G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 27/90 (2006.01)
Patent
CA 2143520
The present invention provides an eddy current sensing device capable of in-situ operation within a high temperature and high vibration environment of a combustion turbine engine. The eddy current sensing device is preferably utilized in an eddy current sensing system for monitoring crack formation and displacement of rotating members of the combustion turbine engine. The method according to the present invention provides inducing eddy currents in the rotating member, detecting the eddy currents, providing a signal indicative of the detected eddy currents, filtering the signal based on the condition to be monitored and evaluating the filtered signal to determine whether the condition, such as the formation of a crack in the surface of the rotating member exists, and if so, determining whether the condition is critical or routine.
Bertsch Oran L.
Guenther Paul
Metala Michael J.
Moore Charles C.
Zombo Paul J.
Bereskin & Parr
Westinghouse Electric Corporation
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