CN106404336A - Vertical pneumatic optical effect analog device - Google Patents
Vertical pneumatic optical effect analog device Download PDFInfo
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- CN106404336A CN106404336A CN201610876364.5A CN201610876364A CN106404336A CN 106404336 A CN106404336 A CN 106404336A CN 201610876364 A CN201610876364 A CN 201610876364A CN 106404336 A CN106404336 A CN 106404336A
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- Prior art keywords
- optical effect
- opening
- pneumatic optical
- tank body
- layer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
Abstract
The present invention provides a vertical pneumatic optical effect analog device, belonging to the pneumatic optical technology field. The device comprises a black body with an upward opening and a tank body with a downward opening and arranged at the upper portion of the black body, the opening of the black body and the opening of the tank body are connected through a telescoping structure, and the telescoping structure is internally provided with an iris aperture structure; the telescoping structure includes from inside to outside an inner layer extension tube, an insulating layer and an outer layer extension tube, the inner extension tube includes a non-extension end arranged at the middle portion and an extension tube connected with two ends of the non-extension end, and the iris aperture structure is installed on the non-extension end; and the iris aperture structure includes an annular ring, spindles uniformly distributed on the annular ring and arc-shaped metal blades rotating around the spindles, and the number of the spindles is the same as the number of the arc-shaped metal blades, and the number of the spindles at least have six. The vertical pneumatic optical effect analog device employs the feature of forming strong convection by using cold and hot gas to directly generate the airflow which generates the pneumatic optical effect so as to realize the purpose of direct analog of the pneumatic optical effect.
Description
Technical field
A kind of vertical pneumatic optical effect analog belongs to Pneumatic optical technical field.
Background technology
Aircraft in atmosphere high speed flight, due to its optical dome and between origin stream produce actual gas effect
Should, the interfering of SHOCK WAVE INDUCED boundary layer separation, no viscosity flow and boundary region, thus produce change because of current density, temperature
The complex flowfield that change, constituent change and gas molecule ionization etc. cause, this causes heat, heat to infrared imaging detection system
Radiation and image transmitting interference, cause target offset, shake, obscure, this effect is referred to as aero-optical effect.
Aero-optical effect brings adverse effect to infrared image terminal guidance, make target seeker to the detection of target, follow the tracks of with
Identification ability declines, and then affects terminal guidance precision.Due to flow field density change, change the original of the light propagated wherein
Path, produces deviation and phase place change, causes the skew causing image on imaging plane, obscures, and shakes and energy loss.As
Fruit can explore Pneumatic optical degeneration mechanism it becomes possible to correction Pneumatic optical degeneration image, reduces aberration, improves optical imagery matter
Amount.It can be seen that, exploring Pneumatic optical degeneration mechanism is to improve the committed step of picture quality.
Explore Pneumatic optical degeneration mechanism, need to simulate aero-optical effect.At present, a lot of aero-optical effect simulation dresses
Putting is all optical analog device, for example the patent of invention of Application No. 201410456264.8《Pneumatic light based on distorted image
Learn effect analog device》, and algorithm simulation, the such as patent of invention of Application No. 201310193486.0《A kind of simulation is pneumatic
The method and system of optical effect》, these analog or method all do not directly generate the air-flow producing aero-optical effect,
It is consequently belonging to indirect analog, and is not belonging to directly simulate, the therefore actual aero-optical effect of distance is also had any different.
Content of the invention
In order to solve the above problems, the invention discloses a kind of aero-optical effect analog, the utilization of this analog
Cold and hot gas forms the characteristic of strong convection, directly generates the air-flow producing aero-optical effect, realizes aero-optical effect straight
Connect the purpose of simulation.
