A novel ultra-fine track-seeking servo micro-actuator for hybrid recording

Changsheng Xie; Chun Liu; Haiwei Wang

doi:10.1117/12.649617

15 September 2005 A novel ultra-fine track-seeking servo micro-actuator for hybrid recording

Changsheng Xie, Chun Liu, Haiwei Wang

Proceedings Volume 5966, Seventh International Symposium on Optical Storage (ISOS 2005); 59660L (2005) https://doi.org/10.1117/12.649617
Event: Seventh International Symposium on Optical Storage (ISOS 2005), 2005, Zhanjiang, China

Abstract

In this paper, we propose a micro-actuator which can largely improve the capacity and performance of track servo of hybrid recording. The micro-actuator is not executed by normal piezoelectric materials but by rare earth giant magnetostrictive materials such as TbDyFe. Owing to the material's excellent performance, the micro-actuator can work under low voltage driving power conditions, which means that it can be dispense with high voltage driving power which the piezoelectric materials are indispensably, and can move the recording head with very high speed and accuracy. As a result, extremely high data-track density and fast access time can be achieved. The theoretically analysis and computation of the coupling magnetic field intensity of giant magnetostrictive material were carried out. The computation of micro-actuator indicates that there is 0.085μm deformation for a constant magnetic induction of 300mT, and the resulting deformation is a pure bending which corresponds to the real behavior of a thin film actuator.

Citation Download Citation

Changsheng Xie, Chun Liu, and Haiwei Wang "A novel ultra-fine track-seeking servo micro-actuator for hybrid recording", Proc. SPIE 5966, Seventh International Symposium on Optical Storage (ISOS 2005), 59660L (15 September 2005); https://doi.org/10.1117/12.649617

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Magnetism

Magnetostrictive materials

Microactuators

Actuators

Thin films

Head

Servomechanisms

Show All Keywords

Keywords/Phrases

Search In:

Publication Years