CN113054909A - Mars surface spectrum simulator - Google Patents
Mars surface spectrum simulator Download PDFInfo
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- CN113054909A CN113054909A CN202110367565.3A CN202110367565A CN113054909A CN 113054909 A CN113054909 A CN 113054909A CN 202110367565 A CN202110367565 A CN 202110367565A CN 113054909 A CN113054909 A CN 113054909A
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- 238000001228 spectrum Methods 0.000 title claims abstract description 132
- 238000004088 simulation Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims description 23
- 238000012360 testing method Methods 0.000 claims description 22
- 230000003287 optical effect Effects 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 14
- 229910052724 xenon Inorganic materials 0.000 claims description 13
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 27
- 238000002834 transmittance Methods 0.000 description 12
- 239000000428 dust Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 230000003595 spectral effect Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 238000011056 performance test Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
- H02S50/15—Testing of PV devices, e.g. of PV modules or single PV cells using optical means, e.g. using electroluminescence
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/005—Diaphragms
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a mars surface spectrum simulator, which comprises a light source component, a light uniformizing device and a filter set, wherein the light uniformizing device is arranged on the light source component; the light source assembly is used for emitting light beams, the light uniformizer and the filter set are sequentially located on a propagation path of the light beams, the light uniformizer comprises a plurality of discrete lens sets and is used for dividing the light beams and emitting uniform light beams, and the filter set is used for adjusting the spectrum of the uniform light beams and emitting mars surface simulation light beams. According to the mars surface spectrum simulator provided by the embodiment of the invention, the light equalizer is arranged to comprise the plurality of discrete lens groups, a light beam with Gaussian distribution is divided into the plurality of light beams, the plurality of light beams are superposed to form a uniform light beam with high uniformity distribution, and the filter group is used for adjusting the spectrum of the uniform light beam so as to modulate the uniform light beam, so that the spectrum of the uniform light beam is close to the spectrum of the mars surface, and the mars surface simulation light beam with high uniformity distribution is realized.
Description
Technical Field
The embodiment of the invention relates to the technical field of optics, in particular to a mars surface spectrum simulator.
Background
The light intensity of the Mars reaching the surface of the Mars is greatly weakened compared with the earth when the Mars are 1.52au away from the sun, and the average light intensity of the Mars orbit is 590W/m2The standard light intensity of the earth orbit AM0 is 1367W/m2I.e., the mars orbit average solar intensity is only about 43% of the standard intensity of the earth AM 0. In addition, the light intensity of Mars can fluctuate by + -19% according to the near and far day points (the corresponding sunlight intensity is 493-717W/m)2) Calculated as 36% -53% of the earth light intensity according to the proportion.
In addition, due to the existence of atmospheric components and suspended dust on the surface of the mars, sunlight can be absorbed and scattered in the process of passing through the air layer of the mars to reach the surface of the mars, so that the light intensity of the mars is further reduced, meanwhile, the absorption and scattering effects in different wavelength ranges are different, so that the spectrum of the mars is greatly changed, the transmittance of the sunlight in the atmosphere of the mars in a blue light section is only about 70%, the transmittance of red light and visible light can reach about 85%, and the spectrum of the mars has larger distortion relative to the spectrum of AM 0.
The Mars spectrum is an important input for the research of the Mars spectrum solar cell and the performance evaluation of the Mars vehicle solar cell array, and if the existing AM0 spectrum simulator is used for testing the Mars surface solar cell, the test result is greatly different from the actual performance output on the Mars surface.
Disclosure of Invention
The invention provides a mars surface spectrum simulator, which is used for realizing the simulation of a mars surface spectrum.
The embodiment of the invention provides a mars surface spectrum simulator, which comprises a light source component, a light uniformizing device and a filter set, wherein the light uniformizing device comprises a light source, a light uniformizing device and a light filter set;
the light source component is used for emitting light beams; the light homogenizer and the filter set are sequentially positioned on the propagation path of the light beam;
the light uniformizer comprises a plurality of discrete lens groups and is used for dividing the light beam and emitting a uniform light beam;
the filter set is used for adjusting the spectrum of the uniform light beam and emitting a Mars surface simulation light beam.
