Monitor for shaft vibration in an operating turbine

Details Monitor for shaft vibration in an operating turbine Monitor for shaft vibration in an operating turbine

1989-03-23

1991-02-26

Myracle, Jerry W.

Measuring and testing

Test stand

For engine

73660, G01M 1500

Patent

active

049952579

ABSTRACT:
A monitor for torsional shaft vibration in an operating turbine is described incorporating two marks longitudinally spaced apart on the shaft, sensors longitudinally spaced apart by a predetermined distance for detecting each mark as it passes by the sensor, a timer for measuring the lapse time of rotation of each mark, and a subtractor. The invention overcomes the problem of accurately detecting, measuring and interpreting transient angular shaft vibration.

REFERENCES:
patent: 4347748 (1982-09-01), Pierson

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