A comparative analysis of FBG and low-coherence fiber-optic sensors for SHM of composite structures

Zoran Djinovic; Milos Tomic; Marijana Stojkovic

doi:10.1117/12.2010379

11 April 2013 A comparative analysis of FBG and low-coherence fiber-optic sensors for SHM of composite structures

Zoran Djinovic, Milos Tomic, Marijana Stojkovic

Proceedings Volume 8693, Smart Sensor Phenomena, Technology, Networks, and Systems Integration 2013; 86930D (2013) https://doi.org/10.1117/12.2010379
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

Abstract

SHM of composite structures is an emerging technology due to several benefits in terms of higher safety and security of human life, better material understanding, save money. Fiber-optic sensing technologies (FOS) are already proved to be reliable in the family of non-destructive testing (NDT) methods. The most frequently used are fiber-optic Bragg grating (FBG) sensors. However, several drawbacks of FBG cause a permanent improvement in the field of FOS. Within this paper the authors will confront the fiber-optic low-coherence interferometric (LCI) against FBG sensor taking into account experimental results simultaneously obtained by investigation of polyetheretherketon (PEEK) probe on stress by applying the three-point loading test.

Citation Download Citation

Zoran Djinovic, Milos Tomic, and Marijana Stojkovic "A comparative analysis of FBG and low-coherence fiber-optic sensors for SHM of composite structures", Proc. SPIE 8693, Smart Sensor Phenomena, Technology, Networks, and Systems Integration 2013, 86930D (11 April 2013); https://doi.org/10.1117/12.2010379

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