Measuring Temperature by Indirect Means

摘要

Noncontacting infrared (IR) temperature-measure-merit techniques are a valuable complement to thermocouples (TCs) and resistance temperature detectors (RTDs), the most common direct-contact temperature sensors used in the chemical process industries and the subject of a previous CEP article (Sept. 2011, pp.26-30).The use of noncontacting methods offers several advantages over contacting techniques. The measurements are fast, so more measurements can be made in a given time interval, allowing temperature distributions to be compiled more easily.