Turbine generator shaft torsion monitor

Details Turbine generator shaft torsion monitor Turbine generator shaft torsion monitor

1989-05-08

1991-07-16

Williams, Hezron E.

Measuring and testing

Vibration

Sensing apparatus

7386234, 73660, G01H 110

Patent

active

050314599

ABSTRACT:
A shaft torsion monitor comprises a plurality of sensors for sensing the angular position of various portions of the shaft under dynamic conditions and for producing sets of data representative of the sensed angular positions. A memory is provided for periodically storing one of the sets of data representative of the angular position of the various portions of the shaft in the absence of torsion. Circuitry is provided for subtracting the stored set of data from each of the other sets of data to eliminate the effects of noise. The resulting data is analyzed to determine the torsion experienced by the shaft.

REFERENCES:
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patent: 4148222 (1979-04-01), Wolfinger
patent: 4213346 (1980-07-01), Polovnikov et al.
patent: 4347571 (1982-08-01), Leung et al.
patent: 4423635 (1984-01-01), Senicourt et al.
patent: 4444063 (1984-04-01), Snowden et al.
patent: 4627297 (1986-12-01), Akimoto
patent: 4887468 (1989-12-01), McKendree et al.
patent: 4934192 (1990-06-01), Jenkins

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