Method for testing the acceptability of a magnetic read sensor

Details Method for testing the acceptability of a magnetic read sensor Method for testing the acceptability of a magnetic read sensor

2008-07-01

2011-10-18

Whittington, Kenneth J (Department: 2858)

Electricity: measuring and testing

Magnetic

Magnetic information storage element testing

Reexamination Certificate

active

08040131

ABSTRACT:
A method for testing a magnetic head to determine whether the magnetic head is unacceptably affected by temperature variations. The test includes testing the magnetic head at different temperatures and measuring either or both of a signal amplitude and a signal asymmetry of a signal from the magnetic head at the different temperatures. If signal amplitude or signal asymmetry vary excessively as a result of the temperature change then the head can be scrapped.

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