CN106767715B - Heavy caliber geostationary orbit satellite optical camera system and its test method - Google Patents
Heavy caliber geostationary orbit satellite optical camera system and its test method Download PDFInfo
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- CN106767715B CN106767715B CN201611084671.6A CN201611084671A CN106767715B CN 106767715 B CN106767715 B CN 106767715B CN 201611084671 A CN201611084671 A CN 201611084671A CN 106767715 B CN106767715 B CN 106767715B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
- G01C11/02—Picture taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
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Abstract
The invention discloses a kind of heavy caliber geostationary orbit satellite optical camera system and its test methods, heavy caliber geostationary orbit satellite optical camera system includes vacuum tank, optical camera, camera mounting bracket, turntable, sun simulating light source, Orbital heat flux simulation electric heater, hood, Orbital heat flux simulation electric heater, hood are all connected with optical camera, and optical camera is mounted on the turntable in vacuum tank by camera mounting bracket etc..The present invention can be improved the accuracy of heat balance test, reduce the error of test, reduce cost.
Description
Technical field
The present invention relates to a kind of optical cameras, more particularly to a kind of heavy caliber geostationary orbit satellite optical camera system
System and its test method.
Background technique
The method of simulation space heat flux mainly has both at home and abroad at present: the solar simulator of radial pattern, infrared lamp arrays and red
The sheet resistance heater of outer cage etc. and conduction type.Wherein solar simulator using xenon lamp be used as light source, spatial distribution and
Sunlight relatively, can test the hot optical property of spacecraft surface covering, can hide mutually between preferable validation instrument surface
The influence of gear is especially good to the spacecraft of complex appearance or instrument adaptability.For big hood bore geostationary orbit
The optical camera of satellite, since the solar irradiation time of an orbital period in hood is long and illumination angle constantly changes, simultaneously
Modular construction in hood is complicated and there are the components such as the optical mirror slip of selective absorbing, it is therefore necessary to use solar simulator
Simulate Orbital heat flux in hood.For the optical camera of big hood bore, since its structure size is big, hood subtended angle is big,
The angle for needing to rotate is big, to receive the limitation of vacuum tank size in actual tests, it is therefore desirable to camera with turn
The positional relationship of platform, the movement process of turntable are analyzed.Simultaneously because solar simulation illumination and the rotation of turntable introduce portion
Exceptionally hot-fluid, it is therefore desirable to Orbital heat flux be analyzed, counted and integrated treatment.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of heavy caliber geostationary orbit satellite optical camera systems
And its test method, it can be improved the accuracy of heat balance test, reduce the error of test, reduce cost.
The present invention is to solve above-mentioned technical problem by following technical proposals: a kind of heavy caliber geostationary orbit is defended
Starlight camera system comprising vacuum tank, optical camera, camera mounting bracket, turntable, sun simulating light source, Orbital heat flux mould
Quasi- electric heater, hood, Orbital heat flux simulation electric heater, hood are all connected with optical camera, and optical camera passes through camera
Mounting bracket is mounted on the turntable in vacuum tank, and hood collar extension center is overlapped with turntable center line, hood center with too
The center line of positive analog light source is overlapped.
Preferably, the central axis of the turntable and rotational angle are adjusted according to the limitation of the size of vacuum tank, are used for mould
For the purpose of quasi- hood internal part Orbital heat flux.
Preferably, light barrier is equipped between the sun simulating light source and vacuum tank, light barrier is moved as needed.
The present invention also provides a kind of test method of heavy caliber geostationary orbit satellite optical camera system, including it is following
Step:
Step 1: adding light barrier before sun simulating light source, opening within 0.5 hour in advance and the solar simulator sun being arranged and is normal
Number, camera are in 0 ° of position；
Step 2: the time is the 0:00 moment, keeps plus light-blocking board status, unlatching turntable are rotated by 0.25 °/min, applied simultaneously
It is powered on heater and simulates Orbital heat flux；
Step 3: the time is the 0:36 moment, light barrier is removed；
Step 4: the time is the 4:00 moment, add light barrier, close sun simulating light source, closes turntable；
Step 5: the time is the 18:00 moment, opens turntable and rotated by -1 °/min；
Step 6: the time is the 19:30 moment, opens and solar simulator solar constant is set；
Step 7: the time is the 20:00 moment, light barrier is removed, turntable is rotated by 0.25 °/min；
Step 8: the time is the 23:24 moment, add light barrier；
Step 9: the time is the 24:00 moment, it is recycled to step 2.
