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Proceedings Paper

The effect of surface reflection and surrounding environment on target temperature estimation using an infrared FPA
Author(s): Matthias Voigt; Visvanathan Ramesh; Jonnalagadda Vinay; Dennis LeMieux
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Paper Abstract

The accuracy of infrared temperature estimation can degrade significant for enclosed objects with reflective surfaces. This paper describes a basic model of the incident radiation on a FPA sensor element considering a target object, surrounding environment, surface temperatures, surface emissivity/reflection and optics. The model is used to characterize the direct (one color method) temperature estimation error as a function of reflection, wavelength, target temperatures and the environment geometry. Temperature estimation errors based on numerical simulations with focus on near infrared are compared in this paper in a variety of scenarios assuming target temperatures between 1000 to 1600 Kelvin. In one scenario is the measured radiation corrected to minimize the error due to reflection.

Paper Details

Date Published: 12 April 2007
PDF: 12 pages
Proc. SPIE 6541, Thermosense XXIX, 654103 (12 April 2007); doi: 10.1117/12.722564
Show Author Affiliations
Matthias Voigt, Siemens Corporate Research (United States)
Visvanathan Ramesh, Siemens Corporate Research (United States)
Jonnalagadda Vinay, Siemens Power Generation (United States)
Dennis LeMieux, Siemens Power Generation (United States)


Published in SPIE Proceedings Vol. 6541:
Thermosense XXIX
Kathryn M. Knettel; Vladimir P. Vavilov; Jonathan J. Miles, Editor(s)

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