Waterfall Plot

A series of spectral maps taken at regular intervals of time or at regularly spaced shaft speeds, similar to the flow of a waterfall.

The frequency spectrum is displayed as a curve for each specified time instant. Several such curves (for different time instants) are displayed simultaneously. As new curves are generated, they are displayed at the top of the plot, with the oldest curves scrolling off the bottom, resulting in a "waterfall" effect.

See also: Campbell Diagram, Colourmap.

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Subjects: Mathematics Noise & Vibration Signal Processing