CN108613739A - Small-sized ionosphere photometer suitable for micro-nano satellite - Google Patents
Small-sized ionosphere photometer suitable for micro-nano satellite Download PDFInfo
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- CN108613739A CN108613739A CN201810349603.0A CN201810349603A CN108613739A CN 108613739 A CN108613739 A CN 108613739A CN 201810349603 A CN201810349603 A CN 201810349603A CN 108613739 A CN108613739 A CN 108613739A
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- Prior art keywords
- ionosphere
- detector
- photometer
- light
- parabolic mirror
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- 239000005433 ionosphere Substances 0.000 title claims abstract description 46
- 229910001632 barium fluoride Inorganic materials 0.000 claims abstract description 9
- 239000013078 crystal Substances 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 19
- 229910052782 aluminium Inorganic materials 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 239000011796 hollow space material Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 230000005622 photoelectricity Effects 0.000 claims description 2
- 208000020442 loss of weight Diseases 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 7
- 230000005693 optoelectronics Effects 0.000 abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011521 glass Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000002910 structure generation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
Abstract
The invention discloses a kind of ionosphere photometers suitable for micro-nano satellite platform, including hollow parabolic mirror, MCP type antivibration detectors and circuit board, speculum sets gradually on circuit boards with detector and the light being incident on reflecting plate is made to converge into detector, and detector includes the BaF in braced frame and frame2Crystal window, microchannel plate, detector anode and high voltage power supply, light is through BaF2Crystal window filters out and carries out opto-electronic conversion and electron multiplication by microchannel plate after stray light, and receives multiplying charge cloud signal via detector anode.The present invention by existing photometric weight by 5Kg or more mitigate be 1Kg hereinafter, volume reduce 50% or more and reduce photon optical filter loss, make instrumental sensitivity improve 30% or more, be suitable for batch machining, reduce mass production cost.
Description
Technical field
The invention belongs to space ionospheric probing technical fields, in particular it relates to which a kind of defend suitable for micro-nano
The small-sized ionosphere photometer of star.
Background technology
In general, radio signal is in earth ionospheric propagation, path can bend, and spread speed can also change, this
The communication effect of radio signal will be weakened, wherein earth ionosphere refers to：Solar electromagnetic radiation is irradiated to air, makes a certain layer
Atmospheric portion ionizes, and forms the form of ion and electronics, is predominantly located between the height away from ground 60km to about 450km, the whole world
Covering.And ionosphere mostlys come from the influence of radio signal the total electron content in earth ionosphere, shows ionosphere
The error that delay is brought caused by refraction effect.Ionosphere is for satellite communication, GPS navigation etc. important.Than
Such as, for GPS signal, at night when satellite is in zenith direction, influence of the ionospheric refraction to signal propagation path is reachable
5m, and before and after high noon in the daytime, when satellite is close to horizon, the delay error of 150m can be reached.
The satellite experiments such as external IMAGE, TIMED and COSMIC, it was confirmed that the O in ionosphere+With the compound mistake of electronics
The 135.6nm nightglows that journey generates are related with ionospheric electron density, therefore 135.6nm nightglow optical detections help to study night
Between ionospheric structure change, and then the influence to ionosphere to satellite communication, GPS navigation etc. prejudges, and reduces loss.
Due to ionosphere Global coverage, and dynamic change, and the visual field that single ionosphere photometer is detected is limited, in order to
The ionospheric electron density data for obtaining high-spatial and temporal resolution, need ionosphere photometer as much as possible in different tracks
Plane detects ionosphere.If ionosphere photometer is complex or volume, weight are larger, ionospheric probing will be caused
Cost is higher, while also needing to consider different satellite platforms can provide ionosphere photometer the resources branch such as mechanical, electrical, hot
It holds.Therefore, the micro-nano satellite constellation that therefrom is few, the development cycle is short, at low cost be solve ionosphere detect on a large scale can
Take method, can meet to ionosphere high-precision, all standing, low cost great demand, obtain high-spatial and temporal resolution the whole world electricity
Absciss layer total electron content (TEC) is distributed.Thus the problem of bringing, which is that ionosphere is photometric, to be minimized, is inexpensive, low-power consumption
Demand.
