Aeronautics and astronautics – Aircraft structure – Ice prevention
Patent
1995-05-22
1999-07-13
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft structure
Ice prevention
340583, 340962, B64D 1520
Patent
active
059215011
ABSTRACT:
In a method of detecting ice on surfaces of an aircraft, a surface of an aircraft is scanned with laser light operating at different wavelength regions in a manner whereby the surface scatters the laser light. Laser light scattered from the surface is detected. Radiation outside the wavelength bands of interest is removed prior to detection. The detected, filtered, scattered laser light is processed to reconstruct images of the surface, thereby indicating areas of ice and water on the surface. The processing takes into account the directions of scanned continuous wattage laser beams relative to the surface, laser beam geometry factors due to changing distance between the laser beams and the surface while scanning, relative signal levels, normalizations and returns from other detectors. The material of the windows of the aircraft blocks the laser beam and any stray laser light. Also, the windows of the aircraft could be treated to block the laser beam and the laser light. Areas of ice and water on the surface indicated by the processing are visually displayed.
REFERENCES:
patent: 4274091 (1981-06-01), Decker
patent: 4593533 (1986-06-01), Alsenz
patent: 4690553 (1987-09-01), Fukamizu et al.
patent: 4996430 (1991-02-01), Gupta
patent: 5180122 (1993-01-01), Christian et al.
patent: 5218206 (1993-06-01), Schmitt et al.
patent: 5243185 (1993-09-01), Blackwood
patent: 5296853 (1994-03-01), Federow et al.
patent: 5400144 (1995-03-01), Gagnon
Anderson Terry J.
Barefoot Galen L.
Hoch Jr. Karl J.
Northrop Grumman Corporation
LandOfFree
Aircraft ice detecting system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Aircraft ice detecting system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aircraft ice detecting system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2269034