| 摘要 |
PROBLEM TO BE SOLVED: To maintain high reliability at low costs. SOLUTION: In the disk driving device 70, a spindle motor 13 for driving the rotation of a magnetic disk 71 is disposed roughly in the center, and a VCM 22 for rotating an arm 21 having head 24 attached to record/reproduce information in the magnetic disk 71 to move the head 24 in the radial direction of the magnetic disk 71 is disposed at a right corner below a chassis 2. A 3-axis sensor 81 is disposed in the chassis 2 to detect the acceleration of each direction of X, Y and X axes orthogonal to one another. A servo control unit detects the fall of the disk driving device 70 based on the acceleration of each direction of the X, Y and Z axes. A CPU detects shocks to the disk driving device 70 based on the acceleration of each direction of the X, Y and Z axes. For example, the invention is applied to a HDD (hard disk drive). COPYRIGHT: (C)2006,JPO&NCIPI
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