Patent ID: 11887763
Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A system for degaussing a magnetized structure, the system comprising:
an alternating current (AC) waveform generator that provides an AC waveform that decays from an upper level to a lower level over a predetermined amount of time;
an amplifier that converts the AC waveform into a AC signal and amplifies the AC signal;
a first electrical coil coupled to a first circuit, wherein the first electrical coil circumscribes the magnetized structure;
a direct current (DC) waveform generator that provides a DC signal that remains nearly constant over the predetermined amount of time;
a second electrical coil positioned in a chamber of the magnetized structure, wherein the second electrical coil receives the DC signal provided by the DC waveform generator; and
a shielded gauss chamber that encapsulates the first electrical coil, the second electrical coil and the magnetized structure, wherein the shielded gauss chamber prevents magnetic fields from penetrating the magnetized structure;
wherein the first electrical coil induces a decaying magnetic field on the magnetized structure in response to the amplified AC signal and the second electrical coil induces a nearly constant magnetic field on the magnetized structure to convert the magnetized structure into a degaussed structure with an offset magnetic field.