Development of a multi-channel PC-based hard disk drive Bode-plot generator

Author

Choo, Kin Wee ; Guo, Guoxiao ; Chen, Ben M.

Author_Institution

Data Storage Inst., Singapore

fYear

1998

fDate

2-4 Dec 1998

Firstpage

184

Lastpage

188

Abstract

A five-channel generator is developed to obtain the frequency response of a hard disk drive (HDD) by emulating the Bode-plot functions of a dynamic signal analyser (DSA). Written in LabVIEW, it runs on the Windows 95 platform using a standard Wintel PC, a commercial data acquisition (DAQ) board and an external hardware anti-alias filter board. This generator achieves a superior advantage at lower cost through its ability to evaluate the track-following servo loop frequency response of up to five HDDs simultaneously. Besides reducing test-time and providing a degree of accuracy comparable to a commercial DSA, it also includes an option to save all acquired data to disk for further analysis with other software engineering packages

Keywords

Bode diagrams; antialiasing; data acquisition; disc drives; frequency response; hard discs; servomechanisms; Bode-plot generator; LabVIEW; Windows 95 platform; anti-alias filter board; data acquisition board; dynamic signal analyser; frequency response; multi-channel PC-based hard disk drive; software engineering packages; track-following servo loop frequency response; Costs; Data acquisition; Filters; Frequency response; Hard disks; Hardware; Servomechanisms; Signal analysis; Signal generators; Tracking loops;

fLanguage

English

Publisher

ieee

Conference_Titel

Test Symposium, 1998. ATS '98. Proceedings. Seventh Asian

ISSN

1081-7735

Print_ISBN

0-8186-8277-9

Type

conf

DOI

10.1109/ATS.1998.741612

Filename

741612