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
      Countermeasures
      Magnetic & Electric Fld Detection & Detectors
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE