Sensors (May 2021)

A Bi-Spectral Microbolometer Sensor for Wildfire Measurement

  • Denis Dufour,
  • Loïc Le Noc,
  • Bruno Tremblay,
  • Mathieu N. Tremblay,
  • Francis Généreux,
  • Marc Terroux,
  • Carl Vachon,
  • Melanie J. Wheatley,
  • Joshua M. Johnston,
  • Mike Wotton,
  • Patrice Topart

DOI
https://doi.org/10.3390/s21113690
Journal volume & issue
Vol. 21, no. 11
p. 3690

Abstract

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This study describes the development of a prototype bi-spectral microbolometer sensor system designed explicitly for radiometric measurement and characterization of wildfire mid- and long-wave infrared radiances. The system is tested experimentally over moderate-scale experimental burns coincident with FLIR reference imagery. Statistical comparison of the fire radiative power (FRP; W) retrievals suggest that this novel system is highly reliable for use in collecting radiometric measurements of biomass burning. As such, this study provides clear experimental evidence that mid-wave infrared microbolometers are capable of collecting FRP measurements. Furthermore, given the low resource nature of this detector type, it presents a suitable option for monitoring wildfire behaviour from low resource platforms such as unmanned aerial vehicles (UAVs) or nanosats.

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