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Proceedings Paper

Nondestructive testing of aerospace composites with an infrared matrix laser vibrometer
Author(s): James Kilpatrick; Adela Apostol; Vladimir Markov
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Paper Abstract

We describe a hybrid system for real-time, full-field vibrometry, incorporating features of high-speed electronic speckle pattern interferometry (ESPI) and laser Doppler vibrometry (LDV). Based on a 2D interferometric sensor array, comprising 16 × 16 parallel illumination and detection channels, the matrix laser vibrometer (MLV), captures full-field data instantaneously, without beam scanning. The instrument design draws on the advantages of scale offered by modern telecommunications fiber optic and digital electronics. The resulting architecture, comprising a compact measurement probe linked by fiber optic umbilical to a remote electronics unit, facilitates practical application of the system in fullfield measurement of transient vibrations and rapid non destructive testing of composite materials.

Paper Details

Date Published: 17 June 2009
PDF: 8 pages
Proc. SPIE 7389, Optical Measurement Systems for Industrial Inspection VI, 73893F (17 June 2009); doi: 10.1117/12.828570
Show Author Affiliations
James Kilpatrick, MetroLaser, Inc. (United States)
Adela Apostol, MetroLaser, Inc. (United States)
Vladimir Markov, MetroLaser, Inc. (United States)

Published in SPIE Proceedings Vol. 7389:
Optical Measurement Systems for Industrial Inspection VI
Peter H. Lehmann, Editor(s)

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