10400703;a2
Figure 34.4 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).
184 Publ. No. T559597 Rev. a554 – ENGLISH (EN) – September 27, 2011
34 – The measurement formula
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