| 摘要 |
To provide a method for evaluating dynamic mechanical characteristics of a storage medium driving unit in the form of a finished product without taking it apart to pieces and without remodeling it, and to provide a system adapted to the method. A multi-force-component detector is connected to a storage medium driving unit through a mount jig. A multi-force-component detection signal outputted from the multi-force-component detector is supplied to an arithmetic processing circuit through an amplifier. In the arithmetic processing circuit, a vibration generated in the storage medium driving unit can be measured as multi-components of a force. Particularly, rotational displacement and angular velocity of a storage medium rotating mechanism and a read head driving portion can be measured practically.
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