Techniques for thermographic imaging of buildings in sunlight and shadow

Kathryn Knettel

doi:10.1117/12.668931

18 April 2006 Techniques for thermographic imaging of buildings in sunlight and shadow

Kathryn Knettel

Proceedings Volume 6205, Thermosense XXVIII; 62050Z (2006) https://doi.org/10.1117/12.668931
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

Performing infrared imaging and analysis on buildings or structures is challenging on a good day. More often than not, scanning an entire multi-story building will take several days. It requires patience from the thermographer because he has to let the sun to do its job solar loading the building, or, he may have to wait for the building to radiate its solar load in the cool of the evening. Usually this takes a "whatever the study requires" state of mind and the days are long. An experienced eye is also required to understand the nuances of construction and subtle temperature variations as they appear in an infrared image. Even with optimal conditions and a good uniform solar load, a strong thermographic indication can trip you up when it travels around a corner or into shadows. This condition can frustrate the thermographer, and also make the job longer because he has to wait for the sun to load into the next area of interest to chase out the indication. How do you get around this? This paper presents thermographic techniques to help image indications that run from uniform solar load around corners or through shadows.

Citation Download Citation

Kathryn Knettel "Techniques for thermographic imaging of buildings in sunlight and shadow", Proc. SPIE 6205, Thermosense XXVIII, 62050Z (18 April 2006); https://doi.org/10.1117/12.668931

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