Optionally, the plurality of discrete lens groups includes a plurality of first discrete lens groups and a plurality of second discrete lens groups, the uniform light beam includes a first uniform light beam and a second uniform light beam, the first discrete lens group is configured to convert the light beam into the first uniform light beam, and the second discrete lens group is configured to convert the light beam into the second uniform light beam;
the filter set comprises a plurality of AM0 filters and a plurality of modulation filters, the AM0 filters are arranged in one-to-one correspondence with the first discrete lens group, and the modulation filters are arranged in one-to-one correspondence with the second discrete lens group;
the Mars surface simulation light beams comprise a first modulation light beam and a second modulation light beam, and the AM0 optical filter is used for modulating the spectrum of the first uniform light beam and emitting the first modulation light beam; the modulation optical filter is used for modulating the spectrum of the second uniform light beam and emitting the second modulated light beam.
Optionally, a plurality of said second discrete lens groups are disposed around a plurality of said first discrete lens groups; a plurality of the modulation filters are disposed around a plurality of the AM0 filters.
Optionally, the plurality of modulation filters include a first junction filter, a second junction filter, and a third junction filter;
the transmission wavelength range of the first junction filter is 300 nm-700 nm, the transmission wavelength range of the second junction filter is 700 nm-850 nm, and the transmission wavelength range of the third junction filter is 900 nm-1700 nm.
Optionally, the second junction filter includes a first sub-filter and a second sub-filter, the first sub-filter and the second sub-filter are stacked along the propagation direction of the second uniform light beam, the transmission wavelength range of the first sub-filter is 700nm to 1100nm, and the transmission wavelength range of the second sub-filter is 400nm to 850 nm.
Optionally, the plurality of discrete lens groups comprises 7 of the first discrete lens groups and 12 of the second discrete lens groups, the 12 of the second discrete lens groups being disposed around the 7 of the first discrete lens groups; the filter set comprises 7 of the AM0 filters and 12 of the modulation filters, the 12 of the modulation filters being disposed around the 7 of the AM0 filters;
the 12 modulation filters include 4 first junction filters, 4 second junction filters and 4 third junction filters, and the first junction filters, the second junction filters and the third junction filters are alternately arranged.
Optionally, the mars surface spectrum simulator further includes a diaphragm assembly and a stepping motor, where the diaphragm assembly is located on a propagation path of the second modulated light beam;
the diaphragm assembly comprises a plurality of diaphragms, and the diaphragms and the modulation optical filters are arranged in a one-to-one correspondence manner;
the stepping motor is respectively connected with the plurality of diaphragms.
Optionally, the light source assembly comprises a xenon lamp, a parabolic reflector and a total reflector;
the xenon lamp is used for emitting light beams, and the parabolic reflector and the total reflector are sequentially located on a propagation path of the light beams.
Optionally, the mars surface spectrum simulator further includes a temperature control test platform, the temperature control test platform is located on a propagation path of the mars surface simulation light beam, and the temperature control test platform is used for bearing the mars spectrum solar cell to be tested.
Optionally, the mars surface spectrum simulator further includes a power supply and a control and data acquisition processing system, the power supply is connected to the light source assembly and the control and data acquisition processing system, and the control and data acquisition processing system is connected to the light source assembly.
According to the mars surface spectrum simulator provided by the embodiment of the invention, the light source assembly is arranged to emit light beams, the light uniformizing device comprises a plurality of discrete lens groups, the light beams with Gaussian distribution are divided into a plurality of light beams, the plurality of light beams are overlapped to form uniform light beams with high uniformity distribution, and the filter group is used for adjusting the spectrum of the uniform light beams so as to modulate the uniform light beams, so that the uniform light beams are uniformThe spectrum of the light beam and the spectrum of the surface of the Mars reach 3A in the wave band of 300 nm-1700 nm+The testing result is close to the actual performance output on the surface of the mars, the problem that the testing result of the solar cell for testing the surface of the mars by using the existing AM0 spectrum simulator is greatly different from the actual performance output on the surface of the mars is solved, and the testing accuracy of the solar cell for detecting the surface of the mars is improved.
