10400703;a2
Figure 22.4 Relative magnitudes of radiation sources under varying measurement conditions (LW 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).
Publ. No. T559498 Rev. a461 – ENGLISH (EN) – August 19, 2010 83
22 – The measurement formula
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