Method and apparatus for using magnetic field

Details Method and apparatus for using magnetic field Method and apparatus for using magnetic field

2007-01-02

2007-01-02

Smith, R. Alexander (Department: 2859)

Geometrical instruments

Indicator of direction of force traversing natural media

Magnetic field responsive

C702S093000

Reexamination Certificate

active

10951913

ABSTRACT:
Provided a method and apparatus for using a magnetic field. The method includes: measuring and storing magnetic field data indicating magnitudes of a magnetic field in different directions at each time by rotating sensors over a space; and checking whether a disturbance of the magnetic field exists, using curve fitting parameters such as amplitude and offset of at least one of magnetic field trajectories formed by the stored magnetic field data.

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