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Proceedings Paper

Multipoint optical fiber vibrometer
Author(s): Raffaella Di Sante; Lorenzo Scalise; Enrico Primo Tomasini
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Paper Abstract

A simple fiber optic Michelson interferometer for vibration measurement and analysis is presented in this paper. It has been conceived and realized with the purpose of using it as the basic measuring element of a complete system for multiple point vibration measurements. One of its main features is that it is operated in the homodyne mode allowing the detection of the direction of motion without using Bragg cells or other optical or mechanical frequency shifting devices, which usually present some inconveniences (alignment problems, dimensions, complexity of the signal processing electronic and costs). The capability of the fiber interferometer in detecting periodic signals and a comparison with a commercial laser Doppler vibrometer is reported.

Paper Details

Date Published: 14 February 2005
PDF: 7 pages
Proc. SPIE 5776, Eighth International Symposium on Laser Metrology, (14 February 2005); doi: 10.1117/12.611908
Show Author Affiliations
Raffaella Di Sante, Univ. degli Studi di Ancona (Italy)
Lorenzo Scalise, Univ. degli Studi di Ancona (Italy)
Enrico Primo Tomasini, Univ. degli Studi di Ancona (Italy)


Published in SPIE Proceedings Vol. 5776:
Eighth International Symposium on Laser Metrology
R. Rodriguez-Vera; F. Mendoza-Santoyo, Editor(s)

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