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公开(公告)号：EP0169352A2
公开(公告)日：1986-01-29
申请号：EP85106826.2
申请日：1985-06-03
CPC分类号： G11B23/0323 , G11B33/1446
摘要： A cartridge filter for an enclosed magnetic disk drive is disclosed which includes a dual media drum type filter element in a recirculating filter assembly (14, 18) that surrounds the breather filter (27) and delivers air from the periphery of the disk stack (57) to the axial entry of the ventilated disk spindle assembly (45). The cartridge provides an extended media surface within a compact space for frequent cycling of the enclosed air volume through the filter.
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2.发明授权
公开(公告)号：EP0605343B1
公开(公告)日：1999-06-23
申请号：EP93480191.1
申请日：1993-11-19
CPC分类号： G11B19/20 , G11B5/4873 , G11B5/54 , G11B5/6058 , G11B19/04 , G11B21/21 , G11B33/10
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公开(公告)号：EP0169352A3
公开(公告)日：1987-04-01
申请号：EP85106826
申请日：1985-06-03
CPC分类号： G11B23/0323 , G11B33/1446
摘要： A cartridge filter for an enclosed magnetic disk drive is disclosed which includes a dual media drum type filter element in a recirculating filter assembly (14, 18) that surrounds the breather filter (27) and delivers air from the periphery of the disk stack (57) to the axial entry of the ventilated disk spindle assembly (45). The cartridge provides an extended media surface within a compact space for frequent cycling of the enclosed air volume through the filter.
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4.发明公开Fly height servo control of read/write head suspension 失效ServisteuerungFlughöheeiner Lese- /Schreibkopfaufhängevorrichtung。
公开(公告)号：EP0605343A1
公开(公告)日：1994-07-06
申请号：EP93480191.1
申请日：1993-11-19
CPC分类号： G11B19/20 , G11B5/4873 , G11B5/54 , G11B5/6058 , G11B19/04 , G11B21/21 , G11B33/10
摘要： The fly height of read/write heads in multiple disk drives is dynamically adjusted to optimum fly height by a servo loop. The fly height is sensed in real time with a harmonic ratio fly height detector and compared to an optimum or reference fly height. The suspension system of each head is adjusted in accordance with the departure of the fly height of that head from the optimum fly height. The adjustment of the suspension system is accomplished by bonding a piezoelectric film to the flexible suspension arm carrying each head. The fly height is corrected for both radial and circumferential error as the head changes radial and circumferential position relative to the disk surface. The reference fly height, to which each head is moved by the servo loop, may be selectively changed in the fly height servo operation. This can be done to lift the heads away from the disk surface during track seek mode or disk drive sleep mode. The reference fly height can also be changed to lower the heads towards the disk surface during error recovery mode.
摘要翻译： 多个磁盘驱动器中读/写磁头的飞行高度通过伺服回路动态调整到最佳飞行高度。 使用谐波比飞行高度检测器实时感测飞行高度，并与最佳或参考飞行高度进行比较。 每个头部的悬挂系统根据该头部的飞行高度从最佳飞行高度的偏离来调节。 悬挂系统的调整是通过将压电膜粘合到携带每个头部的柔性悬挂臂来实现的。 当头部相对于盘表面改变径向和周向位置时，对于径向和周向误差来校正飞行高度。 可以在飞行高度伺服操作中选择性地改变每个头部被伺服回路移动的参考飞行高度。 这可以在磁道寻道模式或磁盘驱动器睡眠模式下将磁头抬离磁盘表面。 也可以改变参考飞行高度，以便在错误恢复模式期间将磁头降低到磁盘表面。
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公开(公告)号：EP0169352B1
公开(公告)日：1990-04-25
申请号：EP85106826.2
申请日：1985-06-03
CPC分类号： G11B23/0323 , G11B33/1446
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