FLIR A3 series - Page 106

The measurement formula
22
Figure 22.3 Relative magnitudes of radiation sources under varying measurement conditions (LW cam-
era). 1: Object temperature; 2: Emittance; Obj: Object radiation; Refl: Reflected radiation; Atm: atmos-
phere radiation. Fixed parameters: τ = 0.88; T
refl
= 20°C (+68°F); T
atm
= 20°C (+68°F).
#T559498; r.22370/22370; en-US
98