Method and system for ripple-spring compression assessment

摘要

A method and system for directly measuring the compression of a ripple spring ( 23 ) in a dynamoelectric machine through a corresponding wedge ( 27 ). A compression-assessment tool ( 3 ) is provided that includes a carriage ( 32 ) for supporting a proximity sensor ( 34 ). The carriage ( 32 ) enables the proximity sensor ( 34 ) to be passed over the length of the ripple spring ( 23 ), which produces an output signal that is representative of the compression of the ripple spring ( 23 ).