Ge Aviation Systems Limited

Honeywell International Inc.

Stephen Craig Carlson

Julian Alexander Opificius

James Z T Liu

Steven J Magee

A method and apparatus for predicting conditions favorable for icing, includes sensing a value indicative of a thermal cycling period, comparing, the sensed thermal cycling period with a threshold value, determining, if the sensed thermal cycling period satisfies the threshold value, and indicating, by the controller module, that conditions favorable for icing are present when the sensed thermal cycling period satisfies the threshold value.

Method and apparatus for predicting conditions favorable for icing

A method of determining ice accretion on a surface of an aircraft can include supplying a known power to a heating element formed in a patch, wherein the patch includes a temperature sensor. A controller module can compare a sensed thermal signature with a threshold signature and determine the presence of ice accretion on the aircraft.

Method and apparatus for detecting ice accretion

An acoustic wave flow sensor includes a piezoelectric substrate and a heater located immediately below the acoustic wave substrate. A heating element can be deposited in association with a plurality of acoustic wave components upon the acoustic wave substrate. The acoustic wave components, the piezoelectric substrate, the heater and the heating element operate in a high-condensation environment, such that the plurality of acoustic wave components are heated directly by the heater and/or the heating element, thereby promoting a desorption of water in the high-condensation environment in order to achieve accurate and reliable flow sensing data thereof.

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Roscoe, IL, United States of America

Stephen Craig Carlson