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Sensors
Volume 21
Issue 15
10.3390/s21155049
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Communication

Distributed Static and Dynamic Strain Measurements in Polymer Optical Fibers by Rayleigh Scattering

by
Agnese Coscetta
1,
Ester Catalano
1,
Enis Cerri
1,
Ricardo Oliveira
2,
Lucia Bilro
2,
Luigi Zeni
1,
Nunzio Cennamo
1 and
Aldo Minardo
1,*
1
Department of Engineering, Università della Campania Luigi Vanvitelli, Via Roma 29, 81031 Aversa, Italy
2
Instituto de Telecomunicações, Campus Universitário de Santiago, Universidade de Aveiro, 3810-193 Aveiro, Portugal
*
Author to whom correspondence should be addressed.
Sensors 2021, 21(15), 5049; https://doi.org/10.3390/s21155049
Submission received: 17 June 2021 / Revised: 21 July 2021 / Accepted: 23 July 2021 / Published: 26 July 2021
(This article belongs to the Special Issue Pervasive Fiber Optic Sensor Technology: Improvements and Applications)
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Abstract

We demonstrate the use of a graded-index perfluorinated optical fiber (GI-POF) for distributed static and dynamic strain measurements based on Rayleigh scattering. The system is based on an amplitude-based phase-sensitive Optical Time-Domain Reflectometry (ϕ-OTDR) configuration, operated at the unconventional wavelength of 850 nm. Static strain measurements have been carried out at a spatial resolution of 4 m and for a strain up to 3.5% by exploiting the increase of the backscatter Rayleigh coefficient consequent to the application of a tensile strain, while vibration/acoustic measurements have been demonstrated for a sampling frequency up to 833 Hz by exploiting the vibration-induced changes in the backscatter Rayleigh intensity time-domain traces arising from coherent interference within the pulse. The reported tests demonstrate that polymer optical fibers can be used for cost-effective multiparameter sensing.
Keywords: distributed optical fiber sensors; vibration sensors; polymer optical fibers distributed optical fiber sensors; vibration sensors; polymer optical fibers

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MDPI and ACS Style

Coscetta, A.; Catalano, E.; Cerri, E.; Oliveira, R.; Bilro, L.; Zeni, L.; Cennamo, N.; Minardo, A. Distributed Static and Dynamic Strain Measurements in Polymer Optical Fibers by Rayleigh Scattering. Sensors 2021, 21, 5049. https://doi.org/10.3390/s21155049

AMA Style

Coscetta A, Catalano E, Cerri E, Oliveira R, Bilro L, Zeni L, Cennamo N, Minardo A. Distributed Static and Dynamic Strain Measurements in Polymer Optical Fibers by Rayleigh Scattering. Sensors. 2021; 21(15):5049. https://doi.org/10.3390/s21155049

Chicago/Turabian Style

Coscetta, Agnese, Ester Catalano, Enis Cerri, Ricardo Oliveira, Lucia Bilro, Luigi Zeni, Nunzio Cennamo, and Aldo Minardo. 2021. "Distributed Static and Dynamic Strain Measurements in Polymer Optical Fibers by Rayleigh Scattering" Sensors 21, no. 15: 5049. https://doi.org/10.3390/s21155049

APA Style

Coscetta, A., Catalano, E., Cerri, E., Oliveira, R., Bilro, L., Zeni, L., Cennamo, N., & Minardo, A. (2021). Distributed Static and Dynamic Strain Measurements in Polymer Optical Fibers by Rayleigh Scattering. Sensors, 21(15), 5049. https://doi.org/10.3390/s21155049

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