Citation
Dhf. Harper et al., Piezoelectric stack-based microactuator for hard disk drives, J INF S P S, 1(4), 1999, pp. 329-332
Citations number
7
Categorie Soggetti
Information Tecnology & Communication Systems
Journal title
JOURNAL OF INFORMATION STORAGE AND PROCESSING SYSTEMS
ISSN journal
10998047
→ ACNP
Volume
1
Issue
4
Year of publication
1999
Pages
329 - 332
Database
ISI
SICI code
1099-8047(199912)1:4<329:PSMFHD>2.0.ZU;2-K
Abstract
A uniquely configured and easily manufacturable piezoelectric microactuator
for hard disk drives is presented. The microactuator utilizes two piezoele
ctric stacks placed at the suspension-E block interface, resulting in a dis
placement of +/-1.0 mu m at the suspension tip. Each piezoelectric stack is
made up of 20 layers. For the dynamic behavior of the suspension to be ill
ustrated, static displacements were measured. In addition, a dynamic model
for the microactuator was constructed by using least-squares curve fitting
of a measured frequency response curve.