Influence of object-system distance on accuracy of remote temperature measurement with IR systems

Abstract An investigation on the effect of the differencebetween the values of the distance object-system under calibration and real work conditions on the accuracy of the temperature measurement with IR systems has been carried out. The formulas that enable determination of the temperature measurement errors due to this difference for any measurement conditions and system parameters has been developed. It has been shown that the errors due to this source can be significant.