Method and apparatus for calibrating a magnetic field generator
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United States of America Patent
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Jan 1, 2002
Grant Date -
N/A
app pub date -
Mar 8, 1999
filing date -
May 6, 1996
priority date (Note) -
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Abstract
A method for calibrating a magnetic field generator, including fixing one or more magnetic field sensors to a probe in known positions and orientations and selecting one or more known locations in the vicinity of the magnetic field generator. The magnetic field generator is driven so as to generate a magnetic field. The probe is moved in a predetermined, known orientation to each of the one or more locations, and signals are received from the one or more sensors at each of the one or more locations. The signals are processed to measure the amplitude and direction of the magnetic field, at the respective positions of the one or more sensors and to determine calibration factors relating to the amplitude and direction of the magnetic field in the vicinity of the magnetic field generator.
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