CN220708552U - Ultra-large caliber infrared imaging system radiation calibration device - Google Patents
Ultra-large caliber infrared imaging system radiation calibration device Download PDFInfo
- Publication number
- CN220708552U CN220708552U CN202321496864.8U CN202321496864U CN220708552U CN 220708552 U CN220708552 U CN 220708552U CN 202321496864 U CN202321496864 U CN 202321496864U CN 220708552 U CN220708552 U CN 220708552U
- Authority
- CN
- China
- Prior art keywords
- plate
- radiation
- frame
- infrared imaging
- ultra
- 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
- 230000005855 radiation Effects 0.000 title claims abstract description 100
- 238000003331 infrared imaging Methods 0.000 title claims abstract description 37
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 39
- 239000010935 stainless steel Substances 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- -1 polytetrafluoroethylene Polymers 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000008685 targeting Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 3
- 239000000306 component Substances 0.000 description 15
- 238000013461 design Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Landscapes
- Radiation Pyrometers (AREA)
Abstract
The utility model relates to a radiation calibration device of an ultra-large caliber infrared imaging system, which mainly comprises a rear side double-layer supporting structure, a bottom supporting frame, a hoisting structure, a front auxiliary supporting frame and a plurality of radiation source components; the radiation source component consists of a radiation plate, a high-low temperature sensor, a heating plate, a heat balance plate, a rear side stainless steel frame, a refrigerator, a heat insulation layer and a frame; the high-low temperature sensor measures the temperature of the radiation plate, the heating plate heats the radiation plate, and the heat balance plate is arranged between the heating plate and the refrigerator; the rear side frame is used for fixing the refrigerator; the heat insulation layer reduces heat conduction between the radiation plate and the front support frame; the frame fixes the radiation plate. The radiation source assembly is fixedly connected to the support structure by means of a hoisting structure. Accurate radiometric calibration and performance testing of infrared imaging systems can be performed.
Description
Technical Field
The utility model belongs to the technical field of radiation calibration of infrared imaging systems, and particularly relates to the radiation calibration of an infrared imaging system in a vacuum low-temperature environment.
Background
With the development of infrared remote sensing technology, the infrared imaging technology is widely applied to the fields of infrared guidance, space reconnaissance systems, near space early warning systems, outer space infrared guidance striking systems, satellite-borne infrared remote sensing systems and the like. In order to accurately master each performance index of the infrared imaging system and ensure that the performance index reaches a pre-designed value, the actual working condition needs to be simulated, and the radiation calibration device is used for accurately performing radiation calibration and performance test on the infrared imaging system.
At present, as the caliber of infrared imaging equipment for space application is continuously increased, the effective area requirement of the infrared imaging equipment radiometric calibration device is continuously improved, and the radiometric calibration device of a small-caliber infrared imaging system cannot meet the current requirement, so that the radiometric calibration device of an ultra-large-caliber infrared imaging system needs to be developed.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides the ultra-large caliber infrared imaging system radiometric calibration device which is used for accurately radiometric calibration and performance test of the infrared imaging system in a laboratory simulating an actual working environment so as to obtain an accurate calibration coefficient, accurately master each performance index of the infrared imaging system and ensure that the performance index reaches a pre-designed value.
The utility model relates to a radiation calibration device of an ultra-large caliber infrared imaging system, which mainly comprises a rear side double-layer supporting structure, a bottom supporting frame, an integral hoisting structure, a front auxiliary supporting frame and four radiation source components. The radiation surface size is 4.5mX4.5 m, which is formed by splicing four rectangular radiation source components with the size of 4.5mX1.125 m, and the whole weight is 20t.
The rear double-layer support structure is formed by welding I-shaped stainless steel sections with the size of 4500 multiplied by 4660mm multiplied by 700mm, is arranged behind the radiation source assembly, provides a mounting reference for the radiation source assembly, plays an auxiliary supporting role, and prevents the radiation calibration device of the ultra-large caliber infrared imaging system from toppling over.
