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限于常规汞灯谱线法波长定标的局限性,构建了紫外辐射计波长定标装置,研究了紫外辐射计波长定标的物理过程和测量链,并对紫外辐射计中臭氧十二个吸收波长进行了光谱定标,通过对定标影响量的分析和计算,得到定标影响量的测量不确定度和波长定标合成标准不确定度,其中波长定标合成标准不确定度为0.026nm,同时通过光学CAD分析和实验验证紫外辐射计的光谱带宽可以达到1.0nm。应用自行构建的紫外波长定标装置较好地完成了紫外辐射计臭氧吸收谱线的定标工作,满足了臭氧反演所需的波长精度要求和光谱带宽要求。
Due to the limitation of wavelength calibration of conventional mercury lamp spectroscopy, a wavelength calibration device of ultraviolet radiometer was established. The physical process and measurement chain of wavelength calibration of ultraviolet radiometer were studied. Twelve absorptions of ozone in ultraviolet radiometer Wavelength spectral calibration, through the analysis and calculation of the amount of calibration impact, the measurement uncertainty of calibration and the standard uncertainty of the wavelength calibration standard are obtained. The standard uncertainty of the wavelength calibration standard is 0.026nm , At the same time through the optical CAD analysis and experimental verification UVR meter spectral bandwidth can reach 1.0nm. The calibration of the UV absorption line of the UV radiometer has been completed by using the UV wavelength calibration device built by itself, which meets the wavelength accuracy requirement and spectral bandwidth requirement of ozone inversion.