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Proceedings Paper

Vibration measurement by a laser Doppler displacement meter
Author(s): Gianmarco Liotto; Charles P. Wang
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Paper Abstract

The Laser Doppler Displacement Meter (LDDM), has been applied for the measurement of structure dynamics, such as resonance frequency, Bode plot, settling time, etc. in machine tools, rotary machinery, XY-stages, and servo controls. Other applications are in micromachining and in hard disk drive, such as flight height, head gimbal resonance, runout, etc. The basic principle of the LDDM, its comparison to laser interferometer and also vibrometer, major features and application are described.

Paper Details

Date Published: 23 August 1996
PDF: 7 pages
Proc. SPIE 2868, Second International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (23 August 1996); doi: 10.1117/12.248656
Show Author Affiliations
Gianmarco Liotto, Optodyne, Inc. (Italy)
Charles P. Wang, Optodyne, Inc. (Italy)


Published in SPIE Proceedings Vol. 2868:
Second International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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