Stability study of standards used for calibration of the spectrophotometer wavelength scale

8th Brazilian Congress on Metrology

Debossan, L.F.^1 ; Carvalho, E.M.S.^1 ; Souza, M.A.^1 ; Gomes, J.F.S.^1

Laboratório de Radiometria e Fotometria, Divisão de Metrologia Óptica, Inmetro, Av. Nossa Senhora das Graças, 50, Xerém, Duque de Caxias

RJ, Brazil^1

关键词: Holmium oxide;    International standards;    Intrinsic property;    Reference standard;    Stability study;    Wavelength scale;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/733/1/012026/pdf
DOI  :  10.1088/1742-6596/733/1/012026

来源: IOP

【 摘 要 】

The calibration of spectrophotometers is a procedure recommended by international standards to provide quality assurance of results and traceability. Due to its intrinsic properties, holmium oxide filters are indicated as reference standards for calibrating the wavelength scale of such equipment. This paper presents a study aiming to assess the repeatability and drift of holmium oxide standard filters calibrated in the Radiometry and Photometry Laboratory (Laraf) of Inmetro in order to verify their stability.