Method and apparatus for measuring static unbalance of a rotary

Details Method and apparatus for measuring static unbalance of a rotary Method and apparatus for measuring static unbalance of a rotary

1990-05-15

1992-08-18

Chapman, John E.

Measuring and testing

Rotor unbalance

Gravitational moment tilts rotor about axis transverse to...

G01M 112

Patent

active

051388820

ABSTRACT:
In a method and apparatus for measuring static unbalance of a rotary member, involving determining the axial moment of inertia of the rotary member which is mounted pivotably in a horizontal position in a balancing system, about an axis of the balancing system, a deviation of the rotary member from its horizontal position is detected and a return force for returning the rotary member to the horizontal position is produced in response to a control parameter from a regulating circuit in dependence on the detected deviation, with regulation of the return force also being effected in dependence on the weight of the rotary member. The value of the static unbalance of the rotary member is formed from the measured return force.

REFERENCES:
patent: 4060003 (1977-11-01), Bacsanyi et al.
Gunther Himmler, "Ursachen und Messung der Schleifscheibenunwucht bei der Herstellung", Hoffman News, vol. 8.
Gunther Himmler-Peter Drust, "Waagen zum Auswuchten und Massentarieren", Hoffman News, vol. 11.
Grundkurs der Regelungstechnik, Einfuhrung in die Praktischen und Theortetischen Methoden, by Ludwig Merz and Hilmar Jaschek, (R. Oldenbourg Verlag, Munich, 1985) pp. 186-191.

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