light rays emitted by the point light source assembly 16 in the imaging area S of the single lens reflex camera 12, and meanwhile, the light ray selection assembly is accurately located at the focus. At this time, the convection flow of the gas in the imaging region S can be displayed.
So set up, light path and adjustment mechanism are retrencied based on the principle of schlieren instrument to this scheme, make its low cost and ease for use stronger, and whole set of equipment module setting, simple structure, and only need simple fine setting after the adjustment level can reach the demonstration effect.
In this embodiment, the light selecting assembly includes a light filter 11 and a light filter support 10, wherein the light filter 11 extends along the y-axis direction, and two ends of the light filter 11 are fixed on the light filter support 10, so that light can pass through the light filter 11 and cannot be shielded by the light filter support 10. Moreover, the optical filter support 10 is arranged on the first fine tuning assembly 9, and the optical filter support 10 is driven to move through the first fine tuning assembly 9, so as to drive the optical filter 11 to move, without contacting the optical filter 11, thereby avoiding pollution to the optical filter 11.
Further, the filter holder 10 includes a supporting portion and a connecting portion, the supporting portion is annular, the filter 11 is disposed at the center of the supporting portion, and the filter 11 is conveniently adjusted through the supporting portion. Moreover, the connecting portion is bar-shaped and extends along the radial direction of the bearing portion, specifically, the filter support 10 is arranged in a shape of a magnifying glass, and the connecting portion is arranged on the first fine adjustment assembly 9 so as to conveniently adjust the filter 11.
In some embodiments, the first fine adjustment assembly 9 includes a first slide rail, a first fine adjustment platform, and a first fine adjustment knob, where the first slide rail extends along the z-axis, the first fine adjustment platform is connected to the first slide rail and can slide along the first slide rail, and the first fine adjustment knob is used to drive the first fine adjustment platform to move along the first slide rail, specifically, the first fine adjustment knob can be driven by a lead screw nut structure or a rack and pinion structure, which is not specifically described here, and the first fine adjustment knob is any structure capable of implementing the above functions. Moreover, the first slide rail is arranged on the first slide block 5, specifically, an L-shaped plate is arranged on the first slide block 5, one side of the L-shaped plate is fixed with the first slide block 5, the other side of the L-shaped plate is provided with the first slide rail, and the first fine adjustment platform is provided with a slide groove matched with the first slide rail so as to ensure the connection stability of the first slide rail and the first fine adjustment platform; the light ray selection assembly is arranged on the first fine adjustment platform and moves along the direction of the z axis along with the first fine adjustment platform, so that the vertical adjustment of the light ray selection assembly is realized, and the structure is simple and convenient to adjust.
Of course, the second fine-tuning assembly 8 includes a second slide rail, a second fine-tuning platform and a second fine-tuning knob, wherein the second slide rail extends along the z-axis, the second fine-tuning platform is connected to the second slide rail and can slide along the second slide rail, the second fine-tuning knob is used for driving the second fine-tuning platform to move along the second slide rail, specifically, the second fine-tuning knob can be driven by a screw nut structure or a rack-and-pinion structure, which is not specifically described here, and the second fine-tuning knob is any structure capable of implementing the above functions. Moreover, the second slide rail is arranged on the second slide block 6, specifically, an L-shaped plate is arranged on the second slide block 6, one side of the L-shaped plate is fixed with the second slide block 6, the other side of the L-shaped plate is provided with the second slide rail, and the second fine adjustment platform is provided with a slide groove matched with the second slide rail so as to ensure the connection stability of the second slide rail and the second fine adjustment platform; the bearing platform 13 is arranged on the second fine adjustment platform and moves along the z-axis direction along with the second fine adjustment platform, and therefore the vertical adjustment of the light ray selection assembly is achieved.
