Laser Doppler vibrometry for simultaneous multiple measurements

Raffaella Di Sante; Lorenzo Scalise

doi:10.1117/12.456085

14 February 2002 Laser Doppler vibrometry for simultaneous multiple measurements

Raffaella Di Sante, Lorenzo Scalise

Proceedings Volume 4578, Fiber Optic Sensor Technology and Applications 2001; (2002) https://doi.org/10.1117/12.456085
Event: Environmental and Industrial Sensing, 2001, Boston, MA, United States

Abstract

A measurement system based on a single-mode fiber optic interferometer has been developed to simultaneously measure the vibrations in terms of velocity. The fiber interferometer reported has been realized with the purpose of using it as the basic measuring sensor of the system. 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 shifting devices, which usually present different inconveniences. The sensor has been calibrated against a commercial laser vibrometer. The first system prototype developed and presented in this work is capable to measure the vibration on two points simultaneously.

Citation Download Citation

Raffaella Di Sante and Lorenzo Scalise "Laser Doppler vibrometry for simultaneous multiple measurements", Proc. SPIE 4578, Fiber Optic Sensor Technology and Applications 2001, (14 February 2002); https://doi.org/10.1117/12.456085

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