Preferably, the step 2 to step 9 is an operating condition of test circulation, and repetitive cycling to temperature data reaches heat
Equilibrium criterion, then operating condition of test is completed.
Preferably, electric heater simulation Orbital heat flux has comprehensively considered solar simulation light in the step 2 and turntable rotation is drawn
The Orbital heat flux entered.
Preferably, the test method of the heavy caliber geostationary orbit satellite optical camera is externally hot by heat analysis
Stream carries out segment processing, is simulated using solar simulator to the incident Orbital heat flux in camera hood, is rotated using turntable
The simulation that solar irradiation angle changes over time in hood is realized, using electric heating sheets to the absorption Orbital heat flux at other positions of camera
It is simulated, using the simulation for placing light barrier realization shade between simulated solar light source and vacuum tank light inlet.
Preferably, the method that the heat analysis carries out segment processing to Orbital heat flux are as follows: establish sun simulating light source and camera
Thermal model, according in camera hood light application time and vacuum tank size constraints determine the angle of rotation of test turntable
Range is spent, region and numerical value of the solar simulation illumination outside hood are counted.
The positive effect of the present invention is that: the present invention being capable of complicated shape and optics in accurate simulation camera hood
Sunlight Orbital heat flux size and change procedure on eyeglass, improve the accuracy of heat balance test；The present invention can comprehensively consider
The application of solar simulation hot-fluid and electric heater simulation hot-fluid, reduces the error of test；The present invention can be according to the mouth of hood
The actual size of diameter size and vacuum tank seeks reasonable rotational angle, reduces the investment of test.The invention is comprehensively considering examination
Test on the basis of condition limitation, carried out for the different position of optical camera it is zoning simulated, improve heat test accuracy and
Validity.
Detailed description of the invention
Fig. 1 is positive structure schematic of the invention.
Fig. 2 is side structure schematic diagram of the invention.
Specific embodiment
Present pre-ferred embodiments are provided with reference to the accompanying drawing, in order to explain the technical scheme of the invention in detail.
As depicted in figs. 1 and 2, heavy caliber geostationary orbit satellite optical camera system of the present invention includes vacuum tank 1, light
It learns camera 2, camera mounting bracket 3, turntable 4, sun simulating light source 5, Orbital heat flux and simulates electric heater 6, hood 7, Orbital heat flux
Simulation electric heater 6, hood 7 are all connected with optical camera 2, and optical camera 2 is mounted on vacuum tank by camera mounting bracket 3
On turntable 4 in 1,7 collar extension center of hood is overlapped with 4 center line of turntable, in 7 center of hood and sun simulating light source 5
Heart line is overlapped.
The central axis and rotational angle of the turntable 4 can be limited according to the size of vacuum tank and be adjusted, and be hidden for simulating
For the purpose of light shield internal part Orbital heat flux.
Light barrier is equipped between the sun simulating light source and vacuum tank, light barrier is moved as needed.
The test method of heavy caliber geostationary orbit satellite optical camera of the present invention the following steps are included:
Step 1: adding light barrier before sun simulating light source, opening within 0.5 hour in advance and the solar simulator sun being arranged and is normal
Number, camera are in 0 ° of position, i.e. hood centre normal is overlapped with solar source centre normal；
Step 2: the time is the 0:00 moment, keeps plus light-blocking board status, unlatching turntable are rotated by 0.25 °/min, applied simultaneously
It is powered on heater and simulates Orbital heat flux；
Step 3: the time is the 0:36 moment, light barrier is removed；
Step 4: the time is the 4:00 moment, add light barrier, close sun simulating light source, closes turntable；
Step 5: the time is the 18:00 moment, opens turntable and rotated by -1 °/min；
Step 6: the time is the 19:30 moment, opens and solar simulator solar constant is set；
Step 7: the time is the 20:00 moment, light barrier is removed, turntable is rotated by 0.25 °/min；
Step 8: the time is the 23:24 moment, add light barrier；
Step 9: the time is the 24:00 moment, it is recycled to step 2.
