抄録
This paper reports on the shock evaluation method for a magnetic Hard-Disk Drive (HDD). High-speed cameras are typically used for shock evaluations of HDD's. The cameras can observe the slider lift-off and vibration of arms and disks. However recently, due to decreasing flying height, slider-disk contact often occurs by small slider vibration which can not be observed by high-speed camera. Meanwhile, capacitance measurement between the slider and disk is useful for evaluating the slider behavior in HDD operational shock tests. We established the evaluation method for HDD shock mechanism by high-speed camera observation and slider-disk capacitance measurement at the same time.