The bottom support frame is used for bearing the whole weight of the radiation calibration device of the ultra-large caliber infrared imaging system, ensuring the firm and stable installation of the device, welding and forming by using I-shaped stainless steel materials with two specifications of 300mm multiplied by 150mm and 200mm multiplied by 150mm, and carrying out aging treatment in the processing process to release stress.
The integral hoisting structure adopts a split type structure and consists of an integral hoisting cross beam, two vertical beams, an X-shaped stiffening beam and three connecting short beams, wherein the beams for integral hoisting are 150mm multiplied by 150mm, the thickness of the beams is 12mm of stainless steel I-steel, m16 screws are adopted for splicing and installation during assembly, and simulation and shrinkage test verification prove that the design requirements are met.
The front auxiliary support frame is arranged on the stainless steel frames at the two sides in front of the ultra-large caliber infrared imaging system radiation calibration device, is formed by welding an I-shaped stainless steel section bar with the thickness of 100mm multiplied by 100mm and a stainless steel plate with the thickness of 30mm, is fixed with the stainless steel frame of the ultra-large caliber infrared imaging system radiation calibration device through screws, is provided with a mounting support leg with the thickness of 30mm at the bottom, is welded at the tail end of the section bar of the auxiliary support, is connected with the screw of the bottom support frame, and is used for decomposing the weight of the ultra-large caliber infrared imaging system radiation calibration device onto the mounting support leg, so that the inclination of the gravity center of a radiation source to the front side is prevented, and meanwhile, the thermal stress of the auxiliary support structure can be released freely.
The radiation source component is a core component of the ultra-large caliber infrared imaging system radiation calibration device and mainly comprises a radiation plate, a high-low temperature sensor, a heating plate, a heat balance plate, a rear side stainless steel frame, a refrigerator, a heat insulation layer and a stainless steel frame.
The radiation plate is a key component of a radiation source assembly, and the design performance of the radiation plate directly influences technical indexes such as emissivity, temperature field uniformity, total weight and the like of a radiation calibration device of the ultra-large caliber infrared imaging system. Considering that the thermal expansion coefficient of red copper is close to that of a stainless steel refrigerator and a supporting frame, the heat conduction performance of red copper is better than that of aluminum, the radiation plates are made of oxygen-free red copper, the sizes of the four radiation plates are 4660mm multiplied by 1125mm multiplied by 60mm, and the weight of a single radiation plate is 2550kg.
The high-low temperature sensor is PT100 high-low temperature sensor and is connected with the radiation plate through M5 threads.
The substrate material of the heating plate is polyimide, and in order to prevent the low-temperature embrittlement damage from causing short circuit with the radiation plate, insulating heat conducting materials are filled between the heating plate and the radiation plate and between the heating plate and the refrigerator.
The heat balance plate is made of non-conductive materials, is arranged between the heating plate and the refrigerator, can avoid the heating plate being directly positioned between the radiation plate and the two metal structures of the refrigerator, reduces the heat conduction from the refrigerator to the radiation plate, can strengthen the insulativity of the heating plate, and improves the safety and reliability of the system. The heat balance plate is made of polytetrafluoroethylene plate with thickness of 3mm. Because the radiation surface of the radiation plate is large, the heat balance plate is formed by splicing 375mm multiplied by 375mm small blocks, and the flatness and the installation convenience are ensured.
The rear side stainless steel frame is mainly used for fixing an upper refrigerator and a lower refrigerator, and is formed by welding two H-shaped stainless steel sections with the specification of 140mm multiplied by 100mm, and the external dimension of each rear side supporting frame is 4660mm multiplied by 1200mm multiplied by 100mm.
The refrigerator mainly provides a stable and reliable refrigeration source for the radiation calibration device of the ultra-large caliber infrared imaging system, the main body of the refrigerator is made of stainless steel, and the refrigerator and the rear supporting structure are fixed into a whole. Considering that the radiation surface is oversized, the radiation surface is divided into 8 areas by 4.5m multiplied by 4.5m, namely 8 refrigerators are installed and fixed on the back of the radiation plate, the size of each refrigerator is 2325mm multiplied by 1200mm, the inside of each refrigerator is of a cavity structure, and the temperature of the radiation calibration device of the ultra-large caliber infrared imaging system can be reduced by injecting liquid nitrogen.
