Internal disk drive temperature estimation

Details Internal disk drive temperature estimation Internal disk drive temperature estimation

2006-05-23

2006-05-23

Young, Wayne (Department: 2651)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Reexamination Certificate

active

07050254

ABSTRACT:
Disclosed is a disk drive that provides for internal disk drive temperature estimation. The disk drive includes an actuator, a head attached to the actuator, a disk to store data, a preamplifier connected to the head to amplify read and write signals, and a processor for controlling operations in the disk drive including moving the actuator such that the head is moved to read data from and write data to the disk. The processor under the control of a program is further utilized to calculate a junction temperature (JTemp) based on a breakthrough voltage of the preamplifier, apply a filter to the calculated JTempto compensate for temperature noise, and to estimate an internal disk drive temperature based upon the filtered JTemp.

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Persson, Niclas, et al., “Indirect Tire Pressure Monitoring Using Sensor Fusion”, Society of Automotive Engineers (SAE) paper 2002-01-1250, 2002.

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