A theoretical model of slider–disk interaction and AE sensing process for studying interface phenomena and estimating unknown parameters

Abstract

Theoretical models were developed for comprehensively accounting for the AE sensing process in the measurement of interfaces between different sliders and magnetic rigid disks. The models include tribological factors and system dynamics factors such as contact force, sliding velocity, lubricant thickness, topographic parameters, mechanical parameters, system transfer functions and filter design parameters. The theoretical models agree well with the experimental results conducted for different slider–disk interfaces. The models are also well correlated with extensively published experimental results.