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| Solar Spectral Distribution in Solar Radiation Test Standard |
| Received:July 07, 2017 Revised:December 15, 2017 |
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| DOI：10.7643/ issn.1672-9242.2017.12.013 |
| KeyWord:CIE NO.20 CIE NO.85 solar radiation test solar spectra |
| Author | Institution |
| ZHAO Li-hua |
No.59 Institute of China Ordnance Industry, Chongqing , China |
| TANG Qi-huan |
No.59 Institute of China Ordnance Industry, Chongqing , China |
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| Abstract: |
| Objective To provide basis for correct selection of the solar spectrum in amendment of radiation test standard for the sun and light aging test standard. Methods By analyzing CIE NO.20, CIE NO.85 between two publications of solar radiation spectrum characteristics, this paper probed into this issue from the following five aspects: error statistics of these two kinds of solar irradiance spectral bandwidth; analysis of the relative quality of air, ozone and water, cloud optical thickness, surface reflectance and other factors on the impact of solar spectral irradiance; characteristic analysis of spectral distribution of the light source and the difference between them and the artificial radiation, the solar radiation spectrum; analysis of current requirements of light aging test standard of spectral irradiance tolerance; introduction to result comparability of two light aging tests. Results CIE NO.85 spectrum was more accurate and more detailed, but its wavelength range was narrow; the difference between two spectral irradiance was very small. The spectral irradiance could be prevented from reaching the ground by many factors in the atmospheric environment. The error of light aging test standard of spectral irradiance tolerance and the solar spectrum was far greater than two the solar radiation spectrum of the error between the publications. The wavelength coverage of solar spectrum required by the standard was wider than that of CIE NO.85. Conclusion CIE NO.20 spectrum might be selected as the solar radiation spectrum in amendment of radiation test standard for the sun and light aging test standard. |
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