Eddy current detection and compensation

专利名称：Eddy current detection and compensation发明人：John M. Nieminen,Stefan R. Kirsch申请号：US10824846申请日：20040415公开号：US07783441B2公开日：20100824

专利附图：

摘要：A distortion compensation method includes determining an undisturbed phasefor at least one of a first position indication signal and a second position indication signal.The method includes determining an undisturbed ratio that relates the amplitude of thefirst position indication signal at a first frequency to the amplitude of the second position

indication signal at a second frequency. The method also includes determining adisturbed amplitude of the position indication signal and adjusting a position indicationbased on the disturbed amplitude and phase, the undisturbed amplitude ratio, and theundisturbed phase. The method further comprises determining a relationship betweenthe eddy current phase of the first position indication signal and the second positionindication signal.

申请人：John M. Nieminen,Stefan R. Kirsch

地址：Waterloo CA,Radolfzell DE

国籍：CA,DE

代理机构：Fish & Richardson P.C.

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