利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

2 条记录 (耗时 0.015 秒)

    Magnetic head tip design to reduce dynamic spacing loss and improve signal quality in high-density helical scanning system
    1.
    发明授权
    Magnetic head tip design to reduce dynamic spacing loss and improve signal quality in high-density helical scanning system 失效
    磁头尖端设计，减少动态间隔损失，提高高密度螺旋扫描系统的信号质量

    公开(公告)号：US6023396A

    公开(公告)日：2000-02-08

    申请号：US996647

    申请日：1997-12-23

    申请人： Kaynam Chun ,  Gregory A. Orton ,  Larry A. Price

    发明人： Kaynam Chun ,  Gregory A. Orton ,  Larry A. Price

    IPC分类号： G11B5/187 ,  G11B5/53 ,  G11B15/62

    CPC分类号： G11B15/62 ,  G11B5/1871 ,  G11B5/53

    摘要： Improved magnetic tip designs attain low spacing loss and enhance the channel output signal while extending head life. One embodiment includes a relatively flat tape contacting surface whose outer edges are modified to provide a tape contacting surface of dumbbell or bow-tie shape, that is, a shape which is narrower at its center near the magnetic gap and wider at its front and rear ends. The desired shape for the tape contacting surface is attained by shaving or beveling the edges of the tip at a relatively sharp angle to remove more material along the top of the curvature of the head near the gap than at the front and rear of the tape contacting surface. This allows air to bleed from under the tape as the head tip travels past the tape. In another embodiment the desired shape is attained by polishing and/or grinding the edges of the tip at a controlled angle as small as 1.0 degree to remove sufficient material to create the desired bow-tie shaped tape contacting surface. Either embodiment may be further modified to define an air knife surface at the leading edge of the tip which reduces the effect of an air shock wave impacting the front of the tip as it initially reaches an operative relationship or "read" position with respect to the tape.

    摘要翻译： 改进的磁头设计获得低间隔损耗，并增强通道输出信号，同时延长头的寿命。 一个实施例包括相对扁平的带接触表面，其外边缘被修改以提供哑铃或蝴蝶结形状的带接触表面，即，在其中心附近靠近磁隙的形状较窄的形状，并且其前后更宽 结束。 胶带接触表面的所需形状是通过以相对尖锐的角度剃刮或斜切尖端的边缘来实现的，以沿着间隙的曲率顶部沿着带的前后方向去除更多的材料， 表面。 这样当头尖穿过磁带时，这就允许空气从磁带下方排出。 在另一个实施例中，通过以小至1.0度的受控角度抛光和/或研磨尖端的边缘来获得所需的形状，以去除足够的材料以产生所需的蝴蝶形带状接触表面。 可以进一步修改任一实施例以在尖端的前缘限定气刀表面，这降低了在尖端的前端碰撞的空气冲击波的影响，因为其最初达到相对于操作关系的操作关系或“读取”位置 胶带。