Three axis coil magnetic minesweeping system
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsJerry J. Rosborough, William A. Rhyne
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Abstract
A magnetic influence minesweeping system and a method are disclosed wherein hree large area air core solenoid coils are arranged with their planes in mutually orthogonal relation. A battery power supply and alternating current pulse generator are utilized to successively energize each coil and generate three magnetic fields having mutually perpendicular principal axes.
Claims4
A magnetic influence minesweeping system comprising in combination:
- a coil assembly including first, second, and third open,
- rectangular solenoid coils fastened together so as to lie in three, mutually orthogonal planes including a horizontal plane and two vertical planes;
- a source of direct current electrical voltage;
- pulse supply means, connected to said source of direct current electrical voltage and to said coil assembly, for providing pulses of alternating current voltage to said solenoid coils;
- and
- control means, connected to said pulse supply means, for initiating said pulses from a position remote from said coil assembly.
A method of sweeping magnetic influence mines that are directional in sensitivity and are of unknown orientation, said method comprising the steps of:
- providing first, second, and third air core solenoid coils of large transverse dimensions compared with axial length and disposed in mutually orthogonal planes;
- energizing said first air core solenoid coil for a first predetermined time period with alternating electrical current to generate a first magnetic field having a first principal axis;
- energizing said second air core solenoid coil for a second predetermined time period with alternating electrical current to generate a second magnetic field having a second principal axis perpendicular to said first principal axis;
- and
- energizing said third air core solenoid coil for a third predetermined time period with alternating electrical current to generate a third magnetic field having a third principal axis perpendicular to each of said first and second principal axes.
Dependencies are inferred from the claim text.