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Proceedings Paper

Unique solution for accurate in-situ infrared profiling in reheat furnaces
Author(s): David Primhak; Ben Wileman; Peter Drögmöller
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Paper 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.

Paper Details

Date Published: 3 May 2010
PDF: 12 pages
Proc. SPIE 7661, Thermosense XXXII, 76610L (3 May 2010); doi: 10.1117/12.850866
Show Author Affiliations
David Primhak, Land Instruments International Ltd. (United Kingdom)
Ben Wileman, Land Instruments International Ltd. (United Kingdom)
Peter Drögmöller, Land Instruments International Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 7661:
Thermosense XXXII
Ralph B. Dinwiddie; Morteza Safai, Editor(s)

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