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Proceedings Paper

Instrument for the on-line measurement of dynamic parameters for hard-disk drive
Author(s): Changsheng Xie; Yi-Ming Hu; Xiandeng Pei
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Paper Abstract

A computer based instrument for the measurements of dynamic parameters of hard disk drives(HDD)-Multi-Parameter On-line Test System of Disk Drive (MOTSODD) has been developed. Several new methods and techniques were used to solve the problems of measuring some specific parameters such as the static stiffness of positioning system the structure resonance frequency of the positioning mechanism and the statistical average power consumption of the voice-coil-motor(VCM) especially when the HDD is in operation. More than 20 parameters of the positioning system and the spindle system of the HDD can easily be obtained. The hardware is a complete integration of the high speed data acquisition unit the arbitrary waveform synthesizer and the multi-interface controller. A parameter measurement methods library has been established to meet the complicated measurement requirements. The virtual panel technique and a high speed graphic environment were developed to enhance the performances of the instrument.

Paper Details

Date Published: 22 September 1993
PDF: 6 pages
Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); doi: 10.1117/12.156273
Show Author Affiliations
Changsheng Xie, Huazhong Univ. of Science and Technology (China)
Yi-Ming Hu, Huazhong Univ. of Science and Technology (China)
Xiandeng Pei, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 2101:
Measurement Technology and Intelligent Instruments
Li Zhu, Editor(s)

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