Imbalance determining apparatus and method

Details Imbalance determining apparatus and method Imbalance determining apparatus and method

H - Electricity

02

K

310/64

H02K 41/00 (2006.01)

Patent

CA 1111476

ABSTRACT OF THE DISCLOSURE IMBALANCE DETERMINING APPARATUS AND METHOD Apparatus for determining the amount and location of imbalance in an article which is to be balanced about its axis includes a table for receiving the article and for positioning its axis. The table is supported upon a base for substantially free tilting movement generally about a point on a vertically extending axis defined by the base. A number of proximity transducers for sensing the orientation of the table relative to the base are provided. A pair of force coils positioned in quadrature about the axis between the base and the table are responsive to the proximity transducers to apply forces between the table and the base to bring the table and the article which rests thereon into a substantially neutral orientation with respect to the base. The method of the present invention com- prises the steps of placing the article on the table with the article axis at a predetermined position thereon. Forces are then applied to the table at one or more predetermined locations to bring the table and the article positioned thereon into a neutral orientation. The amount and location of the applied force are determined to ascertain the amount and location of imbalance existing in the article.

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