Static and dynamic characteristics of active-head sliders

Lizhi Su, Masayuki Kurita, Junguo Xu, Koji Kato, Koshi Adachi, Yoshihiko Miyake

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Active-head sliders with a unimorph piezoelectric actuator for flying height control were experimentally evaluated. It was found that the stroke of the actuator is 1.3 to 1.5 nm/V without flying over the disk. The adjustment amount of flying height is about 1.4 nm/V when the active-head slider is flying over the disk. It was found that flying height could be reduced and decrease from 24 to 10 nm by applying 10 V to the actuator under flying condition. Both the air pressure generated at the active-pad and the impact pressure due to the head/disk contact must be taken into account for precise control of flying height.

Original languageEnglish
Pages (from-to)717-723
Number of pages7
JournalTribology International
Issue number6-7
Publication statusPublished - 2005 Jun


  • Active-head sliders
  • Flying height
  • Flying-height adjustment

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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