Vibration measurement on composite material with embedded optical fiber based on phase-OTDR

C. Franciscangelis; W. Margulis; C. Floridia; J. B. Rosolem; F. C. Salgado; T. Nyman; M. Petersson; P. Hallander; S. Hällstrom; I. Söderquist; F. Fruett

doi:10.1117/12.2261083

12 April 2017 Vibration measurement on composite material with embedded optical fiber based on phase-OTDR

C. Franciscangelis, W. Margulis, C. Floridia, J. B. Rosolem, F. C. Salgado, T. Nyman, M. Petersson, P. Hallander, S. Hällstrom, I. Söderquist, F. Fruett

Author Affiliations +

Proceedings Volume 10168, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017; 101683Q (2017) https://doi.org/10.1117/12.2261083
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2017, Portland, Oregon, United States

Abstract

Distributed sensors based on phase-optical time-domain reflectometry (phase-OTDR) are suitable for aircraft health monitoring due to electromagnetic interference immunity, small dimensions, low weight and flexibility. These features allow the fiber embedment into aircraft structures in a nearly non-intrusive way to measure vibrations along its length. The capability of measuring vibrations on avionics structures is of interest for what concerns the study of material fatigue or the occurrence of undesirable phenomena like flutter. In this work, we employed the phase-OTDR technique to measure vibrations ranging from some dozens of Hz to kHz in two layers of composite material board with embedded polyimide coating 0.24 numerical aperture single-mode optical fiber.

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C. Franciscangelis, W. Margulis, C. Floridia, J. B. Rosolem, F. C. Salgado, T. Nyman, M. Petersson, P. Hallander, S. Hällstrom, I. Söderquist, and F. Fruett "Vibration measurement on composite material with embedded optical fiber based on phase-OTDR ", Proc. SPIE 10168, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017, 101683Q (12 April 2017); https://doi.org/10.1117/12.2261083

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