Drawings
Fig. 1 is a schematic structural diagram of a mars surface spectrum simulator according to an embodiment of the present invention;
fig. 2 is a schematic partial structural diagram of a mars surface spectrum simulator according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a light homogenizer provided by an embodiment of the present invention;
fig. 4 is a schematic view illustrating a light spot formed by a light beam emitted from a light source assembly according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a uniform light beam emitted from a light homogenizer according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a partial structure of another Mars surface spectrum simulator provided in an embodiment of the present invention;
FIG. 7 is a schematic diagram of a spectrum of a Mars surface provided by an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a filter set according to an embodiment of the present invention;
fig. 9 is a schematic diagram of transmittance of a first junction filter according to an embodiment of the invention;
fig. 10 is a schematic diagram illustrating transmittance of a second junction filter according to an embodiment of the invention;
fig. 11 is a schematic diagram illustrating transmittance of a third junction filter according to an embodiment of the invention;
FIG. 12 is a schematic diagram of spectral slice adjustment provided by an embodiment of the present invention;
fig. 13 is a schematic diagram of transmittance of a first sub-filter according to an embodiment of the invention;
fig. 14 is a schematic diagram of transmittance of a second sub-filter according to an embodiment of the invention;
fig. 15 is a schematic partial structural diagram of another mars surface spectrum simulator according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a mars surface spectrum simulator according to an embodiment of the present invention, fig. 2 is a schematic partial structural diagram of the mars surface spectrum simulator according to the embodiment of the present invention, and fig. 3 is a schematic structural diagram of a light homogenizer according to the embodiment of the present invention, as shown in fig. 1 to 3, the mars surface spectrum simulator according to the embodiment of the present invention includes a light source assembly 10, a light homogenizer 11, and a filter set 12, the light source assembly 10 is configured to emit a light beam 20, the light homogenizer 11 and the filter set 12 are sequentially located on a propagation path of the light beam 20, the light homogenizer 11 includes a plurality of discrete lens groups 30 configured to divide the light beam 20 and emit a uniform light beam 21, and the filter set 12 is configured to adjust a spectrum of the uniform light beam 21 and emit a mars surface simulation light beam 22.
Therein, as shown in fig. 1-3, a light source assembly 10 emits a light beam 20 to provide a source of irradiance for a mars surface spectrum simulator.
With continued reference to fig. 1-3, the dodging device 11 includes a plurality of discrete lens groups 30 to split the beam 20 into a plurality of beams that are superimposed to form the uniform beam 21. Illustratively, as shown in fig. 3, taking the example that the dodging device 11 includes 19 discrete lens groups 30, the 19 discrete lens groups 30 divide the light beam 20 into 19 light beams, and the 19 light beams are superposed on the irradiation surface 41 to form a uniform light spot.
Fig. 4 is a schematic view of a light spot formed by a light beam emitted from a light source assembly according to an embodiment of the present invention, fig. 5 is a schematic view of a uniform light beam emitted from a light homogenizer according to an embodiment of the present invention, as shown in fig. 3 to 5, optionally, the discrete lens group 30 includes a field lens 31 and a projection lens 32, structures, relative apertures, focal lengths, thicknesses, and sizes of the field lens 31 and the projection lens 32 are the same, and the field lens 31 and the projection lens 32 are symmetrically disposed. Further, the field lens 31 and the projection lens 32 are each provided as a convex lens, the projection lens 32 is located at the focal point of the field lens 31, and the field lens 31 is located at the focal point of the projection lens 32. As shown in fig. 4, the light spots formed by the light beams 20 emitted from the light source assembly 10 have gaussian distribution and uneven illuminance distribution, the light beams 20 incident on the light homogenizer 11 are divided by the field lenses 31 of the plurality of discrete lens groups 30 to form a plurality of light beams, the plurality of light beams are imaged by the projection lenses 32 of the plurality of discrete lens groups 30 to form a uniform light beam 21, and as shown in fig. 3 and 5, the uniform light beam 21 forms light spots with high uniformity distribution on the irradiation surface 41, thereby realizing the homogenization of the light beams 20. In addition, the plurality of discrete lens groups 30 consisting of the field lens 31 and the projection lens 32 can also perform the collimation function, so that no additional collimation lens group is needed, and the complexity of the mars surface spectrum simulator is reduced.
With continued reference to fig. 1-3, the filter set 12 adjusts the spectrum of the uniform light beam 21 to modulate the uniform light beam 21, so that the spectrum of the uniform light beam 21 is similar to the spectrum of the surface of the mars, thereby forming a mars surface simulation light beam 22 with high uniformity distribution.
In summary, in the mars surface spectrum simulator provided in the embodiment of the present invention, the light source assembly 10 is arranged to emit the light beam 20, the dodging device 11 is arranged to include the plurality of discrete lens assemblies 30, the light beam 20 with gaussian distribution is divided into the plurality of light beams, the plurality of light beams are overlapped to form the uniform light beam 21 with high uniformity distribution, the filter set 12 is used to adjust the spectrum of the uniform light beam 21 to modulate the uniform light beam 21, so that the spectrum of the uniform light beam 21 is similar to the spectrum of the mars surface, thereby forming the mars surface simulation light beam 22 with high uniformity distribution The problem is that the test accuracy of the solar cell for Mars surface detection is improved.
