金卤灯太阳模拟设备中滤光片的设计

DESIGN OF FILTER IN SOLAR SIMULATION EQUIPMENT OF METAL HALIDE LAMP

本文主要研究了一种采用金卤灯作为模拟太阳光源时太阳模拟设备中滤光片的设计方法。首先论述了模拟太阳光源的相对光谱辐照度比例及其光谱匹配度的计算过程。然后,根据金卤灯光谱的相对光谱辐照度比例分布,分析了滤光片的设计方法,并给出了其设计透射率曲线;计算了金卤灯光源结合滤光片后在不同波段的光谱匹配度,结果显示,光谱匹配度等级均达到了A级;对于大尺寸滤光片,为保证金卤灯光谱在不同波段的光谱匹配度等级均达到A级标准要求,滤光片的透射率曲线偏移量应控制在±10 nm范围内。最后,通过使用2000 W金卤灯结合本设计滤光片进行实际验证,最终整体光谱在各波段的光谱匹配度等级均达到了A级标准。

This paper mainly studies a design method of filter in the solar simulation equipment when the metal halide lamp is used as the simulated solar light source.Firstly,the calculation process of relative spectral irradiance and spectral matching degree of simulated solar light source is discussed.Then,according to the distribution of relative spectral irradiance proportion of metal halide lamp spectrum,the design method of filter is analyzed,and filter’s design transmittance curve is given.Calculate the spectral matching degree of different bands after the metal halide lamp light source is combined with the filter,the results show that the spectral matching degree grade reaches A-level.For large-size filters,in order to ensure that the spectral matching degree grade of the metal halide lamp spectrum in different bands light source meet the requirements of A level standard,the deviation of the transmittance curve of the filter shall be controlledwithin±10 nm.Finally,the actual verification is carried out by using 2000 W metal halide lamp combined with the filter designed in this paper,the spectral matching degree grade of the overall spectrum in each band has reached the A-level standard.