Verification of multiband system for noncontact emissivity measurements

In recent years an increasing interest in passive multiband systems for temperature and emissivity measurement was noted. However, available literature about passive multiband systems concentrated exclusively on problem of temperature measurements with these systems in situation when these systems can be also used for non-contact emissivity measurements. Modeling of such systems, what is usually the first stage of system designing, requires acceptation of several simplifications and approximations. In this paper an experimental verification of modeling results is performed based on developed measurement setup. Obtained results are in good agreement with results of previously performed computer analyses that shows usefulness of multiband method for emissivity measurements in working conditions.