Five-axis scanning laser vibrometry for three-dimensional measurements of non-planar surfaces

被引：17

作者：

O'Malley, P. ^{[1
]}

Woods, T. ^{[1
]}

Judge, J. ^{[1
]}

Vignola, J. ^{[1
]}

机构：

[1] Catholic Univ Amer, Dept Mech Engn, Washington, DC 20064 USA

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2009年 / 20卷 / 11期

关键词：

laser Doppler vibrometry; vibration measurement; contoured surface profile; three-dimensional measurement; Poisson's ratio;

D O I：

10.1088/0957-0233/20/11/115901

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel system for directing the beam of a single-point laser Doppler vibrometer (LDV) to measure three-dimensional velocity components of non-planar targets has been developed. A description of this measurement system is presented, along with a discussion of relative merits as compared with conventional scanning LDV systems. Two data sets are presented. In the first, sample measurements of a bulk solid are compared with an analytic model as verification of the measurement technique. In the second, measurements of the surface of sand over a buried anti-tank landmine are presented as a demonstration of the full capability of the system.

引用

页数：9

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