公开(公告)号：US07057385B2

公开(公告)日：2006-06-06

申请号：US10386637

申请日：2003-03-12

申请人： Toru Yokohata ,  Takahiro Imamura ,  Toshiya Fujita ,  Yojiro Ochiai ,  Masahiro Ozeki ,  Naoki Satake

发明人： Toru Yokohata ,  Takahiro Imamura ,  Toshiya Fujita ,  Yojiro Ochiai ,  Masahiro Ozeki ,  Naoki Satake

IPC分类号： G01R33/12

CPC分类号： G11B5/6005 ,  G01R33/1207 ,  G11B5/00 ,  G11B5/012 ,  G11B2005/001

摘要： A magnetic recording medium inspection method detects small protrusions that constitute defects on the surface of a magnetic recording medium. The method includes flying a glide inspection head at a predetermined height over the surface of the moving magnetic recording medium; detecting a contact duration time during which the glide head is in contact with a protrusion on the surface of the magnetic recording medium using a contact detection sensor attached to the glide inspection head; and determining the small protrusion based on the contact duration time.

摘要翻译： 磁记录介质检查方法检测在磁记录介质的表面上构成缺陷的小突起。 该方法包括在移动磁记录介质的表面上以预定高度飞行滑动检查头; 使用附接到所述滑行检查头的接触检测传感器来检测所述滑动头与所述磁记录介质的表面上的突起接触的接触持续时间; 以及基于所述接触持续时间确定所述小突起。