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Fundamentals of Rotating Machinery Diagnostics

By
Donald E. Bently
Donald E. Bently
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Charles T. Hatch
Charles T. Hatch
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Bob Grissom
Bob Grissom
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ISBN:
9780971408104
No. of Pages:
756
Publisher:
ASME Press
Publication date:
2002

The timebase plot is the most fundamental graphic presentation of machinery dynamic data. It shows how a single parameter (most often displacement, velocity, or acceleration, but also any other dynamic measurement) from a single transducer changes on a very short time scale, typically a fraction of a second. This is in contrast to trend plots, which display the value of a slowly changing parameter (for example, axial position) over a much longer time scale, typically hours to months.

The Structure of a Timebase Plot
The Keyphasor Mark
Compensation of Timebase Plots
Information Contained in the Timebase Plot
Summary
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