Turbine generator shaft torsion monitor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 16, 1991
Grant Date -
N/A
app pub date -
May 8, 1989
filing date -
May 8, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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