Monitoring bearing performance

Details Monitoring bearing performance Monitoring bearing performance

2005-10-18

2005-10-18

Pope, Daryl C (Department: 2632)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S506000, C340S514000, C340S515000, C340S679000, C340S683000

Reexamination Certificate

active

06956491

ABSTRACT:
Techniques for qualifying and monitoring bearing performance and condition in a rotary servo systems (e.g., galvanometer scanner) are disclosed. A position error signal is analyzed for signal anomalies that can signify bearing damage. A DC offset ramp is applied to the position error signal to test whether the anomaly is angular position dependent. The anomaly is associated with the corresponding command signal value and range of values to calculate the angular position and range of the apparent bearing damage. The amplitude of the anomaly is measured and associated with a relative degree of bearing damage.

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