Ice imaging in aircraft anti-icing fluid films using polarized light

Viktor G. Grishaev, Igor A. Usachev, Vladimir P. Drachev, Ramil K. Gattarov, Nadezhda I. Rudenko, Alidad Amirfazli, Ivan S. Borodulin, Ivan K. Bakulin, Mikhail V. Makarov, Iskander S. Akhatov

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

During qualification endurance tests of aircraft de−/anti-icing fluids, their failure is evaluated by a naked-eye visual inspection and occasionally poking freezing areas with a toothpick. For ice detection improvement, image processing techniques have been developed in the visible and infrared spectra. Such techniques have issues with low ice contrast or combining with the visual inspection. Here we show how to enhance ice contrast in the visible spectrum by using ice birefringence and polarized light reflection. The method can be used for both visual inspection and automatic ice detection systems.

Original languageEnglish
Article number103459
JournalCold Regions Science and Technology
Volume194
DOIs
Publication statusPublished - Feb 2022

Keywords

  • Aircraft anti-icing fluid
  • Birefringence
  • Ice detection
  • Polarized light
  • Reflection

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