Instrument for the on-line measurement of dynamic parameters for hard-disk drive

Changsheng Xie; Yi-Ming Hu; Xiandeng Pei

doi:10.1117/12.156273

22 September 1993 Instrument for the on-line measurement of dynamic parameters for hard-disk drive

Changsheng Xie, Yi-Ming Hu, Xiandeng Pei

Proceedings Volume 2101, Measurement Technology and Intelligent Instruments; (1993) https://doi.org/10.1117/12.156273
Event: Measurement Technology and Intelligent Instruments, 1993, Wuhan, China

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.

Citation Download Citation

Changsheng Xie, Yi-Ming Hu, and Xiandeng Pei "Instrument for the on-line measurement of dynamic parameters for hard-disk drive", Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); https://doi.org/10.1117/12.156273

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