Paper
14 February 2005 Multipoint optical fiber vibrometer
Raffaella Di Sante, Lorenzo Scalise, Enrico Primo Tomasini
Author Affiliations +
Proceedings Volume 5776, Eighth International Symposium on Laser Metrology; (2005) https://doi.org/10.1117/12.611908
Event: Eighth International Conference on Laser Metrology, 2005, Merida, Mexico
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.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Raffaella Di Sante, Lorenzo Scalise, and Enrico Primo Tomasini "Multipoint optical fiber vibrometer", Proc. SPIE 5776, Eighth International Symposium on Laser Metrology, (14 February 2005); https://doi.org/10.1117/12.611908
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KEYWORDS
Doppler effect

Interferometers

Signal detection

Vibrometry

Beam splitters

Optical fibers

Fiber lasers

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