| 摘要 |
The invention relates to a demagnetizing device for magnetic recording media, so-called pancakes, wound up in the form of a tape, which device consists of a cylindrical coil (1), the field distribution (3) of which extends essentially parallel to the winding plane (2) of the recording medium (4), while the pancakes (4) can be inserted into the coil (1) in the axial direction by a lifting device (5). The compact form enables an entire pancake stack to be demagnetized at the same time (FIGURE).
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