公开(公告)号：US20110299367A1

公开(公告)日：2011-12-08

申请号：US13153073

申请日：2011-06-03

申请人： IRIZO NANIWA ,  Takuya Matsumoto ,  Yukio Kato

发明人： IRIZO NANIWA ,  Takuya Matsumoto ,  Yukio Kato

IPC分类号： G11B11/00

CPC分类号： G11B5/3106 ,  G11B5/3136 ,  G11B5/40 ,  G11B5/607 ,  G11B5/6088 ,  G11B2005/0021

摘要： There is provided a thermally assisted magnetic recording device capable of preventing collision between a thermally assisted magnetic recording head and a disk due to thermal deformation of a near-field transducer. The thermally assisted magnetic recording device includes a temperature sensor for measuring the temperature in the vicinity of the near-field transducer, a table that stores the relationship between temperature and deformation in the vicinity of the near-field transducer, and a control unit. The control unit calculates the deformation in the vicinity of the near-field transducer, from the temperature measured by the temperature sensor and the relationship between temperature and deformation stored in the table. Then, the control unit drives the flying height control actuator according to the calculated deformation to control the distance between the thermally assisted magnetic recording and the disk in order to avoid contact between them.

摘要翻译： 提供了一种热辅助磁记录装置，其能够防止由于近场换能器的热变形引起的热辅助磁记录头与盘的碰撞。 热辅助磁记录装置包括用于测量近场换能器附近的温度的温度传感器，存储近场换能器附近的温度与变形之间的关系的表以及控制单元。 控制单元根据由温度传感器测量的温度和存储在表中的温度与变形之间的关系来计算近场换能器附近的变形。 然后，控制单元根据计算出的变形驱动飞行高度控制致动器，以控制热辅助磁记录与盘之间的距离，以避免它们之间的接触。