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热词
    • 3. 发明授权
    • Actuator resonance tester for a disk drive
    • 用于磁盘驱动器的执行器谐振测试器
    • US5979249A
    • 1999-11-09
    • US93936
    • 1998-06-09
    • Ja Choon KooTu NguyenWilson Long
    • Ja Choon KooTu NguyenWilson Long
    • G11B21/16G11B33/08G11B33/10G11B5/00
    • G11B33/08G11B33/10
    • An actuator resonance tester is provided for testing the resonance of an actuator arm in a hard disk drive device. The tester includes an actuator arm, a pivot, one or more weights, a voice coil, a voice coil motor, an accelerometer, and a processor. The one or more weights are formed on the actuator arm to simulate the mass of at least one read/write head. The base and the test housing are affixed to either end of the pivot to provide it with proper boundary conditions to simulate the boundary conditions of a fully-assembled hard disk drive device. The voice coil and the voice coil motor move the actuator arm rotationally around the pivot. The accelerometer is placed on the actuator arm to measure the horizontal acceleration of the actuator arm. The processor determines the resonance of the actuator arm based on the arm's measured horizontal acceleration. In this way, the resonance of the actuator arm can be tested without the need to construct the entire hard disk drive device.
    • 提供致动器谐振测试器用于测试硬盘驱动装置中的致动器臂的谐振。 测试仪包括致动器臂,枢轴,一个或多个重物,音圈,音圈马达,加速度计和处理器。 一个或多个重物形成在致动器臂上以模拟至少一个读/写头的质量。 基座和测试壳体固定在枢轴的任一端,为其提供适当的边界条件,以模拟完全组装的硬盘驱动装置的边界条件。 音圈和音圈电机围绕枢轴转动致动器臂。 加速度计放置在执行器臂上以测量执行器臂的水平加速度。 处理器基于臂的测量水平加速度来确定致动器臂的共振。 以这种方式,可以测试致动器臂的共振,而不需要构造整个硬盘驱动装置。