The object of the present invention is achieved like this：
A kind of vertical pneumatic optical effect analog, including the black matrix of opening upwards, is arranged on black matrix upper opening downward
Tank body, is connected by stretching structure between the opening of black matrix and the opening of tank body, and described stretching structure is internally provided with iris light
Coil structures；
Described black matrix includes ceramic layer, intermediate layer, cooling layer and shell from inside to outside successively；Described intermediate layer middle setting has
Resistance wire, inwall is provided with temperature sensor, described cooling layer water-filling；
Described tank body top is provided with opening, and opening is provided with lid；
Described stretching structure includes internal layer telescoping tube, heat-insulation layer and outer layer telescoping tube, described internal layer telescoping tube from inside to outside successively
Including the non-telescoping end being arranged on centre and the telescoping tube composition being connected to non-god contracting end two ends, iris is installed at non-god contracting end
Iris diaphragm structure；
Described iris structure includes annular ring, on the annular rings equally distributed rotating shaft, the curved metal rotating around the shaft
Blade, described rotating shaft is identical with the quantity of curved metal blade, at least six.
Above-mentioned vertical pneumatic optical effect analog, also includes water tank and water pump, and described cooling layer top and bottom are each
There is one outlet, the water in water tank is pumped into cooling layer outlet at bottom by water pump, water is from cooling layer top exit reflow tank.
Above-mentioned vertical pneumatic optical effect analog, described lid is stove circle structure, including multiple diameters difference, successively phase
Set, section are the annular ring of hierarchic structure.
Above-mentioned vertical pneumatic optical effect analog, described tank body is stretching structure.
Above vertical pneumatic optical effect analog, also includes optical imaging system, described optical imaging system includes
Light source, pin hole, collimating lens, grating, object lens and imageing sensor；The light beam that light source sends, forms point source through needle passing hole, then
Form collimated light beam after collimating lens collimation, illuminate grating, described grating and imageing sensor are separately positioned on object lens
Object space and image space；Wherein, light source, pin hole, collimating lens and grating are arranged on inside black matrix, and imageing sensor is arranged in tank body
Portion, object lens are arranged on black matrix inside or tank interior.
Described grating can ratate 90 degrees in its place plane.
Beneficial effect：
Firstth, due to arranging by the way of black matrix is relative with tank body opening, strongly right therefore, it is possible to be formed using cold and hot gas
The characteristic of stream, directly generates the air-flow producing aero-optical effect, realizes the purpose that aero-optical effect is directly simulated；
Secondth, due to being connected by stretching structure between the opening of black matrix and the opening of tank body, the length of stretching structure, energy are adjusted
The convection current enough changing cold and hot gas is strong, and then changes gas turbulence parameter, therefore, it is possible to change aero-optical effect simulation effect
Really, so increase aero-optical effect analog of the present invention simulation context；
3rd, due to being provided with iris structure, by rotating curved metal blade, air-flow hole size, Jin Erneng are changed
The convection current enough changing cold and hot gas is strong, that is, change gas turbulence parameter, therefore, it is possible to change aero-optical effect simulation effect,
And then increase the simulation context of aero-optical effect analog of the present invention.
Brief description
Fig. 1 is the structural representation of vertical pneumatic optical effect analog of the present invention.
Fig. 2 is the structural representation of black matrix.
Fig. 3 is the structural representation of stretching structure.
Fig. 4 is the structural representation of iris structure.
Fig. 5 is the structural representation of black matrix in specific embodiment two.
Fig. 6 is the structural representation of lid.
Fig. 7 is the structural representation of optical imaging system in vertical pneumatic optical effect analog of the present invention.
In figure：1 black matrix, 11 ceramic layers, 12 intermediate layers, 13 cooling layers, 14 shells, 2 tank bodies, 3 stretching structures, 31 internal layers are stretched
The draw, 32 heat-insulation layers, 33 outer layer telescoping tubes, 4 iris structures, 41 annular rings, 42 rotating shafts, 43 curved metal blades, 5 lid, 6
Water tank, 7 water pumps, 8 optical imaging systems, 81 light sources, 82 pin holes, 83 collimating lens, 84 gratings, 85 object lens, 86 imageing sensors.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the invention is described in further detail.