The second fine tuning platform comprises a base, a lifting platform and a second fine tuning knob, wherein the base is fixed above the second sliding block 6, a concave cavity is formed in the upper end face of the base, the concave cavity is of a columnar structure and extends along the z-axis direction, the bearing platform 13 is arranged above the lifting platform, the lower portion of the lifting platform is matched with the concave cavity, so that the lifting platform is embedded into the concave cavity and can slide along the concave cavity, and the bearing platform 13 is driven by the lifting platform to move along the z-axis direction, so that the bearing platform 13 is in contact with the upper end face of the lifting platform, the stress area is increased, larger supporting force can be provided, and the stability of the single lens reflex camera 12 and the light source assembly 16 is ensured; and the second fine tuning knob is arranged on the base and can drive the lifting platform to move along the z-axis direction, specifically, the second fine tuning knob can be driven by a screw nut structure or a rack-and-pinion structure, which is not specifically described here, and the second fine tuning knob is any structure capable of realizing the above functions.
In some preferred embodiments, the third fine adjustment assembly 14 includes a third slide rail, a third fine adjustment platform, and a third fine adjustment knob, where the third slide rail extends along the y-axis, the third fine adjustment platform is connected to the third slide rail and can slide along the third slide rail, and the third fine adjustment knob is used to drive the third fine adjustment platform to move along the third slide rail, specifically, the third fine adjustment knob can be driven by a lead screw nut structure or a rack and pinion structure, and this is not specifically described here, and the third fine adjustment knob is any structure capable of implementing the above functions. Moreover, the third slide rail is arranged on the upper end surface of the bearing platform 13, and specifically, the lower end surface of the third fine tuning platform is provided with a slide groove matched with the third slide rail, so as to ensure the stability of connection between the third slide rail and the third fine tuning platform; the single lens reflex 12 is arranged on the third fine adjustment platform and moves along the y-axis direction along with the third fine adjustment platform, so that the horizontal adjustment of the single lens reflex 12 is realized, and by the arrangement, the horizontal movement of the single lens reflex 12 can be accurately adjusted through the knob, the operation is simple and convenient, and the cost is saved.
The fourth fine adjustment assembly 15 includes a fourth slide rail, a fourth fine adjustment platform and a fourth fine adjustment knob, wherein the fourth slide rail extends along the y-axis, the fourth fine adjustment platform is connected to the fourth slide rail and can slide along the fourth slide rail, the fourth fine adjustment knob is used for driving the fourth fine adjustment platform to move along the fourth slide rail, specifically, the fourth fine adjustment knob can be driven by a lead screw nut structure and can also be driven by a rack-and-pinion structure, which is not specifically described here, and the fourth fine adjustment knob is any structure capable of implementing the above functions. Moreover, the fourth slide rail is arranged on the upper end surface of the bearing platform 13, and specifically, the lower end surface of the fourth fine tuning platform is provided with a slide groove matched with the fourth slide rail, so as to ensure the stability of connection between the fourth slide rail and the fourth fine tuning platform; point light source subassembly 16 establishes on fourth fine setting platform and along with fourth fine setting platform along y axle direction displacement, and then realizes point light source subassembly 16's horizontal adjustment, so set up, through the horizontal displacement that the knob can accurate regulation point light source subassembly 16, easy and simple to handle, and practice thrift the cost.
Furthermore, the third slide rail and the fourth slide rail are positioned on the same straight line and are integrally formed, the third slide rail and the fourth slide rail are set to be of the same structure, and the grooves formed in the third fine adjustment platform and the fourth fine adjustment platform are matched with each other, so that one slide rail can be shared, the processing is facilitated, and the adjustment range can be enlarged.
In some embodiments, the bottom of the adjusting support 1 is provided with a plurality of adjusting legs 3, each adjusting leg 3 is in threaded fit with the adjusting support 1 and is rotatably connected to the bottom of the adjusting support 1, and the level or pitch angle of the adjusting support 1 can be controlled by controlling the screwing-in and screwing-out position of the adjusting support 1, so that the structure is simple and convenient, and the adjustment is convenient.
Wherein, it is provided with threely to adjust landing leg 3, like this, and the triangular supports can guarantee to adjust the balanced stability of support 1, and wherein two connection of adjusting landing leg 3 are parallel with concave mirror 2, like this, adjusts another one and adjusts landing leg 3 and can adjust the every single move angle of concave mirror 2, and then is convenient for adjust concave mirror 2, light selection subassembly and single lens reflex 12 to same straight line on, is favorable to promoting the precision.
