Method and apparatus for monitoring gas turbine blades

Details Method and apparatus for monitoring gas turbine blades Method and apparatus for monitoring gas turbine blades

G - Physics

01

P

G01P 3/64 (2006.01) G01M 15/14 (2006.01) G01P 3/66 (2006.01)

Patent

CA 2647471

A method (and corresponding apparatus) for monitoring gas turbine blades. The output from an eddy current sensor monitoring the movement of turbine blades past the sensor is processed to determine when the signal train from the sensor omits a signal or pulse corresponding to one of the shaft's full complement of blades. The signal processor compares sensed blade periods with average blade periods.

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