CN206331707U - A kind of horizontal pneumatic optical effect analogue means - Google Patents
A kind of horizontal pneumatic optical effect analogue means Download PDFInfo
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- CN206331707U CN206331707U CN201621102748.3U CN201621102748U CN206331707U CN 206331707 U CN206331707 U CN 206331707U CN 201621102748 U CN201621102748 U CN 201621102748U CN 206331707 U CN206331707 U CN 206331707U
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Abstract
A kind of horizontal pneumatic optical effect analogue means, belongs to Pneumatic optical technical field；Black matrix and tank body that the aero-optical effect analogue means is set gradually including level, the opening of black matrix are relative with the opening of tank body, and black matrix is connected with tank body by attachment structure；The first air pump and the first air flue are additionally provided with inside black matrix, the first air flue is deep into attachment structure；The second air pump and the second air flue are additionally provided with tank interior, the second air flue is deep into attachment structure；In attachment structure, the second air flue is located above the first air flue, and the perforate of the second air flue is relative up and down with the perforate of the first air flue；The utility model aero-optical effect analogue means, using the characteristic of cold and hot gas formation strong convection, directly generates the air-flow for producing aero-optical effect, realizes the purpose that aero-optical effect is directly simulated.
Description
Technical field
A kind of horizontal pneumatic optical effect analogue means belongs to Pneumatic optical technical field.
Background technology
Aircraft is imitated in atmosphere high speed flight due to its optical dome and from actual gas is produced between origin stream
Should, SHOCK WAVE INDUCED boundary layer separation, interfering without viscosity flow and boundary layer, so as to produce because of current density change, temperature
Complex flowfield caused by change, constituent change and gas molecule ionization etc., 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, tracking with
Recognition capability declines, and then influences terminal guidance precision.Due to flow field density change, the original of the light propagated wherein is changed
Path, produces deviation and phase place change, causes the skew that image is caused on imaging plane, obscures, shake and energy loss.Such as
Fruit can explore Pneumatic optical degeneration mechanism, it becomes possible to correct Pneumatic optical degeneration image, reduce aberration, improve optical imagery matter
Amount.It can be seen that, it is to improve the committed step of picture quality to explore Pneumatic optical degeneration mechanism.
Pneumatic optical degeneration mechanism is explored, it is necessary to simulate aero-optical effect.At present, many aero-optical effect simulation dresses
It is all optical analog device to put, for example the patent of invention of Application No. 201410456264.8《Pneumatic light based on distorted image
Learn effect analog device》, and algorithm simulation, such as Application No. 201310193486.0 patent of invention《One kind simulation is pneumatic
The method and system of optical effect》, these analogue means or method all do not directly generate the air-flow for producing aero-optical effect,
Indirect analog is consequently belonging to, and is not belonging to directly simulation, therefore is also had any different apart from actual aero-optical effect.
The content of the invention
In order to solve the above problems, the invention discloses a kind of aero-optical effect analogue means, the analogue means is utilized
The characteristic of cold and hot gas formation strong convection, and by the help of air pump, the air-flow for producing aero-optical effect is directly generated, it is real
The purpose that existing aero-optical effect is directly simulated.
The object of the present invention is achieved like this：
A kind of horizontal pneumatic optical effect analogue means, including the black matrix and tank body that level is set gradually, the opening of black matrix
Relative with the opening of tank body, black matrix is connected with tank body by attachment structure；
Described black matrix includes ceramic layer, intermediate layer, cooling layer and shell successively from inside to outside；Set in the middle of the intermediate layer
Resistance wire is equipped with, inwall is provided with temperature sensor, the cooling layer water-filling；
It is provided with the top of the tank body in opening, opening and is provided with lid；
The first air pump is additionally provided with inside black matrix, the first air flue of the first air pump is connected, first air flue is deep into
In attachment structure, operative tip of first air flue in attachment structure is provided with multiple perforates；The diameter of perforate and perforate center
Distance to the first air pump is directly proportional；
The second air pump is additionally provided with tank interior, the second air flue of the second air pump is connected, second air flue is deep into
In attachment structure, member base end of second air flue in attachment structure is provided with multiple perforates；The diameter of perforate and perforate center
Distance to the first air pump is directly proportional；
In attachment structure, the second air flue is located above the first air flue, the perforate of the second air flue and the perforate of the first air flue
It is relative up and down.