Fig. 6 is a partial structural schematic diagram of another mars surface spectrum simulator provided in an embodiment of the present invention, as shown in fig. 6, and optionally, the plurality of discrete lens groups 30 includes a first discrete lens group 111 and a second discrete lens group 112, the uniform light beam 21 includes a first uniform light beam 211 and a second uniform light beam 212, the first discrete lens group 111 is used for converting the light beam 20 into the first uniform light beam 211, and the second discrete lens group 112 is used for converting the light beam 20 into the second uniform light beam 212. The filter set 12 includes an AM0 filter 121 and a plurality of modulation filters 122, the AM0 filter 121 is disposed in one-to-one correspondence with the first discrete lens group 111, the modulation filters 122 are disposed in one-to-one correspondence with the second discrete lens group 112, the mars surface simulation light beam 22 includes a first modulated light beam 221 and a second modulated light beam 222, the AM0 filter 121 is configured to modulate the spectrum of the first uniform light beam 211 and emit the first modulated light beam 221, and the modulation filters 122 are configured to modulate the spectrum of the second uniform light beam 212 and emit the second modulated light beam 222.
Specifically, as shown in fig. 6, the plurality of discrete lens groups 30 include a first discrete lens group 111 and a second discrete lens group 112, and the filter set 12 includes an AM0 filter 121 and a plurality of modulation filters 122. The first discrete lens group 111 converts the light beam 20 into a first uniform light beam 211, the AM0 filter 121 is located on the propagation path of the first uniform light beam 211, and the AM0 filter 121 filters the spectrum of the first uniform light beam 211 and emits a first modulated light beam 221, so that the spectrum of the first modulated light beam 221 is close to the solar spectrum outside the atmospheric space. The second discrete lens group 112 converts the light beam 20 into a second uniform light beam 212, the modulation filter 122 is located on a propagation path of the second uniform light beam 212, the modulation filter 122 filters a spectrum of the second uniform light beam 212, emits a second modulated light beam 222, and superimposes the spectrum of the first modulated light beam 221 as a basic spectrum with the second modulated light beam 222 to form the mars surface simulation light beam 22, so that the spectrum of the mars surface simulation light beam 22 is similar to the spectrum of the mars surface.
Fig. 7 is a schematic diagram of a spectrum of a Mars surface according to an embodiment of the present invention, as shown in fig. 7, AM0 represents a solar spectrum outside an atmospheric space, and t0.2mars30, t0.5mars30, t1Mars30, t1.5mars30, and t2Mars30 represent spectrums of Mars surface suspended dust with different particle sizes, respectively, where the larger the number behind t is, the larger the particle size of the Mars surface suspended dust is, as can be seen from fig. 7, the different particle sizes of the Mars surface suspended dust cause different absorption and scattering of sunlight, and thus, the light intensity and spectrum of the Mars surface also change. In this embodiment, according to the test requirement of the mars spectrum solar cell to be tested, the spectrum of the first modulated light beam 221 is adjusted to be similar to the AM0 solar spectrum through the AM0 optical filter 121, so as to serve as a basic spectrum, the spectrum of the second modulated light beam 222 is adjusted through the modulated optical filter 122, the first modulated light beam 221 is overlapped with the second modulated light beam 222 to form the mars surface simulation light beam 22, the spectrum of the mars surface simulation light beam 22 is respectively similar to the spectrum of the mars surface when the particle sizes of the mars surface suspended dust are different, the simulation of the mars surface spectrum when the particle sizes of the mars surface suspended dust are different is realized, the environment light conditions when the particle sizes of the mars surface suspended dust are different are simulated, and the mars spectrum solar cell to be tested is tested in an all.
With continued reference to fig. 6, optionally, a plurality of second discrete lens groups 112 are disposed around the plurality of first discrete lens groups 111, and a plurality of modulation filters 122 are disposed around the plurality of AM0 filters 121.
