...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Magnetics, IEEE Transactions on >Where Tape and Hard-Disk Technology Meet: The HDD Head–Tape Interface
【24h】

Where Tape and Hard-Disk Technology Meet: The HDD Head–Tape Interface

机译：磁带和硬盘技术的结合之处：HDD头带接口

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, we study the mechanical interface between a hard-disk drive (HDD) head and magnetic recording tape to enable the use of HDD heads to investigate future tape operating points. Tape surface height measurements were obtained using an interferometer microscope for varying wrap angle configurations, tape velocities, and tape tensions. Simultaneously, the readback signal from the read element of the HDD head was captured to study the quality of the contact between the tape and the head. The signal-to-noise ratio (SNR) and bit-error rate (BER) performance of pseudorandom bit sequence (PRBS) data readback experiments are presented. An analytical model is described for estimating the magnetic spacing from the PRBS readback spectrum. In contrast to current commercial tape heads, the HDD head surface has a pronounced topography containing cavities. When tape passes in close proximity, subambient pressures are formed inside these cavities and the resulting pressure differences force the tape toward the head and deform the tape into remarkable shapes. For the topography of the HDD head used, the shape of tape is predominantly determined by the leading and trailing wrap angles. Readback was obtained only in the backward direction (i.e., opposite to the direction of operation in an HDD), with positive leading but negative trailing wrap angles. Better readback is obtained for shallow wrap angles, lower tape velocity, and higher tape tension. Good readback is obtained for leading and trailing wrap angles and −0.2°, respectively. Fits of the analytical model to the spectrum of the readback signal of PRBS data lead to a magnetic spacing estimate of nm. At 600 kb/in linear density, we measured 11 dB SNR and
机译：在本文中，我们研究了硬盘驱动器（HDD）磁头和磁记录磁带之间的机械接口，以便能够使用HDD磁头来研究未来的磁带工作点。使用干涉仪显微镜获得带表面高度测量值，以改变包角配置，带速度和带张力。同时，捕获了来自HDD磁头的读取元件的回读信号，以研究磁带和磁头之间的接触质量。提出了伪随机比特序列（PRBS）数据回读实验的信噪比（SNR）和误码率（BER）性能。描述了一种分析模型，用于根据PRBS回读频谱估算磁间距。与当前的商用磁带头相反，HDD头表面具有明显的形貌，其中包含空腔。当磁带紧挨通过时，在这些腔体内部会形成环境压力，并且由此产生的压力差会将磁带推向磁头，并使磁带变形为明显的形状。对于所用HDD磁头的形貌，磁带的形状主要由前包角和后包角决定。仅在向后方向（即与HDD中的操作方向相反）获得读回，并且前导包角为正，但尾包角为负。对于较浅的包角，较低的磁带速度和较高的磁带张力，可以获得更好的回读。分别对于前包裹角和尾包裹角和-0.2°，可以获得良好的回读。将分析模型与PRBS数据的回读信号频谱进行拟合，得出的磁间距估计为nm。在600 kb / in的线密度下，我们测得的信噪比为11 dB，

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号