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Choosing a device to demagnetize a compass
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<blockquote data-quote="Haggi" data-source="post: 104806" data-attributes="member: 6846"><p>I would not use a device like that, doesn't it just scramble the magnetic particles, used to erase tapes? Just big magnets inside?</p><p></p><p>I think (could certainly be wrong) a proper degausser work a little bit different.</p><p>I've always imagined it to have some sort of "pulse" where the polarisation goes from positive to negative really quickly. Hence the need of powercord and a low humming vibration when used.</p><p>They are widely used in workshops to de-magnitize verniers and other tools.</p><p></p><p>Correct me if I'm wrong ?</p></blockquote><p></p>
[QUOTE="Haggi, post: 104806, member: 6846"] I would not use a device like that, doesn't it just scramble the magnetic particles, used to erase tapes? Just big magnets inside? I think (could certainly be wrong) a proper degausser work a little bit different. I've always imagined it to have some sort of "pulse" where the polarisation goes from positive to negative really quickly. Hence the need of powercord and a low humming vibration when used. They are widely used in workshops to de-magnitize verniers and other tools. Correct me if I'm wrong ? [/QUOTE]
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Choosing a device to demagnetize a compass