10400603;a2
Figure 21.3 Relative magnitudes of radiation sources under varying measurement conditions (SW camera).
1: Object temperature; 2: Emittance; Obj: Object radiation; Refl: Reflected radiation; Atm: atmosphere
radiation. Fixed parameters:
τ
= 0.88;
T
refl
= 20°C (+68°F);
T
atm
= 20°C (+68°F).
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Publ. No. T559733_en-US Rev. a571 – ENGLISH (EN) – November 4, 2011
21 – The measurement formula