Specific embodiment one
The vertical pneumatic optical effect analog of the present embodiment, structural representation is as shown in Figure 1.This vertical pneumatic optical effect
Analog includes the black matrix 1 of opening upwards, is arranged on the downward tank body 2 of black matrix 1 upper opening, the opening of black matrix 1 and tank body 2
Opening between connected by stretching structure 3, described stretching structure 3 is internally provided with iris structure 4；
Described black matrix 1 includes ceramic layer 11, intermediate layer 12, cooling layer 13 and shell 14 from inside to outside successively；Described intermediate layer
12 middle settings have resistance wire, and inwall is provided with temperature sensor, described cooling layer 13 water-filling；The structural representation of black matrix 1 is such as
Shown in Fig. 2；
Described tank body 2 top is provided with opening, and opening is provided with lid 5；
Described stretching structure 3 includes internal layer telescoping tube 31, heat-insulation layer 32 and outer layer telescoping tube 33, described internal layer from inside to outside successively
Telescoping tube 31 includes being arranged on the non-telescoping end of centre and the telescoping tube composition being connected to non-god contracting end two ends, on non-god contracting end
Iris structure 4 is installed；The structural representation of stretching structure 3 is as shown in Figure 3；
Described iris structure 4 includes annular ring 41, equally distributed rotating shaft 42 on annular ring 41,42 rotations around the shaft
Curved metal blade 43, described rotating shaft 42 is identical with the quantity of curved metal blade 43, at least six；Iris structure 4
Structural representation as shown in Figure 4.
Specific embodiment two
The vertical pneumatic optical effect analog of the present embodiment, on the basis of specific embodiment one, limits further and also wraps
Include water tank 6 and water pump 7, one outlet is respectively arranged at described cooling layer 13 top and bottom, and the water in water tank 6 is pumped into cooling by water pump 7
Layer 13 outlet at bottom, water from cooling layer 13 top exit reflow tank, as shown in Figure 5.
This structure design, using the slow heat conductivity of water, both achieved the insulation to ceramic layer 11 and intermediate layer 12 it is ensured that
The stability of the simulated aero-optical effect of aero-optical effect analog, achieves the cooling to shell 14 it is ensured that reality again
Test safety.
Specific embodiment three
The vertical pneumatic optical effect analog of the present embodiment, on the basis of specific embodiment one, limits described further
Lid 5 is stove circle structure, include that multiple diameters are different, be nested successively, section for hierarchic structure annular ring, as shown in fig. 6, Fig. 6
Show be that three annular rings are superimposed and superposition after stove circle structure schematic diagram.
This structure design, can realize the openings of sizes of adjustment lid 5 by adjusting the quantity of annular ring, and then not
On the premise of changing other structures, parameter and technical specification, change aero-optical effect simulation effect, and then increase gas of the present invention
The simulation context of dynamic optical effect analog.
Specific embodiment four
The vertical pneumatic optical effect analog of the present embodiment, on the basis of specific embodiment one, limits described further
Tank body 2 is stretching structure.
This structure design, can realize not changing other structures, parameter and technology by adjusting the length of tank body 2
On the premise of index, change aero-optical effect simulation effect, and then increase the mould of aero-optical effect analog of the present invention
Intend scope.
In specific embodiment three and specific embodiment four, by change lid 5 openings of sizes or change tank body 2 length Lai
Change aero-optical effect simulation effect, and then the simulation context of increase aero-optical effect analog of the present invention, it is to adopt
Air-flow carries out aero-optical effect and directly simulates the characteristic just having, and this characteristic does not only illustrate in the prior art, and
Also beyond the cognition of those skilled in the art.
