Lifetime prediction method for piggyback PZT actuator

Authors
Nakamura, S Naniwa, I Sato, K Yasuna, K Saegusa, S
Citation
S. Nakamura et al., Lifetime prediction method for piggyback PZT actuator, IEEE MAGNET, 37(2), 2001, pp. 940-943
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
37
Issue
2
Year of publication
2001
Part
1
Pages
940 - 943
Database
ISI
SICI code
0018-9464(200103)37:2<940:LPMFPP>2.0.ZU;2-4
Abstract
The experimental lifetime predictive equation for a piggyback PZT actuator was derived. A piggyback actuator is a fine actuator of a dual-stage servo system that is essential to increase the recording density of hard disk dri ves (HDD's), The obtained equation agrees with Arrhenius' equation. The lif etime of our developed actuator was estimated to be longer than 5 years und er heavy use conditions. This lifetime prediction method is useful fur desi gning piggyback PZT actuators for high-performance HDD's.