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Orientationprocessing device for magnetic particles on disc- shaped magnetic recording medium
Orientationprocessing device for magnetic particles on disc- shaped magnetic recording medium
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机译:盘状磁记录介质上的磁性粒子的取向处理装置
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摘要
A device for orienting magnetic particles contained in a magnetic layer on a disc-shaped magnetic recording medium along the circumference of the recording medium. The magnetic layer is provided on a substrate. The orientation is effected by a magnetic field developed by a pair of permanent magnets and which the recording medium traverses during rotation. The permanent magnets are individually shaped flat and arranged to oppose each other at their pole-faces which are common in polarity. A trailing edge of each magnet located with respect to relative movement of the rotating recording medium extends and aligns with the radius of the recording medium.
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