We are currently experiencing intermittent issues impacting performance. We apologize for the inconvenience.
By Topic

Microfabricated electrostatic actuators for hard disk drives

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Horsley, D.A. ; DiCon Fiberopt. Inc., Berkeley, CA, USA ; Horowitz, R. ; Pisano, A.P.

A dual-stage servo system which utilizes a high-bandwidth secondary actuator has been proposed for magnetic hard disk drives. Microfabricated actuators are promising candidates for this secondary actuator, since they offer the benefits of extremely small size and weight and may be batch fabricated for reduced production cost. This paper presents the design of an electrostatic microactuator which produces sufficient output force to move a 1.6-mg picoslider from a conventional disk drive at frequencies above 2 kHz. A linear second-order actuation model is developed and fit to experimental data. The prototype device is shown to have an open-loop resonance frequency of 532 Hz when loaded with the picoslider, and a DC-voltage-to-position gain of 0.12 μm/V. A closed-loop bandwidth of 2.5 kHz is achieved using a simple PD controller

Published in:

Mechatronics, IEEE/ASME Transactions on  (Volume:3 ,  Issue: 3 )