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Proceedings Paper

Experimental research on vibration characteristics of four-segment scanning PZT tube using a laser vibrometer
Author(s): Xiumei Liu; Jia Wang; Dacheng Li
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Paper Abstract

A four-segment scanning PZT tube is characterized using a laser vibration measurement system. Several periods of quasi-decay mechanical oscillation are observed in the experiments when the scanning tube is driven by series of step signals. The oscillation frequency is much lower than the lowest resonant frequency calculated base on the reported formula. The mechanism of the oscillation is analyzed. The possible reasons include mechanical inertial or damping, driving power supply impedance properties and the base vibration are discussed. The low resonant frequency of the scanning tube may be the result of its own complicated boundary conditions based on the experimental result of amplitude and frequency properties although there is a considerable difference between theoretical and experimental results. Some possible approaches to reduce or eliminate oscillation are proposed.

Paper Details

Date Published: 1 June 1998
PDF: 5 pages
Proc. SPIE 3411, Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (1 June 1998); doi: 10.1117/12.307751
Show Author Affiliations
Xiumei Liu, Tsinghua Univ. (China)
Jia Wang, Tsinghua Univ. (China)
Dacheng Li, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 3411:
Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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