Existing ionosphere remote sensing instrument includes two classes, and one kind is extreme ultraviolet spectrometer, usually has entrance slit (to reduce
Visual field), grating (solve the problems, such as two or more spectral coverage be divided), scanning mirror and its driving mechanism (adjustment incident light angle), light
Speculum and lens (transmission light path) are learned, volume, weight and satellite resource occupy all higher；Another kind of is ionosphere photometer,
By the way of simple reflector plus energy-probe, the detection to ionosphere total electron content is realized.Ionosphere photometer is opposite
It is all smaller in spectrometer volume, weight and power consumption, but structure includes glass reflector, BaF2 optical filters, MgF2 window photoelectricity
The mating high voltage power supply of multiplier tube and photomultiplier, divider etc., for the vibration damage for preventing when satellite launch, need to match
The vibration proof structure of set, therefore volume, weight are difficult to further decrease.20kg micro-nano satellites below are greatly developed in the world at present
Platform, limitation of traditional ionosphere photometer due to volume, weight and cost, it is difficult to be applied to these satellites.To adapt to weight
With volume all in the micro-nano satellite platform of continued compression, new design and technological means need to be used, realizes that ionosphere is photometric
Low cost and lightweight adapt it to the demand produced in enormous quantities.
Invention content
Based on this, goal of the invention of the invention is to solve limitation of traditional ionosphere photometer due to volume, weight, difficult
To be applied to the technical issues of micro-nano satellite platform realizes the detection of ionosphere Global coverage.The present invention passes through aluminium reflector structure generation
Traditional photovoltaic multiplier tube is replaced for traditional glass mirror structure, MCP type antivibration detectors, Light Electrical structure is realized with circuit board
The small-sized ionosphere photometer suitable for micro-nano satellite platform is realized in integrated design.
Present invention employs the following technical solutions：
Suitable for the ionosphere photometer of micro-nano satellite platform, including hollow parabolic mirror, MCP (Multi
Channel Plate, MCP) type antivibration detector and circuit board, hollow aluminum parabolic mirror and MCP type antivibration detectors according to
Secondary setting on circuit boards and to be incident on whole light reflecting focals on hollow aluminum parabolic mirror enter it is above-mentioned
In detector, wherein above-mentioned detector includes braced frame and the BaF that is successively set in braced frame2Crystal window, table
Face is coated with the microchannel plate of CsI cathodes, detector anode and high voltage power supply, converges to the light in detector through BaF2Crystal window
Mouth filters out and carries out opto-electronic conversion and electron multiplication by microchannel plate after stray light, and receives multiplying charge via detector anode
Cloud signal；High voltage power supply is used for microchannel plate and anode supply.
Wherein, there is hollow aluminum parabolic mirror a parabolic shape reflecting surface, the opposite bottom of reflecting surface to have one
The mounting flange of machine-shaping, is provided with several vertical reinforcing ribs between reflecting surface and mounting flange, reinforcing rib is supported on throwing
The back side of object plane type reflecting surface simultaneously overleaf forms several reinforcing ribs hollow space separated from one another.
Wherein, several reinforcing ribs maintain the stabilization of parabolic shape reflecting surface, and incident light reflecting focal is entered
Speculum, is fixed on by above-mentioned detector, the processing integrated with reflector body 21 of mounting flange 23 by mounting flange 23
On circuit board 13.
Wherein, hollow parabolic mirror is aluminium reflector.
Wherein, include charge sensitive amplifier, wave-shaping circuit, discriminator circuit, power circuit on circuit board.
Wherein, hollow aluminum parabolic mirror is fixed on circuit boards with MCP type antivibration detector integrative installation technologies.
The present invention small-sized ionosphere photometer can will existing photometric weight by 5Kg or more mitigate for 1Kg with
Under, existing photometric volume is reduced 50% or more；
The small-sized photometric photodetector in ionosphere of the present invention uses BaF2Window reduces photon optical filter damage
It loses, instrumental sensitivity can be made to improve 30% or more；
The small-sized ionosphere photometer of the present invention uses aluminium reflector, is suitable for batch machining, reduce mass production at
This.
The small-sized ionosphere photometer of the present invention is reflected using aluminium reflector, MCP shock type detectors than traditional glass
Mirror, filament photomultiplier have better resistance to shock.
Description of the drawings
Fig. 1 is the small-sized ionosphere photometer structural schematic diagram of the embodiment of the invention.
Wherein：11- hollow aluminum parabolic mirrors, 12-MCP type antivibration detectors, 13- circuit boards.
Fig. 2 is the photometric hollow aluminum parabolic mirror structure in small-sized ionosphere of the embodiment of the invention
Schematic diagram.
Wherein：21- mirror bodies, 22- reinforcing ribs, 23- mounting flanges, 24- reflectings surface.
Fig. 3 is that the photometric MCP types antivibration panel detector structure in small-sized ionosphere of the embodiment of the invention shows
It is intended to.
Wherein：31-BaF2Window, the surfaces 32- are coated with the microchannel plate of CsI cathodes, 33- anodes, 34- high voltage power supplies.
