Errors analysis in pyrometric measurements in industrial environment

Abstract

The article presents the analysis of uncertainties associated with reliable accounting difficulties for the radiation coefficient in non-contact temperature measurement in industrial environment. Practical recommendations of methodological and instrumental nature to reduce such measurements errors are offered. On the Planck function and the aluminum reflection coefficient mathematical model basis the analytical aluminum radiation coefficient dependence on temperature and wavelength is obtained. Methodological errors estimates of low-temperature thermometers with a spectral sensitivity ranges equal to 7–14 and 3–5 µm are produced. Experimental studies are carried out using Optris CT LT15 pyrometer and Flir E60 infrared imager.

Keywords

• pyrometer
• emissivity
• methodological error
• instrumental error
• calibrator
• spectral ratio