As shown in fig. 6, the first discrete lens group 111 located in the central portion of the dodging device 11 converts the light beam 20 into a first uniform light beam 211, the AM0 filter 121 located in the central portion of the filter group 12 filters the first uniform light beam 211, and emits a first modulated light beam 221 subjected to spectral modulation, so that the first modulated light beam 221 serves as a basic spectrum of the mars surface spectrum simulator. The second discrete lens group 112 disposed around the plurality of first discrete lens groups 111 converts the light beam 20 into a second uniform light beam 212, and the modulation filter 122 surrounding the plurality of AM0 filters the second uniform light beam 212 to emit a second modulated light beam 221 that is spectrally modulated, thereby superimposing the second modulated light beam 221 on the basis of the first modulated light beam 221 to form a mars surface simulation light beam 22 whose spectrum is similar to that of the mars surface.
Fig. 8 is a schematic structural diagram of a filter set according to an embodiment of the present invention, fig. 9 is a schematic transmittance diagram of a first junction filter according to an embodiment of the present invention, fig. 10 is a schematic transmittance diagram of a second junction filter according to an embodiment of the present invention, fig. 11 is a schematic transmittance diagram of a third junction filter according to an embodiment of the present invention, fig. 12 is a schematic diagram of a spectrum segmentation adjustment according to an embodiment of the present invention, as shown in fig. 8-12, optionally, the plurality of modulation filters 122 include a first junction filter 51, a second junction filter 52, and a third junction filter 53, a transmission wavelength range of the first junction filter 51 is 300nm to 700nm, a transmission wavelength range of the second junction filter 52 is 700nm to 850nm, and a transmission wavelength range of the third junction filter 53 is 900nm to 1700 nm.
As shown in fig. 8 to 12, the plurality of modulation filters 122 are arranged to include a first junction filter 51, a second junction filter 52, and a third junction filter 53, the first junction filter 51, the second junction filter 52, and the third junction filter 53 respectively convert the second uniform light beam 212 with the spectrum of S1 into a first junction component with the spectrum of S2, a second junction component with the spectrum of S3, and a third junction component with the spectrum of S4, and the first junction component, the second junction component, and the third junction component are superimposed to form a second modulation light beam 222, and further the second modulation light beam 221 is superimposed on the basis of the first modulation light beam 221 to form the mars surface simulated light beam 22 with the spectrum of S5. The spectrum is adjusted in a segmented mode by adjusting the number of the first junction component, the second junction component and the third junction component respectively, and therefore the adjusting difficulty of the spectrum is reduced.
In addition, the transmission wavelength range of the first junction filter 51 is 300 nm-700 nm, the transmission wavelength range of the second junction filter 52 is 700 nm-850 nm, the transmission wavelength range of the third junction filter 53 is 900 nm-1700 nm, the three wavelength ranges correspond to a first adjustable part, a second adjustable part and a third adjustable part of the triple-junction gallium arsenide solar cell, spectra in the three wavelength ranges are respectively adjusted, and the Mars surface spectrum simulator is suitable for testing the triple-junction gallium arsenide solar cell.
It should be noted that, in the above embodiment, the mars surface spectrum simulator is only used for testing the triple junction gaas solar cell as an example, in other embodiments, the adjustment of the spectrum in sections and the wavelength range of each section of the spectrum may be adjusted according to the solar cell to be tested, for example, if the solar cell to be tested is a quadruple junction photovoltaic cell, the plurality of modulation filters 122 include a first junction filter, a second junction filter, a third junction filter and a fourth junction filter, which respectively correspond to the first adjustable part, the second adjustable part, the third adjustable part and the fourth adjustable part of the quadruple junction photovoltaic cell, the transmission wavelength ranges of the first junction filter, the second junction filter, the third junction filter and the fourth junction filter may also be adjusted according to the absorption wavelength ranges of the first adjustable part, the second adjustable part, the third adjustable part and the fourth adjustable part of the quadruple junction photovoltaic cell, the embodiment of the present invention is not limited thereto.
Fig. 13 is a schematic diagram of transmittance of a first sub-filter provided in the embodiment of the present invention, and fig. 14 is a schematic diagram of transmittance of a second sub-filter provided in the embodiment of the present invention, as shown in fig. 8 to 14, optionally, the second junction filter 52 includes a first sub-filter and a second sub-filter (not shown in the figure), the first sub-filter and the second sub-filter are stacked along the propagation direction of the second uniform light beam 212, the transmission wavelength range of the first sub-filter is 700nm to 1100nm, and the transmission wavelength range of the second sub-filter is 400nm to 850 nm.
As shown in fig. 13 and 14, the first sub-filter with a transmission wavelength range of 700nm to 1100nm and the second sub-filter with a transmission wavelength range of 400nm to 850nm are stacked to realize the transmission wavelength range of 700nm to 850nm of the second junction filter 52, so that the difficulty of the manufacturing process of the second junction filter 52 can be reduced, and the second junction filter 52 can be realized more easily.
