Principles of Infrared Thermometry (PDF file) - Omega Engineering problems, consider dual- or multiwave- length radiometry to eliminate the emissivity problem. DESIGN ELEMENTS. IR thermometers come in a wide variety.
Principles of Non-Contact Temperature Measurement - Support The target must be optically (infrared-optically) visible to the IR thermometer. High ... light and behave according to the known optical principles. They can be ...