The effect of surface reflection and surrounding environment on target temperature estimation using an infrared FPA

Matthias Voigt; Visvanathan Ramesh; Jonnalagadda Vinay; Dennis LeMieux

doi:10.1117/12.722564

12 April 2007 The effect of surface reflection and surrounding environment on target temperature estimation using an infrared FPA

Matthias Voigt, Visvanathan Ramesh, Jonnalagadda Vinay, Dennis LeMieux

Author Affiliations +

Proceedings Volume 6541, Thermosense XXIX; 654103 (2007) https://doi.org/10.1117/12.722564
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

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.

Citation Download Citation

Matthias Voigt, Visvanathan Ramesh, Jonnalagadda Vinay, and Dennis LeMieux "The effect of surface reflection and surrounding environment on target temperature estimation using an infrared FPA", Proc. SPIE 6541, Thermosense XXIX, 654103 (12 April 2007); https://doi.org/10.1117/12.722564

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