Turbine blade vibration monitor for non-magnetic blades

Details Turbine blade vibration monitor for non-magnetic blades Turbine blade vibration monitor for non-magnetic blades

1988-11-07

1990-04-10

Williams, Hezron E.

Measuring and testing

Vibration

Sensing apparatus

G01N 2900

Patent

active

049149539

ABSTRACT:
A monitor for monitoring the vibration of the rotating portion of a turbine comprises radioactive nuclides carried by a rotating portion of the turbine. A sensor is positioned in a fixed location with respect to the rotating portion of the turbine. The sensor is responsive to the movement of the radioactive nuclides past the sensor for producing an input signal. A processor extracts vibration information from the input signal.

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Jones, "Development of a Noninterference Technique for Measuring Turbine Engine Rotor Blade Stresses," AIAA 21st Joint Propulsion Conference Jul. (1985).
EPRI Technical Brief RP 1957-3.

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