Magnetic process for determining a trajectory for finding a magn

Details Magnetic process for determining a trajectory for finding a magn Magnetic process for determining a trajectory for finding a magn

1988-01-22

1989-12-05

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

324247, 364462, G01B 714, G01R 3302

Patent

active

048855367

ABSTRACT:
Magnetic process for determining the trajectory of a moving vehicle for finding a fixed or moving magnetic object and apparatus for performing the process.
The apparatus comprises magnetometers for measuring at least p independent components of the gradient of the local magnetic field, in which p is an integer equal to the number of dimensions of the space in which the moving vehicle is displaced, a circuit for storing a scalar criterion which is a function of at least one of the components of the measured gradient, a circuit for calculating the direction (.theta., .psi.) maximizing the criterion as a function of the measured gradient and a display, for use in guiding the vehicle.

REFERENCES:
patent: 4396885 (1983-08-01), Constant
patent: 4427943 (1984-11-01), Cloutier et al.
patent: 4438401 (1984-03-01), Iwamoto et al.
patent: 4489274 (1984-12-01), Berlincourt
patent: 4492923 (1989-01-01), Byram
patent: 4600883 (1986-07-01), Egli et al.

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