Method for detection and compensation of eddy currents

Details Method for detection and compensation of eddy currents Method for detection and compensation of eddy currents

G - Physics

01

V

G01V 3/08 (2006.01)

Patent

CA 2756830

A method and system for detecting the presence of conductive objects are provided. The method includes determining a characteristic frequency function of an undisturbed magnetic tracking system and measuring a disturbed real-time frequency function. Real and imaginary components of a position indication signal are calculated using a chi-squared minimization of the disturbed frequency function to the undisturbed frequency function. A chi-squared value based on the characteristic frequency function and the disturbed frequency function is calculated and the chi--squared value is monitored to detect changes indicating the presence of a conductive object.

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