Characterization of spectral irradiance system based on a filter radiometer

8th Brazilian Congress on Metrology

Lima, M.S.^1 ; Silva, T.F.^1 ; Duarte, I.^1 ; Correa, J.S.^1 ; Viana, D.^1 ; Sousa, W.A.^1 ; Almeida, G.B.^1 ; Couceiro, I.B.^1

Optical Metrology Division, National Institute of Metrology, Quality and Technology - Inmetro, Av. N. S. das Graçãs, 50, Duque de Caxias, Xerém

RJ

25250-020, Brazil^1

关键词: Experimental system;    Filter radiometers;    Spectral irradiance;    Uncertainty budget;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/733/1/012037/pdf
DOI  :  10.1088/1742-6596/733/1/012037

来源: IOP

【 摘 要 】

The spectral irradiance scale has been realized recently. It is based on a filter radiometer that was mounted and characterized. The optical system was assembled and the procedures of the methodology were defined, including the mounting of FEL lamp jig, alignment of the optical system, calibration of the instruments and optical devices used on the experimental system. The main uncertainty components were evaluated and the preliminary uncertainty budget of the spectral irradiance system is presented.