Specific embodiment five
Above vertical pneumatic optical effect analog, also includes optical imaging system 8, described optical imaging system such as Fig. 7 institute
Show, including light source 81, pin hole 82, collimating lens 83, grating 84, object lens 85 and imageing sensor 86；The light beam that light source 81 sends,
Form point source through needle passing hole 82, then form collimated light beam after collimating lens 83 collimation, illuminate grating 84, described grating 84
It is separately positioned on object space and the image space of object lens 85 with imageing sensor 86；Wherein, light source 81, pin hole 82, collimating lens 83 and light
Grid 84 are arranged on inside black matrix 1, and imageing sensor 86 is arranged on inside tank body 2, and object lens 85 are arranged on black matrix 1 inside or tank body 2
Inside, in the present embodiment, object lens 85 are arranged on inside black matrix 1.
This structure design, can be monitored to Pneumatic optical simulation effect, the figure being obtained using imageing sensor 86
As entering the calculating of line raster 84 contrast decay, resistance wire is controlled according to result of calculation and adjusts the threshold value of temperature sensor, real
Existing whole system closed loop control, is conducive to improving the accuracy of aero-optical effect simulation.
Specific embodiment six
The vertical pneumatic optical effect analog of the present embodiment, on the basis of specific embodiment five, limits described further
Grating 84 can ratate 90 degrees in its place plane.
It has been investigated that, the direct analog form of aero-optical effect is carried out and using optical analog and algorithm mould using air-flow
The essential distinction intending indirect analog mode is, air-flow optical analog can in two-dimensional directional and algorithm simulation can control
Difference, such difference is carrying out cannot accurately controlling when aero-optical effect is directly simulated using air-flow, and this characteristic is not only
Do not illustrate in the prior art, and the cognition beyond those skilled in the art is it is therefore necessary to two-dimensional directional all
It is monitored.And this structure qualification of the present embodiment, it is capable of monitoring in the two-dimensional direction the contrast change of grating 84
Rule, is prevented effectively from single direction and realizes simulation, and other direction problem not up to standard, be conducive to improving aero-optical effect mould
The accuracy intended.
It should be noted that in the embodiment above, as long as reconcilable technical scheme can carry out permutation and combination, this
Skilled person can be possible to according to the mathematical knowledge limit of permutation and combination, and therefore, the present invention is no longer to permutation and combination
Technical scheme afterwards is illustrated one by one, but it is understood that presently disclosed for the technical scheme after permutation and combination.
Claims (6)
1. a kind of vertical pneumatic optical effect analog is it is characterised in that include the black matrix of opening upwards（1）, it is arranged on black
Body（1）The downward tank body of upper opening（2）, black matrix（1）Opening and tank body（2）Opening between pass through stretching structure（3）Even
Connect, described stretching structure（3）It is internally provided with iris structure（4）；
Described black matrix（1）Include ceramic layer from inside to outside successively（11）, intermediate layer（12）, cooling layer（13）And shell（14）；
Described intermediate layer（12）Middle setting has resistance wire, and inwall is provided with temperature sensor, described cooling layer（13）Water-filling；
Described tank body（2）Top is provided with opening, and opening is provided with lid（5）；
Described stretching structure（3）Include internal layer telescoping tube from inside to outside successively（31）, heat-insulation layer（32）With outer layer telescoping tube（33）,
Described internal layer telescoping tube（31）Form including the non-telescoping end being arranged on centre and the telescoping tube being connected to non-god contracting end two ends,
On non-god contracting end, iris structure is installed（4）；
Described iris structure（4）Including annular ring（41）, in annular ring（41）Upper equally distributed rotating shaft（42）, around the shaft
（42）The curved metal blade of rotation（43）, described rotating shaft（42）With curved metal blade（43）Quantity identical, at least six
Individual.
2. vertical pneumatic optical effect analog according to claim 1 is it is characterised in that also include water tank（6）With
Water pump（7）, described cooling layer（13）One outlet, water pump are respectively arranged at top and bottom（7）By water tank（6）In water pump into cooling layer
（13）Outlet at bottom, water is from cooling layer（13）Top exit reflow tank.
3. vertical pneumatic optical effect analog according to claim 1 is it is characterised in that described lid（5）For stove circle
Structure, including multiple diameters different, be nested successively, section is the annular ring of hierarchic structure.
