光栅单色仪的波长标定实验研究
Jiliang Xuebao/Acta Metrologica Sinica（2007）
Abstract
采用具有线光谱的氖灯和汞灯的谱线为波长标准,研究精密双光栅单色仪的波长特性.进行了波长标定、重复性和稳定性实验,重复性为0.005 nm,稳定性为0.035 nm.给出了相同缝宽设置下波长标定的不确定度评定.实验结果表明,被标定单色仪的波长修正值与波长基本上呈线性关系,并由此确定线性拟合方程.发现单色仪波长误差与狭缝宽度设置有关,对精密测量有不可忽略的影响.
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Key words
Grating monochrometer,Metrology,Repeatability,Uncertainty,Wavelength calibration
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