Method and apparatus for measuring static unbalance of a rotary member
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United States of America Patent
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-
Aug 18, 1992
Grant Date -
N/A
app pub date -
May 15, 1990
filing date -
Aug 18, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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