It should be noted that the terms "first," "second," "third," "fourth," and the like, as used herein, are not intended to limit the specific order, but merely to distinguish one element or function from another. The expressions "upper", "lower", "left", "right", "horizontal" and "vertical" are all used when the simple gas convection display apparatus based on the schlieren photography technology is in the state shown in fig. 1.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A simple gas convection display instrument based on schlieren photography technology is characterized by comprising a point light source component (16) for emitting light, a concave mirror (2) for reflecting the light, an adjusting bracket (1) for fixing and adjusting the concave mirror (2), a light selection component, a single-lens reflex camera (12), a bearing platform (13), a support plate (4) and a display (18) which is in communication connection with the single-lens reflex camera (12), wherein a guide rail (7) extending along an x axis, a first sliding block (5) and a second sliding block (6) which are slidably connected with the guide rail (7) are arranged on the support plate (4), a first fine adjustment component (9) for fixing and adjusting the light selection component along a z axis is arranged on the first sliding block (5), a second fine adjustment component (8) for fixing and adjusting the bearing platform (13) along the z axis is arranged on the second sliding block (6), the bearing platform (13) is provided with a third fine adjustment assembly (14) used for fixing and adjusting the single lens reflex (12) along the y axis and a fourth fine adjustment assembly (15) used for fixing and adjusting the point light source assembly (16) along the y axis, and the point light source assembly (16) is close to the light ray selection assembly relative to the single lens reflex (12).
2. The simplified gas convection display instrument based on schlieren photography as claimed in claim 1, wherein the light selection module comprises a filter (11) and a filter holder (10) for holding the filter (11), the filter holder (10) being connected to the first fine tuning module (9).
3. The simplified gas convection display instrument based on schlieren photography technique as claimed in claim 2, wherein the filter holder (10) comprises a circular ring-shaped bearing portion and a connecting portion extending along the radial direction of the bearing portion, the filter (11) is disposed at the center of the bearing portion, and the connecting portion is connected to the first fine tuning assembly (9).
4. The simplified gas convection display instrument based on schlieren photography of claim 1, wherein the first fine-tuning assembly (9) comprises a first slide rail extending along the z-axis, a first fine-tuning platform slidably connected to the first slide rail, and a first fine-tuning knob for driving the first fine-tuning platform to move along the first slide rail, the first slide rail is disposed on the first slide block (5), and the light selection assembly is disposed on the first fine-tuning platform.
5. The simplified gas convection display instrument based on schlieren photography as claimed in claim 1, wherein the second fine tuning assembly (8) comprises a base fixed on the second slide block (6) and a lifting platform connected to the carrying platform (13), the upper end surface of the base is provided with a cavity extending along the z-axis, and the lifting platform is embedded in the cavity and moves along the z-axis under the driving of the second fine tuning knob.
6. The simplified gas convection display instrument based on schlieren photography of claim 1, wherein the third fine-tuning assembly (14) comprises a third slide rail extending along the y-axis, a third fine-tuning platform slidably connected to the third slide rail, and a third fine-tuning knob for driving the third fine-tuning platform to move along the third slide rail, the third slide rail is disposed on the carrying platform (13), and the single lens reflex camera (12) is disposed on the third fine-tuning platform.
7. The simplified gas convection display instrument based on schlieren photography of claim 6, wherein the fourth fine-tuning assembly (15) comprises a fourth slide rail extending along the y-axis, a fourth fine-tuning platform slidably connected to the fourth slide rail, and a fourth fine-tuning knob for driving the fourth fine-tuning platform to move along the fourth slide rail, the fourth slide rail is disposed on the supporting platform (13), and the point light source assembly (16) is disposed on the fourth fine-tuning platform.
8. The simplified schlieren camera technology-based gas convection display instrument as claimed in claim 7, wherein said third slide rail and said fourth slide rail are integrally formed on the same straight line.