The step 2 to step 9 is an operating condition of test circulation, and repetitive cycling to temperature data reaches thermal balance and sentences
According to then operating condition of test is completed.
Electric heater simulation Orbital heat flux has comprehensively considered solar simulation light in the step 2 and turntable rotates the outer of introducing
Hot-fluid.
The test method of heavy caliber geostationary orbit satellite optical camera is to be segmented by heat analysis to Orbital heat flux
Processing, simulates the incident Orbital heat flux in camera hood using solar simulator, is rotated using turntable and realizes hood
The simulation that interior solar irradiation angle changes over time is simulated using absorption Orbital heat flux of the electric heating sheets to other positions of camera,
The simulation for realizing shade using light barrier is placed between simulated solar light source and vacuum tank light inlet.
The method that the heat analysis carries out segment processing to Orbital heat flux are as follows: establish sun simulating light source and camera heat analysis mould
Type, according in camera hood light application time and vacuum tank size constraints determine the rotational angle range of test turntable,
Count region and numerical value of the solar simulation illumination outside hood.
Working principle of the present invention is as follows: incident Orbital heat flux uses xenon lamp solar simulation optical analog in hood, and xenon lamp is too
Formpiston, which intends intensity of illumination, to be adjusted according to the curve of the light intensity and electric current demarcated in advance, and simulated solar light source light barrier is placed
Between light source and vacuum tank light inlet, it can be moved as needed；The rotary middle spindle of camera turntable is parallel to hood
Mouth plane simultaneously passes through planar central, and turntable is carried out in certain test period section, and slewing rate is 0.25 °/min；Electric heating sheets
Orbital heat flux analogy method are as follows: for region of the solar simulation illumination outside hood, subtract solar simulation from total Orbital heat flux
Numerical value of the illumination outside hood, all electric heater simulation Orbital heat flux are synchronous with turntable rotation to be applied；Solar simulator light
It can be configured near 1 solar constant according to the solar irradiation intensity of calibration and the curve of electric current according to intensity；Electric heater
The Orbital heat flux that simulation Orbital heat flux has comprehensively considered solar simulation light and turntable rotation introduces.
Particular embodiments described above, the technical issues of to solution of the invention, technical scheme and beneficial effects carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to
The present invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection scope of invention.
Claims (4)
1. a kind of test method of heavy caliber geostationary orbit satellite optical camera system, which is characterized in that the heavy caliber
The test method of geostationary orbit satellite optical camera the following steps are included:
Step 1: adding light barrier before solar simulator, opens and solar simulator solar constant, phase are set within 0.5 hour in advance
Machine is in 0 ° of position；
Step 2: the time is the 0:00 moment, keeps plus light-blocking board status, unlatching turntable apply electricity by 0.25 °/min rotation
Heater simulates Orbital heat flux；
Step 3: the time is the 0:36 moment, light barrier is removed；
Step 4: the time is the 4:00 moment, add light barrier, close solar simulator, closes turntable；
Step 5: the time is the 18:00 moment, opens turntable and rotated by -1 °/min；
Step 6: the time is the 19:30 moment, opens and solar simulator solar constant is set；
Step 7: the time is the 20:00 moment, light barrier is removed, turntable is rotated by 0.25 °/min；
Step 8: the time is the 23:24 moment, add light barrier；
Step 9: the time is the 24:00 moment, it is recycled to step 2；
The step 2 to step 9 is an operating condition of test circulation, and repetitive cycling to temperature data reaches thermal balance criterion, then
Operating condition of test is completed.
