Roll-independent magnetometer system

Details Roll-independent magnetometer system Roll-independent magnetometer system

G - Physics

01

R

33/97

G01R 33/04 (2006.01) G01R 33/02 (2006.01)

Patent

CA 1295126

Abstract A roll-independent magnetometer which may be used for example in a towed array magnetometer system comprises a first magnetic field sensor 50 having iso-angular flux sensitivity about a roll axis 59 and a second magnetic field sensor 54 having sensitivity along the roll axis 59, the arrangement being such that a component of a magnetic field along the roll axis is measured by the second unidirectional sensor 54 and the component of the field lateral to the roll axis is measured by the first sensor 50. Corrections may be applied for the inclination of the sensor and the angle of dip of the Earth's field. The angle of dip may be measured either in the towing vessel, in the towed body, or provided in look-up tabulated form.

563967

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