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Proceedings Paper

Laser Doppler velocimeter measurement system for dynamic characterization of disks
Author(s): Jia Wang; Enyao Zhang
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Paper Abstract

A laser Doppler velocimeter (LDV) based on laser heterodyne interferometry is described in this paper and has been used to measure the dynamic characteristics of disks. The digital linear phase low pass filter and differential filter are designed and used in the data processing system. The measurement results on the dynamic characteristics, velocity, acceleration and runout in axial direction of the hard disk at 3600 rpm are given.

Paper Details

Date Published: 8 September 1994
PDF: 3 pages
Proc. SPIE 2358, First International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (8 September 1994); doi: 10.1117/12.185315
Show Author Affiliations
Jia Wang, Tsinghua Univ. (China)
Enyao Zhang, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 2358:
First International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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