Apparatus and method for displaying unbalance of rotors during m

Details Apparatus and method for displaying unbalance of rotors during m Apparatus and method for displaying unbalance of rotors during m

1981-07-09

1984-04-10

Gill, James J.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

73462, G01M 122

Patent

active

044413556

ABSTRACT:
A method for displaying the amount of unbalance during rotation of a rotor, preferably in two correction planes, includes adjustment of the amounts of unbalance determined during measurement by a factor obtained during calibration. The method is characterized by measuring unbalance forces of known magnitude and comparing them with predetermined nominal data identical to the known unbalance forces during measurement, and by adjusting the amounts of unbalance of the rotor determined during measurement by the result of the above comparison. The apparatus of the invention comprises an unbalance measuring device, data memories for providing nominal reference data, comparator circuits for comparing the measured values derived from an auxiliary shaft with the nominal reference data to determine adjustment values, and multiplier circuits for adjusting the measured values derived from the main shaft in accordance with the adjustment values. The apparatus further comprises a plane separation network for resolving adjusted values in accordance with left and right planes, and meters for displaying the resolved values.

REFERENCES:
patent: 3280638 (1966-10-01), Hack

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