Method for classifying electrical sheet
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United States of America Patent
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Mar 10, 2015
Grant Date -
May 24, 2012
app pub date -
Jul 29, 2009
filing date -
Jul 29, 2009
priority date (Note) -
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Abstract
A method for classifying electrical sheet is produced. The electrical sheet is used to produce an electrical machine and is available in the form of a strip roll wherein a magnetic flux that changes over time and that causes a shape change of the strip roll and magnetic losses is produced in the strip roll using an excitation winding fed by a feeding device, the shape change and/or the magnetic losses are measured using a measuring device and the measurement signal obtained is fed to an evaluation device, and the evaluation device categorizes the electrical sheet in regard to noise emission and/or magnetic losses using the measurement signal.
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