Application of thermal imaging to remote airfield assessment

Nancy L. Swanson; Hugh W. Welker II; Bradley T. Blume; Jeff W. Rish III

doi:10.1117/12.280911

22 July 1997 Application of thermal imaging to remote airfield assessment

Nancy L. Swanson, Hugh W. Welker II, Bradley T. Blume, Jeff W. Rish III

Proceedings Volume 3079, Detection and Remediation Technologies for Mines and Minelike Targets II; (1997) https://doi.org/10.1117/12.280911
Event: AeroSense '97, 1997, Orlando, FL, United States

Abstract

An investigation was recently undertaken to determine the applicability of thermal imaging to remote airfield assessment. Thermal images were acquired with an IR scanning radiometer having a minimum detectable temperature difference of 0.1 degree centigrade and a spectral bandpass of 3-12 microns. Areas of a test runway, at Wright Laboratory, Tyndall AFB, FL, were prepared to assess the capability of detection for small cracks and subsurface voids. We wee able to detect voids that had been excavated beneath six inches of asphalt, millimeter width cracks, holes and other surface anomalies. During periods of diurnal heating and cooling,the surface anomalies radiate more energy than the bulk material and are easily detectable in the thermal images. We report on the image contrast ratios as a function of temperature throughout the diurnal period.

Citation Download Citation

Nancy L. Swanson, Hugh W. Welker II, Bradley T. Blume, and Jeff W. Rish III "Application of thermal imaging to remote airfield assessment", Proc. SPIE 3079, Detection and Remediation Technologies for Mines and Minelike Targets II, (22 July 1997); https://doi.org/10.1117/12.280911

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