9. Simple gas convection display instrument based on schlieren photography technique as claimed in claim 1 wherein the bottom of the adjusting bracket (1) is provided with a plurality of adjusting legs (3), the adjusting legs (3) being screw-fitted with the adjusting bracket (1).
10. Simple gas convection display instrument based on schlieren photography technique as claimed in claim 9 wherein there are three adjustment legs (3) and wherein the line connecting two of the adjustment legs (3) is parallel to the concave mirror (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020897405.0U CN211878839U (en) | 2020-05-25 | 2020-05-25 | Simple gas convection display instrument based on schlieren photography technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020897405.0U CN211878839U (en) | 2020-05-25 | 2020-05-25 | Simple gas convection display instrument based on schlieren photography technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211878839U true CN211878839U (en) | 2020-11-06 |
Family
ID=73234555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020897405.0U Active CN211878839U (en) | 2020-05-25 | 2020-05-25 | Simple gas convection display instrument based on schlieren photography technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211878839U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112525905A (en) * | 2020-11-23 | 2021-03-19 | 西安建筑科技大学 | Background schlieren imaging based polluted air flow intensity identification and emission control method and system |
| CN115016089A (en) * | 2022-08-09 | 2022-09-06 | 中国空气动力研究与发展中心高速空气动力研究所 | Rapid light path alignment method for split building block reflective schlieren instrument |
-
2020
- 2020-05-25 CN CN202020897405.0U patent/CN211878839U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112525905A (en) * | 2020-11-23 | 2021-03-19 | 西安建筑科技大学 | Background schlieren imaging based polluted air flow intensity identification and emission control method and system |
| CN112525905B (en) * | 2020-11-23 | 2022-09-30 | 西安建筑科技大学 | Background schlieren imaging based polluted air flow intensity identification and emission control method and system |
| CN115016089A (en) * | 2022-08-09 | 2022-09-06 | 中国空气动力研究与发展中心高速空气动力研究所 | Rapid light path alignment method for split building block reflective schlieren instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211878839U (en) | Simple gas convection display instrument based on schlieren photography technology | |
| CN102183221B (en) | Measurement method for verticality of optical axis of microscope system | |
| CN109822891A (en) | A kind of high-precision large format stereoprojection 3D printing system and its Method of printing | |
| SE439998B (en) | OPTICAL COLLIMATOR DEVICE, SPECIFICALLY INTENDED FOR AIRPLANE INDICATORS | |
| CN209858860U (en) | Head-mounted display equipment | |
| US2536718A (en) | Variable power optical system for training devices, microscopes, telescopes, and thelike | |
| US4793687A (en) | Collimated optical visual simulation system | |
| CN109387131A (en) | A kind of head-up display eye box measuring device and measuring method | |
| CN113899525B (en) | Compressible Reynolds stress measurement system based on combined schlieren technology | |
| CN205679898U (en) | The optical axis adjustable device of a kind of video camera and optical axis adjusting system | |
| US2085498A (en) | Device and method for aerial survey | |
| CN108168462B (en) | A kind of method and system for the measurement of scope of freedom shape sub-aperture stitching | |
| CN109998471A (en) | A kind of OCT system that reference arm is fixed | |
| US3910704A (en) | Compensating device for sighting instruments | |
| CN105716628B (en) | The continuously adjustable static star simulator of magnitude continuous transformation sky background | |
| CN210243967U (en) | Augmented reality AR glasses that can focus | |
| CN209280971U (en) | A kind of polarization maintaining optical fibre is to shaft device | |
| CN208400371U (en) | A kind of teaching optics instrument | |
| CN202329547U (en) | Direct-irradiating type optical lever indicating device | |
| US2350151A (en) | Optical focusing system | |
| CN109827524B (en) | Light angle measuring device and light angle measuring method for light emitted by display screen | |
| CN209746278U (en) | Transmission type AR glasses device | |
| US3580660A (en) | Image-forming apparatus | |
| CN208333818U (en) | The glued detection device of turning angle prism on a kind of microscope lens barrel bottom plate | |
| CN208314331U (en) | Augmented reality shows optics module and augmented reality display system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |