Turbine blade vibration detection system

Details Turbine blade vibration detection system Turbine blade vibration detection system

1988-07-11

1990-06-19

Williams, Hezron E.

Measuring and testing

Vibration

Sensing apparatus

G01H 1100

Patent

active

049341928

ABSTRACT:
A system for monitoring the vibration of a plurality of turbine blades configured in a row includes first and second sensors for producing first and second input signals, respectively, when a turbine blade is sensed. The first and second sensors are mounted to substantially simultaneously sense the same turbine blade. Circuitry compares the first and second input signals to detect axial displacement. An output device is responsive to the detected displacement.

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