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Monochromator-based absolute calibration of a standard radiation thermometer

AuthorsMantilla, J. M.; Hernanz, María Luisa CSIC ORCID CVN; Campos Acosta, Joaquín CSIC ORCID ; Martín, M. J.; Pons Aglio, Alicia CSIC ORCID; Campo, D. del
KeywordsRadiance method
Standard radiation thermometer
Absolute radiometry
Issue Date6-Apr-2014
CitationInternational Journal of Thermophysics 35: 493- 503 (2014)
AbstractCentro Español de Metrología (CEM) is disseminating the International Temperature Scale (ITS-90), at high temperatures, by using the fixed points of Ag and Cu and a standard radiation thermometer. However, the future mise-en-pratique for the definition of the kelvin (MeP-K) will include the dissemination of the kelvin by primary methods and by indirect approximations capable of exceptionally low uncertainties or increased reliability. Primary radiometry is, at present, able to achieve uncertainties competitive with the ITS-90 above the silver point with one of the possible techniques the calibration for radiance responsivity of an imaging radiometer (radiance method). In order to carry out this calibration, IO-CSIC (Spanish Designated Institute for luminous intensity and luminous flux) has collaborated with CEM, allowing traceability to its cryogenic radiometer. A monochromator integrating spherebased spectral comparator facility has been used to calibrate one of the CEM standard radiation thermometers. The absolute calibrated standard radiation thermometer has been used to determine the temperatures of the fixed points of Cu, Co–C, Pt–C, and Re–C. The results obtained are 1357.80 K, 1597.10 K, 2011.66 K, and 2747.64 K, respectively, with uncertainties ranging from 0.4 K to 1.1 K. © Springer Science+Business Media New York 2014
Description11 pags.; 4 figs.; 3 tabs.
Publisher version (URL)http://dx.doi.org/10.1007/s10765-014-1589-1
Identifiersdoi: 10.1007/s10765-014-1589-1
issn: 0195-928X
Appears in Collections:(CFMAC-IO) Artículos
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