Title :
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
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;
Conference_Titel :
Test Symposium, 1998. ATS '98. Proceedings. Seventh Asian
Print_ISBN :
0-8186-8277-9
DOI :
10.1109/ATS.1998.741612
