J L Gardner 2006 Metrologia 43 403 doi:10.1088/0026-1394/43/5/010
J L Gardner
Show affiliationsUncertainties in the distribution temperature (DT) and correlated colour temperature are estimated for common sources and typical measurement uncertainties of a spectral transfer from a reference lamp. Uncertainty sensitivity coefficients for both parameters in terms of measured values of spectral irradiance are derived using a generalized matrix inverse. The uncertainty values are compared with differences in the source temperature parameters. DT is calculated using the CIE definition; shifts in DT due to the alternative of a direct fit of Planck's distribution, and to including weights in the process, are compared with the estimated uncertainties.
Issue 5 (October 2006)
Received 30 May 2006
Published 12 September 2006
J L Gardner 2006 Metrologia 43 403
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