The influence of emissivity on measured temperature in dependence on spectral range of IR camera detector and its approximate calculation

J. Tesar, J. Martan, J. Skala
2016 Proceedings of the 2016 International Conference on Quantitative InfraRed Thermography   unpublished
The aim of this article is to show how to get the approximate temperature when the emissivity different from real emissivity of measured surface is used during evaluation. The spectral dependence of measured/calculated temperature is discussed too. In this paper there is presented temperature measurement for three IR cameras of different wavelength ranges on reference blackbody radiators. The influence of emissivity to the evaluated temperatures is made in postprocessing. The simplification
more » ... simplification from wavelength range to single main wavelength enables direct using of Planck's law to calculation of total radiation flux aiming to the detector. Its analysis with incorrect emissivity leads in resulting approximate temperature.
doi:10.21611/qirt.2016.134 fatcat:jijc4m4orbd6vbxmd7uawi2hk4