Title :
Study on lifetime prediction method for piggyback PZT actuator
Author :
Nakamura, S. ; Naniwa, I. ; Sato, K. ; Yasuna, K. ; Saegusa, S.
Author_Institution :
Hitachi Ltd., Japan
Abstract :
The experimental lifetime predictive equation for a piggyback PZT actuator was obtained. It agrees with Arrhenius´ equation. The lifetime of our developed actuator was estimated longer than 5 years under heavy conditions. This lifetime prediction method is useful to design the piggyback PZT actuator for HDDs.
Keywords :
disc drives; hard discs; lead compounds; piezoelectric actuators; Arrhenius equation; PZT; PbZrO3TiO3; dual-stage servo system; hard disk drive; lifetime prediction; magnetic head positioning; piggyback PZT actuator; Actuators; Assembly; Equations; Fatigue; Hard disks; Life testing; Magnetic heads; Memory; Prediction methods; Servomechanisms;
Conference_Titel :
Asia-Pacific Magnetic Recording Conference, 2000. APMRC 2000
Conference_Location :
Tokyo, Japan
Print_ISBN :
0-7803-6254-3
DOI :
10.1109/APMRC.2000.898932
