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How to Degauss Your Hard Drive Learning how to degauss a hard drive may interest you if you intend on permanently remove all the data held in it for purposes of safe disposal or recycling. Degaussing is a kind of demagnetizing that involves subjecting an object like a hard drive to a magnetic field that has a stronger, fluctuating intensity. The strong magnetic field is created via a machine referred to as degausser. When your hard drive is exposed to the intense, fluctuating magnetic field, its charge is reset to magnetically neutral state. In case the magnetic charge of the memory object resets to neutral, the data it holds is lost permanently. If you want to buy a degausser to erase the data in your hard drive, it’s good to know that there are various types of these devices that employ different degaussing technologies. You may buy a coil degausser or the one that relies on capacitive discharge or a permanent magnet. With a coil degausser, there’s a steel core that’s wrapped in copper wire, which when activated, produces an alternating electromagnetic field. Provided that the degausser is powered on, the electromagnetic field stays, which can cause the coil to overheat. To ensure the coil does not overheat, the ac degausser should be used on a limited operating cycle. Degaussing machines that utilize large coils employ coins for cooling purposes, helping extend the duty cycle.
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A degausser that employs capacitive discharge technology produces and preserves energy in large capacitors. When activated, the capacitors are filled with energy, which they then release to create a highly intense electromagnetic pulse. Owing to the short-lived nature of the burst of energy, the coil never overheats over the course of degaussing. The operating cycle for a capacitive discharge degausser is longer for this reason. Owing to the fact that energy is released in the manner of a pulse with capacitive discharge degaussers, the devices are sometimes called pulse degaussers.
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When you need the capacity to use a degausser continuously, such as seven days a week, try the permanent magnet type as it involves no electronic component that’s vulnerable to overheating. These varieties of degaussers are fitted with magnets of different sizes, and the bigger ones are capable of producing extremely intense magnetic fields. If you want to degauss any memory device, be sure that you’re done using it because there’s a chance that it cannot be used again on your computer once degaussed. Devices such as hard drives use servo tracks that carry information which helps the computer interface with them for reading purposes. With degaussing, the servo tracks plus other data are erased, so your computer is unable to interface with the device in its degaussed state.