Patent ID: 7262601
Filing Date: 2007-08-28
Classification: G01V

Abstract:
1. An aircraft equipped for airborne vector magnetic exploration surveys, comprising: a gravity gradiometer including an internal navigation system of an aircraft; three magnetometers orthogonally mounted to measure the components of the earth's vector magnetic field in the aircraft reference frame; two rotation sensors provided by the internal navigation system, and mounted to measure the angular orientation of the aircraft; and, a recording system to record the measurements of the magnetometers and rotation sensors; wherein, correction coefficients computed from calibration survey data and the measured angular orientation is used to remove permanent magnetic effect, inducing magnetic effect and eddy-current magnetic effect of the aircraft from the measured components and to orientate the measured components into the earth's reference frame, so to derive true vector magnetic data from airborne surveys, that is vector aero-magnetic (VAM) data.