2. the test method of heavy caliber geostationary orbit satellite optical camera system as described in claim 1, feature exist
In the Orbital heat flux that electric heater simulation Orbital heat flux has comprehensively considered solar simulation light in the step 2 and turntable rotation introduces.
3. the test method of heavy caliber geostationary orbit satellite optical camera system as described in claim 1, feature exist
In the test method of the heavy caliber geostationary orbit satellite optical camera is to be carried out at segmentation by heat analysis to Orbital heat flux
Reason, simulates the incident Orbital heat flux in camera hood using solar simulator, is rotated using turntable and realizes camera shading
The simulation that solar irradiation angle changes over time in covering carries out mould using absorption Orbital heat flux of the electric heater to other positions of camera
It is quasi-, using the simulation for placing light barrier realization shade between simulated solar light source and vacuum tank light inlet.
4. the test method of heavy caliber geostationary orbit satellite optical camera system as claimed in claim 3, feature exist
In the method that the heat analysis carries out segment processing to Orbital heat flux are as follows: solar simulator and camera thermal model are established, according to
Light application time and vacuum tank size constraints in camera hood determine the rotational angle range of test turntable, count the sun
Region and numerical value of the illumination simulation outside camera hood.
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| CN201611084671.6A CN106767715B (en) | 2016-11-30 | 2016-11-30 | Heavy caliber geostationary orbit satellite optical camera system and its test method |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390455B (en) * | 2017-06-01 | 2020-05-12 | 北京空间机电研究所 | Precise thermal control design method for optical system of stationary track remote sensor |
| CN107368123A (en) * | 2017-08-31 | 2017-11-21 | 王洋 | A kind of control method and device for adjusting the outer temperature heat flux simulation of microsatellite rail |
| CN107765699A (en) * | 2017-09-26 | 2018-03-06 | 北京控制工程研究所 | Geostationary orbit satellite has the real-time sunlight bypassing method of tubular light shield camera |
| CN107844631B (en) * | 2017-09-29 | 2021-02-09 | 北京空间机电研究所 | Method for accurately determining extreme working condition of heat flow outside remote sensor full-life cycle orbit |
| CN108803642B (en) * | 2018-06-14 | 2021-04-13 | 上海卫星工程研究所 | Solar protection attitude control correlation design method for optical imaging satellite camera |
| CN109063259B (en) * | 2018-07-02 | 2023-03-31 | 上海卫星工程研究所 | Method for designing load sun shield of geostationary orbit large-caliber optical imaging satellite |
| CN109270587B (en) * | 2018-10-30 | 2020-07-14 | 北京空间机电研究所 | Flexible lens hood unfolding state detection system |
| CN109975830B (en) * | 2019-02-21 | 2021-09-03 | 上海卫星工程研究所 | In-orbit thermal deformation suppression system for GEO satellite optical remote sensing instrument |
| CN110986886A (en) * | 2019-12-18 | 2020-04-10 | 中国科学院长春光学精密机械与物理研究所 | Double-camera dynamic rotation scanning three-dimensional imaging simulation device |
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| KR20140048625A (en) * | 2012-10-16 | 2014-04-24 | 한국항공우주연구원 | Simulating apparatus for solar source |
| CN104803012A (en) * | 2015-03-25 | 2015-07-29 | 北京空间机电研究所 | High-orbit optical remote sensor vacuum hot test external heat flow simulation method |
| CN105067009A (en) * | 2015-07-17 | 2015-11-18 | 长春理工大学 | Ground-based simulation light source device for testing of satellite sensor |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140048625A (en) * | 2012-10-16 | 2014-04-24 | 한국항공우주연구원 | Simulating apparatus for solar source |
| CN104803012A (en) * | 2015-03-25 | 2015-07-29 | 北京空间机电研究所 | High-orbit optical remote sensor vacuum hot test external heat flow simulation method |
| CN105067009A (en) * | 2015-07-17 | 2015-11-18 | 长春理工大学 | Ground-based simulation light source device for testing of satellite sensor |
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