Method and a device to determine the spatial arrangement of a di

Details Method and a device to determine the spatial arrangement of a di Method and a device to determine the spatial arrangement of a di

1993-12-27

1995-09-26

O'Shea, Sandra L.

Electricity: measuring and testing

Magnetic

Displacement

128777, G01B 714

Patent

active

054536871

ABSTRACT:
A method and a device to determine the spatial arrangement of a directionally sensitive magnetic field sensor, in particular a coil (10) or a Hall probe, in which a number of reference coils (3 to 8) forming a frame of reference are used to generate distinguishable magnetic fields, in which signals induced in the magnetic field sensor (10) by the magnetic fields are measured and in which the spatial arrangement of the magnetic field sensor (10) is determined from the measured signals emitted by the individual reference coils (3 to 8) in which the six reference coils (3 to 8) are arranged to form a three-dimensional frame of reference and in which the position vector of each reference coil cannot be represented as a linear combination with positive factors of the position vectors of the other five reference coils (3 to 8) and in which the scalar product of any position vector in the frame of reference with the position vectors of all six reference coils (3 to 8) vanishes for a maximum of three reference coils, and that the direction vector of the magnetic field sensor (10) is determined from the six measured signals, induced by the six reference coils.

REFERENCES:
patent: 4303077 (1981-12-01), Lewin et al.
patent: 4447207 (1984-05-01), Kataoka et al.
patent: 4595022 (1986-06-01), Schorr
patent: 4661773 (1987-04-01), Kawakita et al.
patent: 4765345 (1988-08-01), Adib
patent: 4776348 (1988-10-01), Bando et al.
patent: 4788987 (1988-12-01), Nickel

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