Rotor inbalance correction apparatus and method thereof

Details Rotor inbalance correction apparatus and method thereof Rotor inbalance correction apparatus and method thereof

1989-05-24

1990-08-07

Myracle, Jerry W.

Measuring and testing

Rotor unbalance

Dynamic

G01M 116

Patent

active

049457632

ABSTRACT:
An inbalance detecting and correcting station for a disk-shaped rotor. The system rotates a rotor up to speed at a measuring station, and detects reflections from the rotor. A peak among the reflections is detected in steady state, and 80% of this peak is taken as a trigger level. The peak is then used to provide a phase reference whenever the reflection exceeds the trigger level. Inbalance data is determined based on the phase 0 detected at this peak. An inbalance correction station corrects for this inbalance, using the same trigger level detected in the inbalance measuring station. This trigger level is coupled from the inbalance detecting station to the inbalance correction station, and a photosensor detects reflections from the same rotor. These reflections from the same rotor are used with the same trigger level to produce pulses at appropriate times without having to re-measure the trigger level.

REFERENCES:
patent: 3228251 (1966-01-01), Trimble

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