Piezoelectric stack-based microactuator for hard disk drives Academic Article uri icon


  • A uniquely configured and easily manufacturable piezoelectric microactuator for hard disk drives is presented. The microactuator utilizes two piezoelectric stacks placed at the suspension-E block interface, resulting in a displacement of 1.0 m at the suspension tip. Each piezoelectric stack is made up of 20 layers. For the dynamic behavior of the suspension to be illustrated, 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.

published proceedings

  • Journal of Information Storage and Processing Systems

author list (cited authors)

  • Harper, D., De Callafon, R. A., Skelton, R. E., & Talke, F. E.

complete list of authors

  • Harper, DHF||De Callafon, RA||Skelton, RE||Talke, FE

publication date

  • December 1999