With continued reference to fig. 6 and 8, the plurality of discrete lens groups 30 includes 7 first discrete lens groups 111 and 12 second discrete lens groups 112, the 12 second discrete lens groups 112 being disposed around the 7 first discrete lens groups 111. The filter set 12 includes 7 AM0 filters 121 and 12 modulation filters 122, and the 12 modulation filters 122 are disposed around the 7 AM0 filters 121. The 12 modulation filters 122 include 4 first junction filters 51, 4 second junction filters 52, and 4 third junction filters 53, and the first junction filters 51, the second junction filters 52, and the third junction filters 53 are alternately arranged.
Specifically, as shown in fig. 6 and 8, the dodging device 11 is provided to include 19 discrete lens groups 30 to divide the light beam 20 into 19 light beams, the 19 discrete lens groups 30 include 7 first discrete lens groups 111 and 12 second discrete lens groups 112, and the second discrete lens groups 112 are provided at the periphery of the 7 first discrete lens groups 111 to divide the 19 light beams into 7 first uniform light beams 211 and 12 second uniform light beams 212. Filter set 12 includes 7 AM0 filters 121 and 12 modulation filters 122, and the 12 modulation filters 122 are disposed around the 7 AM0 filters 121 to convert the 7 first uniform light beams 211 into 7 first modulated light beams 221 and 12 second modulated light beams. The 12 modulation filters 122 are divided into three groups, each group of modulation filters 122 respectively comprises 4 first junction filters 51, 4 second junction filters 52 and 4 third junction filters 53, so that the 12 second modulation light beams are divided into 4 first junction components, 4 second junction components and 4 third junction components, and the segmented adjustment of the spectrum is realized by respectively modulating the first junction components, the second junction components and the third junction components.
Wherein, if the number of the discrete lens groups 30 is too large, the complexity of spectrum adjustment is increased; if the number of discrete lens groups 30 is too small, the uniformity of the uniform beam 21 is reduced. Therefore, in the present embodiment, by arranging the dodging device 11 to include 19 discrete lens groups 30, and the 19 discrete lens groups 30 to include 7 first discrete lens groups 111 and 12 second discrete lens groups 112, and correspondingly arranging 7 AM0 filters 121 and 12 modulation filters 122, the uniformity of the uniform light beam 21 is ensured without excessively complicating the adjustment of the spectrum.
With reference to fig. 8, the first junction filter 51, the second junction filter 52, and the third junction filter 53 are arranged alternately, so that the first junction filter 51, the second junction filter 52, and the third junction filter 53 are uniformly distributed on the peripheries of the 7 AM0 filters 121, which is helpful to improve the uniformity of spectrum adjustment.
Fig. 15 is a schematic partial structure diagram of another spark surface spectrum simulator according to an embodiment of the present invention, and optionally, the spark surface spectrum simulator according to an embodiment of the present invention further includes an aperture assembly 13 and a stepping motor 14, the aperture assembly 13 is located on a propagation path of the second modulated light beam 222, the aperture assembly 13 includes a plurality of apertures 131, the apertures 131 and the modulation filters 122 are arranged in a one-to-one correspondence, and the stepping motor 14 is connected to the plurality of apertures 131 respectively.
Exemplarily, as shown in fig. 15, the dodging channels 1 to 12 represent 12 second discrete lens groups 112, the modulation filters 122 are disposed in one-to-one correspondence with the second discrete lens groups 112, each modulation filter 122 is disposed with an aperture 131 corresponding to the modulation filter 122, the aperture 131 is connected to the stepping motor 14, so that the aperture 131 can be opened or closed under the control of the stepping motor 14, thereby increasing or decreasing the luminous fluxes of the corresponding first, second, and third junction components, wherein when the aperture 131 is gradually closed, the light output including the junction component is turned off, and the spectral component of the junction is decreased; when the diaphragm 131 is gradually opened, the light output containing the junction component is gradually released, and the spectral component of the junction is increased, so that the junction component is increased and decreased through the matching combination of the diaphragm assembly 13 and the modulation filter 122, and the spectrum and the light intensity of the first modulated light beam 222 are finely adjusted, thereby realizing the simulation of the spectrum of the mars surface.
It should be noted that, in other embodiments, a person skilled in the art may also adjust the respective junction components by other ways, for example, by adjusting the optical thickness of the modulation filter 122, or by adjusting the number of stacked modulation filters 122, and the like, which is not limited in this embodiment of the invention.