Specific implementation mode
The small-sized ionosphere photometer suitable for micro-nano satellite of the present invention is described in detail below in conjunction with attached drawing,
These specific implementation modes are only used for the example present invention, it is no intended to carry out any restrictions to its protection domain.
The present invention the small-sized ionosphere photometer suitable for micro-nano satellite mainly including hollow aluminum parabolic mirror,
MCP type antivibration detectors and circuit board three parts.Fig. 1 shows that small-sized ionosphere photometer structure, hollow aluminum paraboloid are anti-
It penetrates mirror structure 11 to be fixed on circuit board 13 by integrally formed bottom mounting flange, MCP type antivibratioves panel detector structure 12 is logical
External frame is crossed equally to be mounted on circuit board 13.After far ultraviolet light incidence, is reflected through speculum 11 and focus entrance
In detector 12, it is defeated to form voltage pulse by putting, shaping, discriminator circuit before circuit board 13 for the charge signal of detector 12
Go out signal, carries out step-by-step counting.
Present invention employs hollow aluminum parabolic mirror, structure is as shown in Figure 2.One side processing in reflector body 21
Parabolic shape reflecting surface 24 is formed, and bottom is emptied, mitigates mirror body weight, only retains reinforcing rib 22, keep mirror surface type
Stablize, the processing integrated with reflector body 21 of mounting flange 23.Speculum is fixed on circuit board by mounting flange 23
On 13.
Present invention employs MCP type antivibration detectors, structure is as shown in Figure 3.Detector uses BaF2Crystal window 31,
Filter out the influence of 130.5nm and following stray light；Be coated with the microchannel plate 32 of CsI cathodes using surface, carry out opto-electronic conversion and
Electron multiplication；Detector anode 33 receives multiplying charge cloud signal；Detector integrates high voltage power supply 34 with panel detector structure, gives
Microchannel plate 32 and anode 33 are powered.
It after far ultraviolet light incidence, is converged by mirror reflection surface 24, light passes through detector BaF2Crystal window 31,
Filter out the influence of 130.5nm and following stray light.Light continues to the microchannel plate 32 that surface is coated with CsI cathodes, CsI cathodes
It is more sensitive to the light of 135.6nm, there are very strong inhibiting effect, the photon of 135.6nm to be generated through opto-electronic conversion visible light
Electronics, under the action of high voltage power supply 34, the electronics that light-to-current inversion generates doubles through MCP, and the MCP of layer 2-3 can make initiating electron
Generate 107Above multiplication effect forms charge cloud.Charge cloud signal is received by detector anode 33, in charge sensitive amplifier
Voltage pulse is formed under the action of device, is realized and is counted by subsequent conditioning circuit.
It is different from the photometric glass reflector in common ionosphere, present invention employs hollow aluminum parabolic mirrors.Aluminium
Speculum can save the mating vibration proof structure of glass reflector, and speculum itself can mitigate weight by emptying processing, together
When mounting flange and speculum can be carried out to integrated processing, weight, size can be mitigated significantly so that it can be mounted directly
It fixes on circuit boards.
It is different from the photometric optical filter in common ionosphere, photomultiplier, high voltage power supply, the structure of divider, this hair
It is bright to use MCP type antivibration detectors, said units functional structure is integrated, volume is reduced.MCP type antivibration detectors will
BaF2The directly encapsulation of crystal optical filter forms detector window, eliminates the MgF of conventional lights wire form photomultiplier2Window is reduced
The loss of photon optical filter, improves instrumental sensitivity.MCP type antivibration detectors plate CsI cathodes using the surfaces MCP, carry out light
Electricity conversion and electron multiplication have good resistance to shock instead of traditional filament opto-electronic conversion and electron multiplication mode.
Although the detailed description and description of the specific embodiments of the present invention are given above, it should be noted that
Those skilled in the art can be according to the present invention spirit various equivalent changes and modification, institute are carried out to the above embodiment
The function of generation, should all be within the scope of the present invention in the spirit covered without departing from specification and attached drawing.
Claims (4)
1. suitable for micro-nano satellite platform ionosphere photometer, including hollow parabolic mirror, MCP type antivibration detectors and
Circuit board, hollow aluminum parabolic mirror and MCP type antivibration detectors set gradually on circuit boards and so that being incident in
Whole light reflecting focals on empty aluminium parabolic mirror enter in above-mentioned detector, wherein above-mentioned detector includes support frame
Frame and the BaF being successively set in braced frame2Crystal window, surface are coated with the microchannel plate of CsI cathodes, detector anode
And high voltage power supply, the light in detector is converged to through BaF2Crystal window filters out and carries out photoelectricity by microchannel plate after stray light
Conversion and electron multiplication, and receive multiplying charge cloud signal via detector anode；High voltage power supply is used for microchannel plate and sun
Pole powers.