The design purpose of insulating layer is in order to reduce the heat conduction between radiant panel and the preceding braced frame, improves the temperature field homogeneity at radiant panel edge. The polyimide is selected as the heat insulating layer material by comprehensively comparing heat conductivity, structural strength and processing difficulty.
The stainless steel frame is designed to fix the radiating plate. The radiation plate is made of red copper material and soft in texture, and the radiation calibration device of the ultra-large caliber infrared imaging system is of a spliced structure, so that the stainless steel frame is designed. During splicing, the two radiation source assemblies are installed and fixed through flanges of stainless steel frames above and below the radiation source assemblies, so that the structural stability is enhanced.
The beneficial technical effects of the utility model are as follows: the ultra-large caliber infrared imaging system radiometric calibration device can simulate actual working conditions under laboratory conditions, accurately radiometric calibrate and test performance of the infrared imaging system, and can effectively improve detection accuracy of the infrared imaging system.
Drawings
FIG. 1 is a front view of a three-dimensional structure of the present utility model;
FIG. 2 is a rear view of the three-dimensional structure of the present utility model;
FIG. 3 is a block diagram of a radiation source module according to the present utility model;
FIG. 4 is an enlarged view of a portion of a radiation source module according to the present utility model;
1, a radiation source assembly I,2, a radiation source assembly II,3, a radiation source assembly III,4 and a radiation source assembly IV; 5. the bottom support frame, 6, the front auxiliary support frame, 7, the integral hoisting structure, 8 and the rear double-layer support structure; the heat-insulating type solar energy heating device comprises a stainless steel frame 3-1, a radiation plate 3-2, a rear side stainless steel frame 3-3, a refrigerator 3-4, a heat balance plate 3-5, a stainless steel mounting plate 3-6, a heat insulating layer 3-7, a high-low temperature sensor 4-1 and a heating plate 4-2.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
The utility model relates to a radiation calibration device of an ultra-large caliber infrared imaging system, which comprises a radiation source component I1, a radiation source component II2, a radiation source component III3 and a radiation source component IV4; a bottom support frame 5, a front auxiliary support frame 6, an integral hoisting structure 7 and a rear double-layer support structure 8; the heat-insulating type solar energy heating device comprises a stainless steel frame 3-1, a radiation plate 3-2, a rear side stainless steel frame 3-3, a refrigerator 3-4, a heat balance plate 3-5, a stainless steel mounting plate 3-6, a heat insulating layer 3-7, a high-low temperature sensor 4-1 and a heating plate 4-2.
The stainless steel frames 3-1 are placed on a platform and at specified positions, and a plurality of stainless steel frames are fixedly spliced through screws to serve as splicing references of the radiation source assembly; sequentially placing the heat insulation layers 3-7 at designated positions on the stainless steel frame 3-1 according to the design of the drawing; hanging the radiation surface of the radiation plate 3-2 downwards onto the heat insulation layer 3-7 by a travelling crane, and fixedly connecting the stainless steel frame 3-1, the heat insulation layer 3-7 and the radiation plate 3-2 by penetrating the heat insulation layer 3-7 through screws; the heating plate 4-2 is fixedly arranged on a designated area on the radiation plate 3-2 through GD414 silicon rubber; the high-low temperature sensor 4-1 is directly and fixedly connected with the radiation plate 3-2 through self threads; the flattened heat balance plate 3-5 is flatly paved on the heating plate 4-2; the refrigerator 3-4 is tiled on the heat balance plate 3-5, then passes through the heat balance plate 3-5 and the heating plate 4-2 through screws, and is connected with the radiation plate 3-2; the rear stainless steel frame 3-3 is fixedly connected with the matched end surface on the refrigerator 3-4 through screws; the 3 stainless steel mounting plates 3-6 are respectively connected with the stainless steel frame 3-1 and the rear side stainless steel frame 3-3 through screws; the heat insulation layer 3-7 is fixedly arranged with 3 stainless steel mounting plates 3-6 through bolts and nuts.
