B - Operations – Transporting – 64 – D
Patent
B - Operations, Transporting
64
D
349/35
B64D 15/20 (2006.01)
Patent
CA 1214255
- 1 - Abstract Ice Detector An ice detector to detect a layer of ice on a thin solid sheet (14), such as the skin of an aircraft wing, even in the presence of water, comprises two ultrasonic transducers attached to the sheet. The first transducer (10) is adapted to cause propagation of ultrasonic waves through the sheet (14) having their predominant component parallel to the surface of the sheet (14). Such waves will dissipate energy into an ice layer adhering to the surface, but not into air or a liquid layer. The second transducer (30) is adapted to detect the waves propagating in the sheet and to give a signal representative of their amplitude. A discriminator (34) responsive to the signal detects the presence of an ice layer on the surface.
433693
Deighton Michael O.
Gillespie Arthur B.
Pike Roger B.
Scott-Kestin Colin B.
Watkins Roger D.
Gowling Lafleur Henderson Llp
United Kingdom Atomic Energy Authority
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