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Scanning LDV using wedge prisms

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journal contribution
posted on 2011-09-22, 09:49 authored by Mario Tirabassi, Steve Rothberg
Recent work on laser vibrometry proposed a mathematical model for the velocity sensed by a laser beam incident in an arbitrary direction on a rotating target undergoing arbitrary vibration. A single arbitrary point along the line of incidence of the laser beam must be known, together with an arbitrary known point along the line of the beam and the main purpose of this paper is to introduce a general procedure to determine both. This new procedure is applied to a novel, scanning LDV arrangement in which rotating wedge prisms are used in order to track a rotating component. Special attention is given to the time-dependent laser beam orientation using a vector description of refraction to enable concise expression. Experimental data are presented for the first time suggesting advantages over the convention dual-mirror system currently used for tracking LDV.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

TIRABASSI, M. and ROTHBERG, S., 2009. Scanning LDV using wedge prisms. Optics and Lasers in Engineering. 47 (3-4), March-April 2009, pp. 454-460.

Publisher

© Elsevier Ltd.

Version

  • AM (Accepted Manuscript)

Publication date

2009

Notes

This article was published in the journal, Optics and Lasers in Engineering [© Elsevier Ltd.] and the definitive version is available at: http://dx.doi.org/10.1016/j.optlaseng.2008.06.003

ISSN

0143-8166

Language

  • en