2. ionosphere photometer as described in claim 1, wherein hollow aluminum parabolic mirror is reflected with a parabolic shape
Face, the opposite bottom of reflecting surface, which has, is integrally machined molding mounting flange, and loss of weight, reflecting surface and installation are cut in speculum bottom
Several vertical reinforcing ribs are provided between flange, if reinforcing rib is supported on the back side of parabolic shape reflecting surface and is overleaf formed
Dry reinforcing rib hollow space separated from one another.
3. ionosphere photometer as claimed in claim 1 or 2, wherein several reinforcing ribs maintain parabolic shape reflecting surface
Stablize, and incident light reflecting focal is entered into above-mentioned detector, the processing integrated with reflector body 21 of mounting flange 23 is led to
It crosses mounting flange 23 speculum is fixed on circuit board 13.
4. ionosphere photometer as claimed in claim 1 or 2, wherein hollow parabolic mirror is aluminium reflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810349603.0A CN108613739A (en) | 2018-04-18 | 2018-04-18 | Small-sized ionosphere photometer suitable for micro-nano satellite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810349603.0A CN108613739A (en) | 2018-04-18 | 2018-04-18 | Small-sized ionosphere photometer suitable for micro-nano satellite |
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| Publication Number | Publication Date |
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| CN108613739A true CN108613739A (en) | 2018-10-02 |
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| CN201810349603.0A Pending CN108613739A (en) | 2018-04-18 | 2018-04-18 | Small-sized ionosphere photometer suitable for micro-nano satellite |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175781A (en) * | 2020-01-16 | 2020-05-19 | 中国科学院国家空间科学中心 | Multi-angle multispectral spaceborne ionosphere detection device |
| CN111238637A (en) * | 2020-01-16 | 2020-06-05 | 中国科学院国家空间科学中心 | Satellite-borne ionosphere photometer |
| CN111765971A (en) * | 2020-07-07 | 2020-10-13 | 北京卫星环境工程研究所 | Interference light eliminating structure for ionosphere photometer and control method |
| RU2764400C1 (en) * | 2020-12-30 | 2022-01-17 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Московский государственный университет имени М.В.Ломоносова» (МГУ) | Compact detector of uv emission of earth's atmosphere for use on small space vehicles |
| RU2764401C1 (en) * | 2020-12-30 | 2022-01-17 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Московский государственный университет имени М.В.Ломоносова» (МГУ) | Compact detector of uv emission of the earth's atmosphere with wide field of view for use on small space vehicles |
| CN114076636A (en) * | 2020-08-19 | 2022-02-22 | 中国科学院国家空间科学中心 | Photometer for far ultraviolet waveband airglow detection and detection method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175781A (en) * | 2020-01-16 | 2020-05-19 | 中国科学院国家空间科学中心 | Multi-angle multispectral spaceborne ionosphere detection device |
| CN111238637A (en) * | 2020-01-16 | 2020-06-05 | 中国科学院国家空间科学中心 | Satellite-borne ionosphere photometer |
| CN111238637B (en) * | 2020-01-16 | 2021-10-08 | 中国科学院国家空间科学中心 | Satellite-borne ionosphere photometer |
| CN111175781B (en) * | 2020-01-16 | 2021-12-07 | 中国科学院国家空间科学中心 | Multi-angle multispectral spaceborne ionosphere detection device |
| CN111765971A (en) * | 2020-07-07 | 2020-10-13 | 北京卫星环境工程研究所 | Interference light eliminating structure for ionosphere photometer and control method |
| CN111765971B (en) * | 2020-07-07 | 2022-11-22 | 北京卫星环境工程研究所 | Interference light eliminating structure for ionosphere photometer and control method |
| CN114076636A (en) * | 2020-08-19 | 2022-02-22 | 中国科学院国家空间科学中心 | Photometer for far ultraviolet waveband airglow detection and detection method thereof |
| RU2764400C1 (en) * | 2020-12-30 | 2022-01-17 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Московский государственный университет имени М.В.Ломоносова» (МГУ) | Compact detector of uv emission of earth's atmosphere for use on small space vehicles |
| RU2764401C1 (en) * | 2020-12-30 | 2022-01-17 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Московский государственный университет имени М.В.Ломоносова» (МГУ) | Compact detector of uv emission of the earth's atmosphere with wide field of view for use on small space vehicles |
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Application publication date: 20181002 |
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