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To realize higher areal densities towards 10 , the ever decreasing flying height of the slider approaches the near-contact regime. It is essential to monitor head-disk interactions to prevent instability and damage to the head-disk interface. In this study, a piezoelectric sensor array embedded on the slider was proposed for head-disk contact detection. Integrability of the sensor...
A piezoelectric sensor array deployed on the trailing side of the slider was investigated for its capability in head-disk contact detection. Harmonic and transient responses were obtained by finite element analysis. Performance of the triple-sensor array was compared with that of a single sensor configuration. Under excitation of a typical contact force, output voltages of the sensor array of the...
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