Accession Number : ADD017953
Title : Advanced Degaussing Coil System.
Descriptive Note : Patent, Filed 25 Mar 94, patented
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Holmes, John J ; Steffey, Shirley
Report Date : 09 Jan 1996
Pagination or Media Count : 4
Abstract : The static magnetic field signature of a sea-going vessel is reduced by supply of degaussing current to pairs of loop coils adjacent to the port and starboard sides of the vessel hull. The coils of each pair are positioned at equal angles to a vertical plane extending longitudinally along the keel of the hull. The degaussing currents in the respective coils of each pair are simultaneously varied with respect to amplitude and polarity in accordance with geometrical heading of the vessel and changes in its roll and pitch orientations.
Descriptors : *COILS, *SHIP HULLS, *MAGNETIC SIGNATURES, *DEGAUSSING, MAGNETIC FIELDS, ROLL, PITCH(MOTION), SHIP MOTION, ELECTRONIC COUNTERMEASURES
Subject Categories : Marine Engineering
Magnetic & Electric Fld Detection & Detectors
Electricity and Magnetism
Distribution Statement : APPROVED FOR PUBLIC RELEASE