A DSP based hard disk drive servo test stand

Author

Guo, Guoxiao ; Huang, Tony ; Tay, Kok Meng ; Weerasooriya, Siri ; Al-Mamun, Abdullah

Author_Institution

Data Storage Inst., Singapore

Volume

34

Issue

2

fYear

1998

fDate

3/1/1998 12:00:00 AM

Firstpage

480

Lastpage

482

Abstract

The paper reports the development of a hard disk drive (HDD) servo test stand developed to demonstrate the principles of a hard disk drive servo system for teaching and research. The test stand consists of a servo written head disk assembly, electronic circuits to process the HDD signal to obtain position information, a 16-bit digital signal processor (DSP) and a spindle motor controller. Hard disk drive servo control related internal signals such as the read signal, peak detector output, servo gate and servo bursts are made available for probing. A host PC is used for down loading commands and controller parameters to the DSP and up-loading the results of the servo system for display and post-processing. Implementation results of a PTOS servo controller and system identification are presented

Keywords

digital signal processing chips; hard discs; servomechanisms; 16 bit; DSP; HDD signal processing; PTOS servo controller; digital signal processor; electronic circuit; hard disk drive; head disk assembly; head positioning; host PC; spindle motor; system identification; teaching; test stand; Assembly; Circuit testing; Control systems; Digital signal processing; Education; Electronic circuits; Electronic equipment testing; Hard disks; Servomechanisms; System testing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.667798

Filename

667798