The Ski Slope Phenomenon, Paper360º July/August 2018
You might encounter situations where there are low frequency disturbances, sudden impacts, or other unwanted disturbances effecting vibration measurements—which can be seen in the spectrum domain as a Ski Slope. A Ski Slope disturbance is easy to recognize in a spectrum due to its typical shape (see Fig. 1).
How should you address this issue? In applications where disturbances (Ski Slopes) occur randomly, a filter mechanism should be used.
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