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Accurate temperature measurements are critical to forging processes and the metallurgical properties of forged components. For a given set of specific conditions, IR temperature sensors work reliably and produce repeatable temperature measurements – but not necessarily accurate ones. Accuracy comes from properly calibrating sensors to the specific materials and applications.
Part I of this article considered the technology of measuring temperature through the infrared radiation of a heated metal mass and some of the misconceptions and inaccuracies that may be present in or about the process. This article will explore ways to improve accuracy through proper calibration and to take temperature measurements of highly reflective bodies.
Our discussion of thermocouples continues with more practical advice and a deeper understanding into how to install and maintain thermocouples so as to control the heart of any thermal-processing system. Let’s learn more.
Accurate temperature control of heat-treating furnaces, ovens and baths depends in large part on the proper choice of thermocouples as well as on ancillary items such as extension (lead) wire, protection tubes and connectors.