【摘要】 分析了狭缝光源宽度对棱镜光谱仪谱线的半角宽度和色分辨本领的影响,修正了棱镜的色分辨本领公式,提出了实验情况下选择缝光源宽度的参考依据,并以实例讨论了分辨本领随缝光源宽度变化的关系.更多还原

【Abstract】 In this article, the influences on the spectral line’s half-angle width and chromatic resolving power are analyzed when the width of the slit resouce in the prism spectrum instrument can not be ignored and the formula of chromatic resolving power is revised. Meanwhile a reference principle of how to choose the width of the slit resource in laboratory is intrduced, and the relationship in a prism spctrum instrument between the width of slit resouce and the chromatic resolving power is showed by practical datum.更多还原