Method and apparatus for measuring the floating amount of the magnetic
head
    4.
    发明授权
    Method and apparatus for measuring the floating amount of the magnetic head 失效
    用于测量磁头浮动量的方法和装置

    公开(公告)号:US4813782A

    公开(公告)日:1989-03-21

    申请号:US20080

    申请日:1987-02-27

    CPC分类号: G11B5/6005 G11B33/10

    摘要: An apparatus for measuring the floating amount of the magnetic head comprising a single color light source such as laser, a rotating glass disk, a light scanner section, a photoelectric converter element, and an interference light strength computing section (or waveform memory section and computer section). Therefore, static behaviors such as pitch angle and balance of the magnetic head can be measured along with dynamic behaviors such as floating and frequency fluctuations thereof. Even when the floating amount of the magnetic head is extremely low, the measurement can be made accurately in a shorter time period with a high S/N ratio.

    摘要翻译: 一种用于测量包括诸如激光器的单色光源,旋转玻璃盘,光扫描器部分,光电转换元件和干涉光强度计算部分(或波形存储部分和计算机)的磁头的浮动量的装置 部分)。 因此,可以测量静态行为,例如俯仰角和磁头的平衡以及动态行为,例如浮动和频率波动。 即使当磁头的浮动量极低时,可以在S / N比高的较短时间内精确地进行测量。