METHOD OF INCREASING ACCURACY OF INFRARED TEMPERATURE MEASUREMENT

Abstract

Object temperature diagnostics by means of infrared temperature measurements as well as measurements of temperature gradients are considered. Values of the surface temperature carry information about the internal structure, defects and their location of measured object. This information becomes quite important for preventive measures and repairs of technical objects. The world production of infrared thermometers and pyrometers, thermal imagers and infrared cameras is quite significant. These measuring devices are small-sized, with low power consumption at comparatively high performance and the possibility of real-time processing information. It contributes to expanding the radiation thermometers and infrared cameras application in industry. However, low accuracy of infrared temperature measurements can lead to inadequate decisions caused by inefficient analyze of thermograms. The lack of correct information about values of impact factors including an emissivity coefficient in industrial conditions becomes a decisive. Therefore, enhancing the accuracy of temperature/temperature gradient measurements of object surface and developing of temperature measurement methodology in production cycles becomes more and more important.