Above-mentioned horizontal pneumatic optical effect analogue means, it is each at the top and bottom of the cooling layer also including water tank and water pump
There is an 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 horizontal pneumatic optical effect analogue means, the lid is stove circle structure, including multiple diameters are different, phase successively
Set, the annular ring that section is hierarchic structure.
Above-mentioned horizontal pneumatic optical effect analogue means, the tank body is stretching structure.
Above horizontal pneumatic optical effect analogue means, also including optical imaging system, the optical imaging system includes
Light source, pin hole, collimation lens, grating, object lens and imaging sensor；The light beam that light source is sent, through needle passing hole formation spot light, then
Collimated light beam is formed after collimation lens is collimated, grating is illuminated, the grating is separately positioned on object lens with imaging sensor
Object space and image space；Wherein, light source, pin hole, collimation lens and grating are arranged on inside black matrix, and imaging sensor is arranged in tank body
Portion, object lens are arranged on inside black matrix or tank interior.
The grating can be rotated by 90 ° where it in plane.
Beneficial effect：
Firstth, due to being set by the way of black matrix is relative with tank body opening, therefore, it is possible to be formed by force using cold and hot gas
The characteristic of strong convection current, directly generates the air-flow for producing aero-optical effect, realizes the purpose that aero-optical effect is directly simulated；
Secondth, due to also having the first air flue and the second air flue that are oppositely arranged in attachment structure, and the second air flue
Perforate is relative up and down with the perforate of the first air flue, therefore between the first air flue and the second air flue, additionally it is possible to strong convection is formed,
It is superimposed with black matrix and air-flow that tank body is produced, aero-optical effect simulation effect is further improved, is conducive to instrument miniaturization；
The diameter of three, the second air flue perforates is directly proportional to perforate center to the distance of the first air pump, the second air flue perforate
Diameter be directly proportional to perforate center to the distance of the first air pump, therefore the air-flow that each tapping is produced can be kept away than more uniform
Exempt from some tapping air-flow excessive or too small, the problem of causing analog distortion.
Brief description of the drawings
Fig. 1 is the structural representation of horizontal pneumatic optical effect analogue means of the present invention.
Fig. 2 is the structural representation of black matrix.
Fig. 3 is the structural representation of black matrix in specific embodiment two.
Fig. 4 is the structural representation of lid.
Fig. 5 is the structural representation of optical imaging system in horizontal pneumatic optical effect analogue means of the present invention.
In figure：1 black matrix, 11 ceramic layers, 12 intermediate layers, 13 cooling layers, 14 shells, 15 first air pumps, 16 first air flues, 2
Tank body, 21 second air pumps, 22 second air flues, 3 attachment structures, 5 lids, 6 water tanks, 7 water pumps, 8 optical imaging systems, 81 light sources, 82
Pin hole, 83 collimation lenses, 84 gratings, 85 object lens, 86 imaging sensors.
Embodiment
The specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings.
Specific embodiment one
The horizontal pneumatic optical effect analogue means of the present embodiment, structural representation is as shown in Figure 1.The horizontal pneumatic optics
Black matrix 1 and tank body 2 that effect analog device is set gradually including level, the opening of black matrix 1 are relative with the opening of tank body 2, black matrix 1
It is connected with tank body 2 by attachment structure 3；
Described black matrix 1 includes ceramic layer 11, intermediate layer 12, cooling layer 13 and shell 14 successively from inside to outside；In described
The middle setting of interbed 12 has resistance wire, and inwall is provided with temperature sensor, the water-filling of cooling layer 13；The structural representation of black matrix 1
Figure is as shown in Figure 2；
The top of tank body 2, which is provided with opening, opening, is provided with lid 5；
The first air pump 15 is additionally provided with inside black matrix 1, the first air flue 16 of the first air pump 15, first air flue is connected
16 are deep into attachment structure 3, and operative tip of first air flue 16 in attachment structure 3 is provided with multiple perforates；Perforate it is straight
Footpath is directly proportional to perforate center to the distance of the first air pump 15；
The second air pump 21 is additionally provided with inside tank body 2, the second air flue 22 of the second air pump 21, second air flue is connected
22 are deep into attachment structure 3, and member base end of second air flue 22 in attachment structure 3 is provided with multiple perforates；Perforate it is straight
Footpath is directly proportional to perforate center to the distance of the first air pump 15；
In attachment structure 3, the second air flue 22 is located at the top of the first air flue 16, perforate and the first air flue of the second air flue 22
16 perforate is relative up and down.
