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    • 8. 发明专利
    • Heat-assisted magnetic recording device
    • 热辅助磁记录装置
    • JP2011258255A
    • 2011-12-22
    • JP2010129950
    • 2010-06-07
    • Hitachi Ltd株式会社日立製作所
    • NAMBA IRIZOMATSUMOTO TAKUYAKATO YUKIO
    • G11B5/31G11B5/02
    • G11B5/3106G11B5/3136G11B5/40G11B5/607G11B5/6088G11B2005/0021
    • PROBLEM TO BE SOLVED: To prevent a collision against a disk due to thermal deformation of near-field light emission element, and keep a constant distance between a heat-assisted magnetic recording head and the disk.SOLUTION: A heat-assisted magnetic recording device includes a control unit that obtains a deformation around a near-field light emission element 24 from a temperature sensor 26 for measuring a temperature around the near-field light emission element 24, a table in which a relation between the temperature around the near-field light emission element 24 and the deformation is recorded, the temperature measured by the temperature sensor, and the relation between the temperature and the deformation recorded in the table, and adjusts the distance between the heat-assisted magnetic recording head 2 and the disk 1 by driving a floating height adjusting actuator 27 based on the deformation, so as to avoid a contact thereof.
    • 要解决的问题:为了防止由于近场发光元件的热变形而与盘碰撞,并且在热辅助磁记录头与盘之间保持恒定的距离。 解决方案:热辅助磁记录装置包括控制单元,其从用于测量近场发光元件24周围的温度的温度传感器26获得近场发光元件24周围的变形, 其中记录了近场发光元件24周围的温度与变形之间的关系,由温度传感器测量的温度以及记录在表中的温度与变形之间的关系,并且调整 热辅助磁记录头2和盘1通过基于变形驱动浮动高度调节致动器27,以避免其接触。 版权所有(C)2012,JPO&INPIT