公开(公告)号：US09202499B2

公开(公告)日：2015-12-01

申请号：US13802386

申请日：2013-03-13

Applicant: Seagate Technology LLC

Inventor： James Dillon Kiely ,  Karl Scheppers ,  Declan Macken ,  Michael Thomas Johnson

IPC: G11B5/60 ,  G11B5/31 ,  G11B5/00

CPC classification number: G11B5/6076 ,  G11B5/3116 ,  G11B5/3133 ,  G11B5/3136 ,  G11B5/314 ,  G11B5/607 ,  G11B5/6088 ,  G11B2005/0021

Abstract: An apparatus is arranged to detect contact between an air bearing surface of a transducer and a medium using a modulated thermal sensor signal. A laser source produces modulated laser light. A thermal sensor is disposed at or near the air bearing surface and is subject to cyclic heating by the modulated laser light. The thermal sensor is configured to produce the modulated sensor signal in response to the cyclic heating.

Abstract translation: 一种装置被布置成使用调制的热传感器信号检测换能器的空气轴承表面和介质之间的接触。 激光源产生调制激光。 热传感器设置在空气轴承表面上或附近，并且通过调制的激光进行循环加热。 热传感器被配置为响应于循环加热产生调制的传感器信号。

公开(公告)号：US20140269819A1

公开(公告)日：2014-09-18

申请号：US13802386

申请日：2013-03-13

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： James Dillon Kiely ,  Karl Scheppers ,  Declan Macken ,  Michael Thomas Johnson

IPC: G01B21/16

CPC classification number: G11B5/6076 ,  G11B5/3116 ,  G11B5/3133 ,  G11B5/3136 ,  G11B5/314 ,  G11B5/607 ,  G11B5/6088 ,  G11B2005/0021

Abstract: An apparatus is arranged to detect contact between an air bearing surface of a transducer and a medium using a modulated thermal sensor signal. A laser source produces modulated laser light. A thermal sensor is disposed at or near the air bearing surface and is subject to cyclic heating by the modulated laser light. The thermal sensor is configured to produce the modulated sensor signal in response to the cyclic heating.

Abstract translation: 一种装置被布置成使用调制的热传感器信号检测换能器的空气轴承表面和介质之间的接触。 激光源产生调制激光。 热传感器设置在空气轴承表面上或附近，并且通过调制的激光进行循环加热。 热传感器被配置为响应于循环加热产生调制的传感器信号。