Digital Demodulation Of Noise Contaminated Rotational Speed Variations

Cheng-Yuan Liou; Chih-Chiang Chang

doi:10.1117/12.968271

1 January 1987 Digital Demodulation Of Noise Contaminated Rotational Speed Variations

Cheng-Yuan Liou, Chih-Chiang Chang

Proceedings Volume 0858, Signal Acquisition and Processing; (1987) https://doi.org/10.1117/12.968271
Event: IECON, Cambridge, 1987, Cambridge, MA, United States

Abstract

Since the variations of rotational speeds can provide significant information in diagnosing a rotating machine. Substantial effort has been expended in attempts to find the detailed variations of speeds. Speed variations have been estimated with varying degrees of success. A portion of the effort has been motivated by active research and development of monitoring systems for turbines and oil-drilling rods. The viability to accurately estimate small variations using noise contaminated records can be done by constructing a modified digital demodulation scheme.

Citation Download Citation

Cheng-Yuan Liou and Chih-Chiang Chang "Digital Demodulation Of Noise Contaminated Rotational Speed Variations", Proc. SPIE 0858, Signal Acquisition and Processing, (1 January 1987); https://doi.org/10.1117/12.968271

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