Infrared thermometers measure the amount of infrared energy emitted by an object’s surface and convert this signal into a temperature value. While many factors affect the measurement accuracy, the most important consideration is selecting the sensor design that most effectively compensates for the emissivity characteristics of the measured surface.
Successful temperature measurement of ‘non-grey body’ materials, such as aluminum, requires using a multi-wavelength sensor to compensate for the complex emissivity characteristics of these materials. For example, aluminum emissivity variations occur with changes in the alloy, surface oxidation, surface texture, surface contamination, and crystal structure.
We have a unique line of proprietary pyrometers that use a new approach for accurate temperature measurement. These proprietary pyrometers provide highly accurate, non-contact temperature measurements of actual target emissivity and intermediate; these products are not sensitive to changes in emissivity or other target parameters and are not affected by the intermediate conditions between the pyrometer and the target. As a result, our pyrometers can handle the unstable targets and medium conditions commonly found in aluminum, indicating the target temperature to a high degree of accuracy.