With continued reference to fig. 1, optionally, the light source assembly 10 includes a xenon lamp 101, a parabolic mirror 102 and a total reflection mirror 103, the xenon lamp 101 being used to emit the light beam 20, the parabolic mirror 102 and the total reflection mirror 103 being located in turn on the propagation path of the light beam 20.
As shown in fig. 1, a xenon lamp 101 is used as a radiation source, which can provide high-brightness stable illumination for a mars surface spectrum simulator, and the spectrum of a light beam 20 emitted from the xenon lamp 101 is close to the solar spectrum, which is helpful for improving the utilization rate of the light source. The parabolic reflector 102 reflects part of the light beam 20 emitted from the xenon lamp 101 to improve the utilization rate of the light source, and the parabolic reflector 102 can also perform the collimation function. The total reflection mirror 103 totally reflects the light beam 20, so as to change the propagation direction of the light beam 20, so that the light beam 20 emitted from the xenon lamp 101 propagates to the light homogenizer 11 at a proper angle. The number and the position of the total reflection mirror 103 can be designed according to actual requirements, which is not limited in the embodiment of the present invention.
In addition, with reference to fig. 1, optionally, the light source module 10 further includes a case 15, where the case 15 is configured to accommodate the xenon lamp 101, the parabolic reflector 102 and the total reflection mirror 103, so as to protect and fix the xenon lamp 101, the parabolic reflector 102 and the total reflection mirror 103, prevent the positions of the xenon lamp 101, the parabolic reflector 102 and the total reflection mirror 103 from being affected by the external environment, and improve the reliability of the light source module 10.
With reference to fig. 1, optionally, the mars surface spectrum simulator provided in the embodiment of the present invention further includes a temperature control test platform 16, where the temperature control test platform 16 is located on a propagation path of the mars surface simulation light beam 22, and the temperature control test platform 16 is used to carry a mars spectrum solar cell to be tested.
As shown in fig. 1, the temperature control test platform 16 is used for placing a mars spectrum solar cell to be tested (not shown in the figure), so that the mars spectrum solar cell to be tested is tested by making the mars surface simulation light beam 22 irradiate the mars spectrum solar cell to be tested. The temperature control test platform 16 can regulate and control the temperature of the Mars spectrum solar cell to be tested placed on the temperature control test platform, so as to ensure that the temperature of the Mars spectrum solar cell to be tested is constant, and improve the test accuracy; in addition, the performance of the Mars spectrum solar cell to be tested under different temperature conditions can be tested by performing gradient adjustment on the temperature of the Mars spectrum solar cell to be tested, and the Mars spectrum solar cell to be tested can be set by a person skilled in the art according to actual requirements.
In addition, with continuing reference to fig. 1, optionally, the mars surface spectrum simulator further includes a reflector 17, where the reflector 17 is located on a propagation path of the mars surface simulation light beam 22, and is configured to reflect the mars surface simulation light beam 22 to the mars spectrum solar cell to be tested, so as to implement a performance test of the mars spectrum solar cell to be tested under the irradiation of the mars surface simulation light beam 22.
With reference to fig. 1, optionally, the mars surface spectrum simulator further includes a power supply 18 and a control and data acquisition and processing system 19, where the power supply 18 is connected to the light source assembly 10 and the control and data acquisition and processing system 19, respectively, and the control and data acquisition and processing system 19 is connected to the light source assembly 10.
The power supply 18 may include a regulated power supply and a transformer to provide a regulated Direct Current (DC) power supply for the light source module 10, so as to ensure that the light source module 10 can provide a stable irradiation source. The control and data acquisition processing system 19 is connected to the light source assembly 10 to control the activation of the light source assembly 10.
With continued reference to fig. 1, the control and data acquisition processing system 19 is further connected to the power supply 18 to achieve functions such as monitoring, interlocking, light intensity feedback, etc., for example, the light sensor acquires the light intensity of the light beam 20 emitted from the light source module 10 and feeds the light intensity back to the control and data acquisition processing system 19, and the control and data acquisition processing system 19 adjusts the output power of the power supply 18 according to the light intensity, so as to ensure the stability of the output of the light source module 10.
