摘要
新型真空紫外光谱仪是采用棱镜与中阶梯光栅的组合进行交叉色散、二维CCD作为接收器件的新型光谱仪.针对该类型的光谱仪光学系统特点,建立了一种基于物理解析的波长标定数学模型,并利用遗传算法对该数学模型的参数进行了优化,通过比较、分析优化前后的结果,参数优化后的模型在两个色散方向上的误差均为2像素,明显小于光谱仪本身6像素的最大分辨率,可满足仪器进行光谱分析时的要求.
The new-type vacuum UV spectrograph which uses prism and echelle for cross-dispersion and charge transfer detector has a wide prospect in many technical and scientific fields due to its full spectrum, high reproducibility and good resolution. A wavelength calibrating model which for the new-type spectrograph is set up, and the parameters of this model are optimized through use of genetic arithmetic. The optimal results show that the optimized model can match the image of experiment preferably, and that the optimization of the wavelength calibrating model is effective.