An ultra-large caliber infrared radiation source specific embodiment. Hanging the bottom support frame to a designated installation area through a travelling crane, and fixing the bottom support frame through screws; the rear double-layer support structure is erected through the travelling crane and is hung to a mounting surface on the bottom support frame, and the rear double-layer support structure is fixedly connected through screws and nuts; the radiation source component I is hung on the bottom supporting frame through a crane and is fixedly connected with the bottom supporting frame and the rear double-layer supporting structure through screws; the front auxiliary supporting frame is fixedly connected with the bottom supporting frame and the stainless steel frame 3-1 on the radiation source component I through screws; the radiation source component II is hung on the bottom supporting frame through a crane and is fixedly connected with the bottom supporting frame, the rear double-layer supporting structure and the radiation source component I through bolts; the radiation source component III is hung on the bottom supporting frame through a crane and is fixedly connected with the bottom supporting frame, the rear double-layer supporting structure and the radiation source component II through bolts; the radiation source component IV is hung on the bottom supporting frame through a crane and is fixedly connected with the bottom supporting frame, the rear double-layer supporting structure and the radiation source component III through bolts; after the ultra-large caliber infrared radiation source is spliced, the integral hoisting structure is connected with the bottom support frame and the radiation source components I, II, III and IV through screws, so that the structural stability of the ultra-large caliber infrared radiation source is enhanced.
The many features and advantages of the embodiments are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the embodiments which fall within the true spirit and scope thereof. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the embodiments of the utility model to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope thereof.
The utility model is not described in detail in a manner known to those skilled in the art.
Claims (6)
1. The radiation calibration device of the ultra-large caliber infrared imaging system is characterized by mainly comprising a rear side double-layer supporting structure, a bottom supporting frame, a hoisting structure, a front auxiliary supporting frame and a plurality of radiation source components;
the radiation source component mainly comprises a radiation plate (3-2), a high-low temperature sensor (4-1), a heating plate (4-2), a heat balance plate (3-5), a rear side stainless steel frame (3-3), a refrigerator (3-4), a heat insulation layer (3-7) and a frame (3-1);
fixedly splicing a plurality of frames (3-1); sequentially placing the heat insulation layers (3-7) on the frame (3-1); hanging the radiation surface of the radiation plate (3-2) downwards onto the heat insulation layer (3-7), and fixedly connecting the frame (3-1), the heat insulation layer (3-7) and the radiation plate (3-2); the heating plate (4-2) is glued and fixed on the radiation plate (3-2); the high-low temperature sensor (4-1) is fixedly connected with the radiation plate (3-2); the heat balance plate (3-5) is flatly paved on the heating plate (4-2); the refrigerator (3-4) is flatly paved on the heat balance plate (3-5), and the heat balance plate (3-5) and the heating plate (4-2) are fixedly connected with the radiation plate (3-2); the rear stainless steel frame (3-3) is fixedly connected with the matched end surface on the refrigerator (3-4); the mounting plate (3-6) is respectively connected with the frame (3-1) and the rear side stainless steel frame (3-3); the heat insulation layer (3-7) is fixedly connected with the mounting plate (3-6);
the rear double-layer support structure is fixed on a mounting surface on the bottom support frame by utilizing a hoisting structure, and the radiation source component is fixedly connected with the bottom support frame and the rear double-layer support structure; the front auxiliary supporting frame is fixedly connected with the bottom supporting frame and the frame (3-1) on the radiation source component.
2. The ultra-large caliber infrared imaging system radiation calibration device according to claim 1, wherein the hoisting structure adopts a split structure and consists of a hoisting cross beam, two vertical beams, an X-shaped stiffening beam and a connecting short beam, which are all I-shaped steel; the rear side double-layer support structure and the bottom support frame are formed by welding I-shaped stainless steel sections; the front auxiliary support frame is formed by welding I-shaped stainless steel sections and stainless steel plates, mounting support legs are arranged at the bottom of the front auxiliary support frame, and the front auxiliary support frame is welded at the tail ends of the sections of the auxiliary support frame and fixedly connected with the bottom support frame.
