Calibration of 3D field sensors

Details Calibration of 3D field sensors Calibration of 3D field sensors

2007-09-25

2007-09-25

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Direction

C324S202000, C702S093000

Reexamination Certificate

active

11251434

ABSTRACT:
An apparatus-based method is disclosed for calibration of a 3D field sensor. The method includes accessing a plurality of samples, where the samples are from the 3D field sensor. Each sample represents a magnitude and an orientation of a three-dimensional field sensed by the 3D field sensor. Using the plurality of samples, a plurality of parameters is determined of an ellipsoid. The determination of the plurality of parameters is performed so that the ellipsoid fits the plurality of samples. A transformation is determined that transforms the ellipsoid into a sphere. The transformation is applied to a sample to create a transformed sample. Apparatus and signal bearing media are also disclosed.

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