Electrical properties and uniformity of bulk degaussing coils
AssigneeData Security, Inc.
InventorsRobert A. Schultz, LeRoy D. Thiel
Life of this patent
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Abstract
A degaussing system for magnetic media is provided, the system comprising an erasing head connected to an LC circuit and the erasing head including an elongated form around which a coil is wound. The coil has two segments which are spaced apart a distance to provide adjustment of the electrical and/or magnetic properties of the coil.
Claims6
A bulk degaussing system comprising an elongated form receiving a magnetic media, a filar coil surrounding said form along its length, said coil having two segments and providing inductance to a resonating circuit and further providing a field within said form for degaussing the media, said two segments of said coil being space apart along the length of said form a distance sufficient to adjust the electrical and/or the magnetic parameters of the coil.
A bulk degaussing system comprising an elongated form for receiving a magnetic media, a filar coil surrounding said form along its length, said coil having multiple segments and providing inductance to a resonating circuit and further providing a filed within said form for degaussing the media, said multiple segments of said coil being spaced apart along the length of said form a distance sufficient to adjust the electrical and/or the magnetic parameters of said coil.
Dependencies are inferred from the claim text.