Unique solution for accurate in-situ infrared profiling in reheat furnaces

David Primhak; Ben Wileman; Peter Drögmöller

doi:10.1117/12.850866

3 May 2010 Unique solution for accurate in-situ infrared profiling in reheat furnaces

David Primhak, Ben Wileman, Peter Drögmöller

Proceedings Volume 7661, Thermosense XXXII; 76610L (2010) https://doi.org/10.1117/12.850866
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

As thermal imaging becomes a more accepted technology in industrial environments it can provide exciting new solutions to applications that have been previously dominated by single point pyrometers. The new development of an uncooled focal plane array thermal imager with a narrow band 3.9μm filter and background compensation processing enables measurements in industrial furnaces to provide temperature profiling of the product. This paper will show why the use of a 3.9μm camera with a borescope optic is the most accurate noncontact method for in-furnace temperature measurement. This will be done using the example of a reheat furnace where in a controlled trial using an instrumented billet the measurement from the IR device was shown to accurately track the thermocouple temperature during a variety of furnace operating conditions.

Citation Download Citation

David Primhak, Ben Wileman, and Peter Drögmöller "Unique solution for accurate in-situ infrared profiling in reheat furnaces", Proc. SPIE 7661, Thermosense XXXII, 76610L (3 May 2010); https://doi.org/10.1117/12.850866

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