Sun Y C, Huang C, Xia G, Jin S Q, Lu H B
J Opt Soc Am A Opt Image Sci Vis. 2017 Apr 1;34(4):498-505. doi: 10.1364/JOSAA.34.000498.
Wavelength calibration is an important step in charge-coupled device (CCD) spectrometers. In this paper, an accurate calibration method is proposed. A model of a line profile spectrum is built at the beginning, followed by noise reduction, bandwidth correction, and automatic peak-seeking treatment. Experimental tests are conducted on the USB4000 spectrometer with a mercury-argon calibration light source. Compared with the traditional method, the results show that this wavelength calibration procedure obtains higher accuracy and the deviations are within 0.1 nm.
波长校准是电荷耦合器件（CCD）光谱仪中的重要步骤。本文提出了一种精确的校准方法。首先建立线轮廓光谱模型，然后进行降噪、带宽校正和自动寻峰处理。使用汞氩校准光源在USB4000光谱仪上进行了实验测试。与传统方法相比，结果表明该校准程序具有更高的精度，偏差在0.1nm以内。
