KEM 2009 DOI: 10.4028/www.scientific.net/kem.413-414.811 View full text
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Yi Bo Fan, Feng Shou Gu, Andrew Ball

Abstract: AbstractThis paper presents the use of the MUSIC algorithm improved by higher order statistics (HOS) to extract key features from the noisy acoustic emission (AE) signals. The low signal-to-noise ratio of AE signals has been identified as a main barrier to the successful condition monitoring of pump mechanical seals. Since HOS methods can effectively eliminate Gaussian noise, it is possible in theory to identify a change in seal conditions from AE measurements even with low signal-to-noise ratios. Tests condu…

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