3. A ultra-large caliber infrared imaging system radiometric calibration apparatus as defined in claim 1 wherein said radiant panel material is selected from the group consisting of oxygen-free red copper.
4. The ultra-large caliber infrared imaging system radiometric calibration device according to claim 1, wherein the base material of the heating plate (4-2) is polyimide, and insulating heat conducting materials are filled between the heating plate and the radiation plate and between the heating plate and the refrigerator.
5. A radiation targeting device for ultra large caliber infrared imaging system as claimed in claim 1, wherein said heat balance plate (3-5) is a polytetrafluoroethylene plate.
6. A radiometric calibration device for ultra-large caliber infrared imaging systems as claimed in claim 1, wherein said refrigerator (3-4) has a hollow structure and is internally injected with liquid nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321496864.8U CN220708552U (en) | 2023-06-12 | 2023-06-12 | Ultra-large caliber infrared imaging system radiation calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321496864.8U CN220708552U (en) | 2023-06-12 | 2023-06-12 | Ultra-large caliber infrared imaging system radiation calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220708552U true CN220708552U (en) | 2024-04-02 |
Family
ID=90449961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321496864.8U Active CN220708552U (en) | 2023-06-12 | 2023-06-12 | Ultra-large caliber infrared imaging system radiation calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220708552U (en) |
-
2023
- 2023-06-12 CN CN202321496864.8U patent/CN220708552U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Emes et al. | Effect of turbulence characteristics in the atmospheric surface layer on the peak wind loads on heliostats in stow position | |
| CN103543209B (en) | A kind of insulator crack detecting method, Apparatus and system | |
| CN104913918A (en) | Pseudo-static test device | |
| Fan et al. | Experiment study and refined modeling of temperature field of steel-concrete composite beam bridges | |
| CN104015942A (en) | Ultrahigh-temperature thermal current simulation system used for spacecraft vacuum thermal test | |
| CN105043538B (en) | Solar simulator irradiation uniformity detection means and detection method under space environment | |
| CN204679269U (en) | A kind of pseudo static testing device | |
| CN220708552U (en) | Ultra-large caliber infrared imaging system radiation calibration device | |
| Zhang et al. | Simulating the fire-thermal-structural behavior in a localized fire test on a bare steel beam | |
| CN105628510B (en) | A kind of metal welding test piece cryogenic mechanics performance optical test method | |
| CN108613878A (en) | A kind of ultralow temperature mechanical test system based on DIC measuring technologies | |
| CN109115445B (en) | Dynamic impact test device under high temperature environment | |
| Calotescu et al. | Wind tunnel testing of telecommunication lattice towers equipped with ancillaries | |
| Lei et al. | Optical measurement on dynamic buckling behavior of stiffened composite panels under in-plane shear | |
| CN204389447U (en) | 750kV pillar porcelain insulator vibroacoustics detection experiment servicing unit | |
| CN109818136A (en) | The moveable Bounded-wave Simulator antenna of inflatable and Bounded-wave Simulator | |
| CN117569586A (en) | Construction method for irregular multi-curve triangular pyramid welding ball net frame | |
| CN110044260B (en) | Permanent magnet track irregularity detection equipment | |
| CN107806950B (en) | A kind of high thrust vector vertical device for testing structure | |
| CN110987504A (en) | Device and method for testing temperature gradient and influence thereof of steel structure under optical radiation | |
| Scortecci et al. | Experimental investigation of shock wave/boundary layer interactions over an artificially heated model in hypersonic flow | |
| CN112340070B (en) | Design method of ground test system of high-stability temperature measurement and control system | |
| CN104165932A (en) | General supporting base of test assisting device for vibration acoustical detection of 750kV strut porcelain insulators and test method | |
| CN110793865B (en) | FRP reinforced concrete beam interface heat resistance measuring system and measuring method | |
| CN211179344U (en) | FRP consolidates concrete beam interface heat resistance survey device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |