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在棱镜摄谱实验中,因仪器设备的限制,对光谱进行分析时,传统的方法是将摄好的光谱底片放置于读数显微镜(或比长仪)的载物台,从显微镜的目镜中观察底片,并拿标准的电弧铁谱图与之作比较,以确定待测谱线及其相邻两条比较谱线在铁谱图上的位置及波长值。由于显微镜目镜的视场很小,当观察者的视线离开目镜后,对所观察到的谱线位置及粗细等特征,无法准确回忆,以至于对比电弧铁谱图查找时,倍感困难,极易出错。现介绍一种利用现有的简单仪器解决这一问题的方法。
In prism imaging experiments, the traditional method for analyzing spectra due to the limitations of instrumentation is to place the picked spectral plate on a stage of a reading microscope (or a specific length meter) as viewed from the eyepiece of the microscope The film, and take the standard arc of the iron spectrum with the comparison to determine the line to be measured and its adjacent two comparative lines in the iron spectrum on the position and wavelength values. Due to the small field of view of the microscope eyepiece, when the observer’s line of sight leaves the eyepiece, the characteristics of the observed line position and thickness can not be accurately recalled so that it is more difficult to find the comparison of the iron-iron spectrum, Error-prone Here is a way to solve this problem using existing simple instruments.