Photometer for testing optical performance of protective coating of solar battery on site
A technology of solar cells and protective coatings, applied in the field of photometers, can solve the problems of inability to perform in-situ testing, large structure, high cost, etc., and achieve the effects of light weight, small size and simple measurement
Inactive Publication Date: 2012-05-23
BEIHANG UNIV
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Problems solved by technology
[0004] The purpose of the present invention is to provide a photometer for in-situ testing of the optical properties of solar cell protective coatings, to overcome the problems of the existing optical performance testing systems of protective coatings with large structure, high cost, and inability to perform in-situ testing. Insufficient, build an in-situ test instrument for coating optical properties with simple measurement, high precision, and no movable devices
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[0018] Such as figure 1 As shown, the present invention includes a housing 1, a radiation-proof glass cover 2, a solar cell protective coating 3, a glass cover fixing member 4, and a triple junction of gallium indium phosphide / gallium arsenide / germanium (GaInP / GaAs / Ge) Solar cell 5, thin-film heat detector 6, data acquisition base 7, wherein housing 1 loads and protects other devices; Fix the radiation-proof glass cover 2 coated with solar cell protective coating 3 with glass cover holder 4, They form the measurement channel with the three-junction solar cell 5; the radiation-proof glass cover 2 fixed with the glass cover holder 4 and the three-junction solar cell 5 form the reference channel; the thin film heat detector 6 is close to the sun of the reference channel The side of the battery 5; the data acquisition base 7 has a built-in signal acquisition board.
[0019] The protective coating 3 to be tested is coated on the cover glass 2 in the measurement channel, so the cha...
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The invention relates to a photometer for testing the optical performance of a protective coating of a solar battery in site. The photometer is composed of a shell, a measuring channel, a reference channel, a heat detector and a data collecting base, wherein the shell loads and protects all components; the measuring channel is composed of an anti-radiation glass cover sheet coated with the protective coating and the three-node solar battery, and the reference channel is also composed of the anti-radiation glass cover sheet and the three-node solar battery; the heat detector which is particularly a film heat detector is arranged at the side edge of the solar battery of the reference channel, and a signal collecting board card is arranged in the data collecting base. After receiving irradiation of a simulated space environment, the protective coating can separate the coupling impact of the degradation of both the coating and the solar battery by combining a calibrated damage characteristic curve of the solar battery according to the changing of output power of the two channels, thereby calculating the changing of the optical performance of the coating. With simple structure, small time constant and high testing precision, the photometer can realize the in-site testing of the optical performance of the protective coating in the simulated space environment.
Description
technical field [0001] The invention relates to a photometer for in-situ testing of the optical properties of a solar cell protective coating, which belongs to the field of space radiation ground simulation testing of aerospace optical coatings. Background technique [0002] Compared with traditional silicon solar cells and III-V compound solar cells, thin-film solar cells have the advantages of high power-to-mass ratio, rollability, and high radiation resistance. In order to match the characteristics of thin-film solar cells, a new type of optical coating replaces the traditional glass cover as the protective layer of thin-film solar cells. The thin-film solar cells and optical protective coatings of the spacecraft will be subjected to various environmental factors such as atomic oxygen, solar electromagnetic radiation, ionosphere, Earth’s radiation belts, solar cosmic rays, and plasma during their in-orbit service. The degradation of the optical properties of the coating ...
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IPC IPC(8): G01N21/59
Inventor 赵慧洁张颖唐吾邢辉张庆祥王立
Owner BEIHANG UNIV