Apparatus for and method of measuring motion characteristics of head gimbal assembly
AssigneeNHK Spring Co., Ltd.
InventorHajime Tada
Life of this patent
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Abstract
An apparatus correctly measures motion characteristics a head gimbal assembly exhibits when turned in a radial direction of a hard disk. The apparatus includes an assembly support to fixedly support the head gimbal assembly on a center axis that corresponds to a rotation axis around which the head gimbal assembly is turned in actual use, a disk drive to rotatably support the hard disk and turn around a turn axis that is concentric with the center axis on which the head gimbal assembly is fixedly supported, and a turn unit to turn the disk drive around the turn axis, thereby creating a relative turn of the head gimbal assembly with respect to the hard disk.
Claims10
An apparatus for measuring motion characteristics a head gimbal assembly exhibits when turned in a radial direction of a hard disk, comprising:
- an assembly support configured to fixedly support the head gimbal assembly on a center axis that corresponds to a rotation axis around which the head gimbal assembly is turned in actual use;
- a disk drive configured to rotatably support the hard disk and turn around a turn axis that is concentric with the center axis on which the head gimbal assembly is fixedly supported;
- and
- a turn unit configured to turn the disk drive around the turn axis, thereby creating a relative turn of the head gimbal assembly with respect to the hard disk.
A method of measuring motion characteristics a head gimbal assembly exhibits when turned in a radial direction of a hard disk, comprising:
- fixedly supporting the head gimbal assembly on a center axis that corresponds to a rotation axis around which the head gimbal assembly is turned in actual use;
- turning a disk drive rotatably supporting the hard disk around a turn axis concentric with the center axis on which the head gimbal assembly is fixedly supported, thereby creating a relative turn of the head gimbal assembly with respect to the hard disk;
- and
- obtaining data related to the motion characteristics of the head gimbal assembly.
Dependencies are inferred from the claim text.