Vibration analysis method

Details Vibration analysis method Vibration analysis method

1995-07-27

1998-01-20

Voeltz, Emanuel T.

Boots, shoes, and leggings

364554, 73658, G01H 1700, G01M 1900, G05B 2302

Patent

active

057107157

ABSTRACT:
A vibration analysis method for detecting abnormalities by analyzing a vibration waveform. The method includes the steps of, in a plurality of observation time points {t.sub.j } composed of a number n of specified time points t.sub.j (j=1 to n) counted from a start time point t.sub.0, detecting displacements of a vibration wave f.sub.j (j=1 to n) at the individual time points of the plurality of observation time points, and comparing points in an n-dimensional space composed of the displacements, detected at the individual observation time points, with points in the n-dimensional space of a vibration waveform that are designated as being normal.

REFERENCES:
patent: 4559828 (1985-12-01), Liszka
patent: 4989159 (1991-01-01), Liszka et al.

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