公开(公告)号：US11468918B1

公开(公告)日：2022-10-11

申请号：US17322266

申请日：2021-05-17

Applicant: Seagate Technology LLC

Inventor： Huazhou Lou ,  YiMin Niu ,  Eric John McCalla ,  Dipeshkumar J. Purani

IPC: G11B33/14 ,  G11B33/04 ,  G11B23/02

Abstract: A data storage drive includes a rotatable data storage medium, and a head communicatively couplable to the data storage medium. The head includes a temperature sensor and a heater. The data storage drive also includes a ramp for supporting the head when the head is moved away from the data storage medium, and a controller. The controller is configured to obtain first temperature sensor measurement values for different head heater power settings when the head is positioned on the ramp, and is configured to determine an internal pressure of the data storage drive as a function of the first temperature sensor measurement values.