Posts tagged as:

emittance

Handbook of OSML Libraries: Emittance

December 26, 2008

CRMHT – CNRS Centre de Recherche sur les Matériaux à Haute Température, Orléans, France
Mesure indirecte de l’émittance (Includes sample data for Silicon Dioxide)
Mesure de la réflectivité et de la transmissivité normales spectrales (10 à 40 000 cm-1 soit 1 000 à 0,25 µm).
L’émissivité normale spectrale se déduit indirectement par calcul de ces deux grandeurs par [...]

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ASTM E423 – 71(2008): Standard Test Method for Normal Spectral Emittance

July 28, 2008

Standard Test Method for Normal Spectral Emittance at Elevated Temperatures of Nonconducting Specimens ASTM E423 – 71(2008) – www.ASTM.org
1. Scope
1.1 This test method describes an accurate technique for measuring the normal spectral emittance of electrically nonconducting materials in the temperature range from 1000 to 1800 K, and at wavelengths from 1 to 35 ?m. [...]

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The RET Theory

February 23, 2008

Ircon, Inc., a leading producer of industrial radiation thermometers, line scanners and quantitative thermal imagers, in its training programs for many years used to teach something they called the RAT Theory.
Reflectance, Absorbtance and Transmittance, or the coefficients of them, abbreviated as R, A &T must sum to 100%, or R + A + T=1.
An easy [...]

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