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How to Degauss Your Hard Drive You may want to learn how to degauss a hard drive if you wish to permanently erase all data stored in it for safe disposal or recycling purposes. 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 intense magnetic field is generated by a machine called a degausser. Subjecting your hard drive to this strong, shifting magnetic field causes its magnetic charge to be reset to a neutral state. When the entire magnetic charge of the memory device is reset to neutral, all the data it contained is erased completely. In case you desire to get a degausser for the removal of data in your drive, be familiar with the different kinds of these devices that rely on different degaussing technologies. Available in the market are the coil, capacitive discharge, or permanent magnet degausser. A coil degausser employs a steel core that’s wrapped in copper wire, which generates a fluctuating electromagnetic field when powered up. Provided that the degausser is powered on, the electromagnetic field stays, which can cause the coil to overheat. To prevent the overheating of the coil, an ac degausser should have a restricted duty cycle. Degaussing devices using large coils are fitted with fans for cooling the coil and prolonging the duty cycle.
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A degausser that’s powered by capacitive discharge technology creates and stores energy in massive capacitors. When switched on, the capacitors are fully stored with energy, which they discharge to produce an immensely strong electromagnetic pulse. Because the burst of energy is short-lived, it does not allow the coil to overheat throughout degaussing. For that reason, capacitive discharge degaussers have a longer duty cycle. The way in which energy is release may be described as a pulse, and that’s why capacitive discharge degaussers may also be referred to as 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 types of degaussers come with different sizes of magnets, with the bigger ones having the capacity to generate very intense magnetic fields. If you seek to degauss any memory object, ascertain that you don’t want it anymore as there’s the possibility your computer won’t recognize it after degaussing. Devices such as hard drives use servo tracks that carry information which helps the computer interface with them for reading purposes. Degaussing erases the servo tracks alongside all data, so there’s no way your computer may recognize the memory device in its degaussed form.