发明申请
US20060066985A1 DISK DRIVE WITH CAPACITANCE SENSING OF DISK VIBRATION AND FEEDFORWARD CONTROL FOR REMOVAL OF READ/WRITE HEAD TRACK MISREGISTRATION
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基本信息:
- 专利标题: DISK DRIVE WITH CAPACITANCE SENSING OF DISK VIBRATION AND FEEDFORWARD CONTROL FOR REMOVAL OF READ/WRITE HEAD TRACK MISREGISTRATION
- 专利标题(中):磁带驱动器,具有磁盘振动和前馈控制的电容感测,用于去除读/写头跟踪误差
- 申请号:US10956908 申请日:2004-09-30
- 公开(公告)号:US20060066985A1 公开(公告)日:2006-03-30
- 发明人: Toshiki Hirano , Tetsuo Semba , Matthew White
- 申请人: Toshiki Hirano , Tetsuo Semba , Matthew White
- 主分类号: G11B5/596
- IPC分类号: G11B5/596
摘要:
A data recording disk drive has a plurality of capacitive sensors, each sensor facing a surface of an associated disk, a capacitance sensing circuit for converting the sensed capacitance to a voltage representative of the distance between the sensor and the disk surface, and a feedforward controller that receives the voltage signal. The feedforward controller has a transfer function with gain and phase characteristics designed to match the transfer function from the out-of-plane disk vibration to the position of the read/write head while accounting for the effects of the sensor dynamics and the dynamics of the actuator. The output from the feedforward controller is combined with the output from the disk drive's servo feedback controller so that the effects of disk vibration on track misregistration of the head are removed from the control signal to the actuator.
摘要(中):
数据记录盘驱动器具有多个电容传感器,每个传感器面对相关盘的表面,用于将检测到的电容转换为表示传感器和盘表面之间的距离的电压的电容感测电路,以及前馈控制器 接收电压信号。 前馈控制器具有传递函数,其增益和相位特性被设计成将传播函数从平面外盘振动到读/写头的位置相匹配,同时考虑到传感器动力学和动力学的影响 执行器。 来自前馈控制器的输出与磁盘驱动器的伺服反馈控制器的输出相结合,使得磁盘振动对磁头的磁道重合失调的影响从控制信号中移除到执行机构。
公开/授权文献:
IPC结构图谱:
G | 物理 |
--G11 | 信息存储 |
----G11B | 基于记录载体和换能器之间的相对运动而实现的信息存储 |
------G11B5/00 | 借助于记录载体的激磁或退磁进行记录的;用磁性方法进行重现的;为此所用的记录载体 |
--------G11B5/48 | .磁头相对于记录载体的配置或安装 |
----------G11B5/58 | ..具有在换能工作期间为保持磁头对准记录载体而移动磁头的设施的,例如,补偿记录载体表面的不规则性或轨迹跟踪的 |
------------G11B5/596 | ...用于磁盘上的磁迹跟踪的 |