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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/8842

Title: Scanning LDV using wedge prisms
Authors: Tirabassi, Mario
Rothberg, Steve
Keywords: Laser Doppler vibrometry (LDV)
Scanning
Tracking
Velocity sensitivity
Rotating machinery
Vibration measurement
Issue Date: 2009
Publisher: © Elsevier Ltd.
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.
Abstract: 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.
Description: 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
Version: Accepted for publication
DOI: 10.1016/j.optlaseng.2008.06.003
URI: https://dspace.lboro.ac.uk/2134/8842
Publisher Link: http://dx.doi.org/10.1016/j.optlaseng.2008.06.003
ISSN: 0143-8166
Appears in Collections:Published Articles (Mechanical and Manufacturing Engineering)

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