Context
Two-colour Pyroreflectometry
Article REF: R2805 V1
Context
Two-colour Pyroreflectometry

Author : Daniel HERNANDEZ

Publication date: March 10, 2012 | Lire en français

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1. Context

Monochromatic optical pyrometry, a non-contact measurement method [R 2 610][R 2 735] , particularly attractive in the high-temperature range, is based on Planck's law, which expresses the luminance energy L 0 of the black body as a function of wavelength λ and temperature T independently of the direction of the radiation :

L0(λ,T)=C,λ−5/(exp(C2/λT)−1) en W⋅m−3⋅sr−1
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