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发明授权
CN100578654C 确定毛刷与磁头接触的装置、系统与方法 失效 - 权利终止

确定毛刷与磁头接触的装置、系统与方法
摘要：
公开了一种确定毛刷与磁头接触的装置、系统与方法。在系统中提供数字生成的信号，并且在毛刷未接触磁头的情况下调整第一增益常量，直至信号达到单位增益为止。在毛刷接触磁头的情况下调整第二增益常量，直至信号再次达到单位增益为止。计算第一与第二增益常量之间的差异。如果该差异满足预定门限，则提供监控消息，以指示毛刷与磁头之间的不充分接触。该消息可以用来警告用户毛刷臂组合件可能无法操作，或者是故障消息，用来指示整个毛刷组合件都需要更换。
摘要（英）：

An apparatus, system, and method are disclosed for determining brush contact with a magnetic head. A digitally generated signal is provided in a system and a first gain constant is adjusted without the brush in contact with the magnetic head until the signal achieves unity gain. A second gain constant is adjusted with the brush in contact with the magnetic head until the signal once again achieves unity gain. The difference between the first and second gain constants is calculated. If the difference satisfies a predetermined threshold, a monitoring message is provided indicating insufficient contact between the brush and the magnetic head. The message may serve to warn the user that the brush arm assembly may be inoperative or a failure message indicating that the entire brush assembly needs to be replaced.

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