34 – The measurement formula
10400603;a2
Figure 34.3 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
= 20°C (+68°F); T
= 20°C (+68°F).
refl
atm
233
Publ. No. 1558792 Rev. a460 – ENGLISH (EN) – July 1, 2010