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Magnetic sweeping, with a towed device producing a magnetic field to trigger magnetic mines. To protect the minesweeper itself against magnetic mines, the hull and superstructure of the ship are made of wood. Other components are made of non-magnetic materials, and any magnetic materials are strictly controlled.
The distance sweep mimics the sound and magnetism of a ship and is pulled behind the sweeper. It has floating coils and large underwater drums. It is the only sweep effective against bottom mines. During the Second World War, RAF Coastal Command used Vickers Wellington bombers Wellington DW.Mk I fitted with degaussing coils to trigger magnetic ...
The modern minesweeper is designed to reduce the chances of it detonating mines itself; it is soundproofed to reduce its acoustic signature and often constructed using wood, fiberglass, or non-ferrous metal, or is degaussed to reduce its magnetic signature. [13]
Magnetic and acoustic minesweeping gear was fitted to the new Gleaves-class minesweepers, while armament was somewhat reduced from the former destroyer configuration to three 5 in guns, no torpedo tubes, two K-guns for launching depth charges, four 40 mm guns, likely Bofors, in two twin mounts, and seven 20 mm Oerlikon antiaircraft guns on the ...
A magnet's magnetic moment (also called magnetic dipole moment and usually denoted μ) is a vector that characterizes the magnet's overall magnetic properties. For a bar magnet, the direction of the magnetic moment points from the magnet's south pole to its north pole, [ 15 ] and the magnitude relates to how strong and how far apart these poles ...
Current through a wire coil produces a time-varying magnetic field that in turn induces currents in conductive objects in the ground. In turn, these currents generate a magnetic field that induces currents in a receiver coil, and the resulting changes in electric potential can be used to detect metal objects. Similar devices are used by hobbyists.