Specific embodiment two
The horizontal pneumatic optical effect analogue means of the present embodiment, on the basis of specific embodiment one, is further limited
Also include water tank 6 and water pump 7, respectively there is one outlet the top and bottom of cooling layer 13, and the water in water tank 6 is pumped into by water pump 7
The outlet at bottom of cooling layer 13, water is from the top exit reflow tank of cooling layer 13, as shown in Figure 3.
This structure design, using the slow thermal conductivity of water, had both realized the insulation to ceramic layer 11 and intermediate layer 12, it is ensured that
Aero-optical effect analogue means simulates the stability of aero-optical effect, and the cooling to shell 14 is realized again, it is ensured that real
Test safety.
Specific embodiment three
The horizontal pneumatic optical effect analogue means of the present embodiment, on the basis of specific embodiment one, is further limited
The lid 5 is stove circle structure, including multiple diameters it is different, be nested successively, the annular ring that section is hierarchic structure, as shown in figure 4,
Fig. 4 show three annular rings it is 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 indicator, change aero-optical effect simulation effect, and then increase gas of the present invention
The simulation context of dynamic optical effect analogue means.
Specific embodiment four
The horizontal pneumatic optical effect analogue means of the present embodiment, on the basis of specific embodiment one, is further limited
The tank body 2 is stretching structure.
This structure design, can be by adjusting the length of tank body 2, and realization is not changing other structures, parameter and technology
On the premise of index, change aero-optical effect simulation effect, and then increase the mould of aero-optical effect analogue means 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 come
Change aero-optical effect simulation effect, and then increase the simulation context of aero-optical effect analogue means of the present invention, be to use
Air-flow carries out aero-optical effect and directly simulates the characteristic just having, and the characteristic does not illustrate not only in the prior art, and
Also beyond the cognition of those skilled in the art.
Specific embodiment five
Above horizontal pneumatic optical effect analogue means, also including optical imaging system 8, the optical imaging system is as schemed
Shown in 5, including light source 81, pin hole 82, collimation lens 83, grating 84, object lens 85 and imaging sensor 86；The light that light source 81 is sent
Beam, forms collimated light beam through the formation spot light of needle passing hole 82, then after the collimation of collimation lens 83, illuminates grating 84, the light
Grid 84 are separately positioned on the object space and image space of object lens 85 with imaging sensor 86；Wherein, light source 81, pin hole 82, collimation lens 83
It is arranged on grating 84 inside black matrix 1, imaging sensor 86 is arranged on inside tank body 2, object lens 85 are arranged on the inside of black matrix 1 or tank
Inside body 2.
This structure design, can be monitored, the figure obtained using imaging sensor 86 to Pneumatic optical simulation effect
Calculating as entering the decay of the contrast of line raster 84, controls resistance wire 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 horizontal pneumatic optical effect analogue means of the present embodiment, on the basis of specific embodiment five, is further limited
The grating 84 can be rotated by 90 ° where it in plane.
It has been investigated that, the direct analog form of aero-optical effect is carried out with using optical analog and algorithm mould using air-flow
The essential distinction for intending indirect analog mode is that optical analog and algorithm simulation can occur in two-dimensional directional in air-flow to be controlled
Difference, such difference is carrying out 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 beyond the cognition of those skilled in the art, it is therefore necessary to two-dimensional directional all
It is monitored.And this structure qualification of the present embodiment, the contrast change of monitoring grating 84 in the two-dimensional direction can be realized
Rule, be prevented effectively from single direction realize simulation, and other direction it is not up to standard the problem of, be conducive to improve aero-optical effect mould
The accuracy of plan.
It should be noted that in the embodiment above, as long as reconcilable technical scheme can carry out permutation and combination, this
Art personnel can be possible to according to the mathematical knowledge limit of permutation and combination, therefore, and 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 horizontal pneumatic optical effect analogue means, it is characterised in that the black matrix set gradually including level（1）And tank body
（2）, black matrix（1）Opening and tank body（2）Opening it is relative, black matrix（1）With tank body（2）Pass through attachment structure（3）Connection；
Described black matrix（1）Include ceramic layer successively from inside to outside（11）, intermediate layer（12）, cooling layer（13）And shell（14）；
The intermediate layer（12）Middle setting has resistance wire, and inwall is provided with temperature sensor, the cooling layer（13）Water-filling；
The tank body（2）Top, which is provided with opening, opening, is provided with lid（5）；
In black matrix（1）Inside is additionally provided with the first air pump（15）, connect the first air pump（15）The first air flue（16）, described first
Air flue（16）It is deep into attachment structure（3）In, the first air flue（16）In attachment structure（3）In operative tip be provided with multiple open
Hole；The diameter of perforate and perforate center to the first air pump（15）Distance be directly proportional；
In tank body（2）Inside is additionally provided with the second air pump（21）, connect the second air pump（21）The second air flue（22）, described second
Air flue（22）It is deep into attachment structure（3）In, the second air flue（22）In attachment structure（3）In member base end be provided with multiple open
Hole；The diameter of perforate and perforate center to the first air pump（15）Distance be directly proportional；
In attachment structure（3）In, the second air flue（22）Positioned at the first air flue（16）Top, the second air flue（22）Perforate and first
Air flue（16）Perforate it is relative up and down.
2. horizontal pneumatic optical effect analogue means according to claim 1, it is characterised in that also including water tank（6）With
Water pump（7）, the cooling layer（13）Respectively there are one outlet, water pump in top and bottom（7）By water tank（6）In water be pumped into cooling layer
（13）Outlet at bottom, water is from cooling layer（13）Top exit reflow tank.
3. horizontal pneumatic optical effect analogue means according to claim 1, it is characterised in that the lid（5）For stove circle
Structure, including multiple diameters it is different, be nested successively, the annular ring that section is hierarchic structure.
4. horizontal pneumatic optical effect analogue means according to claim 1, it is characterised in that the tank body（2）To stretch
Shrinking structure.
5. the horizontal pneumatic optical effect analogue means according to claim 1,2,3 or 4, it is characterised in that also including light
Learn imaging system（8）, the optical imaging system（8）Including light source（81）, pin hole（82）, collimation lens（83）, grating（84）,
Object lens（85）And imaging sensor（86）；Light source（81）The light beam sent, through needle passing hole（82）Spot light is formed, then by collimation
Lens（83）Collimated light beam is formed after collimation, grating is illuminated（84）, the grating（84）With imaging sensor（86）Set respectively
In object lens（85）Object space and image space；Wherein, light source（81）, pin hole（82）, collimation lens（83）And grating（84）It is arranged on black
Body（1）Inside, imaging sensor（86）It is arranged on tank body（2）Inside, object lens（85）It is arranged on black matrix（1）Internal or tank body（2）
It is internal.
6. horizontal pneumatic optical effect analogue means according to claim 5, it is characterised in that the grating（84）Can
It is rotated by 90 ° where it in plane.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107067919A (en) * | 2016-10-08 | 2017-08-18 | 哈尔滨理工大学 | A kind of horizontal pneumatic optical effect analogue means |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107067919A (en) * | 2016-10-08 | 2017-08-18 | 哈尔滨理工大学 | A kind of horizontal pneumatic optical effect analogue means |
| CN107067919B (en) * | 2016-10-08 | 2022-08-26 | 哈尔滨理工大学 | Horizontal pneumatic optical effect simulation device |
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