Rolls-royce Corporation

Rolls-royce North American Technologies Inc.

Glen Steven Bishop

John Joseph Costello

Geoffrey L Gatton

Richard Joseph Skertic

Wayne Thomas Padgett, Sr

A blade tip sensor may be provided that includes a bridge-network circuit embedded in a composite body such as a ceramic matrix composite body. The bridge-network circuit may include a first resistor-capacitor circuit on a first branch and a second resistor-capacitor circuit on a second branch. Each of the first resistor-capacitor circuit and the second resistor-capacitor circuit includes a corresponding capacitor having a capacitance that depends on a distance between the corresponding capacitor and a blade of a rotor.

Tip clearance radio frequency sensor

A patch antenna array sensor is provided. The patch antenna array sensor includes a ceramic matrix composite body in which a patch antenna array is embedded, wherein the patch antenna array sensor is configured to detect blade tip clearance or some other aspect of one or more blades in a gas turbine engine.

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Indianapolis, IN, United States of America

Glen Steven Bishop