In other embodiments, the control and data acquisition and processing system 19 may also be connected to the stepping motor 14 to realize automatic adjustment of the spectrum of the mars surface simulation light beam 22, and a person skilled in the art may set each functional module of the mars surface spectrum simulator according to actual requirements, which is not limited in the embodiment of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A Mars surface spectrum simulator is characterized by comprising a light source component, a light uniformizing device and a filter set;
the light source component is used for emitting light beams; the light homogenizer and the filter set are sequentially positioned on the propagation path of the light beam;
the light uniformizer comprises a plurality of discrete lens groups and is used for dividing the light beam and emitting a uniform light beam;
the filter set is used for adjusting the spectrum of the uniform light beam and emitting a Mars surface simulation light beam.
2. The Mars surface spectrum simulator of claim 1,
the plurality of discrete lens groups comprises a plurality of first discrete lens groups and a plurality of second discrete lens groups, the uniform beam comprises a first uniform beam and a second uniform beam, the first discrete lens groups are used for converting the beam into the first uniform beam, and the second discrete lens groups are used for converting the beam into the second uniform beam;
the filter set comprises a plurality of AM0 filters and a plurality of modulation filters, the AM0 filters are arranged in one-to-one correspondence with the first discrete lens group, and the modulation filters are arranged in one-to-one correspondence with the second discrete lens group;
the Mars surface simulation light beams comprise a first modulation light beam and a second modulation light beam, and the AM0 optical filter is used for modulating the spectrum of the first uniform light beam and emitting the first modulation light beam; the modulation optical filter is used for modulating the spectrum of the second uniform light beam and emitting the second modulated light beam.
3. The Mars surface spectrum simulator of claim 2,
a plurality of the second discrete lens groups disposed around a plurality of the first discrete lens groups; a plurality of the modulation filters are disposed around a plurality of the AM0 filters.
4. The Mars surface spectrum simulator of claim 2,
the plurality of modulation filters comprise a first junction filter, a second junction filter and a third junction filter;
the transmission wavelength range of the first junction filter is 300 nm-700 nm, the transmission wavelength range of the second junction filter is 700 nm-850 nm, and the transmission wavelength range of the third junction filter is 900 nm-1700 nm.
5. The Mars surface spectrum simulator of claim 4,
the second junction optical filter comprises a first sub optical filter and a second sub optical filter, the first sub optical filter and the second sub optical filter are arranged in a stacked mode along the transmission direction of the second uniform light beam, the transmission wavelength range of the first sub optical filter is 700 nm-1100 nm, and the transmission wavelength range of the second sub optical filter is 400 nm-850 nm.
6. The Mars surface spectrum simulator of claim 4,
the plurality of discrete lens groups includes 7 of the first discrete lens groups and 12 of the second discrete lens groups, the 12 of the second discrete lens groups being disposed around the 7 of the first discrete lens groups; the filter set comprises 7 of the AM0 filters and 12 of the modulation filters, the 12 of the modulation filters being disposed around the 7 of the AM0 filters;
the 12 modulation filters include 4 first junction filters, 4 second junction filters and 4 third junction filters, and the first junction filters, the second junction filters and the third junction filters are alternately arranged.
7. The Mars surface spectrum simulator of claim 2,
the Mars surface spectrum simulator also comprises a diaphragm assembly and a stepping motor, wherein the diaphragm assembly is positioned on the propagation path of the second modulation light beam;
the diaphragm assembly comprises a plurality of diaphragms, and the diaphragms and the modulation optical filters are arranged in a one-to-one correspondence manner;
the stepping motor is respectively connected with the plurality of diaphragms.
8. The Mars surface spectrum simulator of claim 1,
the light source component comprises a xenon lamp, a parabolic reflector and a total reflector;
the xenon lamp is used for emitting light beams, and the parabolic reflector and the total reflector are sequentially located on a propagation path of the light beams.
9. The Mars surface spectrum simulator of claim 1,
the Mars surface spectrum simulator also comprises a temperature control test platform, wherein the temperature control test platform is positioned on the propagation path of the Mars surface simulation light beam and is used for bearing the Mars spectrum solar cell to be tested.
10. The Mars surface spectrum simulator of claim 1,
the Mars surface spectrum simulator also comprises a power supply and a control and data acquisition processing system, wherein the power supply is respectively connected with the light source assembly and the control and data acquisition processing system, and the control and data acquisition processing system is connected with the light source assembly.
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| CN202110367565.3A CN113054909A (en) | 2021-04-06 | 2021-04-06 | Mars surface spectrum simulator |
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| CN202110367565.3A CN113054909A (en) | 2021-04-06 | 2021-04-06 | Mars surface spectrum simulator |
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