4. vertical pneumatic optical effect analog according to claim 1 is it is characterised in that described tank body（2）For stretching
Shrinking structure.
5. the vertical pneumatic optical effect analog according to claim 1,2,3 or 4 is it is characterised in that also include light
Learn imaging system（8）, described optical imaging system（8）Including light source（81）, pin hole（82）, collimating lens（83）, grating（84）,
Object lens（85）And imageing sensor（86）；Light source（81）The light beam sending, through needle passing hole（82）Form point source, then through collimation
Lens（83）Form collimated light beam after collimation, illuminate grating（84）, described grating（84）With imageing sensor（86）It is respectively provided with
In object lens（85）Object space and image space；Wherein, light source（81）, pin hole（82）, collimating lens（83）And grating（84）It is arranged on black
Body（1）Inside, imageing sensor（86）It is arranged on tank body（2）Inside, object lens（85）It is arranged on black matrix（1）Inside or tank body（2）
Internal.
6. vertical pneumatic optical effect analog according to claim 5 is it is characterised in that described grating（84）Can
Ratate 90 degrees in its place plane.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810421641.2A CN108593242B (en) | 2016-10-08 | 2016-10-08 | Vertical pneumatic optical effect simulator |
| CN201610876364.5A CN106404336B (en) | 2016-10-08 | 2016-10-08 | A kind of vertical pneumatic optical effect simulator |
| CN201810421228.6A CN108827583B (en) | 2016-10-08 | 2016-10-08 | Vertical pneumatic optical effect simulation device |
| CN201810422332.7A CN108534979A (en) | 2016-10-08 | 2016-10-08 | Vertical turbulence effect simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610876364.5A CN106404336B (en) | 2016-10-08 | 2016-10-08 | A kind of vertical pneumatic optical effect simulator |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810421641.2A Division CN108593242B (en) | 2016-10-08 | 2016-10-08 | Vertical pneumatic optical effect simulator |
| CN201810421228.6A Division CN108827583B (en) | 2016-10-08 | 2016-10-08 | Vertical pneumatic optical effect simulation device |
| CN201810422332.7A Division CN108534979A (en) | 2016-10-08 | 2016-10-08 | Vertical turbulence effect simulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106404336A true CN106404336A (en) | 2017-02-15 |
| CN106404336B CN106404336B (en) | 2018-09-11 |
Family
ID=59228497
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810421228.6A Expired - Fee Related CN108827583B (en) | 2016-10-08 | 2016-10-08 | Vertical pneumatic optical effect simulation device |
| CN201610876364.5A Expired - Fee Related CN106404336B (en) | 2016-10-08 | 2016-10-08 | A kind of vertical pneumatic optical effect simulator |
| CN201810421641.2A Active CN108593242B (en) | 2016-10-08 | 2016-10-08 | Vertical pneumatic optical effect simulator |
| CN201810422332.7A Pending CN108534979A (en) | 2016-10-08 | 2016-10-08 | Vertical turbulence effect simulator |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810421228.6A Expired - Fee Related CN108827583B (en) | 2016-10-08 | 2016-10-08 | Vertical pneumatic optical effect simulation device |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810421641.2A Active CN108593242B (en) | 2016-10-08 | 2016-10-08 | Vertical pneumatic optical effect simulator |
| CN201810422332.7A Pending CN108534979A (en) | 2016-10-08 | 2016-10-08 | Vertical turbulence effect simulator |
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| CN (4) | CN108827583B (en) |
Cited By (1)
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| CN108072295A (en) * | 2017-12-06 | 2018-05-25 | 中国人民解放军63908部队 | A kind of interference free performance detection device, the method and system of laser guidance equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108534979A (en) | 2018-09-14 |
| CN108593242B (en) | 2019-11-15 |
| CN106404336B (en) | 2018-09-11 |
| CN108593242A (en) | 2018-09-28 |
| CN108827583A (en) | 2018-11-16 |
| CN108827583B (en) | 2019-12-20 |
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