Method for removal of bias difference between magnetometers

Details Method for removal of bias difference between magnetometers Method for removal of bias difference between magnetometers

1987-09-14

1988-04-19

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Magnetic

Magnetometers

324244, G01R 3324, G01V 338, G01V 340

Patent

active

047392622

ABSTRACT:
A method for removing bias difference between two or more similarly operated magnetometers is disclosed wherein the inherent bias difference due to the magnetic field of the towing vessel is removed without determining its relative magnitude. Magnetic data is gathered and all time related magnetic events except bias level and slope of the time related magnetic events are removed by mathematical adjustment. Point by point statistical analysis is performed to remove the bias level and the time related slope.

REFERENCES:
patent: 3418568 (1968-12-01), Hearn
patent: 3541458 (1970-11-01), Klund
patent: 3757203 (1973-09-01), Salvi et al.
patent: 4286218 (1981-08-01), Bloomquist et al.

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