The current invention is a Capacitor Discharge Magnet Degausser Mechanism for Destroying the Functionality of Data Bearing Components of Magnetic Media Data Bearing Devices. It provides reconciliation and tracking with a unique identification tag using a secure and proprietary database, destruction of the functionality of the data bearing components of magnetic media data bearing devices using an automated movement system, a NSA Certified high strength Capacitor Discharge Magnet degausser, digital pre-degaussing and post-degaussing readings to indicate the completion of the process of destroying the functionality of the data bearing components including storage of readings and containment of the remains of the magnetic media devices for verification.

A circuit comprises a multiphase gate driver to be coupled to a multiphase inverter for driving a multiphase motor. For each phase, the multi-phase gate driver is to, in accordance with a pulse width modulation (PWM) control signal, turn on and off a high side transistor of a given pair of high and low side transistors of the multiphase inverter, discontinue the PWM control signal turn to the high side transistor of the given pair and turn off the high side transistor of the given pair, and turn on the low side transistor of the given pair until a current level through the low side transistor falls below a threshold, at which time, turn off the low side transistor.

Apparatus and methods to reduce unwanted magnetic fields and unwanted motion in precision instruments are described. A coil assembly that is used to generate an opposing magnetic field can include a first coil configured to generate a static magnetic field and a second coil configured to generate a time-varying magnetic field. The first and second coils can be in close proximity and sized to suppress magnetic fields over a large localized region. The first coil can be connected to a choke to increase its impedance seen by the second coil.

De-magnetization protection is provided for electro-permanent magnets during information handling system manufacture and use by monitoring thermal conditions at the information handling systems to detect a thermal state associated with de-magnetization and commanding the electro-permanent magnets to an off state so that both magnets in the electro-permanent magnet have opposing polarities. The opposing polarities tend to stabilize magnet polarity to prevent de-magnetization during increased temperatures. Normal operations are then re-enabled once temperatures decrease.

A distributed demagnetizing coil system, a shielding device, and a demagnetizing method. The system includes turns of demagnetizing coils evenly wound on each shielding surface of a shielding body in the shielding device at intervals and connecting wires provided on outer side of the shielding surface in an inflection manner. One half of each turn is located on inner side of the wound shielding body and the other half of each turn s located on outer side of the wound shielding body for providing corresponding demagnetizing magnetic fields to form a closed magnetic flux loop. One half of each connecting wire is connected to the corresponding demagnetizing coil, the other half of each connecting wire is reversely inflected along an original path and is connected to a power supply module, so that corresponding demagnetizing current is introduced into each demagnetizing coil connected to the connecting wire.

Provided is a display device for a forming device that forms a heated metal material using a metal member. The display device proposes and displays a variable parameter that is adjustable.

An integrated circuit for demagnetizing an inductive load includes a first switch to control current supplied by a voltage supply to the inductive load. A Zener diode includes an anode connected to a control terminal of the first switch and a cathode connected to the voltage supply. A second switch includes a control terminal and first and second terminals. A temperature sensing circuit is configured to sense a temperature of the first switch and to generate a sensed temperature. A comparing circuit includes inputs that receive a reference temperature and the sensed temperature and an output connected to the control terminal of the second switch.

Systems, methods, and a computer readable medium are provided for demagnetizing a pipe within an operational pipeline. An inline demagnetization device can be positioned in a first location within a pipe of an operational pipeline. The inline demagnetization device can be positioned via a plurality of positioning mechanisms operable to position the inline demagnetization device at one or more locations within the pipe. The inline demagnetization device can transmit magnetic fields into the pipe at the first location via a plurality of magnetic field conductors configured within the inline demagnetization device. The transmitted magnetic field can cause a reduction of magnetization present in the pipe. The inline demagnetization device can be positioned in a second location to further reduce the magnetization present at the second location.

A device (2) for demagnetizing and for measuring the magnetic signature of a stationary hull (4) and for simulating a magnetic field, including a demagnetization coil assembly (8), a magnetic field sensor assembly (10) and a simulation coil assembly (12a, 12b, 12c), which can be positioned next to the hull (4) in a horizontal manner on one side and the cross-sectional areas of the demagnetization coils (8) and of the simulation coils (12a, 12b, 12c) being disposed in the longitudinal direction of the hull (4) with horizontally oriented surface normals. The demagnetization coils (8) produce an alternating magnetic field; the simulation coils (12a, 12b, 12c) produce a stationary simulated magnetic field in all three dimensions.

Systems and methods for reversing a magnetization in a ferromagnet include a nanometer-scale cylindrical ferromagnetic sample having a height to diameter aspect ratio on the order of 2 or greater. A temporally-varying external field comprising an r.f. Pi pulse is applied to the ferromagnetic sample to cause a precession magnetization vector inclined at an angle with respect to the longest axis of the ferromagnetic sample to continuously rotate around the longest axis. One or more parameters of the temporally-varying external field is continuously adjusted based on at least magnetization dynamics of the ferromagnetic sample and/or an angular dependence of a precession frequency of the ferromagnetic sample.