Method and apparatus for monitoring machine performance

Details Method and apparatus for monitoring machine performance Method and apparatus for monitoring machine performance

1994-06-21

1996-06-04

Wieder, Kenneth A.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324117H, G01R 3100

Patent

active

055237010

ABSTRACT:
Machine operating conditions can be monitored by analyzing, in either the time or frequency domain, the spectral components of the motor current. Changes in the electric background noise, induced by mechanical variations in the machine, are correlated to changes in the operating parameters of the machine.

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patent: 4639665 (1987-01-01), Gary
patent: 4773263 (1988-09-01), Lesage et al.
patent: 4965513 (1990-11-01), Haynes et al.
patent: 4978909 (1990-12-01), Hendrix et al.
patent: 5058434 (1991-11-01), Zaschel
patent: 5187434 (1993-02-01), Ando

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