Publication
IEEE Transactions on Magnetics
Paper

Precise optical measurement of slider dynamics

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Abstract

A two-beam interferometric technique is used to measure the fluctuations in the flying height of an air bearing slider above a quartz disk. Air bearing variations of less than 0. 5 nm are measured from 0 to 100 kHz. Mode excitation is only from disk runout and other sources natural to the rigid disk recording environment. The dynamic behavior of the leading and trailing edges of a slider is shown. Both suspension and air bearing resonant modes are observed at the slider and their frequencies measured.

Date

01 Sep 1986

Publication

IEEE Transactions on Magnetics

Authors

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