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2. 发明授权

US6164118A Calibration disk having discrete bands of calibration bumps 有权
标题翻译：校准盘具有离散的校准凸块
公开(公告)号：US6164118A
公开(公告)日：2000-12-26
申请号：US164208
申请日：1998-09-30
申请人： Shoji Suzuki , Daryl M. Shiraki , Jayadev P. Patel , Dan Frusescu , David Treves , Tuan H. Hua
发明人： Shoji Suzuki , Daryl M. Shiraki , Jayadev P. Patel , Dan Frusescu , David Treves , Tuan H. Hua
IPC分类号： G11B5/00 , G11B5/60 , G11B5/82 , G11B21/21 , G11B33/10
CPC分类号： G11B33/10 , G11B5/6011 , G11B5/82 , G11B21/21 , G11B2005/0016
摘要： A calibration disk for calibrating the fly height of a head, includes spaced circumferencial bands on the disk extending in a concentric fashion from adjacent an outer diameter of the disk to near an inner diameter of the disk. Each of the bands include radial and circumferencial spaced asperity emulating bumps having a population sufficient to produce a constant and continuous output signal from a glide head when the glide head flies lower than a maximum height of the bumps. The height of the bumps within individual bands are substantially uniform, and the average heights of the bumps in each band differ from each other. The configuration of the bumps on the calibration disk advantageously avoids errors caused by disk waviness, runout, and contamination. Further, using the differing heights of the bumps on the calibration disk, a glide head can be calibrated on the glide tester without using an independent fly height measurements for the glide head. Thus, errors in the fly height measurement and the delay in mounting each glide head to a fly height tester are avoided.
摘要翻译：用于校准头部的飞行高度的校准盘包括盘上的间隔的环形带，其以相邻的盘的外径相邻的盘的内径以同心的方式延伸。每个带包括径向和圆周间隔的凹凸模拟凸块，其具有足以在滑动头飞过低于凸块的最大高度时从滑动头产生恒定和连续输出信号的总体。各个波段内的凸块的高度基本上是均匀的，并且每个波段中的凸块的平均高度彼此不同。校准盘上的凸块配置有利于避免由于磁盘波纹，跳动和污染引起的错误。此外，使用校准盘上的凸块的不同高度，可以在滑翔测试仪上校准滑行头，而不用对滑动头进行独立的飞行高度测量。因此，避免飞行高度测量中的错误和将每个滑动头安装到飞行高度测试仪上的延迟。

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